Oxidative access to flexible {Pt2(μ-SAr)2} square motifs from platinum thiolato complexes with chelating diphosphine
摘要:
Platinum(II) aryl thiolate complexes formulated as (P2)Pt(SAr)(2) are prepared from the chelating bis(diphenylphosphino) dimethyltetrathiafulvalene (P2), with aryl thiolate ligands (SAr), such as benzene-thiolate (BT) and 3,5-dimethylbenzenethiolate (DMBT). The structurally characterized neutral (P2) Pt(SAr)(2) complexes afford, upon oxidation with TCNQF(4), dicationic bimetallic Pt(II) complexes formulated as [(P2)Pt(mu-SAr)(2)Pt(P-2)](2+), characterized by a flexible {Pt-2(mu-SAr)(2)} square motif. The magnetic properties of the TCNQF(4)(-) salts of these bimetallic Pt(II) complexes are determined from susceptibility measurements and a tentative rationale for the formation of such {Pt-2(mu-SAr)(2)} square complexes are provided, based on an original oxidative dimerization process. (C) 2012 Elsevier B. V. All rights reserved.
Catalytic transformations of diazo compounds promoted by platinum(0) and dicationic platinum(II) complexes
作者:Roberta Bertani、Monica Biasiolo、Katia Darini、Rino A Michelin、Mirto Mozzon、Fabiano Visentin、Livio Zanotto
DOI:10.1016/s0022-328x(01)01082-8
日期:2002.1
9-Diazofluorene (DAF) is decomposed either stoichiometrically or catalytically in the presence of the platinum(0) complex [Pt(C2H4)(PPh3)2] to give difluoren-9-ylidene-hydrazine in high yield. Under analogous reaction conditions, diphenyldiazomethane gives mostly the azine, Ph2CNNCPh2, while ethyl diazoacetate (EDA) affords, in low yield, a mixture of diethyl fumarate and maleate in approximately
Syntheses, Spectra, and Structures of (Diphosphine)platinum(II) Carbonate Complexes
作者:Mark A. Andrews、George L. Gould、Wim T. Klooster、Kristina S. Koenig、Eric J. Voss
DOI:10.1021/ic9603159
日期:1996.1.1
A variety of (diphosphine)platinum(II) carbonate complexes, (LL)Pt(CO(3)), are readily prepared from the corresponding (diphosphine)platinum dichlorides by treatment with silver carbonate in dichoromethane solution provided that water is present. This reaction also permits facile preparation of analogous (13)C-labeled complexes. The carbonate ligands in these complexes have been characterized by IR
Reactions of anions [(μ-PhSe)(μ-CO)Fe2(CO)6]− and {[μ-SeZSe-μ][(μ-CO)Fe2(CO)6]2}2− with various electrophiles to give the corresponding new linear and macrocyclic cluster complexes
作者:Li-Cheng Song、Wen-Bo Liu、Ling Li、Xi-Yue Yang
DOI:10.1016/j.jorganchem.2020.121217
日期:2020.5
[μ-Se(CH2)4Se-μ][(μ-R)Fe2(CO)6]2 (4–6, R = PhCH2SC=S; PhNHC = S; PhC = NC6H4Me-p). More interestingly, the third and fourth types of complexes include the macrocyclic type of (diphosphine)Pt-bridged double-butterfly Fe/E clusters [μ-Se(CH2)3Se(CH2)3Se-μ][(μ-S=CS)Fe2(CO)6]2[Pt(diphosphine)] and the macrocyclic type of quadruple-butterfly Fe/E clusters [μ-Se(CH2)3Se-μ][(μ-S=CS)Fe2(CO)6]2}2[Pt(diphosphine)]2 (7a,b−8a
Co-ordination chemistry of higher oxidation states. Part 2. Neutral and cationic complexes of platinum(IV) with bi- and multi-dentate ligands
作者:David J. Gulliver、William Levason、Kenneth G. Smith
DOI:10.1039/dt9810002153
日期:——
Several unstable [Pt(L–L)l4] complexes have been prepared, which lose iodine very easily and are partially dissociated in solution. Chlorine oxidation of [Pt(L′–L′)2Cl2][L′–L′=o-C6H4(AsMe2)2, Me2PCH2CH2PMe2, or o-C6H4(PMe2)(AsMe2)] produced trans-[Pt(L′–L′)2Cl2]Cl2, but for L′–L′=o-C6H4(AsPh2)2 or cis-Ph2AsCHCHAsPh2 the product was [Pt(L′–L′)Cl4] and oxidised ligand. The complex [Pt(Ph2PCH2CH2PPh2)2Cl2]
Nickel(II), palladium(II), and platinum(II) complexes containing cis- or trans-1,2-bis(diphenylphosphino)ethene: isomorphous crystal structures in the cyanide case
approaches leading to small deviations from coplanarity. The removal of one coordinated chloride in [NiCl2(cis-dppen)] by AgBF4 followed by subsequent treatment with bis(diphenylphosphino)amine, NH(PPh2)2 (dppam), leads to the novel complex [NiCl(cis-dppen) (dppam)](BF4) (4). However, the analogous abstraction of both chlorides in [MCl2(cis-dppen)] (M Pd, Pt) and reaction with dppam produces [M(cis-dppen)(dppam)](BF4)2