A self-assembled Pd2L4 cage that selectively encapsulates nitrate.
نویسندگان
چکیده
A M2L4 cage with D4 symmetry was self-assembled from four anthracene-bridged benzimidazole ligands and two Pd(II) ions. The cage features a concise hydrophobic pocket wrapped up by the anthracene walls with eight hydrogen-bond donors pointing inward, which provide a specific binding site for nitrate, with a binding affinity at least two orders of magnitude higher than all the other anions screened including halide anions, which have a very similar ionic radius and charge density.
منابع مشابه
Flexibility of components alters the self-assembly pathway of Pd2L4 coordination cages.
The self-assembly process of a Pd2L4 cage consisting of flexible ditopic ligands and Pd(ii) ions was revealed by QASAP (quantitative analysis of self-assembly process), which enables one to obtain information about the intermediates transiently produced during the self-assembly as the average composition of all the intermediates. It was found that the dominant pathway to the cage is the formati...
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ورودعنوان ژورنال:
- Chemical communications
دوره 51 94 شماره
صفحات -
تاریخ انتشار 2015