Issue 10, 1982

Gas-phase molecular structures of bis(difluorothiophosphoryl)-methane, CH2(PF2S)2, and bis(difluorothiophosphoryl) ether, O( PF2S)2, determined by electron diffraction

Abstract

The molecular structures of the compounds bis(difluorothiophosphoryl)methane, CH2(PF2S)2, and bis(difluorothiophosphoryl) ether, O(PF2S)2, have been determined by electron diffraction. The methane derivative has two conformers, gauche-gauche and anti-gauche, present in approximately equal amounts. Other important parameters (ra) are r(P–C) 180.7(7), r(P[double bond, length half m-dash]S) 187.9(3), r(P–F) 154.8(2) pm; FPF 101.8(7), FPC 103.2(4), SPC 115.0(10), and PCP 122.6(10)°. For the ether, all PF2S groups have gauche conformations, but it was not possible to distinguish overall C2 and CS structures. For the best refinements, important parameters are r(P–O) 161.0(8), r(P[double bond, length half m-dash]S) 186.5(5). r(P–F) 152.6(3) pm; FPF 101.9(47), FPO 100.2(24), SPO 116.5(33), and POP 130.9(35)°.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1982, 2079-2083

Gas-phase molecular structures of bis(difluorothiophosphoryl)-methane, CH2(PF2S)2, and bis(difluorothiophosphoryl) ether, O( PF2S)2, determined by electron diffraction

D. W. H. Rankin, M. R. Todd and M. Fild, J. Chem. Soc., Dalton Trans., 1982, 2079 DOI: 10.1039/DT9820002079

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