Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1406414 | Journal of Molecular Structure | 2009 | 9 Pages |
Abstract
As a result of mutual recognition, 1,1â²-binaphthalene-2,2â²-diol(binol) (1) and various aromatic diimines including 2,9-dimethyl-1,10-phenanthroline (2), 4,5-diazafluoren-9-one (3), 4,4â²-dimethyl-2,2â²-bipyridine (4), 4,4â²-bipyridine (5), and 5-nitro-1,10-phenanthroline (6) formed well-defined co-crystals 2a, 3a, 4a, 5a and 6a, respectively. In 2a, 3a, 5a and 6a, the components form discrete aggregates, whereas in 4a, the components form infinite one-dimensional arrays. The crystal structures of these co-crystals are all stabilized by O-H···O and O-H···N hydrogen bonds as well as C-HÂ·Â·Â·Ï and ÏÂ·Â·Â·Ï interactions. Remarkably, a preferential co-crystal of 1,10-phenanthroline-5,6-dione (7) over 1,10-phenanthroline (8) and other diimines with binol is established through competitive crystallization and guest-exchange experiments.
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Authors
Bao-Ming Ji, Dong-Sheng Deng, Wei-Zhou Wang, Shao-Bin Miao,