143607-32-3Relevant articles and documents
Method for Preparing Transition Metal Complex
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Paragraph 0064, (2020/09/30)
The present invention provides a method for preparing a transition metal complex, including a step of preparing a dispersion including a transition metal salt or alkoxide, and a coordinating solvent; and a step of reacting an organic borate-based compound
In vitro biological, catalytic, and DFT studies of some iron(III) N-ligated complexes
Hijazi, Ahmed K.,Taha, Ziyad A.,Ababneh, Taher S.,Alshare, Heba M.,Al-Bataineh, Nezar,Al-Momani, Waleed M.,Ajlouni, Abdulaziz M.
, p. 1561 - 1572 (2019/12/02)
Fe(III) complexes, [Fe(CH3CN)6][X]3 and [Fe(CH3CH2CN)6][X]3 (where X: counter anion = B{C6H3(m-CF3)2}4)? and B(C
Ethylene sensing by silver(I) salt-impregnated luminescent films
Santiago Cintron, Michael,Green, Omar,Burstyn, Judith N.
, p. 2737 - 2746 (2012/04/23)
Luminescent oligomers and polymers doped with silver(I) salts were used as optical sensors for ethylene and other gaseous small molecules. Films of poly(vinylphenylketone) (PVPK) or 1,4-bis(methylstyryl)benzene (BMSB) impregnated with AgBF4, AgSbF6, or AgB(C6F 5)4 respond to ethylene exposures with a reversible emission quenching that is proportional to the pressure of the gas. Experiments with various analytes revealed that only gases capable of forming coordinate bonds with Ag(I) ions (i.e., ethylene, propylene, and ammonia) produced a sensing response. Comparison of the effects of ethylene and tetradeuterioethylene revealed that the emission quenching was due to enhanced vibrational relaxation. The Ag(I) ions are essential to the observed optical response. The oligomer/polymer support enhances the response characteristics of the impregnated salt by promoting separation of Ag(I) from its anion, a separation that improves accessibility of the Ag(I) ion to the gaseous analytes. Salts with large lattice energies, where the anion is not dissociated from Ag(I) in the matrix, fail to sensitize film responses. Photoluminescence experiments with Ag(I)-impregnated BMSB films established that the Ag(I) ions serve to communicate the analyte-binding signal to the support by altering the support-based emission. These experiments demonstrate a sensing paradigm where simultaneous coordination of Ag(I) ions to the support matrix and to a gaseous analyte enables the optical response.
Synthesis of pentafluorophenyl silver by means of lewis acid catalysis: Structure of silver solvent complexes
Kuprat, Marcus,Lehmann, Mathias,Schulz, Axel,Villinger, Alexander
, p. 1421 - 1427 (2010/05/01)
The synthesis and structure of lithium, and silver tetrakis(pentafluorophenyl)borate salts have been studied in different solvents ranging from polar (CH2Cl2, diethyl ether) to nonpolar (toluene, pentane). While Li[B(C6F5)4]is stable in all studied, solvents and crystallizes with four ether molecules from ether and with two toluene molecules from toluene, the silver salt, is only stable when the Ag+ ion is strongly coordinated such as in [Ag(toluene) 3][B(C6F5)4] or [Ag(Et 2O)3][B(C6F5)4]. Li weakly coordinating solvents such as CH2Cl2 Ag[B(C 6F5)4] decomposes, yielding AgC 6F5 and B(C6F5)3. The overall process of the AgC6F5 synthesis starting from B(C6F5)3 and LiC6F5 can formally be regarded as a B(C6F5)3-catalyzed reaction. The salt [Ag(toluene)3][B(C6F5)4] presents an easily accessible, ether-free, stable silver salt of the [B(C 6F5)4]-anion. All compounds have been fully characterized.
Facile oxidation-based synthesis of sterically encumbered four-coordinate bis(2,9-di-tert-butyl-1,10-phenanthroline)copper(I) and related three-coordinate copper(I) complexes
Gandhi, Bhavesh A.,Green, Omar,Burstyn, Judith N.
, p. 3816 - 3825 (2008/10/09)
A new oxidation-based synthetic route was developed for synthesis of Cu(I) complexes with weakly coordinating ligands, leading to the synthesis of the elusive [Cu(dtbp)2]+ (dtbp, 2,9-di-tert-butyl-1,10- phenanthroline) complex that may be useful as a sensor or as a dye for dye-sensitized solar cells. An acetone solution of either 1 or 2 equiv of dtbp was added to excess Cu(0) and 1 equiv of AgY (Y is O3SCF 3-, BF4-, SbFe6 -, or B(C6F5)4-) in a nitrogen-filled glove box. Following filtration and evaporation under vacuum, crystallization from CH2Cl2 and hexanes results in X-ray quality crystals of Cu(dtbp)(O3SCF3) (1), Cu(dtbp)(BF 4) (2), [Cu(dtbp)(acetone)][SbF6] (3), [Cu(dtbp) 2]-[B(C6F5)4]·CH 2Cl2 (4·CH2Cl2), [Cu(dtbp)2][BF4]·CH2Cl2 (5·CH2Cl2), and [Cu(dtbp)2][SbF 6]·CH2Cl2 (6·CH 2Cl2). Complexes 1-6 were characterized by X-ray crystallography and NMR. The Cu atom in complexes 1-3 exhibited distorted trigonal coordination geometries, reflecting the steric effect of the bulky tert-butyl substituents. The structures of the pseudotetrahedral complexes 4, 4·CH2Cl2, 5·CH2Cl2, and 6·CH2Cl2 revealed the longest average Cu-N distances (2.11 A, 2.11 A, 2.10 A, and 2.11 A, respectively) in this class of compounds-longer by more than three standard deviations from the average.
Organonitrile ligated silver complexes with perfluorinated weakly coordinating anions and their catalytic application for coupling reactions
Zhang, Yanmei,Santos, Ana M.,Herdtweck, Eberhardt,Mink, Janos,Kuehn, Fritz E.
, p. 366 - 370 (2007/10/03)
Homogeneous catalytic processes mediated by silver(I) complexes are relatively rare. This work describes the synthesis and characterization of acetonitrile ligated silver salts with three weakly coordinating anions [B(C6F5)4]- [B{C6H 3(CF3)2}4]- and [(C 6F5)3B-C3H4N 2-B(C6F5)3]-. The silver cation is coordinated either by four or by two acetonitrile ligands. All examined Ag(I) complexes show catalytic activity in coupling reactions of terminal alkynes with aldehydes and amines. The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2005.
