Academic literature on the topic 'Host - guest inclusion complexes'

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Journal articles on the topic "Host - guest inclusion complexes"

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Mejuto, Juan C., and Jesus Simal-Gandara. "Host–Guest Complexes." International Journal of Molecular Sciences 23, no. 24 (December 12, 2022): 15730. http://dx.doi.org/10.3390/ijms232415730.

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Malinska, Maura. "Insights into molecular recognition from the crystal structures of p-tert-butylcalix[6]arene complexed with different solvents." IUCrJ 9, no. 1 (November 16, 2021): 55–64. http://dx.doi.org/10.1107/s2052252521010678.

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Calixarenes are host molecules that can form complexes with one or more guest molecules, and molecular recognition in calixarenes can be affected by many factors. With a view to establishing molecular recognition rules, the host p-tert-butylcalix[6]arene (TBC6) was crystallized with different guest molecules (cyclohexane, anisole, heptane, toluene, benzene, methyl acetate, ethyl acetate, dichloromethane, tetrahydrofuran and pyridine) and the obtained structures were characterized by X-ray diffraction. With most solvents, 1:1 and/or 1:3 host–guest complexes were formed, although other stoichiometries were also observed with small guest molecules, and crystallization from ethyl acetate produced the unsolvated form. The calculated fill percentage of the TBC6 cavity was ∼55% for apolar guests and significantly lower for polar solvents, indicating that polar molecules can bind to apolar cavities with significantly lower packing coefficients. The most stable crystals were formed by 1:1 host–guest inclusion complexes. The ratio between the apolar surface area and the volume was used to predict the formation of inclusion versus exclusion complexes, with inclusion complexes observed at ratios <40. These findings allow the binding of potential guest molecules to be predicted and a suitable crystal packing for the designed properties to be obtained.
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Toda, Fumio. "Crystalline inclusion complexes as media of molecular recognitions and selective reactions." Pure and Applied Chemistry 73, no. 7 (July 1, 2001): 1137–45. http://dx.doi.org/10.1351/pac200173071137.

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Hexaol host compounds which include guest molecules maximum in 1:6 ratio were prepared. Aromatic hexaol host, hexahydroxytriphenylene, was found to form chiral inclusion crystal by complexation with achiral guest molecules. Some interesting and important optical resolutions of rac-guests by inclusion complexation with a chiral host were described. When chemical reaction and the inclusion complexation procedures in a water suspension medium are combined, new economical and ecological method of the preparation of optically active compound can be established. When photochemical reactions are carried out in an inclusion crystal with a chiral host, enantioselective reactions occur, and optically active product can be obtained. Several successful reactions are described.
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Kadu, Rahul, Vineeta Pillai, Amrit V., and Vinay K. Singh. "Synthesis and spectral characterization of bimetallic metallomacrocyclic structures [MII2-μ2-bis-{(κ2S,S-S2CN(R)C6H4)2O}] (M = Ni/Zn/Cd): density functional theory and host–guest reactivity studies." RSC Advances 5, no. 129 (2015): 106688–99. http://dx.doi.org/10.1039/c5ra22175g.

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Hettiarachchi, D. Saroja N., and Donal H. Macartney. "Cucurbit[7]uril host-guest complexes with cationic bis(4,5-dihydro-1H-imidazol-2-yl) guests in aqueous solution." Canadian Journal of Chemistry 84, no. 6 (June 1, 2006): 905–14. http://dx.doi.org/10.1139/v06-099.

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The host–guest interactions between cucurbit[7]uril and a series of novel cationic bis(4,5-dihydro-1H-imidazol-2-yl)arene and 1-(4,5-dihydro-1H-imidazol-2-yl)- and 1,3-bis(4,5-dihydro-1H-imidazol-2-yl)-adamantane guests have been investigated in aqueous solution using UV–vis and NMR spectroscopy, and electrospray mass spectrometry. With the exception of the 1,3-bis(4,5-dihydro-1H-imidazol-2-yl)adamantane (which binds externally to the CB[7]), these guests form very stable inclusion complexes with slow exchange on the 1H NMR timescale. The direction and magnitude of the complexation-induced shifts (CIS) in the proton resonances of the guests are indicative of the residence of the hydrophobic core of the guest within the CB[7] cavity and the charged 4,5-dihydro-1H-imidazol-2-yl units outside the cavity adjacent to the carbonyl-lined portals of the host. The CIS values and the inclusion stability constants have been correlated with the nature of the guest core and with the distance between the charges on the terminal 4,5-dihydro-1H-imidazol-2-yl rings.Key words: cucurbit[7]uril, host–guest complex, dihydroimidazolyl, inclusion stability constants.
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Zhang, Meng, Nicolas Levaray, Josée R. Daniel, Karen C. Waldron, and X. X. Zhu. "Cholic acid dimers as invertible amphiphilic pockets: synthesis, molecular modeling, and inclusion studies." Canadian Journal of Chemistry 95, no. 7 (July 2017): 792–98. http://dx.doi.org/10.1139/cjc-2016-0621.

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Two dimers of cholic acid were synthesized through simple covalent linkers. The dimers form invertible molecular pockets in media of different polarity; hydrophobic pockets are formed in water and hydrophilic pockets are formed in organic media. Fluorescence studies show that pockets formed by these dimers can serve as invertible hosts for the hydrophobic guest pyrene and the hydrophilic guest coumarin 343. The molecular pocket also enhances dissolution of the weakly soluble cresol red sodium salt in organic media. Molecular modeling was performed to better understand the host–guest complexation process of the invertible amphiphilic pockets. The calculated free energy changes indicate that the two dimers form the most stable complexes with coumarin 343 at a host to guest ratio of 2:2, whereas the host to guest ratio differs in the formation of complexes with pyrene for the two dimers. The dimer with the shorter, less flexible linker seems to form host–guest complexes that are more stable in both water and organic solvents.
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Suwinska, Kinga. "Intermolecular interactions in inclusion complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C673. http://dx.doi.org/10.1107/s2053273314093267.

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The whole range of interactions can be found between host and guest in supramolecular assemblies from ion-ion interactions, ion-dipole interactions, dipol-dipol interactions through hydrogen bonding, cation-π interactions, π-π stacking to van der Waals forces. Additionally, the same interactions exist between the supramolecular complex and its surrounding, i.e. solvent molecules, neighboring complexes, gases, etc. Recently the interest of scientists in the field of supramolecular chemistry is focused on design and synthesis of water-soluble synthetic macrocyclic ligands which are good receptors for biologically important guest molecules and can mimic the models of biological systems. Studying such complexes may provide new insight into the mechanisms of the formation of similar natural systems and as a consequence will help in better understanding the processes which occur in biological systems and in developing new materials with specific properties and functions. In this presentation the interactions which are stabilizing inclusion complexes of calix[n]arenes and cyclodextrins (host molecules) with guest molecules of biological interest, especially drug molecules will be discussed. This research was partly financed by the European Union within the European Regional Development Fund (POIG.01.01.02-14-102/09)
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Gómez-González, Borja, Luis García-Río, Nuno Basílio, Juan C. Mejuto, and Jesus Simal-Gandara. "Molecular Recognition by Pillar[5]arenes: Evidence for Simultaneous Electrostatic and Hydrophobic Interactions." Pharmaceutics 14, no. 1 (December 28, 2021): 60. http://dx.doi.org/10.3390/pharmaceutics14010060.

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The formation of inclusion complexes between alkylsulfonate guests and a cationic pillar[5]arene receptor in water was investigated by NMR and ITC techniques. The results show the formation of host-guest complexes stabilized by electrostatic interactions and hydrophobic effects with binding constants of up to 107 M−1 for the guest with higher hydrophobic character. Structurally, the alkyl chain of the guest is included in the hydrophobic aromatic cavity of the macrocycle while the sulfonate groups are held in the multicationic portal by ionic interactions.
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Liu, Yu, Chang-Cheng You, Takehiko Wada, and Yoshihisa Inoue. "Effect of Host Substituent upon Inclusion Complexation of Aliphatic Alcohols with Organoseleno β-Cyclodextrins." Journal of Chemical Research 2000, no. 2 (February 2000): 90–92. http://dx.doi.org/10.3184/030823400103166490.

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The effect of self-including host substituent upon the inclusion complexation of arylseleno β-cyclodextrins with alkanol guests has been investigated in aqueous buffer solution at 25°C, by using spectropolarimetric titrations, and the results show that the stability constants of the host–guest complexes formed are correlated with the Hammett's σ value of the host's substituent.
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Fu, T. Y., J. R. Scheffer, and J. Trotter. "Structures and Photochemistry of Inclusion Compounds of 9,10-Dihydro-9,10-ethenoanthracene-11,12-bis(diphenylmethanol)." Acta Crystallographica Section B Structural Science 53, no. 2 (April 1, 1997): 300–305. http://dx.doi.org/10.1107/s0108768196013614.

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Crystal structures have been determined for inclusion complexes of the host molecule 9,10-dihydro-9,10-ethenoanthracene-11,12-bis(diphenylmethanol), with acetone, ethanol and toluene as guest solvent molecules. The host molecule exhibits an intramolecular O--H...O hydrogen bond in each of the complexes, with intermolecular hydrogen bonds to the acetone and ethanol guests. Different photoproducts are obtained from solution and solid-state photolyses; the solid-state reaction involves a relatively small amount of molecular rearrangement, for which a mechanism is proposed.
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Dissertations / Theses on the topic "Host - guest inclusion complexes"

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Bezuidenhout, Charl Xavier. "Polar ordering of guest molecules in host-guest inclusion complexes." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18107.

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Thesis (MSc)--Stellenbosch University, 2011.
ENGLISH ABSTRACT: 2,7-dimethylocta-3,5-diyne-2,7-diol forms inclusion complexes with various guests molecules, where the guest molecules are polar-ordered. A Cambridge Structural Database (CSD) search revealed ten inclusion complexes where the guest molecules were polar-ordered. Using Density Functional Theory (DFT) computational methods (in the absence of the host), we evaluated the intra-channel and lateral guest-guest interactions between the guest molecules. Two polar-ordered inclusion complexes ((1,4,7-cyclohexane-1,2,4,5,7,8-hexaoxonane)·CHCl3 and (2,4,6-(endolongifolyl)-1,3,5-trioxane)·CDCl3) were singled out in the CSD search for further studies along with 2,7-dimethylocta-3,5-diyne-2,7-diol. Synthesis of any 1,2,4,5,7,8-hexaoxonane and 1,3,5-trioxane derivatives was attempted to establish whether the polar-ordering ability extends into the family of compounds. We managed to produce three new polar-ordered inclusion complexes with 2,7-dimethylocta-3,5-diyne-2,7-diol (ClC(CH3)3, BrC(CH3)3 and IC(CH3)3), thus extending the series to six guest polar-ordered systems. We were only able to synthesise 1,4,7-cyclohexane-1,2,4,5,7,8-hexaoxonane and produce the CHCl3 inclusion complex and one new polar-ordered inclusion complex (CHBr3). Three 1,3,5-trioxanes was synthesised (the cyclohexyl, cyclohex-3-en-1-yl and cyclopentyl derivatives), which did not include any solvents. However, these 1,3,5-trioxanes also form polar-ordered crystals. These compounds and inclusion complexes were analysed by means of single crystal X-ray diffraction to determine their crystal structures. All the crystal structures could be solved and refined to adequate accuracy (except for 2,4,6-tri(cyclopentyl)-1,3,5-trioxane) with no disorder of the guest molecules (where applicable) and their polar-ordering property investigated. Due to their vast molecular differences, these compounds were studied separately by means of visual crystal structure analysis and computational modelling techniques (Density functional theory, molecular mechanics, molecular dynamics and molecular quench dynamics).
AFRIKAANSE OPSOMMING: 2,7-dimetielokta-3,5-diyn-2,7-diol vorm insluitingskomplekse met verskeie molekules as gaste, waar die gas-molekules polêr georden is. 'n Cambridge Struktuur Databasis (CSD) soektog lewer tien insluitings komplekse waarvan die gas-molekules polêr georden is. Deur gebruik te maak van Digtheidsfunksionele teorie (DFT) berekeninge (in die afwesigheid van die gasheer) het ons die inter-kanaal en wedersydse gas-gas interaksies tussen die gas molekules geëvalueer. Twee polêr geordende insluitingskomplekse ((1,4,7-sikloheksaan-1,2,4,5,7,8-heksaoksonaan)·CHCl3 en (2,4,6-(endolongifolyl)-1,3,5-trioksaan)·CDCl3) is uitgesonder uit die CSD soektog vir verdere studies saam met 2,7-dimetielokta-3,5-diyn-2,7-diol. Aanslag was gemaak om enige 1,2,4,5,7,8-heksaoksonaan en 1,3,5-trioksaan derivate te sintetiseer en vas te stel of die polêre ordensvermoë oor die familie van verbindings strek. Ons het daarin geslaag om drie nuwe polêr geordende insluitingskomplekse op te lewer met 2,7-dimetielokta-3,5-diyn-2,7-diol (Cl(CH3)3, BrC(CH3)3 en I(CH3)3), en sodoende die reeks uitgebrei na ses gaste wat polêr geordende insluitingskomplekse vorm. Net 1,4,7-sikloheksaan-1,2,4,5,7,8-heksaoksonaan kon gesintetiseer word en dit lewer twee polêr geordende insluitingskomplekse (CHCl3 en CHBr3 (nuut)). Drie 1,3,5-trioksane is gesintetiseer (die sikloheksiel, sikloheks-3-een-1-iel en siklopentiel derivate) en het nie enige oplosmiddels (gaste) ingesluit nie. Nietemin vorm hiedie 1,3,5-trioksane ook polêr geordende kristalle. Hierdie verbindings en insluitingskomplekse is geanaliseer deur middel van enkelkristal X-straal diffraksie om hul kristalstrukture te bepaal. Alle kristalstrukture was opgelos en verwerk tot voldoende akkuraatheid (behalwe vir 2,4,6-tri(siklopentiel)-1,3,5-trioxane) met geen wanorde in die gas molekuul posisies nie (waar van toepassing) en hul polêre ordensvermoë is ondersoek. As gevolg van groot verskille in hul molekulêre strukture, is hierdie verbindings afsonderlik bestudeer deur middel van molekulêre modellerings metodes (Digtheidsfunksionele teorie, molekulêre meganika, molekulêre dinamika en molekulêre stakings dinamika).
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Roy, Aditi. "Study to explore molecular inclusion complexes of cyclic hosts with vital guests in various environments." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2633.

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O'Brien, Mark. "Spectroscopic Studies of Inclusion Host-Guest Complexes Between Cyclophane Corrals and Polcyclic Aromatic Hydrocarbons." TopSCHOLAR®, 2005. http://digitalcommons.wku.edu/theses/470.

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Cyclophanes are macromolecules that are known to effectively bind with molecules to form host-guest complexes. Several cyclophane molecules, referred to as corrals (1-6) by their founders, have been synthesized. The characterization of these compounds and their complexes has been investigated using combined spectroscopic and theoretical methods. Hostguest interactions of cyclophane-anthracene (C-A), cyclophane-9-fluorenone (C-F) and cyclophane-pyrene (C-P) complex systems in dichloromethane are presented in this thesis. The stability constants, log Ka, for the C-A, C-F and C-P complexes are determined using absorption and fluorescence spectroscopy. Heats of formation of corral 2 complexes were determined by measuring the complex association constants at 25, 29 and 32 °C. Results reveal that binding of the non-polar guests by the cyclophane molecules are thermodynamically favored over binding with polar guest. Computational studies indicate difference in energy due to solvent effect of the complexes in the condensed phase. Excited state lifetimes of these systems are also determined, and they support fluorescence as a path of relaxing back to the ground state.
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Kundu, Mitali. "Exploration of inclusion complexes between host and guest molecules and solvation effect of some vital molecules in various environments." Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2689.

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Mondal, Jaygopal. "Solvation consequences of different aqueous media on some biologically active compounds: a physico-chemical study." Thesis, University of North Bengal, 2021. http://ir.nbu.ac.in/handle/123456789/4751.

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Barman, Siti. "Investigation on solvation behaviour and host guest inclusion complexes of some significant molecules with diverse cyclic compounds." Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2588.

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Roy, Niloy. "Synthesis, characterization and innovative applications of inclusion complexes and nanocomposites of some biologically potent molecules." Thesis, University of North Bengal, 2022. http://ir.nbu.ac.in/handle/123456789/4754.

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Groom, Jazerie J. "Evaluation of Apparent Formation Constants of Host-Guest Inclusion Complexes of Solutes with Soluble Calixarenes Using High Performance Liquid Chromatography." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1389273191.

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Saha, Binoy Chandra. "Host guest inclusion complexes and thermodynamic properties of some imperative molecules with the manifestation of diverse interections by physiochemical investigation." Thesis, University of North Bengal, 2020. http://ir.nbu.ac.in/handle/123456789/3966.

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Rahaman, Habibur. "Diverse Interactions of Some Significant Compounds Prevailing in Different Solvent Systems with the Manifestation of Solvation Consequence by Physicochemical Investigations." Thesis, University of North Bengal, 2019. http://ir.nbu.ac.in/handle/123456789/2814.

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Books on the topic "Host - guest inclusion complexes"

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1939-, Vögtle F., and Weber E, eds. Host guest complex chemistry: Macrocycles : synthesis, structures, applications. Berlin: Springer, 1985.

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1946-, Gokel George W., and Koga Kenji 1938-, eds. United States-Japan Seminar on Host-Guest Chemistry: Proceedings of the U.S.-Japan Seminar on Host-Guest Chemistry, Miami, Florida, U.S.A., 2-6 November 1987. Dordrecht: Kluwer Academic Publishers, 1989.

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A, Jenekhe Samson, ed. Macromolecular host-guest complexes: Optical, optoelectronic, and photorefractive properties and applications : symposium held April 27-28, 1992, San Francisco, California, U.S.A. Pittsburgh, Pa: Materials Research Society, 1992.

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Host-Guest Polymer Complexes. MDPI, 2018. http://dx.doi.org/10.3390/books978-3-03897-195-5.

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Host-Guest Chemistry: Supramolecular Inclusion in Solution. de Gruyter GmbH, Walter, 2020.

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Host-Guest Chemistry: Supramolecular Inclusion in Solution. de Gruyter GmbH, Walter, 2020.

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Host-Guest Chemistry: Supramolecular Inclusion in Solution. de Gruyter GmbH, Walter, 2020.

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Jenekhe, Samson A. Macromolecular Host-Guest Complexes: Optical, Optoelectronic, and Photorefractive Properties and Applications : Symposium Held April 27-28, 1992, San (Materials Research Society Symposium Proceedings). Materials Research Society, 1992.

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Book chapters on the topic "Host - guest inclusion complexes"

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Wagner, Brian D. "Host–Guest Inclusion Complexes." In Supramolecular Chemistry in Corrosion and Biofouling Protection, 17–40. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003169130-3.

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Cheetham, A. K., and B. K. Peterson. "Computer Simulations of Host-Guest Complexes." In Inclusion Phenomena and Molecular Recognition, 277–87. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0603-0_29.

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Toda, Fumio. "Reaction control of guest compounds in host-guest inclusion complexes." In Topics in Current Chemistry, 211–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/3-540-19338-3_5.

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Wagner, Brian D. "Fluorescence Studies of the Hydrogen Bonding of Excited-State Molecules within Supramolecular Host-Guest Inclusion Complexes." In Hydrogen Bonding and Transfer in the Excited State, 175–91. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470669143.ch8.

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González-Gaitano, G., T. Sanz, R. Gabarró, J. A. Rodríguez-Cheda, M. C. Sáez, and G. Tardajos. "Molar Partial Properties in Host-Guest Systems: Application to the Inclusion Complexes between β- Cyclodextrin and Sodium Alkanoates." In Proceedings of the Ninth International Symposium on Cyclodextrins, 667–70. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4681-4_158.

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Vitale, Rosa Maria, and Pietro Amodeo. "Self-Inclusion Complexes of Monofunctionalized Beta-Cyclodextrins as Host–Guest Interaction Model Systems and Simple and Sensitive Testbeds for Implicit Solvation Methods." In Computational Electrostatics for Biological Applications, 271–96. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-12211-3_14.

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Schneider, Hans-Jörg, Thomas Blatter, Rüdiger Kramer, Surat Kumar, Ulrich Schneider, and Isolde Theis. "Host-Guest Binding Mechanisms: Experimental Approaches [1]." In Inclusion Phenomena and Molecular Recognition, 65–74. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0603-0_7.

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Vinter, J. G., and M. R. Saunders. "Molecular Modelling Approaches to Host-Guest Complexes." In Novartis Foundation Symposia, 249–65. Chichester, UK: John Wiley & Sons, Ltd., 2007. http://dx.doi.org/10.1002/9780470514085.ch16.

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Hilgenfeld, Rolf, and Wolfram Saenger. "Structural Chemistry of Natural and Synthetic Ionophores and their Complexes with Cations." In Host Guest Complex Chemistry / Macrocycles, 43–124. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70108-5_2.

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Dutta, Prabir K. "Zeolite Guest-Host Interactions: Implications in Formation, Catalysis, and Photochemistry." In Topics in Inclusion Science, 215–37. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0119-6_8.

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Conference papers on the topic "Host - guest inclusion complexes"

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Kaneko, Takuma, Hirokazu Takahashi, Kenryo Ohminami, Takehisa Konishi, Masaki Ueda, Shin-ichi Nagamatsu, and Takashi Fujikawa. "Host-Guest Interaction in α-Cyclodextrin Inclusion Complexes." In X-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference. AIP, 2007. http://dx.doi.org/10.1063/1.2644519.

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Hu, Shenshui, Cuiling Xu, Lingzi Meng, Yongbin He, and Dafu Cui. "Electrochemical oxygen sensor based on host-guest inclusion complex of calixarene and methyl viologen." In International Conference on Sensors and Control Techniques (ICSC2000), edited by Desheng Jiang and Anbo Wang. SPIE, 2000. http://dx.doi.org/10.1117/12.385597.

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Vázquez Tato, José, Víctor Soto Tellini, Aida Ramos, Juan Trillo Novo, Francisco Meijide, and Jorge Carrazana G. "Can Guest Hydrophobicity Guide the Entrance into the Host in the Formation of an Inclusion Complex?" In The 8th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2004. http://dx.doi.org/10.3390/ecsoc-8-01996.

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Santa María, Dolores, R. Claramunt, M. García, and M. Farrán. "Molecular Modeling:Prediction of the structure of Host-Guest complexes." In The 14th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2010. http://dx.doi.org/10.3390/ecsoc-14-00407.

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Caira, Mino. "Supramolecular chemistry of cyclodextrins and their inclusion complexes containing bioactive guest compounds." In The 1st International Electronic Conference on Pharmaceutics. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/iecp2020-08915.

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Novo, Mercedes, Jorge Bordello, Daniel Granadero, Sonia Freire, and Wajih Al-Soufi. "Supramolecular host-guest complexes between coumarin 460 and cyclodextrins: a matter of size." In The 12th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2008. http://dx.doi.org/10.3390/ecsoc-12-01267.

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Kweon, G., G. Beadie, and N. M. Lawandy. "Pyroelectric detection of light beams using a phase transition in guest–host compounds." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.mhh7.

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Because of their relative ease of fabrication, β-quinol clath-rates are one of the most studied among non- stoichiometric inclusion compounds. (quinol)3(CH3OH) x with x close to 1 has shown1 spontaneous polarization at a critical temperature near 66 K accompanying induced voltage across the sample. During the phase transition, the enclathrated methanol undergoes a sudden cooperative re-orientation during which the angle between the methanol C–O bond and the crystallographic C-axis changes discontinuously. This produces a large pyroelectric coefficient for high occupancy methanol clathrates, which suggests the possibility for a sensitive bolometer. We report on experiments where a clathrate connected by two electrical leads inside a He Dewar and held just below the transition temperature is exposed to laser radiation. By observing the voltage change, we can detect a wide range of IR and FIR wavelengths by using CO2-pumped superradiated FIR and Nd:YAG lasers. By keeping the sample size and the temperature gap small, the detector can be made very sensitive to incoming radiation.
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8

Weber, J., and Madison Foreman. "MISMATCHED HOST-GUEST PAIRINGS – CRYOGENIC ION SPECTROSCOPY OF OCTAMETHYL-CALIX[4]PYRROLES IN COMPLEXES WITH NITRATE AND FORMATE." In 2023 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2023. http://dx.doi.org/10.15278/isms.2023.6701.

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9

van der Laan, H., C. De Caro, and S. Völker. "Picosecond Energy Transfer in Genetically Modified Photosynthetic Antenna Complexes Studied by Hole-Burning." In Spectral Hole-Burning and Luminescence Line Narrowing: Science and Applications. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/shbl.1992.tua5.

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Information on dynamic guest-host interactions is contained in the homogeneous linewidth Γhom [1]: where T1 represents the population decay time of the excited state, and T2* the pure dephasing time determined by thermally induced fluctuations of the optical transition frequency. The first term includes all de-excitation steps, i.e. direct de-excitation to the ground state and energy transfer processes from the excited state. If energy transfer does not occur, then T2* usually dominates, since T1 ≫ T2*. This is the case for most organic molecules doped in glasses and polymers [1] and some biological model systems at low temperature [2]. By contrast, for many pigment-protein complexes Γhom is principally given by population decay, thus T1 ≪ T2* [3].
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Petrović, Goran, Aleksandra Đorđević, Jelena Stamenković, Violeta Mitić, Jelena Nikolić, Milan Mitić, and Vesna Stankov Jovanović. "INCLUSION COMPLEXES OF PESTICIDES IN HYDROXYPROPYL- β-CYCLODEXTRINE. EFFECTS ON THEIR WATER SOLUBILITY." In 1st International Symposium on Biotechnology. University of Kragujevac, Faculty of Agronomy, 2023. http://dx.doi.org/10.46793/sbt28.265p.

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A set of “host” compounds, highly suluble in water, were prepared by the reaction of β-cyclodextrin with propylene oxide in NaOH solution. The reactant ratio was varied in order to examine the difference in the substitution degree of the obtained derivatives. The structure was determined by the 1H-NMR spectra. The average degree of substitution was determined by integration of the corresponding NMR signals of the methyl group, which is part of the hydroxypropyl group and the signal from the proton attached to anomeric carbon of the β-cyclodextrin. The solubility of four different pesticides, very poorly soluble in water, was measured in water and in aqueous solution of the hydroxypropyl substituted cycloheptaamylose by ultraviolet spectrophotometry. Obtained results showed that the aqueous solution of hydroxypropyl-β- cyclodextrin was powerful solubilizer of investigated pesticides due to formation of stable inclusion complexes.
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