Growth of Prussian blue microcubes under a hydrothermal condition: Possible nonclassical crystallization by a mesoscale self-assembly
Growth of Prussian blue microcubes under a hydrothermal condition: Possible nonclassical crystallization by a mesoscale self-assembly
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DOI：
10.1021/jp065055n
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发表时间：
2007-03
影响因子：
3.7
通讯作者：
Xiao-Jun Zheng;Q. Kuang;T. Xu;Zhiyuan Jiang;Shu-Hong Zhang;Zhaoxiong Xie;Rong-Bing Huang;Lan-Sun Zheng
中科院分区：
文献类型：
--
作者：
Xiao-Jun Zheng;Q. Kuang;T. Xu;Zhiyuan Jiang;Shu-Hong Zhang;Zhaoxiong Xie;Rong-Bing Huang;Lan-Sun Zheng
经典的结晶过程从稳定的核开始，然后通过单位细胞复制使核简单扩大。近年来，这种经典的结晶的普遍性受到质疑的生物矿化过程的调查，有几个例子表明，晶体生长可能不遵循这样一个经典的结晶过程。本文用水热法合成了一种典型的配位聚合物普鲁士蓝微晶。通过仔细分析晶体生长过程中的中间产物，我们发现在给定的生长条件下普鲁士蓝的生长可能遵循一个非经典的晶体生长过程，在晶体生长过程中包含了纳米晶体的介观自组装.这种介观自组装过程可能是某些溶解度极低的晶体生长的常见现象。
A classical crystallization process starts from stable nuclei followed by a simple enlargement of the nuclei by unit-cell replication. In recent years, the universality of such classical crystallization has been questioned upon investigations of biomineralization processes, and there are few examples showing that crystal growth may not follow such a classical crystallization process. In this paper, a typical coordination polymer, Prussian blue microcrystals, has been synthesized under hydrothermal conditions. By carefully analyzing the intermediates during the crystal growth process, we found that the growth of Prussian blue under the given growth conditions may follow a nonclassical crystal growth process in which a mesoscale self-assembly of nanocrystallites is included during crystal growth. Such a mesoscale self-assembly process could be a common phenomenon for growth of some crystals with extremely low solubility.