A three‐dimensional hybrid framework based on novel [Co4Mo4] bimetallic oxide clusters with 3,5‐bis(3‐pyridyl)‐1,2,4‐triazole ligands |
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Authors: | Quan‐Guo Zhai Shu‐Ni Li Man‐Cheng Hu Yu‐Cheng Jiang |
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Abstract: | In the title organic–inorganic hybrid complex, polyμ‐3,5‐bis(3‐pyridyl)‐1,2,4‐triazole]tri‐μ3‐oxido‐tetra‐μ2‐oxido‐oxidodicobalt(II)dimolybdenum(VI)] monohydrate], {Co2Mo2O8(C12H9N5)]·H2O}n, the asymmetric unit is composed of two CoII centers, two MoVIO4] tetrahedral units, one neutral 3,5‐bis(3‐pyridyl)‐1,2,4‐triazole (BPT) ligand and one solvent water molecule. The cobalt centers both exhibit octahedral CoO5N] coordination environments. Four CoII and four MoVI centers are linked by μ2‐oxide and/or μ3‐oxide bridges to give an unprecedented bimetallic octanuclear Co4Mo4O22N4] cluster, which can be regarded as the first example of a metal‐substituted octamolybdate and exhibits a structure different from those of the eight octamolybdate isomers reported to date. The bimetallic oxide clusters are linked to each other through corner‐sharing to give two‐dimensional inorganic layers, which are further bridged by trans‐BPT ligands to generate a three‐dimensional organic–inorganic hybrid architecture with six‐connected distorted α‐Po topology. |
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