X-Ray crystal structure analyses of two thiathiophthen nitrogen isosteres reveal S ⋯ N interactions similar to S ⋯ X interactions found when X = O, S, and Se; one ‘normal’(1·7177Å) and one ‘long’(1·8872Å) S ⋯ N distance have been found.
F. Leung and S. C. Nyburg, J. Chem. Soc. D, 1970, 707 DOI: 10.1039/C29700000707
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