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|標題:||Single crystal XRD study of 4,4'-dipyridyl - p-ethoxybenzoic acid and N,N'-dipyridylpiperazine - p-ethoxybenzoic acid co-crystals: Direct evidence of H-bond interaction in the corresponding liquid-crystalline mesogenic phases|
|期刊/報告no：:||Journal of Structural Chemistry, Volume 49, Issue 6, Page(s) 1137-1140.|
|摘要:||Supramolecular H-bonded complexes formed between p-ethoxybenzoic acid and 4,4'-dipyridyl or N,N'-dipyridylpiperazine were obtained as nematic liquid-crystalline phases. The corresponding crystals suitable for single crystal X-ray analysis were isolated and investigated. The stoichiomtery of complex 1 is (4,4'-dipyridyl)-2(p-ethoxybenzoic acid) and that of complex 2 is (N,N'-dipyridylpiperazine)-2(p-ethoxybenzoic acid). The molecular packing observed in the crystal structures investigated indicates that the mesogenic phases of the complexes are induced by H-bond interactions.|
|Appears in Collections:||期刊論文|
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