Novel Microstructures of Self-Assembled Microcrystallites of (NH4)3PW12O40and Cs3PW12O40
Novel Microstructures of Self-Assembled Microcrystallites of (NH4)3PW12O40and Cs3PW12O40
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(NH4)3PW12O40和Cs3PW12O40自组装微晶的新型微观结构
DOI：
10.1246/cl.1997.727
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发表时间：
1997
影响因子：
1.6
通讯作者：
M. Misono
中科院分区：
文献类型：
--
作者：
Takeru Ito;I. Song;K. Inumaru;M. Misono
杂多化合物(NH4)3PW12O40和Cs3PW12O40的自组装微晶(或聚集体)有三种不同的微观结构：(1)单向自组装并相互外延连接形成十二面体的微晶；(2)单向自组装的微晶，但外延连接很少形成圆形聚集体；(3)分散的细小颗粒。微观结构的这种变化可以用化合物的溶解度变化来解释，即沉淀温度和阳离子的种类。
Three different microstructures of self-assembled microcrystallites (or of aggregates) of heteropoly compounds, (NH4)3PW12O40 and Cs3PW12O40, have been found: (1) microcrystallites that self-assembled with unidirectional orientation and were epitaxially connected with each other to form dodecahedra, (2) microcrystallites that self-assembled with unidirectional orientation, but were little connected epitaxially each other to form round aggregates, and (3) dispersed fine particles. This variation of the microstructure was consistently explained by the change in the solubility of the compounds, that is, the precipitation temperature and the kind of cation.