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Nabeshima, Tatsuya, Yusuke Chiba, Takashi Nakamura, and Ryota Matsuoka. "Synthesis and Functions of Oligomeric and Multidentate Dipyrrin Derivatives and their Complexes." Synlett 31, no. 17 (July 24, 2020): 1663–80. http://dx.doi.org/10.1055/s-0040-1707155.
The dipyrrin–metal complexes and especially the boron complex 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) have recently attracted considerable attention because of their interesting properties and possible applications. We have developed two unique and useful ways to extend versatility and usefulness of the dipyrrin complexes. The first one is the linear and macrocyclic oligomerization of the BODIPY units. These arrangements of the B–F moieties of the oligomerized BODIPY units provide sophisticated functions, such as unique recognition ability toward cationic guest, associated with changes in the photophysical properties by utilizing unprecedented interactions between the B–F and a cationic species. The second one is introduction of additional ligating moieties into the dipyrrin skeleton. The multidentate N2Ox dipyrrin ligands thus obtained form a variety of complexes with 13 and 14 group elements, which are difficult to synthesize using the original N2 dipyrrin derivatives. Interestingly, these unique complexes exhibit novel structures, properties, and functions such as guest recognition, stimuli-responsive structural conversion, switching of the optical properties, excellent stability of the neutral radicals, etc. We believe that these multifunctional dipyrrin complexes will advance the basic chemistry of the dipyrrin complexes and develop their applications in the materials and medicinal chemistry fields.1 Introduction2 Linear Oligomers of Boron–Dipyrrin Complexes3 Cyclic Oligomers of Boron–Dipyrrin Complexes4 A Cyclic Oligomer of Zinc–Dipyrrin Complexes5 Group 13 Element Complexes of N2Ox Dipyrrins6 Chiral N2 and N2Ox Dipyrrin Complexes7 Group 14 Element Complexes of N2O2 Dipyrrins8 Other N2O2 Dipyrrin Complexes with Unique Properties and Functions9 Conclusion
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Sethi, Pooja, Rajshree Khare, and Renuka Choudhary. "Complexes of Pyrimidine Thiones: Mechanochemical Synthesis and Biological Evaluation." Asian Journal of Chemistry 32, no. 10 (2020): 2594–600. http://dx.doi.org/10.14233/ajchem.2020.22813.
A new series of metal complexes with 1-(2-methylphenyl)-4,4,6-trimethyl pyrimidine-2-thione (2-HL1) and 1-(4-methylphenyl)-4,4,6-trimethyl pyrimidine-2-thione (4-HL2) ligands, [M(mppt)2(H2O)n] (M(II) = Cu, Mn, Co; n = 2 and M(II) = Ni, Zn; n = 0) have been synthesized using mechanochemical protocol. The complexes have been framed as [M(mppt)2(H2O)n] due to 1:2 (metal:ligand) nature of these metal complexs. Structures have been further confirmed on the basis of elemental analysis, Magnetic susceptibility measurements, electronic, infrared, far infrared, proton NMR, Mass spectral moment and thermogravimetric analysis studies. The infrared spectral data suggested that ligand behaves as a bidentate, coordinating through – N (endocyclic) and – S (exocyclic) donor atoms. All the compounds have also been screened for antibacterial and DNA photocleavage potential. Ligands complexed with Mn and Ni metals have shown the effect of substitution on their biological potentials. It was found that substitution at 4th or para position makes the ligand and its metal complexes have better antibacterial and DNA photocleaving agents.
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Prema. S, Prema S., and Leema Rose. A. "Metal Complexes of Phenyl Glycine-O-Carboxylic Acid: Preparation, Characterization, Electrochemical and Biological Properties." Oriental Journal Of Chemistry 38, no. 3 (June 30, 2022): 698–708. http://dx.doi.org/10.13005/ojc/380321.
Metal complexes are the effective therapeutic compound and it became more emerging field in the drug discovery and delivery. A novel ligand phenyl-glycine -o- carboxylic acid was synthesized and further complexed with the metal (II) chlorides. The synthesized metal complexes was interpreted by FT-IR spectroscopy, Ultra Violet- visible, 1H-NMR, molar conductance, magnetic susceptibility and thermogravimetric study. The electrochemical properties of the ligand and its complexes were inquired in DMF. Antibacterial and fungal activities of the phenyl-glycine -o- carboxylic acid (ligand) and metal complexes were analyzed by three fungal and four bacteria pathogens. The ligand has no activity against Aspergillus terreus, but nickel, copper and cobalt chloride complexes showed good activity against Aspergillus terreus. On anti-bacterial activity compare to ligands and other metal (II) complexes the cobalt (II) complex revealed greater inhibition effect on selected bacteria.
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Irfandi, Rizal, Indah Raya, Ahyar Ahmad, Ahmad Fudholi, Hasnah Natsir, Desy Kartina, Harningsih Karim, Santi Santi, and Subakir Salnus. "Review on Anticancer Activity of Essential Metal Dithiocarbamate Complexes." Indonesian Journal of Chemistry 22, no. 6 (August 8, 2022): 1722. http://dx.doi.org/10.22146/ijc.73738.
The importance of essential metal ions and their metal complexes in the creation of prospective medical therapies has long been recognized. In chemistry, molecular biology, and medicinal fields; the interaction of metal complexes with DNA has been a subject of study. The dithiocarbamate essential metal complex is described extensively in the literature for its various benefits and advantages. With proper use of ligands, it is proven to increase the cytotoxic activity of metal complexes against cancer cells. Some researches have shown significant progress regarding the biological activities of the dithiocarbamate essential metal complex as antimicrobial, antioxidant, and anticancer agents. Metal complexes form complexes with dithiocarbamate ligands with unique structural variations. In this study, we presented an overview of the cytotoxic effects of some dithiocarbamate essential metal complexes on cancer cells, as well as fresh approaches to the design of essential metal-based therapeutics containing dithiocarbamate and molecular targets in cancer therapy. This review may provide an update on recent developments in the medicinal use of essential metals with dithiocarbamate ligands, carried out to identify recent relevant literature. Finally, we predict that the essential metal complexed with dithiocarbamate can be a new breakthrough in the future development of cancer drugs.
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Sumrra, Sajjad Hussain, Muhammad Ibrahim, Sabahat Ambreen, Muhammad Imran, Muhammad Danish, and Fouzia Sultana Rehmani. "Synthesis, Spectral Characterization, and Biological Evaluation of Transition Metal Complexes of Bidentate N, O Donor Schiff Bases." Bioinorganic Chemistry and Applications 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/812924.
New series of three bidentate N, O donor type Schiff bases(L1)–(L3)were prepared by using ethylene-1,2-diamine with 5-methyl furfural, 2-anisaldehyde, and 2-hydroxybenzaldehyde in an equimolar ratio. These ligands were further complexed with Co(II), Cu(II), Ni(II), and Zn(II) metals to produce their new metal complexes having an octahedral geometry. These compounds were characterized on the basis of their physical, spectral, and analytical data. Elemental analysis and spectral data of the uncomplexed ligands and their metal(II) complexes were found to be in good agreement with their structures, indicating high purity of all the compounds. All ligands and their metal complexes were screened for antimicrobial activity. The results of antimicrobial activity indicated that metal complexes have significantly higher activity than corresponding ligands. This higher activity might be due to chelation process which reduces the polarity of metal ion by coordinating with ligands.
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NOMURA, Mitsushiro, Satoshi HORIKOSHI, and Masatsugu KAJITANI. "Metal Dithiolene Complexes." Journal of the Japan Society of Colour Material 82, no. 7 (2009): 296–305. http://dx.doi.org/10.4011/shikizai.82.296.
Trachevskii, V. V., S. V. Zimina, and E. P. Rodina. "Thiosulfate metal complexes." Russian Journal of Coordination Chemistry 34, no. 9 (September 2008): 664–69. http://dx.doi.org/10.1134/s1070328408090066.
The initial events (virus adsorption and fusion with the cells) in the replicative cycle of human immunodeficiency virus (HIV) can serve as targets for the antiviral action of metal-binding compounds such as polyanionic compounds (polysulfates, polysulfonates, polycarboxylates, polyoxometalates, and sulfonated or carboxylated metalloporphyrins), bicyclams and G-octet-forming oligonucleotides. The adsorption and fusion of HIV with its target cells depends on the interaction of the viral envelope glycoproteins (gp 120) with the receptors (CD4, CXCR4) at the outer cell membrane. We are currently investigating how the aforementioned compounds interfere with these viral glycoproteins and/or cell receptor.
Vrieze, K., and G. Van Koten. "Metal heterodiene complexes." Inorganica Chimica Acta 100, no. 1 (May 1985): 79–96. http://dx.doi.org/10.1016/s0020-1693(00)88296-1.
Dissertations / Theses on the topic "Metal complexes":
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Brayshaw, Simon Keith. "Metal complexes bearing pendant alkynes and metal complexes of N-heterocyclic carbenes." University of Western Australia. School of Biomedical and Chemical Sciences, 2004. http://theses.library.uwa.edu.au/adt-WU2005.0017.
This thesis is comprised of two parts. The first part describes the synthesis of cyclopentadienyltungsten complexes containing a pendant alkyne group (I), and the subsequent photo-induced intramolecular coordination of the alkyne, forming complexes such as II. Compounds containing intramolecularly coordinated alkynes are rare, and this is the first example using cyclopentadiene as the core ligand. The second part describes the synthesis and structural characterisation of a number of novel metal complexes containing N-heterocyclic carbene ligands, some containing particular functionality for taylored applications. New methods were used to form complexes of rhodium, iridium, silver and gold (eg. III, IV). Structural and spectroscopic properties of the complexes were correlated with electronic characteristics of the ancillary ligands. A number of rhodium and iridium complexes (eg. IV) derived from imidazolium-linked cyclophanes were synthesised and structurally characterised. Complexes of N-heterocyclic carbenes with pendant ionic groups were synthesised, and a preliminary examination of their catalytic activity in water was performed. N-Heterocyclic carbenes complexes containing an electron withdrawing nitro group were synthesised and the effect of the nitro group on metal-ligand bonding was examined.
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Barron, Andrew Ross. "Transition metal aluminohydride complexes." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/37935.
Alem, Nassreen. "Zeolite encapsulated metal complexes." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239055.
Jasim, Naseralla. "Transition metal bifluoride complexes." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323538.
Ho, Kin-ying. "Synthesis, characterization and spectroscopic properties of d6 and d10 metal complexes with pyridyl amine ligands /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20667905.
Jones, Simon C. "Metal-metal coupling in bi- and multimetallic systems : organometallic pentalene and group 14-bridged cyclopentadienyl complexes of transition metals." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270635.
Humphrey, Elizabeth Rebecca. "Tris(pyrazolyl)borate metal complexes : new ligands and metal-metal interactions." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340301.
Zhao, Ningfeng Eichhorn David M. "Cyano-substituted polypyrazolylborate metal complexes." Diss., Click here for available full-text of this thesis, 2005. http://library.wichita.edu/digitallibrary/etd/2005/d019.pdf.
Thesis (Ph.D.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Chemistry. "December 2005." Title from PDF title page (viewed on February 8, 2007). Thesis adviser: David Eichhorn. Includes bibliographic references (leaves 123-128).
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Rao, Sumitrananda N. R. "Novel adsorbents using metal complexes." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/10200.
Sludges formed by lime treatment of acidic mine effluents are a widespread environmental hazard. One treatment option is to recover the toxic and potentially valuable contained metals. A method has been reported to selectively recover the metals by leaching with a complexing agent, diethylenetriamine (DETA). In this thesis a novel method has been developed to recover metals from the metal---DETA complexes by direct electrowinning. Copper was studied initially as a test system due to the relative ease with which it is recovered in conventional sulphate electrowinning. The main industrial interest, and hence the main focus of the work, is in the nickel---DETA system. For both metals, initially batch tests were run to determine acceptable electrowinning conditions. These were followed by recycle tests to simulate a potential process flowsheet. In the nickel-DETA system the effects of pH, nickel concentration, temperature, and DETA to nickel ratio on current efficiency were determined. Recycle tests for copper showed that a steady DETA concentration was achieved after ca. six hours. In the case of nickel, the system seemed to continually deteriorate. A pH range of 4.6 to 4.8 maximized the current efficiency, due to a competition between hydrogen formation at low pH and increased complex stability at high pH. Both increasing Ni concentration and temperature increased the current efficiency, while increasing the DETA to nickel ratio lowered it.
Voloshin, Yan, Irina Belaya, and Roland Krämer. Cage Metal Complexes. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56420-3.
Ciardelli, F., E. Tsuchida, and D. Wöhrle, eds. Macromolecule-Metal Complexes. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-60986-2.
Farrell, Nicholas. "Metals, Metal Complexes, and Radiation." In Transition Metal Complexes as Drugs and Chemotherapeutic Agents, 183–207. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-011-7568-5_9.
Chaloner, Penny A., Miguel A. Esteruelas, Ferenc Joó, and Luis A. Oro. "Supported Metal Complexes." In Catalysis by Metal Complexes, 241–53. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-1791-5_6.
Markó, L., J. Takács, Kenton H. Whitmire, B. A. Matrana, and H. D. Kaesz. "Trinuclear Metal Complexes." In Inorganic Syntheses, 243–46. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132579.ch42.
Govindrajan, Subbiah, and Singanahally T. Aruna. "Hydrazinium Metal Complexes." In Inorganic Hydrazine Derivatives, 171–218. Chichester, United Kingdom: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118693599.ch05.
Ingraham, Llyod L., and Damon L. Meyer. "Metal-Dioxygen Complexes." In Biochemistry of Dioxygen, 113–20. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2475-1_8.
Hoffman, M. Z. "Of Metal Complexes." In Inorganic Reactions and Methods, 276–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145302.ch110.
Gates, B. C. "Supported Metal Complexes." In Inorganic Reactions and Methods, 36–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145319.ch18.
Wani, Mohmmad Younus, and Manzoor Ahmad Malik. "Anticancer Metal Complexes." In Gold and its Complexes in Anticancer Chemotherapy, 35–39. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6314-4_4.
Mishra, Munmaya, and Biao Duan. "Polymer Metal Complexes." In The Essential Handbook of Polymer Terms and Attributes, 168–69. Boca Raton: CRC Press, 2024. http://dx.doi.org/10.1201/9781003161318-164.
Brewer, Karen J., Shawn Swavey, Rodd L. Williams, Zhenglai Fang, and Elizabeth R. Bullock. "Designing mixed-metal supramolecular complexes." In Complex Adaptive Structures, edited by William B. Spillman, Jr. SPIE, 2001. http://dx.doi.org/10.1117/12.446777.
Lee, Taewoo, Christian Reich, Christopher M. Laperle, Xiaodi Li, Margaret Grant, Christoph G. Rose-Petruck, and Frank Benesch-Lee. "Ultrafast XAFS of transition metal complexes." In International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/up.2006.wd4.
Fukaya, Toshio, Masagi Mizuno, Shigeo Murata, and Akihiro Mito. "THG properties of metal-dithiolene complexes." In OE/LASE '92, edited by Robert A. Fisher and John F. Reintjes. SPIE, 1992. http://dx.doi.org/10.1117/12.58089.
Hulubei, C., E. Hamciuc, M. Bruma, and M. Ignat. "Polymer blends containing maleimide-metal complexes." In 2008 International Semiconductor Conference. IEEE, 2008. http://dx.doi.org/10.1109/smicnd.2008.4703401.
Al-Khaykanee, Mohsin K., Faeq A. Al-Temimei, A. A. Al-Jobory, Dhay Ali Sabur, and Hamid I. Abbood. "Thermoelectric properties of platinum metal complexes." In THE 7TH INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST 2019). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5123090.
MOISEEV, ILYA I. "METAL COMPLEX CATALYSIS OF OXIDATION REACTIONS: CATALYSIS WITH PALLADIUM COMPLEXES." In Proceedings of the NIOK (Netherlands Institute for Catalysis Research) Course on Catalytic Oxidation. WORLD SCIENTIFIC, 1995. http://dx.doi.org/10.1142/9789814503884_0010.
Swavey, Shawn, Rodd L. Williams, Zhenglai Fang, Matthew Milkevitch, and Karen J. Brewer. "DNA binding of supramolecular mixed-metal complexes." In Complex Adaptive Structures, edited by William B. Spillman, Jr. SPIE, 2001. http://dx.doi.org/10.1117/12.446779.
Slinker, Jason, Dan Bernards, Samuel Flores-Torres, Stefan Bernhard, Paul L. Houston, Héctor D. Abruña, and George G. Malliaras. "Light emitting diodes from transition metal complexes." In Frontiers in Optics. Washington, D.C.: OSA, 2003. http://dx.doi.org/10.1364/fio.2003.wnn2.
Latouche, Camille, Vincenzo Barone, and Julien Bloino. "ANHARMONIC VIBRATIONAL SPECTROSCOPY ON METAL TRANSITION COMPLEXES." In 69th International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2014. http://dx.doi.org/10.15278/isms.2014.rc08.
White, Carter James. Selenophene transition metal complexes. Office of Scientific and Technical Information (OSTI), July 1994. http://dx.doi.org/10.2172/10190649.
Cotton, F. A., and S. C. Haefner. Metal-metal multiply bonded complexes of technetium. Final report. Office of Scientific and Technical Information (OSTI), March 1995. http://dx.doi.org/10.2172/434856.
Lawson, Chris M., and Gary M. Gray. New Metal Organic Nonlinear Optical Complexes. Fort Belvoir, VA: Defense Technical Information Center, December 2000. http://dx.doi.org/10.21236/ada391105.
Sharp, P. R. Late transition metal oxo and imido complexes. Office of Scientific and Technical Information (OSTI), December 1992. http://dx.doi.org/10.2172/7017245.
Fujita, Etsuko. Photoreduction of CO{sub 2} using metal complexes. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/211478.
Crosby, G. A. Investigations of charge-separation processes in metal complexes. Office of Scientific and Technical Information (OSTI), February 1991. http://dx.doi.org/10.2172/5943145.
Theopold, K. H. [Oxidation catalysis with tris(pyrazolyl)borate metal complexes]. Office of Scientific and Technical Information (OSTI), January 1993. http://dx.doi.org/10.2172/6487292.
Du, Guodong. Group 4 Metalloporphyrin diolato Complexes and Catalytic Application of Metalloporphyrins and Related Transition Metal Complexes. Office of Scientific and Technical Information (OSTI), January 2003. http://dx.doi.org/10.2172/835301.
Sharp, P. R. Late transition metal. mu. -oxo and. mu. -imido complexes. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6332549.
Rubin, Yves F. Total Synthesis of Buckminsterfullerene (C60) and Endohedral Metal Complexes. Fort Belvoir, VA: Defense Technical Information Center, August 1997. http://dx.doi.org/10.21236/ada328578.
