A homoleptic, self-assembled [2× 2] square Cu 4 complex exhibiting intramolecular ferromagnetic exchange

Z Xu, LK Thompson, DO Miller

Index: Xu, Zhiqiang; Thompson, Laurence K.; Miller, David O. Journal of the Chemical Society. Dalton Transactions, 2002 , # 12 p. 2462 - 2466

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Citation Number: 25

Abstract

A carboxylic acid-substituted picolinic hydrazone ligand (pcoap) forms a homoleptic [2× 2] tetranuclear Cu (II) 4 complex with four six-coordinate Cu (II) centers bridged by μ-O alkoxide groups in a square grid structure. The terminal carboxylic groups complete the six- coordinate structures at each copper centre, capping off external coordination positions, with two functioning as carboxylates, and two in neutral carboxylic acid form. Despite very ...