430430-98-1Relevant academic research and scientific papers
Quantifying the trans influence of triphenylarsine. Crystal and molecular structures of cis-[PtCl2(SMe2)(AsPh3)] and cis-[PtCl2(AsPh3)2]·CHCl3
Otto, Stefanus,Johansson, Maria H
, p. 135 - 140 (2002)
Reaction between a mixture of cis-trans-[PtCl2(SMe2)2] and 1 equiv. AsPh3 in chloroform gives cis-[PtCl2(SMe2)(AsPh3)] crystallizing in P21/n with a = 10.397(2), b = 14.876(3), c = 13.956(3) ?, β = 90.86(3)° and Z = 4. Selected geometrical parameters are Pt-As 2.3531(10), Pt-S 2.262(2), Pt-Cl (trans to S) 2.301(2), Pt-Cl (trans to As) 2.328(2) ? and S-Pt-As 88.85(6), S-Pt-Cl(2) 90.77(8), As-Pt-Cl(1) 91.07(6) and Cl-Pt-Cl 89.42(7)°. cis-[PtCl2(AsPh3)2]·CHCl3 crystallizes in P21/c with a = 20.557(4), b = 9.5951(19), c = 20.147(4) ?, β = 96.77(3)° and Z = 4. Selected geometrical parameters are Pt-As(1) 2.3599(9), Pt-As(2) 2.3770(9), Pt-Cl(1) (trans to As(1)) 2.3515(18), Pt-Cl(2) (trans to As(2)) 2.3251(18) ? and As-Pt-As 97.87(3), As(1)-Pt-Cl(2) 88.67(5), As(2)-Pt-Cl(1) 84.30(5) and Cl-Pt-Cl 89.32(7)°. By comparison with related structures from the literature the following trans influence series was established PMe2Ph > PPh3 > AsPh3 ≈ SbPh3 > Me2SO ≈ SMe2 ≈ SPh2 > NH3 ≈ olefin > Cl- > MeCN.
