Chlorotris(p-methylsulfonylphenyl)tin(IV)

The title compound, [SnCl(C₇H₇O₂S)₃], crystallizes in an unusual space group for Ar₃SnCl compounds, namely, Pna2₁. The structure has [-O=S(CH₃)(O)C₆H₄(Ar)₂Sn(Cl)-]_n polymer chains zigzagging along the screw axis parallel to c, which are then closely packed to create a dense structure, unlike the open lattice found for the tert-butyl analogue. The molecular unit has distorted C_s symmetry, with one aryl group forming the pseudo-mirror plane. The environment around the Sn atom is quasi-five coordinate, compared with that found in four-coordinate monomeric Ph₃SnCl or in five-coordinate Ph₃SnCl.L.

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