Notes. Crystal structure of bis(diphenylmethyleneamino) monosulphide, S(NCPh2)2

Abstract

Crystals of the title compound are monoclinic with a= 21.323(6), b= 10.260(3), c= 10.271(3)Å, β= 110.50(5)°, Z= 4, and space group P2₁/a. The structure has been refined to R= 0.035 for 2 325 diffractometer-measured intensities for which l > 3σ(l). The PhCNSNCPh system is largely coplanar, with the two remaining phenyl groups twisted 62.0 and 49.2° respectively out of the central CNSNC plane. Bond angles at N [121.5(2), 122.4(2)°] and S [94.7(1)°] and bond distances S–N [1.675(2), 1.676(2)Å] and C–N [1.285(3), 1.288(3)Å] indicate that the SN bonds are essentially single with no significant delocalisation of the lone-pair charge at nitrogen.