Gated Channels in a Honeycomb-like Zinc-Dicarboxylate-Bipyridine Framework with Flexible Alkyl Ether Side Chains
Gated Channels in a Honeycomb-like Zinc-Dicarboxylate-Bipyridine Framework with Flexible Alkyl Ether Side Chains
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DOI：
10.1021/ja109317e
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发表时间：
2011-02-23
影响因子：
15
通讯作者：
Fischer, Roland A.
中科院分区：
文献类型：
--
作者：
Henke, Sebastian;Fischer, Roland A.
用甲氧基乙氧基基团共价官能化1，4-苯二甲酸酯（bdc）诱导该分子的构象自由。将这些2，5-二取代的bdc衍生物与4，4 '-联吡啶作为共配体一起应用于金属有机骨架的合成，得到了新型的蜂窝状结构。这些材料的圆柱形通道填充有柔性基团，其充当客体分子的分子门。这允许CO2相对于N-2和CH 4的高度选择性吸附。
Covalent functionalization of 1,4-benzenedicarboxylate (bdc) with methoxyethoxy groups induces conformational freedom in this molecule. Applying these 2,5-disubstituted bdc derivatives in metal organic framework synthesis together with 4,4'-bipyridine as coligand yields novel honeycomb-like structures. The cylindrical channels of these materials are populated with flexible groups, which act as molecular gates for guest molecules. This allows highly selective sorption of CO2 over N-2 and CH4.