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Cyclic S-N compounds and phosphorus reagents - Part XVIII1: Synthesis and X-ray structural characterization of phosphiniminocyclotrithiazenes with a primary amino substituent
Janaswamy Srinivas, G. Sreenivasa Murthy, Madhugiri N. Sudheendra Rao
Published in
Volume: 37
Issue: 12
Pages: 1052 - 1056
First examples of phosphiniminocyclotrithiazenes containing a primary amino group, (Ph)(R)(1PrNH)PN-S3N3 [R=(i) Ph, I and (ii) DCA (dicyclohexylamino), II] have been isolated from room temperature reactions of S4N4 with the corresponding phosphine in acetonitrile. Single crystal X-ray structure of compounds I and n reveal very similar endocyclic structural features, but for the deviation of tricoordinate sulphur [S(1)] from the mean plane of the ring. The primary amino group [(CH3)2CHNH] binds equally strongly in I and H, but the N-H bonds show differences in both bond length and orientation with respect to the adjacent P-N bond. Heterocycles I and n show different sensitivities for ring conversion to cyclophosphathiazene.
About the journal
JournalIndian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry
Open AccessNo