Synthesis and characterisation of organoarsenic(III) xanthates and dithiocarbamates. X-ray crystal structures of RAs(S2CNEt2)2, R = Me and Ph
                                
                                    
                                        作者:Shivram S. Garje、Vimal K. Jain、Edward R.T. Tiekink                                    
                                    
                                        DOI:10.1016/s0022-328x(96)06905-7
                                    
                                    
                                        日期:1997.6
                                    
                                    Organoarsenic(III) xanthates and dithiocarbamates of the types [RAs(S boolean AND S)(2)] and [Me2As(S boolean AND S)] [R = Me, Et, Ph; (S boolean AND S) = S2COEt, S2CNR2' (R' = Me, Et)] have been prepared and characterised by arsenic analysis, mass, IR and NMR (H-1 and C-13) spectral data. Crystal structure determinations for two of the compounds, RAs(S2CNEt2)(2) [R = Me or Ph], have also been determined and show that the arsenic atoms exist in pyramidal geometries and that the Lewis acidities of the RAs [R = Me or Ph] centres are comparable.