A three-dimensional hybrid framework based on novel [Co(4)Mo(4)] bimetallic oxide clusters with 3,5-bis(3-pyridyl)-1,2,4-triazole ligands.
In the title organic-inorganic hybrid complex, poly[[[mu-3,5-bis(3-pyridyl)-1,2,4-triazole]tri-mu(3)-oxido-tetra-mu(2)-oxido-oxidodicobalt(II)dimolybdenum(VI)] monohydrate], {[Co(2)Mo(2)O(8)(C(12)H(9)N(5))].H(2)O}(n), the asymmetric unit is composed of two Co(II) centers, two [Mo(VI)O(4)] 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 [CoO(5)N] coordination environments. Four Co(II) and four Mo(VI) centers are linked by mu(2)-oxide and/or mu(3)-oxide bridges to give an unprecedented bimetallic octanuclear [Co(4)Mo(4)O(22)N(4)] 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 alpha-Po topology.
Zhai
Quan Guo
QG
Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, People's Republic of China.
Li
Shu Ni
SN
Hu
Man Cheng
MC
Jiang
Yu Cheng
YC