International Journal of Molecular Sciences, Vol.8, No.3, 241-258, 2007
Crystal engineering based on polymeric hydrogen-bonded supramolecules by self-assembling of 9,10-bis(3,5-dihydroxyphenyl)anthracene and 2,2',4,4'-Tetrahydroxybenzophenone with bipyridines
9,10-bis(3,5-dihydroxyphenyl) anthracene (BDHA) and 2,2',4,4'-tetrahydroxybenzophenone (THB) are crystallized with bipyridine bases 4,4'-bipyridyl (bipy), 1,2-bis(4-pyridyl) ethane (bipy-eta), 1,2-di(4-pyridyl) ethylene (dipy-ete), 1,3-di(4-pyridyl) propane (dipy-pra), 4,4'-dipyridyl sulfide (dipy-sul), and 4,4'-dipyridyl disulfide (dipy-dis) to afford molecular complexes (BDHA)center dot(bipy)(2) 1, (BDHA)center dot(bipy-eta)(2) 2, (BDHA)(0.5)center dot(dipy-pra)center dot CH3CH2OH 3, (BDHA)(0.5)center dot(dipy-sul)center dot H2O 4, (BDHA)(0.5)center dot(dipy-dis) center dot CH3CH2OH 5 and (THB)center dot(dipy-ete)(2)center dot H2O 6. The crystal structures of 1-6 have been determined by single-crystal X-ray diffraction. All these molecular complexes exhibit polymeric supramolecular structures via O-H center dot center dot center dot N or O-H center dot center dot center dot O hydrogen-bonding. 1 and 2 form infinitely rectangular macrocycles linked with one another, whose sizes are ca. 12.477 angstrom x 4.802 angstrom and ca. 14.575 angstrom x 4.809 angstrom, respectively. 3, 5 and 6 form the one-dimensional zigzag chain structure. 4 forms a ladder structure, and two dipy-sul molecules were included in a frame.
Keywords:crystal Engineering;crystal structures;polymeric supramolecular structurer;hydrogen-bonding