Synthesis and characterization of the cubic coordination cluster (H₃IBT = 4,5-bis(tetrazol-5-yl)imidazole)

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• 作者：Mircea Dincă ; T. David Harris ; Anthony T. Iavarone ; Jeffrey R. Long
• 关键词：Coordination clusters ; Cobalt ; Tetrazoles ; Mixed-valence ; Cage compounds
• 刊名：Journal of Molecular Structure
• 出版年：2008
• 出版时间：12 November 2008
• 年：2008
• 卷：890
• 期：1-3
• 页码：139-143
• 全文大小：465 K

文摘

A self-assembly reaction between the ditopic ligand 4,5-bis(tetrazol-5-yl)imidazole (H₃IBT) and cobalt(II) chloride in basic aqueous medium afforded the mixed-valence molecular species (1). X-ray analysis of 1 revealed a cubic arrangement of six trivalent and two divalent cobalt ions, with the latter situated on opposing vertices along the cube diagonal. The cubic coordination cluster was further characterized by cyclic voltammetry, mass spectrometry, and magnetic measurements.