摘要
The synthesis and X-ray structural characterisation of a new Cu(II) complex, [Cu(L 1 )Cl](ClO 4 )·CH 3 OH (1) [L 1 = N,N′-bis((pyridine-2-yl)phenylidene)-1,3-diaminopropan-2- ol], has been described in this work. The structural study reveals that the Cu(II) centre in 1 has a square pyramidal geometry with a trigonality index τ = 0.43, being coordinated by the organic ligand and a chloro group. The interaction of complex 1 and another complex previously reported by our group, [Cu(L 2 )](ClO 4 ) 2 (2) [L 2 = N-(1-pyridin-2-yl-phenylidene)-N′-[2-({2-[(1-pyridin-2-ylphenylidene) amino]ethyl}amino)ethyl]ethane-1,2diamine], with calf thymus DNA (CT-DNA) has been investigated using absorption and emission spectral studies. The binding constant (K b ) and the linear Stern-Volmer quenching constant (K sv ) have been determined. © 2011 Elsevier Ltd. All rights reserved.