Synthesis and Crystal-structure Analysis of a 6a-lambda-4-thia-1,2,3,4,6-pentaazapentalene
(1993) Journal of Heterocyclic Chemistry : international journal — Vol. 30, n° 2, p. 349-351 (1993)
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- Abstract
- 6alambda4-Thia-1,2,3,4,6-pentaazapentalenes 3 are conveniently prepared by reacting 5-imino-DELTA3-1,2,4-thiadiazolines 2 with aromatic diazonium tetrafluoroborates in the presence of pyridine. The first crystal structure analysis of this class of compounds 3g is described and shows properties characteristic of a thiapentalene structure; i.e. long N-S-N bonds (1.85 and 1.975 angstrom) in a nearly linear arrangement (164-degrees) and comprising a heterobicycle which is strictly planar.
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Labbe, G., Albrecht, E., Feneaudupont, J., & Declercq, J.-P. (1993). Synthesis and Crystal-structure Analysis of a 6a-lambda-4-thia-1,2,3,4,6-pentaazapentalene. Journal of Heterocyclic Chemistry : international journal, 30(2), 349-351. https://doi.org/10.1002/jhet.5570300209 (Original work published 1993)