A mixed-valence chair-like tetranuclear copper(I,II) cluster with three linking modes of the 3,5-bis(2-pyridyl)-1,2,4-triazole ligand

作者：Zhai, Quan-Guo; Li, Shu-Ni; Jiang, Yu-Cheng; Hu, Man-Cheng^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2010, 66: 249-252.

DOI：10.1107/S0108270110030313

• COORDINATION POLYMERS
• COMPLEXES

In the tetranuclear copper complex tetrakis[mu-3,5-bis(2-pyridyl)-1,2,4-triazolido]bis[3,5-bis(2-pyridyl)-1,2,4-triazolido]dicopper(I)dicopper(II) dihydrate, [CuI (2)CuII (2)(C(12)H(8)N(5))(6)]center dot 2H(2)O, the asymmetric unit is composed of one CuI center, one CuII center, three anionic 3,5-bis(2-pyridyl)-1,2,4-triazole (2-BPT) ligands and one solvent water molecule. The CuI and CuII centers exhibit [CuIN(4)] tetrahedral and [CuIIN(6)] octahedral coordination environments, respectively. The three independent 2-BPT ligands adopt different chelating modes, which link the copper centers to generate a chair-like tetranuclear metallomacrocycle with metal-metal distances of about 4.4 x 6.2 A disposed about a crystallographic inversion center. Furthermore, strong pi-pi stacking interactions and O-H...N hydrogen-bonding systems link the tetracopper clusters into a two-dimensional supramolecular network.

• 出版日期2010-9
• 单位陕西师范大学