Fiona H. Fry, B. Graham, L. Spiccia
1997
Citations
0
Influential Citations
28
Citations
Journal
Journal of The Chemical Society-dalton Transactions
Abstract
Two new bis(pentadentate) compounds, 1,2-bis[4,7-bis(carboxymethyl)-1,4,7-triazacyclonon-1-yl]ethane (L 1 ) and 1,4-bis[4,7-bis(carboxymethyl)-1,4,7-triazacyclonon-1-yl]butane (L 2 ), have been prepared by functionalisation of the corresponding alkyl-bridged bis(macrocycles) with acetate pendant arms. Their binuclear copper(II) complexes have been prepared and characterised by X-ray crystallography. Both [Cu 2 L 1 ]·5H 2 O and [Cu 2 L 2 ]·2H 2 O are centrosymmetric about the alkyl bridge with the pentadentate compartments hosting the copper(II) centres oriented away from one another. Each Cu II exhibits distorted square-pyramidal geometry with an N 2 O 2 basal plane and an apical N atom.