TY - JOUR
T1 - 4,7-bis(4-pyridylethynyl)-2,1,3-benzothiadiazole and its dipyridinium diperchlorate
AU - Akhtaruzzaman, Md
AU - Tomura, Masaaki
AU - Yamashita, Yoshiro
PY - 2001/6/1
Y1 - 2001/6/1
N2 - 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.
AB - 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.
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U2 - 10.1107/S0108270101004802
DO - 10.1107/S0108270101004802
M3 - Article
C2 - 11408695
AN - SCOPUS:0035367225
VL - 57
SP - 751
EP - 753
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
SN - 0108-2701
IS - 6
ER -