4,7-bis(4-pyridylethynyl)-2,1,3-benzothiadiazole and its dipyridinium diperchlorate

Md Akhtaruzzaman, Masaaki Tomura, Yoshiro Yamashita

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The title compound, C20H10N4S, and its dipyridinium salt, 4,4′-(2,1,3-benzodiazol-4,7-diyldiethynyl)dipyridinium diperchlorate, C20H12N4S2+· 2ClO4-, display bond alternation in the 2,1, 3-benzothiadiazole rings, which suggests their quinonoid character. The dipyridinium dication molecules stack along the a axis and form a dimer with short S···N interheteroatom contacts [3.146 (4) Å] between the two 1,2,5-thiadiazole rings. The dimer is surrounded by the perchlorate anions with which it forms a large number of intermolecular N-H···O and C-H···O hydrogen bonds.

Original languageEnglish
Pages (from-to)751-753
Number of pages3
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number6
Publication statusPublished - 2001 Jun 1

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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