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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.
Author(s): Choi JH, Clegg W, Harrington RW
Publication type: Article
Publication status: Published
Journal: Journal of Chemical Crystallography
ISSN (print): 1074-1542
ISSN (electronic): 1572-8854
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