Solvatochromic Behavior of a Nanotubular Metal-Organic Framework for Sensing Small Molecules
Solvatochromic Behavior of a Nanotubular Metal-Organic Framework for Sensing Small Molecules
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用于传感小分子的纳米管金属有机框架的溶剂致变色行为
DOI：
10.1021/ja109437d
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发表时间：
2011-03-30
影响因子：
15
通讯作者：
Zheng, He-Gen
中科院分区：
文献类型：
--
作者：
Lu, Zhen-Zhong;Zhang, Rui;Zheng, He-Gen
提出了一种传感小溶剂分子的纳米管金属有机骨架（MOF）， {[(WS4Cu4)I-2(dptz)(3)]中心点DMF}(n) （dptz = 3,6-二-（吡啶-4-基）-1,2,4,5-四嗪，DMF = n， n-二乙基甲酰胺）。当容纳不同的溶剂分子作为客体时，所得到的包合物根据客体溶剂的不同呈现出不同的颜色，更有趣的是，这些溶剂包合物的带隙与客体溶剂的极性呈线性相关。溶剂分子可以通过相应包合物的紫外可见光谱变化来感知，作为一种新型的传感器显示了信号转导的新途径。这种MOF的感应发生在含有通道的材料内部，而不是外部表面。
A nanotubular metal organic framework (MOF), {[(WS4Cu4)I-2(dptz)(3)] center dot DMF}(n) (dptz = 3,6-di-(pyridin-4-yl)-1,2,4,5-tetrazine, DMF = N,N-dirnethyl-formamide) for sensing small solvent molecules is presented. When accommodating different solvent molecules as guests, the resulting inclusion compounds exhibit different colors depending on the solvent guests, and more interestingly, the band gaps of these solvent-included complexes are in linear correlation with the polarity of the guest solvents. The solvent molecules can be sensed by the changes of UV-vis spectra of the corresponding inclusion compounds, showing a new way of signal transduction as a new kind of sensor. The sensing by such a MOF occurs within the channel-containing material rather than on the external surface.