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Comparison of copper imine and amine podates: geometric consequences of podand size and donor type

Coyle, Joanne L.; Fuller, Anna; McKee, Vickie and Nelson, Jane (2006). Comparison of copper imine and amine podates: geometric consequences of podand size and donor type. Acta Crystallographica Section C: Crystal Structure Communications, 62(10) m472-m476.

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DOI (Digital Object Identifier) Link: http://doi.org/10.1107/S0108270106034524
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Abstract

The imine podands tris[(2-nitrobenzylidene)aminoethyl]amine and tris[(2-nitrobenzylidene)aminopropyl]amine both stabilize copper(I), forming {tris[(2-nitrobenzylidene)aminoethyl]amine-κ4 N}copper(I) perchlorate aceto-nitrile disolvate, [Cu(C27H27N7O6)]ClO4.2CH3CN, (II), and {tris[(2-nitrobenzylidene)aminopropyl]amine-κ4 N}copper(I) perchlorate, [Cu(C30H33N7O6)]ClO4, (VI), respectively. The larger propyl-based ligand is a poorer fit for the CuI ion. The reduced amine podand tris[(2-nitrobenzyl)aminoethyl]amine binds CuII and the resulting compound, chloro{tris[(2-nitrobenzyl)aminoethyl]amine-κ4 N}copper(II) chloride ethanol solvate, [Cu(C27H33N7O6)Cl]Cl.C2H5OH, (IV), shows both intra- and inter-molecular hydrogen bonding, which gives rise to RRS or SSR conformations in the podand strands rather than the expected pseudo-threefold symmetry.

Item Type: Journal Article
Copyright Holders: 2006 International Union of Crystallography
ISSN: 1600-5759
Keywords: cryptand hosts; reactivity; complexes; chemistry; dioxygen; database; ligands
Academic Unit/Department: Science
Item ID: 6127
Depositing User: Astrid Peterkin
Date Deposited: 15 Feb 2007
Last Modified: 25 Feb 2016 03:00
URI: http://oro.open.ac.uk/id/eprint/6127
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