Abstract:The two chemically-equivalent halves of the molecule are related by a virtual mirror plane with the two phenyl substituents nearly in the plane of the heterocyclic fused-ring system. The average C-S distance, 1.732 A, is similar to that found in classical thiophenes; the C-S-C angle, 96.4 °, however is typical of'non-classical' thiophenes.conventional R of 0.040. The largest peak in the final difference map had a magnitude of 0.24 e A -a and was located near N(1). The final positional and thermal parameters ar… Show more
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