Acta Crystallographica, Section C: Crystal Structure Communications 1995-08-15

Thiodicarb.

H L Ammon, R J Seymour, W M Huffman, T D D'Silva

Index: Acta Crystallogr. C 51 ( Pt 8) , 1619-21, (1995)

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Abstract

Dimethyl N,N'-[thiobis(methyliminocarbonyloxy)] bis-(ethanimidothiolate), C10H18N4O4S3, is an example of a sulfenylated biscarbamate insecticide. The molecule has an approximate twofold axis through the central S atom which joins the two methyliminocarbonyloxyethanimidothiolate units. One of the two arms is planar in the crystal. Semi-empirical geometry optimization for an isolated molecule favors a model with both arms planar and, thus, crystal packing may be responsible for the observed non-planarity in one arm. Bond lengths and angles have similar values to those of the 'monomeric' carbamate insecticide methomyl.