Synthesis and structural elucidation of some new phenylarsenic(III) derivatives of N(-substituted) S-benzyl dithio carbazates

Some new phenyl arsenic(III) derivatives of N(-substituted) S-benzyldithioc arbazate with the general formula PhAsCl2-n [(X-C6H4)C(R)NNC(S)SCH2C6H5](n) where n = 1 or 2; R = H, x = o-OH; R = CH3; x = p- OCH3, p-OH, p- Br, p- F , p- Cl have been synthesised by the reactions of phenylarsenic(III) dichlo ride with the sodium salt of the corresponding ligand in 1:1 and 1:2 molar ratios in refluxing benzene solution. All these compounds have been charact erised by elemental analysis and molecular weight measurements and their pl ausible structure have been proposed on the basis of spectroscopic evidence s. The compounds PhAs [X-C5W4)C(R)NNC(S)SCH2C6H5](2) appears to have distor ted octahedral geometry whereas the compounds PhAsCl[(X-C6H4)C(R)NNC(S)SCH2 C6H5) with trigonal bipyramidal geometry exist in two isomeric forms.