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Crystal Structure of [2,13-Dibenzyl-5,16-dimethyl-2,6,13,17-tetraazatricyclo(14,4,0(1.18),0(7.12))docosane]copper(II) Diperchlorate

Lookup NU author(s): Professor Jong-Ha Choi, Emeritus Professor Bill CleggORCiD, Dr Ross Harrington


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In the title compound, [Cu(C34H52N4)](ClO4)(2), the Cu(II) ion has a square-planar coordination somewhat distorted towards tetrahedral geometry. The macrocyclic ligand adopts a less stable trans-I (RSRS) configuration. The two benzyl groups and two secondary amine H atoms are oriented towards the same side of the macrocyclic plane. The two six-membered rings are in slightly distorted chair and unsymmetrical twist-boat forms while both fivemembered chelate rings are in the gauche conformation. The longer distances (2.050(4) and 2.035(4) angstrom) of Cu-N(tertiary) compared to 2.017(4) and 1.990(4) angstrom for Cu-N(secondary) may be due to the steric effects of the attached two benzyl groups on the tertiary N atoms. The crystal structure is stabilized by hydrogen bonds between secondary NH groups and O atoms of perchlorate counter-ions.

Publication metadata

Author(s): Choi JH, Clegg W, Harrington RW

Publication type: Article

Publication status: Published

Journal: Journal of Chemical Crystallography

Year: 2010

Volume: 40

Issue: 1

Pages: 80-84

ISSN (print): 1074-1542

ISSN (electronic): 1572-8854

Publisher: Springer


DOI: 10.1007/s10870-009-9654-5


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