115419-47-1Relevant articles and documents
Investigating intermolecular bonding in diphenylbismuth(III) chalcogenolates: X-ray crystal structures of (Ph2BiSR′) (R′ = Ph; 2,6-Me2C6H3)
Briand, Glen G.,Decken, Andreas,Hunter, Nicole M.,Lee, Graham M.,Melanson, Jennifer A.,Owen, Evan M.
, p. 796 - 800 (2012/03/12)
The reaction of Ph2BiCl with (PhS)Li or (2,6-Me 2C6H3S)Li yielded [Ph2BiSPh] ∞ (7) or Ph2BiS(2,6-Me2C 6H3)] (8), respectively. Both compounds have been characterized by elemental analysis, melting point, FT-IR, FT-Raman, solution 1H and 13C{1H} NMR, and X-ray crystallography. The solid-state structure of 7 is polymeric via long intermolecular Bi...S interactions and μ-SPh groups, yielding a distorted ψ-trigonal bipyramidal C2S2 bonding environment for bismuth. Increasing steric bulk at the phenyl thiolate ligand in 8 results in the isolation of a monomeric species, which exhibits a distorted ψ-tetrahedral C2S bonding environment for bismuth. Comparison to previously reported structures of diorganobismuth chalcogenolates shows the effect of altering the chalcogen on intermolecular Bi...E (E = O, S, Se) bond formation. DFT calculations are employed to rationalize the bonding environments at bismuth and the observed polymeric structures. This work represents the first examples of structurally characterized R2BiSR′ species and advances our understanding of intermolecular bonding in bismuth chalcogenolates.
Reactivity of molecules containing element-element bonds. 1. Nontransition elements
Calderazzo, Fausto,Morvillo, Antonino,Pelizzi, Giancarlo,Poli, Rinaldo,Ungari, Fausto
, p. 3730 - 3733 (2008/10/08)
A new method for preparing Bi2Ph4 consists of reducing BiPh2I with bis(cyclopentadienyl)cobalt(II) in tetrahydrofuran as solvent, with yields as high as 80%. The mixed products Ph2BiEPh (E = S, Se, Te) were obtained by reacting Bi2Ph4 with E2Ph2 in toluene as solvent at room temperature. The crystal and molecular structure of BiSePh3 has been solved. Crystal data: C18H15BiSe, Mr = 519.3, orthorhombic, space group P212121, a = 15.936 (3) ?, b = 11.550 (3) ?, c = 8.855 (2) ?, Z = 4, d(calcd) = 2.116 g cm-3. The structure consists of tricoordinated and bicoordinated bismuth and selenium, respectively, paired by a Bi-Se bond 2.704 (3) ? long. The tellurium and selenium mixed species undergo diazomethane insertion with formation of the Ph2Bi-CH2-EPh species. Tetraphenyldibismuthine is oxidized by elemental selenium, giving (BiPh2)2Se.
