Premium
Structural and Magnetic Characterization of a Linear Trinuclear Copper Complex Formed through Ligand Sharing
Author(s) -
Song Yufei,
Gamez Patrick,
Roubeau Olivier,
Lutz Martin,
Spek Anthony L.,
Reedijk Jan
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300261
Subject(s) - chemistry , perchlorate , methoxide , copper , crystallography , ligand (biochemistry) , octahedron , magnetic susceptibility , antiferromagnetism , electron paramagnetic resonance , crystal structure , ion , inorganic chemistry , nuclear magnetic resonance , biochemistry , physics , receptor , organic chemistry , condensed matter physics
Reaction of bis(2‐hydroxybenzyl)‐1,3‐diamino‐2‐propanol (H 2 bhbdp) with copper perchlorate in methanol leads to the assembly of a trinuclear complex with the general formula [Cu 3 (bhbdp) 2 (CH 3 OH) 2 (ClO 4 ) 2 ] ( 1 ). The complex was characterized by X‐ray crystallography, Ligand Field, IR and ESR spectroscopy, and magnetic susceptibility. The structure of the complex contains a linear trinuclear array of copper ions [the Cu(1)−Cu(2)−Cu(1a) angle is 180° by symmetry], in octahedral, square planar and octahedral environments, respectively. The external Cu1 and Cu1a centers are coordinated by two amine nitrogens, two phenolate oxygen donors, one methoxide oxygen and one oxygen from a perchlorate, while the central Cu2 is coordinated by four phenolate oxygens through ligand sharing. A strong antiferromagnetic interaction between the adjacent Cu II ions dominates the magnetic properties of 1 leading to an S = 1/2 ground state which is fully populated below 150 K. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)