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Journal articles on the topic 'Circular dichroism'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

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1

Furusawa, Gaku, and Tetsuo Kan. "Au Nanospirals Transferred onto PDMS Film Exhibiting Circular Dichroism at Visible Wavelengths." Micromachines 11, no. 7 (June 29, 2020): 641. http://dx.doi.org/10.3390/mi11070641.

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We propose a thin, single-layered circular dichroic filter with Au nanospiral structures on a polydimethylsiloxane (PDMS) thin film that has strong circular dichroism at visible wavelengths. Au nanospiral structures with a diameter of 70 nm were fabricated by cryogenic glancing angle deposition on a substrate with a nanodot array template patterned with the block copolymer PS-PDMS. The Au nanospiral structures were transferred onto a transparent and flexible PDMS thin film to fabricate a thin, single-layered circular dichroic filter. The filter had a very large circular dichroism peak of −830 mdeg at 630 nm. The results show that the Au nanospiral structures transferred onto PDMS thin film exhibit large circular dichroism at visible wavelengths.

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2

Rogalev, Andrei, Alexei Bosak, Fabrice Wilhelm, and Jose Goulon. "X-ray Natural Circular Dichroism." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1518. http://dx.doi.org/10.1107/s2053273314084812.

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Natural Circular Dichroism was only recently discovered in the x-ray range[1]. This effect stems from the interference terms which mix multipole transition moments of opposite parity: the Electric Dipole-Electric Quadrupole (E1.E2) and the Electric Dipole-Magnetic Dipole (E1.M1) exist only in structures with broken space inversion symmetry. The scalar E1.M1 term known to be responsible for Circular Dichroism at optical wavelengths is usually considered to be vanishingly small for core level spectroscopies. The E1.E2 interference term, on the contrary, can be large in the X-ray region, but it is a parity odd second rank tensor and therefore observable only in 13 non-centrosymmetric crystal classes. X-ray Natural Circular Dichroism has now been detected in the XANES region for several uniaxial and biaxial crystals. It can give access to the absolute configuration of chiral absorbing centers. On the other hand, Chiral-EXAFS, i.e. the analog of Magnetic-EXAFS for Natural Circular Dichroism has also been measured recently using a uniaxial optically active crystal of paratellurite (TeO2). Chiral-EXAFS originates from symmetry allowed multiple scattering paths. In this presentation, we wish to report on recent advances in X-ray natural circular dichroism and its applications. Determination of absolute configuration is illustrated with measurements of both E1.E2 and E1.M1 terms in chiral alpha-Ni(H2O)6·SO4 single crystals. Manifestation of X-ray optical acitivity in magnetoelectric crystals will be illustrated with various dichroisms measured at the Fe K-edge in multiferroic GaFeO3 crystal. Finally, we will review briefly the perspectives open by our experiments.

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3

Kuball, Hans-Georg. "Circular Dichroism and Linear Dichroism." Zeitschrift für Physikalische Chemie 212, Part_1 (January 1999): 118–19. http://dx.doi.org/10.1524/zpch.1999.212.part_1.118.

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4

Ishijima, Shizuo, Miwako Higashi, and Hiroyuki Yamaguchi. "Magnetic Circular Dichroism and Circular Dichroism Spectra of Xanthones." Journal of Physical Chemistry 98, no. 41 (October 1994): 10432–35. http://dx.doi.org/10.1021/j100092a008.

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5

K, Manish. "Pharmaceutical Applications of Circular Dichroism for Nanomaterial’s." Advances in Clinical Toxicology 4, no. 4 (2019): 1–5. http://dx.doi.org/10.23880/act-16000173.

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6

Stephens, P. J., and M. A. Lowe. "Vibrational Circular Dichroism." Annual Review of Physical Chemistry 36, no. 1 (October 1985): 213–41. http://dx.doi.org/10.1146/annurev.pc.36.100185.001241.

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7

Waldron, Daniel E., Rachel Marrington, Marcus C. Grant, Matthew R. Hicks, and Alison Rodger. "Capillary circular dichroism." Chirality 22, no. 1E (2010): E136—E141. http://dx.doi.org/10.1002/chir.20878.

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8

Magyarfalvi, Gábor, György Tarczay, and Elemér Vass. "Vibrational circular dichroism." Wiley Interdisciplinary Reviews: Computational Molecular Science 1, no. 3 (April 11, 2011): 403–25. http://dx.doi.org/10.1002/wcms.39.

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9

Warnke, Ingolf, and Filipp Furche. "Circular dichroism: electronic." WIREs Computational Molecular Science 2, no. 1 (July 5, 2011): 150–66. http://dx.doi.org/10.1002/wcms.55.

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10

Shindo, Yohji, and Masayuki Nakagawa. "Circular dichroism measurements. I. Calibration of a circular dichroism spectrometer." Review of Scientific Instruments 56, no. 1 (January 1985): 32–39. http://dx.doi.org/10.1063/1.1138467.

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11

Partini, Juliasih. "Efek Circular Dichroism pada Metamaterial Chiral Planar." Risalah Fisika 2, no. 2 (July 31, 2018): 49–52. http://dx.doi.org/10.35895/rf.v2i2.113.

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Abstrak – Penelitian ini mengkaji efek circular dichroism pada metamaterial chiral planar. Bidang polarisasi akan terotasi ketika cahaya yang terpolarisasi linear melewati metamaterial chiral planar. Pada efek circular dichroism, cahaya yang terpolarisasi circular putaran kanan dan putaran kiri akan mempunyai perbedaan absorpsi dalam interaksinya dengan partikel penyusun metamaterial chiral planar. Spektrum eliptisitas metamaterial chiral planar menunjukkan eliptisitas bahan yang bernilai positif untuk sampel putar kanan dan bernilai negatif untuk sampel putar kiri. Nilai eliptisitas diperoleh sebesar maksimal +0,3 dan -0,3 terjadi pada frekuensi 1,29 THz. Eliptisitas maksimum menunjukkan adanya kopling antara foton dengan plasmon permukaan sampel. Polaritas yang berlawanan menunjukkan perbedaan absorbansi antara sampel putar kanan dan sampel putar kiri. Hasil tersebut juga menunjukkan adanya perubahan polarisasi linear pada laser femtosekon menjadi polarisasi eliptik pada gelombang THz hasil emisi sampel metamaterial chiral planar. Kemampuan metamaterial chiral planar dalam memutar bidang polarisasi dan merubah menjadi polarisasi circular menjadikan bahan ini layak dijadikan alternatif polarisator dalam ranah terahertz. Kata kunci: metamaterial, circular dichroism, chirality, polarisasi, eliptisitasAbstract – This paper describes the circular dichroism effect on planar chiral metamaterial. When a linearly polarized light passes through the planar chiral metamaterial, its polarization plane will rotate. On the circular dichroism effect, the right and left circulary polarized light will have different absorption due to its interaction with a planar chiral metamaterial. The ellipticity spectrum of a planar chiral metamaterial sample shows a positive ellipticity value for the counter clock-wise sample and a negative value for the clock-wise sample. The maximum ellipticity value is determine as +0,3 and -0,3 at frequency of 1,29 THz. The values show the existence of a coupling between photon and the sample surface plasmon. The opposite polarity indicates that the clock-wise and the counter clock-wise sample have different absorbance. The determined ellipticity value also reveals that the linearly polarized femtosecond laser light has transformed to elliptical polarized THz wave on a planar chiral metamaterial sample emission. The planar chiral metamaterial capability to rotate the polarization plane into circulary polarized wave, makes the material can be considered as an alternative polarizer in terahertz field. Key words: metamaterial, circular dichroism, chirality, polarization, ellipticity

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12

Brown, Zachary, and Ronald Starkey. "Circular Birefringence and Circular Dichroism Simulation." Journal of Chemical Education 82, no. 7 (July 2005): 1100. http://dx.doi.org/10.1021/ed082p1100.2.

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13

Lees, J. G., and B. A. Wallace. "Synchrotron radiation circular dichroism and conventional circular dichroism spectroscopy: A comparison." Spectroscopy 16, no. 3-4 (2002): 121–25. http://dx.doi.org/10.1155/2002/280646.

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Conventional circular dichroism (cCD) spectroscopy is a valuable tool for secondary structure analyses of proteins. In recent years, it has been possible to use synchrotrons as light sources for CD, with the technique being known as Synchrotron Radiation Circular Dichroism (SRCD). In this study, the spectra of two proteins, the primarily helical myoglobin and the primarily beta‒sheet concanavalin A, have been collected on both a cCD instrument and on the SRCD at the Daresbury synchrotron and their characteristics were compared. Over the wavelength regions where both instruments are capable of making measurements (from about 300 to 175 nm) the spectra are very similar, except at the low wavelength extreme of the cCD spectra. In this region, the spectra deviate somewhat, due to the limitations of the light source intensity in the conventional instrument. The SRCD spectra extend to much lower wavelengths (160 nm). This additional low wavelength vacuum ultraviolet (VUV) data contains a large amount of extra information, including, for the first time, a number of peaks consistent with previously predicted charge transfer transitions.

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14

Stephens, P. J., G. M. Jensen, F. J. Devlin, T. V. Morgan, C. D. Stout, A. E. Martin, and B. K. Burgess. "Circular dichroism and magnetic circular dichroism of Azotobacter vinelandii ferredoxin I." Biochemistry 30, no. 13 (April 2, 1991): 3200–3209. http://dx.doi.org/10.1021/bi00227a007.

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15

Lehmann, Carl Stefan, and Karl-Michael Weitzel. "Coincident measurement of photo-ion circular dichroism and photo-electron circular dichroism." Physical Chemistry Chemical Physics 22, no. 24 (2020): 13707–12. http://dx.doi.org/10.1039/d0cp01376e.

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Photo-ion circular dichroism (PICD) and photo-electron circular dichroism (PECD) have been measured for the first time simultaneously in a coincidence experiment detecting the chirality of R- and S-Methyloxirane.

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16

Vaara, Juha, Antonio Rizzo, Joanna Kauczor, Patrick Norman, and Sonia Coriani. "Nuclear spin circular dichroism." Journal of Chemical Physics 140, no. 13 (April 7, 2014): 134103. http://dx.doi.org/10.1063/1.4869849.

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17

Yeston, J. "Perils in Circular Dichroism." Science 324, no. 5933 (June 11, 2009): 1366. http://dx.doi.org/10.1126/science.324_1366c.

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18

Arteaga, Oriol, Zoubir El-Hachemi, and Razvigor Ossikovski. "Snapshot circular dichroism measurements." Optics Express 27, no. 5 (February 22, 2019): 6746. http://dx.doi.org/10.1364/oe.27.006746.

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19

Marshall, Doug. "Optimizing Circular Dichroism Spectroscopy." Genetic Engineering & Biotechnology News 38, no. 10 (May 15, 2018): 20–21. http://dx.doi.org/10.1089/gen.38.10.07.

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20

Polavarapu, P. L. "Rotational—vibrational circular dichroism." Chemical Physics Letters 161, no. 6 (September 1989): 485–90. http://dx.doi.org/10.1016/0009-2614(89)87025-3.

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21

BUCHECKER, R., and K. NOACK. "ChemInform Abstract: Circular Dichroism." ChemInform 26, no. 32 (August 17, 2010): no. http://dx.doi.org/10.1002/chin.199532314.

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22

Ripperger, Helmut, Claus Lindig, and G�nther Snatzke. "Circular Dichroism of Cardenolides." Journal f�r Praktische Chemie/Chemiker-Zeitung 340, no. 5 (1998): 476–78. http://dx.doi.org/10.1002/prac.19983400512.

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23

Taniguchi, Tohru, and Kenji Monde. "Practical Use of Circular Dichroism and Vibrational Circular Dichroism for Structural Analysis." Journal of Synthetic Organic Chemistry, Japan 75, no. 5 (2017): 522–29. http://dx.doi.org/10.5059/yukigoseikyokaishi.75.522.

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24

Wallace, B. A., and Robert W. Janes. "Circular dichroism and synchrotron radiation circular dichroism spectroscopy: tools for drug discovery." Biochemical Society Transactions 31, no. 3 (June 1, 2003): 631–33. http://dx.doi.org/10.1042/bst0310631.

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CD spectroscopy is an established and valuable technique for examining protein structure, dynamics and folding. Because of its ability to sensitively detect conformational changes, it has important potential for drug discovery, enabling screening for ligand and drug binding, and detection of potential candidates for new pharmaceuticals. The binding of the anti-tumour agent Taxol to the anti-apoptosis protein Bcl-2 [Rodi, Janes, Sanganee, Holton, Wallace and Makowski (1999) J. Mol. Biol. 285, 197–204] and the binding of the anti-epileptic drug lamotrigine to voltage-gated sodium channels [Cronin, O'Reilly, Duclohier and Wallace (2003) J. Biol. Chem. 278, 10675–10682] are used as examples to show changes detectable by CD involving secondary structure, and are contrasted with the binding of the agonist carbamylcholine to acetylcholine receptors [Mielke and Wallace (1988) J. Biol. Chem. 263, 8177–8182], an example where binding does not involve a secondary structural change. Synchrotron radiation CD spectroscopy offers significant enhancements with respect to conventional CD spectroscopy, which will enable its usage for high-throughput screening and as a tool in ‘chemical genomics’ or ‘reverse chemical genetics’ strategies for ligand identification. The lower wavelength data available enable more detailed, sensitive and accurate detection, the higher light intensity permits much smaller amounts of both proteins and drug candidates to be used in the screening, and future technological developments in sample handling and detection should enable automated high-throughput screening to be performed.

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25

WALLACE, B. A., and ROBERT W. JANES. "Circular dichroism and synchrotron radiation circular dichroism spectroscopy: tools for drug discovery." Biochemical Society Transactions 31, no. 6 (December 1, 2003): 1531. http://dx.doi.org/10.1042/bst0311531.

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26

Polavarapu, Prasad L., and Gang-Chi Chen. "Polarization-Division Interferometry: Far-Infrared Dichroism." Applied Spectroscopy 48, no. 11 (November 1994): 1410–18. http://dx.doi.org/10.1366/0003702944028119.

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We report the first far-infrared dichroism measurements using a polarization-division interferometer (PDI) developed in our laboratory. This interferometer uses a free-standing wire-grid beamsplitter made of tungsten wires. In conjunction with a linear polarizer in front of the source and two roof-top mirrors (one in each arm of the interferometer), the PDI divides the input beam into two orthogonal linear polarization components, recombines them for interference at the beamsplitter, and directs the output beam at 90° to the direction of the input beam. Light exiting the interferometer is manipulated with far-infrared lenses, to avoid polarization distortions that are inherent to the reflecting surfaces of the mirrors. The performance of the PDI is evaluated by measuring the linear dichroism of oriented PVF2 [poly(vinylidenefluoride) and circular dichroism of α-pinene, camphor, and 3-methylcyclohexanone. The dichroic multiplex advantage (ability to measure dichroism in the entire far-infrared region from a single measurement) and throughput advantage are demonstrated. These measurements establish the utility of the PDI in measuring transmission and linear dichroism spectra simultaneously without the need for any additional components. Additional developments appear necessary to establish the circular dichroism measurements when the magnitudes are less than one part in one thousand.

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27

Polavarapu, Prasad L., Gang-Chi Chen, and Stephen Weibel. "Development, Justification, and Applications of a Mid-Infrared Polarization-Division Interferometer." Applied Spectroscopy 48, no. 10 (October 1994): 1224–35. http://dx.doi.org/10.1366/0003702944027381.

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We report the development of a polarization-division interferometer (PDI) for the mid-infrared region. This interferometer uses a self-designed beamsplitter constructed in-house from a BaF2 polarizer and a matching substrate. In conjunction with a linear polarizer in front of the source and two roof-top mirrors, one in each arm of the interferometer, the PDI divides the input beam into two orthogonal linear polarization components, recombines them for interference at the beamsplitter, and directs the output beam at 90° to the direction of the input beam. Light exiting the interferometer is manipulated entirely with lenses, to avoid polarization distortions that are inherent to the reflecting surfaces of the mirrors. Details of the instrumental design for this mid-infrared PDI are presented. The performance of the PDI is evaluated by measuring the circular dichroism of α-pinene and camphor and the linear dichroism of oriented polypropylene and polystyrene. These measurements establish the utility of the PDI to measure transmission, circular dichroism, and linear dichroism spectra simultaneously without need for any additional components. The dichroic multiplex advantage (ability to measure dichroism in the entire mid-infrared region from a single measurement) and throughput advantage are demonstrated.

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28

Cheng, Yang, Yongfeng Li, He Wang, Jiafu Wang, Zhe Qin, and Shaobo Qu. "Circular dichroism assisted bi-directional absorbers." Journal of Physics D: Applied Physics 55, no. 9 (November 17, 2021): 095101. http://dx.doi.org/10.1088/1361-6463/ac3301.

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Abstract Chirality, a geometric property that is of great importance in chemistry, biology, and medicine, has spurred many breakthroughs in the field of multi-dimensional metasurfaces that provide efficient ways of flexibly manipulating amplitude and phase of circular polarization (CP) waves. As one of the most important applications, chiral metamaterials can be used to implement novel absorbers. Herein, an ultra-thin wideband circular dichroic asymmetric metasurface was implemented via loading resistive film into chiral resonators. Opposite and reversible polarization conversion and circular dichroism (CD) were realized as being illuminated by CP waves from both sides meanwhile. Theoretical derivation and simulation verify that the polarization conversion and CD enhancement utilizing multi-layer CD metasurface. It is also found that the orientation angle of the meta-atom of each layer plays an important role in the CD enhancement, which paves a new way for CD enhancement. In addition, the coupling between the CD resonators was utilized to manipulate CD. On this basis, an ultra-thin polarization-insensitive absorber was achieved by employing a C4 2 × 2 CD resonator array, which was identical illuminating from front and back sides. Circular dichroic absorbers possess great potential in practical applications, ranging from stealth technology, antenna isolation, multi-functional microwave devices, chiral sensing, and catalysis.

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29

Garab, Győző, and Herbert van Amerongen. "Linear dichroism and circular dichroism in photosynthesis research." Photosynthesis Research 101, no. 2-3 (May 6, 2009): 135–46. http://dx.doi.org/10.1007/s11120-009-9424-4.

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30

XU, JING, KEVIN W. PLAXCO, and S. JAMES ALLEN. "THz SPECTROSCOPY OF PROTEINS IN WATER: DIRECT ABSORPTION AND CIRCULAR DICHROISM." International Journal of High Speed Electronics and Systems 17, no. 04 (December 2007): 709–18. http://dx.doi.org/10.1142/s0129156407004916.

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Many of the functionally relevant collective vibrations of proteins and other biopolymers are expected to occur at terahertz frequencies. Precise absorption measurements combined with careful titration of biopolymers in water have allowed us to directly measure the terahertz absorption spectra associated with these motions, despite the strong background absorption of the solvent. We have also explored the circular dichroism spectroscopy of biomolecules over this same frequency range. Since circular dichroism requires the presence of net chirality in a molecule and chirality is present in nearly all biomaterial, it has the potential to capture the background free spectral features in biopolymers. To undertake these studies we have developed a broad band terahertz spectrometer suitable for both direct absorption and circular dichroism measurements of proteins in water between 0.75 – 3.72 THz. Direct terahertz absorption spectra of prototypical proteins bovine serum albumin (BSA) and hen egg white lysozyme have been documented and are described here. We have also successfully demonstrated the magnetic circular dichroism in semiconductors, and placed an upper bound on the terahertz circular dichroism signature of solvated BSA. In the terahertz frequency range, it appears that circular dichroism signatures are exceedingly small and detection remains a challenge.

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31

Cheng, Bo, Yuxiao Zou, and Guofeng Song. "Full Stokes Mid-Wavelength Infrared Polarization Photodetector Based on the Chiral Dielectric Metasurface." Photonics 11, no. 6 (June 18, 2024): 571. http://dx.doi.org/10.3390/photonics11060571.

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Conventional imaging techniques can only record the intensity of light while polarization imaging can record the polarization of light, thus obtaining a higher dimension of image information. We use the COMSOL software to numerically propose a circular polarization photodetector composed of the dislocated 2-hole Si chiral metasurfaces controlling the circular polarization lights and the HgCdTe (MCT) photodetector chip to detect the intensity of light signals. The chiral metasurfaces can be equated to a significant radiation source of the Z-type current density under the right circularly polarized incidence conditions, which explains the large circular dichroism (CD) of absorption of 95% in chiral photodetectors. In addition, the linear dichroism (LD) of the linear polarization pixel is 0.62, and the extinction ratio (ER) is 21 dB. The full Stokes pixel using the six-image-element technique can almost measure arbitrary polarization information of light at 4 μm operation wavelength. Our results highlight the potential of circular dichroic metasurfaces as photonic manipulation platforms for miniaturized polarization detectors.

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32

Safin, F. M., V. G. Maslov, A. Y. Dubavik, E. P. Kolesova, A. V. Baranov, and A. V. Fedorov. "Photochemically Induced Circular Dichroism of Semiconductor Nanocrystals-=SUP=-*-=/SUP=-." Журнал технической физики 128, no. 8 (2020): 1192. http://dx.doi.org/10.21883/os.2020.08.49723.1008-20.

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Here, we report an investigation of optical activity which was photochemically induced by illumination of QRs and DiRs with circularly polarized light; the photo-induced circular dichroism was quantitatively estimated, and it was shown that the photo-induced chemical reaction proceeds selectively, depending on the handedness of circularly polarized light. Keywords: chirality, optical activity, circular dichroism, photoinduced circular dichroism, semiconductor nanocrystals, quantum rods, quantum dot-in-rods.

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33

FECHER, G. H., J. BRAUN, A. OELSNER, CH OSTERTAG, and G. SCHÖNHENSE. "DICHROISM IN ANGLE-RESOLVED PHOTOEMISSION FROM Pt(111)." Surface Review and Letters 09, no. 02 (April 2002): 883–88. http://dx.doi.org/10.1142/s0218625x0200310x.

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The angular dependence of the circular dichroism in photoemission from Pt(111) was investigated for excitation with VUV and soft X-ray radiation. VUV excitation was used to probe band structure and the circular dichroism for valence band emission. The measurements are compared to full relativistic single step photoemission calculations. XPS was used to investigate the circular dichroism in emission from the 4f core level. In this case, the dichroism is induced by photoelectron diffraction. First results from single step core level calculations are compared to the experimental observations.

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34

Hong, Aram, Changseop Jeong, Heeseon Jang, Myoung Choul Choi, Jiyoung Heo, and Nam Joon Kim. "Fluorescence-detected circular dichroism spectroscopy of jet-cooled ephedrine." Physical Chemistry Chemical Physics 18, no. 11 (2016): 7762–67. http://dx.doi.org/10.1039/c5cp07438j.

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35

Olesiak-Banska, Joanna, Magdalena Waszkielewicz, and Marek Samoc. "Two-photon chiro-optical properties of gold Au25 nanoclusters." Physical Chemistry Chemical Physics 20, no. 38 (2018): 24523–26. http://dx.doi.org/10.1039/c8cp05256e.

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36

Miles, Andrew J., Frank Wien, Jonathan G. Lees, A. Rodger, Robert W. Janes, and B. A. Wallace. "Calibration and Standardisation of Synchrotron Radiation Circular Dichroism and Conventional Circular Dichroism Spectrophotometers." Spectroscopy 17, no. 4 (2003): 653–61. http://dx.doi.org/10.1155/2003/379137.

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Synchrotron radiation circular dichroism (SRCD) is an emerging technique in structural biology with particular value in protein secondary structure analyses since it permits the collection of data down to much lower wavelengths than conventional circular dichroism (cCD) instruments. Reference database spectra collected on different SRCD instruments in the future as well as current reference datasets derived from cCD spectra must be compatible. Therefore there is a need for standardization of calibration methods to ensure quality control. In this study, magnitude and optical rotation measurements on four cCD and three SRCD instruments were compared at 192.5, 219, 290 and 490 nm. At high wavelengths, all gave comparable results, however, at the lower wavelengths, some variations were observable. The consequences of these differences on the spectrum, and the calculated secondary structure, of a representative protein (myoglobin) are demonstrated. A method is proposed for standardising spectra obtained on any CD instrument, conventional or synchrotron‒based, with respect to existing and future databases.

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37

Kawamura, Masahiro, and Miwako Higashi. "Induced Circular Dichroism and Magnetic Circular Dichroism Spectra of Maleimide and Related Molecules." Helvetica Chimica Acta 86, no. 7 (July 2003): 2342–48. http://dx.doi.org/10.1002/hlca.200390188.

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38

Abbate, Sergio, Giovanna Longhi, John W. Givens, Stefan E. Boiadjiev, David A. Lightner, and Albert Moscowitz. "Observation of Vibrational Circular Dichroism for Overtone Transitions with Commercially Available CD Spectrometers." Applied Spectroscopy 50, no. 5 (May 1996): 642–43. http://dx.doi.org/10.1366/0003702963905934.

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It is demonstrated that some commercially available circular dichroism spectrometers can be used to gather vibrational circular dichroism data associated with overtone transitions. By way of specific example, the circular dichroism spectra of neat S−(−)−limonene and R-(+)-limonene are measured in the region 800–600 nm. The observed spectral features correspond to the overtone bands Δ v = 5 and 6 for CH-stretching motions. A discussion of the data is also given.

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39

Prabodh, Amrutha, Yichuan Wang, Stephan Sinn, Paolo Albertini, Christian Spies, Eduard Spuling, Liu-Pan Yang, Wei Jiang, Stefan Bräse, and Frank Biedermann. "Fluorescence detected circular dichroism (FDCD) for supramolecular host–guest complexes." Chemical Science 12, no. 27 (2021): 9420–31. http://dx.doi.org/10.1039/d1sc01411k.

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Fluorescence-detected circular dichroism (FDCD) spectroscopy is applied for the first time to supramolecular host–guest and host–protein systems and compared to the more known electronic circular dichroism (ECD).

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40

Daly, Steven, Frédéric Rosu, and Valérie Gabelica. "Mass-resolved electronic circular dichroism ion spectroscopy." Science 368, no. 6498 (June 25, 2020): 1465–68. http://dx.doi.org/10.1126/science.abb1822.

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DNA and proteins are chiral: Their three-dimensional structures cannot be superimposed with their mirror images. Circular dichroism spectroscopy is widely used to characterize chiral compounds, but data interpretation is difficult in the case of mixtures. We recorded the electronic circular dichroism spectra of DNA helices separated in a mass spectrometer. We studied guanine-rich strands having various secondary structures, electrosprayed them as negative ions, irradiated them with an ultraviolet nanosecond optical parametric oscillator laser, and measured the difference in electron photodetachment efficiency between left and right circularly polarized light. The reconstructed circular dichroism ion spectra resembled those of their solution-phase counterparts, thereby allowing us to assign the DNA helical topology. The ability to measure circular dichroism directly on biomolecular ions expands the capabilities of mass spectrometry for structural analysis.

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41

Ru, Jing, Ru-Fen Zhang, Yang Shi, Shao-Liang Zhang, Qian-Li Li, and Chun-Lin Ma. "Synthesis, structures and magnetic properties of heterobimetallic RuIII–3d (3d = Mn, Ni) compounds based on the chiral RuIII building block." New Journal of Chemistry 42, no. 19 (2018): 16237–43. http://dx.doi.org/10.1039/c8nj03747g.

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Two pairs of new chiral Ru^III–Mn/Ni compounds have been successfully synthesized and characterized by IR spectroscopy, X-ray crystallography, circular dichroism (CD) and vibrational circular dichroism (VCD) spectra.

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42

Pagni, R. M. "Circular Dichroism and Linear Dichroism (Rodger, Alison; Norden, Bengt)." Journal of Chemical Education 75, no. 9 (September 1998): 1095. http://dx.doi.org/10.1021/ed075p1095.

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43

Rustam, Ya, B. Bakhodir, M. Ikbol, and N. Shokhrukh. "ON THE THEORY OF ONE-PHOTON ABSORPTION OF POLARIZED LIGHT IN NARROW-GAP CRYSTALS. TAKING INTO ACCOUNT THE EFFECT OF COHERENT SATURATION." EurasianUnionScientists 5, no. 1(82) (February 15, 2021): 56–59. http://dx.doi.org/10.31618/esu.2413-9335.2021.5.82.1235.

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In the article, from a microscopic point of view, the linear-circular dichroism of one-photon between band absorption of light in the Kane approximation in narrow-gap crystals is investigated. The linear-circular dichroism of one-photon absorption of polarized light is calculated taking into account the effect of coherent saturation in photoexcited charge carriers. The matrix elements of one-photon interband optical transitions and the corresponding linear-circular dichroism and the spectral dependence of the light absorption coefficient are calculated.

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44

Rodger, Alison, and Doug Marshall. "Beginners guide to circular dichroism." Biochemist 43, no. 2 (March 26, 2021): 58–64. http://dx.doi.org/10.1042/bio_2020_105.

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Circular dichroism (CD) is used to give information about the chirality or handedness of molecular systems. It is particularly widely applied to determine the secondary structure of proteins such as biopharmaceutical products.

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45

Kim, Jae-Young. "X-Ray Magnetic Circular Dichroism." Journal of the Korean Magnetics Society 20, no. 5 (October 31, 2010): 201–5. http://dx.doi.org/10.4283/jkms.2010.20.5.201.

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46

TERAMAE, Norio. "Measurements of infrared circular dichroism." Journal of the Spectroscopical Society of Japan 35, no. 1 (1986): 65–67. http://dx.doi.org/10.5111/bunkou.35.65.

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47

Dodero, Veronica Isabel. "Biomolecular studies by circular dichroism." Frontiers in Bioscience 16, no. 1 (2011): 61. http://dx.doi.org/10.2741/3676.

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48

Eilfeld, Petra H., and Peter G. Eilfeld. "Circular dichroism of phytochrome intermediates." Physiologia Plantarum 74, no. 1 (September 1988): 169–75. http://dx.doi.org/10.1111/j.1399-3054.1988.tb04959.x.

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49

Berakdar, Jamal, and Hubert Klar. "Circular dichroism in double photoionization." Physical Review Letters 69, no. 8 (August 24, 1992): 1175–77. http://dx.doi.org/10.1103/physrevlett.69.1175.

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50

STRICKLAND, THOMAS W., and DAVID PUETT. "Circular dichroism of gonadotropin recombinants." International Journal of Peptide and Protein Research 21, no. 4 (January 12, 2009): 374–80. http://dx.doi.org/10.1111/j.1399-3011.1983.tb03118.x.

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