Crystal engineering using very short and linear C(sp)–H⋯N hydrogen bonds: formation of head-to-tail straight tapes and their assembly into nonlinear optical polar crystals
Crystal engineering using very short and linear C(sp)–H⋯N hydrogen bonds: formation of head-to-tail straight tapes and their assembly into nonlinear optical polar crystals
复制标题
DOI：
10.1039/b103689k
复制
发表时间：
2001
影响因子：
4.9
通讯作者：
M. Ohkita;Takanori Suzuki;K. Nakatani;T. Tsuji
中科院分区：
文献类型：
--
作者：
M. Ohkita;Takanori Suzuki;K. Nakatani;T. Tsuji
4-乙炔基吡啶(1)和4-(4-乙炔基苯基)乙炔基吡啶(2)的结晶导致C(Sp)-H⋯N氢键直带，在2的情况下进一步组装成极性晶体，并显示出强烈的粉末倍频响应，效率是结晶尿素的8倍。
The crystallization of 4-ethynylpyridine (1) and 4-(4-ethynylphenyl)ethynylpyridine (2) leads to C(sp)-H⋯N hydrogen bonded straight tapes that further assemble into polar crystals, in the case of 2, and show intense powder SHG response, 8 times more efficient than crystalline urea.