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A Two-in-One Crystal: Uptake of Two Different Guests into Two Distinct Channels of a Biporous Coordination Network

机译:二合一晶体:将两个不同的来宾吸收到双孔协调网络的两个不同通道中

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摘要

Coordination networks with well-defined microchannels hold great promise for a number of applications owing to guest adsorption, removal, and exchange behaviors in the channels. In general, the channels formed in crystals are uniform and therefore inclusion phenomena in all the channels are identical. However, if two (or more) distinct channels exist in a crystal, they may take up two (or more) guests independently. Such biporous materials make, for example, the simultaneous isolation or transportation of two different guests possible. Herein, we report the formation of two distinct large channels within a three-dimensional coordination network. These channels adsorb their own preferred guests from a mixture of two guests to form two independent columnar arrays of guests in the crystal. Since the guest uptake proceeds in a single-crystal-to-single-crystal fashion, we can observe all the processes by X-ray crystallographic analysis.
机译:具有明确定义的微通道的配位网络由于通道中的客体吸附,去除和交换行为而在许多应用中具有广阔的前景。通常,晶体中形成的通道是均匀的,因此所有通道中的夹杂现象是相同的。但是,如果晶体中存在两个(或多个)不同的通道,则它们可能会独立占据两个(或多个)来宾。这种双孔材料使得例如两个不同的客人的同时隔离或运输成为可能。在此,我们报告了三维协调网络中两个不同的大通道的形成。这些通道从两个来宾的混合物中吸收自己喜欢的来宾,从而在晶体中形成两个独立的柱状来宾阵列。由于客人的摄取以单晶到单晶的方式进行,因此我们可以通过X射线晶体学分析观察所有过程。

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