124268-98-0Relevant academic research and scientific papers
Tin(II) halide insertion or halogen exchange in the reactions of dihaloplatinum(II) complexes with tin(II) halide
Momeni, Badri Z.,Kazmi, Hoori,Najafi, Atefeh
, p. 1618 - 1627 (2011/10/31)
Reactions of SnCl2 with the complexes cis-[PtCl 2(P2)] (P2=dppf (1,1′- bis(diphenylphosphino)ferrocene), dppp (1,3-bis(diphenylphosphino)propane=1, 1′-(propane-1,3-diyl)bis[1,1-diphenylphosphine]), dppb (1,4-bis(diphenylphosphino)butane=1,1′-(butane-1,4-diyl)bis[1, 1-diphenylphosphine]), and dpppe (1,5-bis(diphenylphosphino)pentane=1,1′- (pentane-1,5-diyl)bis[1,1-diphenylphosphine])) resulted in the insertion of SnCl2 into the Pt-Cl bond to afford the cis-[PtCl(SnCl 3)(P2)] complexes. However, the reaction of the complexes cis-[PtCl2(P2)] (P2=dppf, dppm (bis(diphenylphosphino)methane=1,1′-methylenebis[1,1-diphenylphosphine]), dppe (1,2-bis(diphenylphosphino)ethane=1,1′-(ethane-1,2-diyl)bis[1,1- diphenylphosphine]), dppp, dppb, and dpppe; P=Ph3P and (MeO) 3P) with SnX2 (X=Br or I) resulted in the halogen exchange to yield the complexes [PtX2(P2)]. In contrast, treatment of cis-[PtBr2(dppm)] with SnBr2 resulted in the insertion of SnBr2 into the Pt-Br bond to form cis-[Pt(SnBr3) 2(dppm)], and this product was in equilibrium with the starting complex cis-[PtBr2(dppm)]. Moreover, the reaction of cis-[PtCl 2(dppb)] with a mixture SnCl2/SnI2 in a 2 : 1 mol ratio resulted in the formation of cis-[PtI2(dppb)] as a consequence of the selective halogen-exchange reaction. 31P-NMR Data for all complexes are reported, and a correlation between the chemical shifts and the coupling constants was established for mono- and bis(trichlorostannyl) platinum complexes. The effect of the alkane chain length of the ligand and SnII halide is described. Copyright
Unusual Coordination Assemblies from Platinum(II) Thienyl and Bithienyl Complexes
Teo, Peili,Koh,Hor, T. S. Andy
, p. 7290 - 7296 (2008/10/08)
Dinuclear Pt2Br2(dppf)2(μ-C BH4S2) exchanges with isonicotinic acid to release free bithiophene and gives a molecular square [Pt4(dppf) 4(μ2-O2CC5H4N) 4]4+4OTf- which is an all-ring system with four Pt rings disposed at the corners of a larger macrocyclic ring. The related mononuclear complex PtBr(η1(C2)-C4H 3S)(dppf) reacts with AgOTf (OTf = triflate) to give [Pt 2(dppf)2(μ2,η1(C),η 1(S)-C4H3S)2]2+2OTf - with an unusual six-membered ring formed by the fusion of two Pt-thienyl entities at the sulfur sites. All the complexes are structurally characterized by single-crystal X-ray crystallography.
