ISSN:
1600-5368
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Redetermination of the title compound, C15H16N4O2, at 193 K reveals considerable differences in geometry of the central bridging fragment as compared to that at 293 K [Atroshchenko, Blokhina, Shakhel'dyan, Grudtsyn, Gitis, Borbulevich, Blokhin, Kaminskii, Shishkin & Andrianov (2000). Russ. J. Org. Chem. 36, 684–692]. The results show that there is apparent shortening of the N=N bond and lengthening of both neighbouring C—N bonds in the room-temperature structure compared with the low-temperature structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S1600536801020128