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Acta Cryst. (2013). C69, 1177-1180  [ doi:10.1107/S0108270113023792 ]

Two seven-membered heterocycles with 1,2-diaza ring N atoms: 3,5,7-triphenyl-1,2-di­azacyclo­hepta-1(7),2-diene and 3,7-bis(2-hy­droxy­phen­yl)-5-phenyl-1,2-di­azacyclo­hepta-1(7),2-diene

Y.-C. Shi and H.-Y. Duan

Synopsis: Two compounds containing seven-membered heterocyclic rings with 1,2-diaza N atoms have been synthesized and characterized. In each, the C5N2 ring adopts a twist-boat conformation.

Formula: C23H20N2 and C23H20N2O2


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