多重氢键自组装联萘酚和含氮化合物(英文)

Multiple Hydrogen Bonds in the Self-assembly of Binaphthol with N-Containing Compounds

作为相互识别的结果,(±)-2,2'-二羟基-1,1'-联萘酚可与4,4',6,6'-四甲基-2,2'-联嘧啶、1,2-双(4-吡啶)乙烷、反式-1,2-双(4-吡啶)乙烯、4,4'-联吡啶-N,N'-双氧化物及双-2-吡啶基甲酮等多种含氮化合物分别形成外形良好的共晶化合物1,2,3,4及5.本文对5个共晶化合物的晶体结构进行了分析.结果表明,由于这些晶体结构中都存在强的O—H…O,N—H…O和O—H…N氢键,晶体可稳定存在.在这5个共晶中,各组分依靠强氢键形成无限一维极性排列.由于C—H…π和π…π等弱作用对晶体结构的形成产生很大作用并能影响到晶体骨架结构,因此,在这些弱作用的影响下,共晶1,2和5展现出二维层状结构,而共晶3和4呈现为三维超分子结构.

As a result of mutual recognition,（±）-2,2′-dihydroxy-1,1′-binaphthyl（binol） and various N-containing compounds 4,4′,6,6′-tetramethyl-2,2′-bipyrimidine（4-tmpi）,1,2-bis（4-pyridyl）ethane（4-bpa）,trans-1,2-bis（4-pyridyl）ethene（4-bpe）,4,4′-bipyridine-N,N′-dioxide（4-bpo）,and di-2-pyridyl ketone（4-dpk） formed well-defined co-crystals 1— 5,respectively.The crystal structures of the co-crystals were elucidated and all stabilized by O—H…O,N—H…O and O—H…N hydrogen bonds.In co-crystals 1—5,the components form an infinite one-dimensional（1D） polar array.The weak C—H…π and π…π interactions have great role in the crystals and influence the architecture of the crystal structure.So,the co-crystals 1,2 and 5 exhibit two-dimensional（2D） sheet structures,while the co-crystals 3 and 4 display three-dimensional（3D） supramolecular architectures.