191589-45-4Relevant academic research and scientific papers
Complexation of [ω-diphenylphosphinoalkyl]diphenylphosphine sulphides with AgNO3
Matrosov, Eugenii I.,Starikova, Zoya A.,Yanovsky, Aleksandr I.,Lobanov, Dmitrii I.,Aladzheva, Inga M.,Bykhovskaya, Olga V.,Struchkov, Yuri T.,Mastryukova, Tatyana A.,Kabachnik, Martin I.
, p. 121 - 127 (2007/10/03)
By reaction of [ωdiphenylphosphinoalkyl]diphenylphosphine sulphides Ph2P(CH2)nP(S)Ph2 (n = 2-4) (L1-L3) with AgNO3 in CH3CN crystalline complexes with the composition metal:ligand 1:1 [Ag(L1)NO3, Ag(L2)NO3, Ag(L3)NO3] and 1:2 [Ag(L1)2NO3, Ag(L3)2NO3] were isolated. According to the X-ray analysis data, the crystals of Ag(L1)NO3 are constructed from centrosymmetric dimeric molecules based on the 12-membered macrocycle AgSPCH2CH2PAgSPCH2CH2P. Each of the neutral ligands L1 is a bridge between two silver ions and each of the silver ions is coordinated by a chelating NO3 group. According to the IR spectra, the other 1:1 complexes also have an analogous structure. In the 1:2 complexes the coordinated NO3, groups of the 1:1 complexes are replaced by the phosphine sulphide ligand. The downfield shifts of the signals of PIII and Pv atoms in 31P NMR spectra of 1:2 complexes in comparison with the free ligands L1 and L3 reflect a participation of the PIII atom and P=S group in complex formation.
