63640-04-0Relevant articles and documents
Synthesis and structural studies of some gold(I) complexes containing selenoureato ligands
Molter, Anja,Mohr, Fabian,Rust, Joerg,Lehmann, Christian W.
, p. 10586 - 10591,6 (2012/12/12)
N,N-Diethyl-N′-4-nitrobenzoylselenourea (HLSe) reacts with the mono- and dinuclear phosphine gold(I) chloro complexes [AuCl(PR 3)] (R=Ph, o-tol, Et) and [Au2Cl2(μ-P-P)] (P-P=dppm, dppe, dppp, dppb, dppf) in the presence of base to give gold(I) phosphine selenoureato complexes [Au(LSe)(PR3)] [R=Ph (1), o-tol (2), Et (3)], [Au2(LSe)2(μ-P-P)] [P-P=dppm (4), dppe (5), dppp (6), dppb (7), dppf (8)] in excellent yields. The compounds were fully characterised by spectroscopic methods and, in the case of compounds 1, 5 and 8, by single crystal X-ray diffraction. The compounds consist of a gold atom bound in linear fashion to the phosphine ligand and the selenium atom from the deprotonated acylselenourea. These complexes thus represent the first examples of acylselenoureato metal compounds in which the ligands do not adopt the typical O,Se chelating mode but rather coordinate to the metal only through the selenium atom.
Polymeric and macrocyclic gold(I) complexes with bridging dithiolate and diphosphine ligands
Hunks, William J.,Jennings, Michael C.,Puddephatt, Richard J.
, p. 3605 - 3616 (2008/10/09)
The reaction of digold(I) diphosphine complexes [Au2(O2CCF3)2(μ-Ph2P-X -PPh2)] with dithiols HS-Y-SH can give either macrocyclic complexes [Au2(μ-S-Y-S)(μ-Ph2P-X-PPh2)] or polymeric complexes [Au2(μ-S-Y-S)(μ-Ph2P-X-PPh2)] n. The structures of the macrocyclic complex [Au2{μ-(S-4-C6H4)2S}{μ -Ph2P(CH2)4PPh2}], and the polymeric complexes [Aun{μ-(S-CH2CO2CH2CH 2O)2-1,4-C6H4}n(μ- trans-Ph2PCH{double bond, long}CHPPh2)n] and [Aun{μ-(S-CH2CO2CH2CH 2O)2-1,5-C10H6}n(μ -trans-Ph2PCH{double bond, long}CHPPh2)n] have been determined. Evidence is presented that the complexes exist primarily as macrocycles in solution and that, in favorable cases, ring-opening polymerization occurs during crystallization.
Dinuclear Gold(I) Chloride Complexes of 1,4-Bis(diphenylphosphinyl)butane and 1,5-Bis(diphenylphosphinyl)pentane: A Conformational Study
Schmidbaur, H.,Bissinger, P.,Lachmann, J.,Steigelmann, O.
, p. 1711 - 1716 (2007/10/02)
digold dichloride 1 and digold dichloride 2 have been prepared from R2SAuCl (R = CH2CH2OH) and the corresponding bidentate phosphines Ph2P(CH2)nPPh2 (n = 4 or 5) in good yields.The structures of the compounds have been determined by single crystal X-ray diffraction (1*CH2Cl2: space group P, Z = 2; 2*0.5 CH2Cl2: space group C2/c, Z = 8).While the monomers (AuCl)2 are associated through intermolecular Au Au contacts (3.323 Angstroem) to form a chain-like structure, the crystal lattice of 1*CH2Cl2 features independent (AuCl)2 molecules which show no intra- or intermolecular Au Au interactions.This exceptional behaviour can be rationalized on the basis of efficient packing of solvent molecules and molecules 1 with a particularly favourable conformation, which cannot be altered by weak Au(d10)-Au(d10) interactions. Key words: Auriophilicity, Gold(I) Complexes, Bidentate Phosphines, X-Ray
