Crystalline Inorganic Frameworks with 56-Ring, 64-Ring, and 72-Ring Channels
Crystalline Inorganic Frameworks with 56-Ring, 64-Ring, and 72-Ring Channels
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DOI：
10.1126/science.1232097
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发表时间：
2013-02-15
期刊：
影响因子：
56.9
通讯作者：
Wang, Sue-Lein
中科院分区：
文献类型：
--
作者：
Lin, Hsin-Yau;Chin, Chih-Yuan;Wang, Sue-Lein
具有超大孔（>12元环，12R）的沸石样结构的开发是零星的，目前为30R。一般来说，通过分子模板导致结晶框架，而使用允许大得多的孔的有组织的组件产生非结晶框架。从离散模板和有组织的组件生成结晶度的合成方法代表了用于开发跨越微观和介观体系的结晶多孔无机框架的可行设计策略。我们表明，通过在单一系统中整合沸石和介孔二氧化硅的模板机制，镓锌磷的通道尺寸可以系统地从24 R和28 R调节到40 R，48 R，56 R，64 R和72 R。虽然材料具有低的热稳定性并保留其模板剂，但Mn 2+的单激活剂掺杂可以产生白光光致发光。
The development of zeolite-like structures with extra-large pores (>12-membered rings, 12R) has been sporadic and is currently at 30R. In general, templating via molecules leads to crystalline frameworks, whereas the use of organized assemblies that permit much larger pores produces noncrystalline frameworks. Synthetic methods that generate crystallinity from both discrete templates and organized assemblies represent a viable design strategy for developing crystalline porous inorganic frameworks spanning the micro and meso regimes. We show that by integrating templating mechanisms for both zeolites and mesoporous silica in a single system, the channel size for gallium zincophosphites can be systematically tuned from 24R and 28R to 40R, 48R, 56R, 64R, and 72R. Although the materials have low thermal stability and retain their templating agents, single-activator doping of Mn2+ can create white-light photoluminescence.