Sol-gel synthesis of low-dimensional silica within coordination nanochannels.
Sol-gel synthesis of low-dimensional silica within coordination nanochannels.
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DOI：
10.1021/ja8030906
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发表时间：
2008-06
影响因子：
15
通讯作者：
T. Uemura;Daisuke Hiramatsu;Kaname Yoshida;S. Isoda;S. Kitagawa
中科院分区：
文献类型：
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作者：
T. Uemura;Daisuke Hiramatsu;Kaname Yoshida;S. Isoda;S. Kitagawa
四甲氧基硅烷(TMOS)在配位柱层结构[Cu2(Pzdc)2(Dpe)]n(1a；pzdc=吡嗪-2，3-二羧酸盐，dpe=1，2-二(4-吡啶)乙烯)通道内的溶胶-凝胶缩合反应生成分散在主体骨架中的亚纳米二氧化硅。在这个体系中，二氧化硅的生长得到了有效的抑制，生成的二氧化硅由于其细小的尺寸而显著降低了其结晶温度。
Sol-gel condensation of tetramethoxysilane (TMOS) inside the channels of a coordination pillared layer structure [Cu2(pzdc)2(dpe)]n (1a; pzdc = pyrazine-2,3-dicarboxylate, dpe = 1,2-di(4-pyridyl)ethylene) produced subnanosized silica dispersed within the host framework. In this system, the growth of silica is effectively constrained, and the resultant silica shows a drastic decrease of its crystallization temperature because of its minute size.