@article {4515, title = {Fromm{\textquoteright}s methylphenyldithiodimethylketuret}, journal = {Acta Crystallographica Section C-Crystal Structure Communications}, volume = {55}, year = {1999}, note = {ISI Document Delivery No.: 186FJTimes Cited: 2Cited Reference Count: 8Part 3}, month = {Mar}, pages = {434-436}, type = {Article}, abstract = {The {\textquoteright}keturet{\textquoteright} obtained by reacting 1-methyl-1-phenyldithiobiuret with acetone is shown to be 6,6-dimethyl-2-methylanilino-5,6-dihydro-4H-1,3,5-thiadiazine-4-thione, C12H15N3S2. The molecule contains a six-membered thiadiazine ring with a distorted half-chair conformation, rather than a previously proposed four-membered ring structure. Molecular dimensions are normal, and the molecules (two per asymmetric unit) are linked by two N-H ... S hydrogen bonds, one fairly strong [H ... S 2.39 (3) Angstrom] and one weaker [H ... S 2.65 (4) Angstrom].}, isbn = {0108-2701}, url = {://000079717700073}, author = {Davidson, J. S. and Rettig, S. J. and Trotter, J.} }