Huo, H.; Dong, J.; Wang, B.-Z.; Zhou, Y.-S.; Ge, Z.-X.; Lian, P. Synthesis, Thermal Behaviours and Crystal Structure of 1,1’-Dioxide-7,7’-bis(terfurazan[3,4-b:3,4’-d:3’’,4’’-f]azepine). ajc 2014, 26, 7143-7147.