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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11755

Title: Na(I)/Cu(I-II) heterometallic cages interconnected by unusual linear 2-coordinate OCN-Cu(I)-NCO links: synthesis, structural, magnetostructural correlation and computational studies
Authors: RAY, A
ROSAIR, GM
RAJEEV, R
SUNOJ, RB
RENTSCHLER, E
MITRA, S
Keywords: schiff-base complexes
dinuclear copper(ii) complexes
carbon-dioxide fixation
magnetic-properties
crystal-structures
molecular-structure
x-ray
nickel(ii) complexes
binuclear complexes
exogenous bridges
Issue Date: 2009
Publisher: ROYAL SOC CHEMISTRY
Citation: DALTON TRANSACTIONS, (43), 9510-9519
Abstract: A new Na(I)/Cu(I-II) heterometallic coordination complex [Cu(2)L(2)Na(NCO)(2)Cu](n) (1) with an unusual architecture has been synthesised. In 1 cyclic Na-O-Cu-O-Cu cages constructed by the tetradentate N(2)O(2) donor Schiff base ligand (H(2)L = N, N'-bis(2-hydroxyacetophenone) propylenediimine) are interconnected to each other by a rare singly end-to-end bridged OCN-Cu(I)-NCO link generating 1D chain. The complex has been characterised by elemental, spectral and structural analysis. The cyclic voltammogram of 1 has been compared with the analogous complexes. Cryomagnetic susceptibility studies indicate the copper(II) centers in the cyclic Na-O-Cu-O-Cu cages are antiferromagnetically coupled with J = -13.8 cm(-1). Complex 1 is a new addition to a class of rare singly end-to-end cyanato bridged copper(I) species and interestingly the copper ions involved in OCN-Cu(I)-NCO links possess a linear 2-coordinate geometry. Density functional theory calculations have been carried out to gain additional insights into the metal and ligand orbitals participating in this unusual structure.
URI: http://dx.doi.org/10.1039/b911938h
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11755
http://hdl.handle.net/10054/11755
ISSN: 1477-9226
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