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Supramolecular Architectures of Copper(II) Perchlorate Complexes of cis,trans-1,3,5-Triaminocyclohexane Assembled Exploiting the Delicate Balance Between Weak and Strong Interactions

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Supramolecular Architectures of Copper(II) Perchlorate Complexes of cis,trans -1,3,5-Triaminocyclohexane AssembledExploiting the Delicate Balance Between Weak andStrong Interactions

M. Nieves Corella Ochoa, Geoffrey J. T. Cooper, Graham N. Newton, De-Liang Long, Georg Seeber, and Leroy Cronin

WestCHEM, Department of Chemistry, The University of Glasgow, Glasgow, G12 8QQ, UK Reprint requests to Professor Leroy Cronin. Fax: +44 141 330 4888.

E-mail: L.Cronin@chem.gla.ac.uk

Z. Naturforsch.2010,65b,304 – 310; received November 23, 2009

Dedicated to Professor Rolf W. Saalfrank on the occasion of his 70thbirthday

The complexation of copper(II) perchlorate with cis,trans-1,3,5-triamino-cyclohexane (trans- tachH) yields four related mononuclear complexes, [Cu(trans-tachH)2](ClO4)4·(H2O) (1), [Cu(trans- tachH)2](ClO4)4·2MeOH (2), [Cu(trans-tachH)2(ClO4)](ClO4)3 (3) and [Cu(trans-tach)(trans- tachH)(ClO4)2](ClO4)·H2O (4). These complexes only differ with respect to ligand protonation, solvent coordination / content, and counterion binding, yet these small differences manifest as vast differences in the supramolecular structures, and we also show that certain crystalline phases of these four compounds persist for different lengths of time in the mother liquor.

Key words:Self-assembly, Stoichiometry Control, Coordination Complexes, Supramolecular Chemistry, Hydrogen Bonding Networks

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