Synthesis and characterization of thiolato-bridged cadmium(II) complexes with NNS-chelating thiolic ligands

Cadmium(II) complexes with 2-[(2-aminoethyl)amino]ethanethiol (HL1). 2-[(3- aminopropyl)amino]ethanethiol (HL2), 2-[(2-pyridylmethyl)amino]ethanethiol (HL3), and 2-[[2-(2-pyridyl)ethyl]amino]ethanethiol (HL4), [Cd(L-1)](ClO4) (1), [Cd(L-2)](ClO4).1/2CH(3)OH (2), [Cd{Cd(L-2)(2)}(2)](ClO4)(2). CH3CON(C H3)(2) (3a . CH3CON(CH3)(2)), [Cd{Cd(L-2)(2)}(2)]Cl-2. 2CH(3)OH (3b . 2CH(3 )OH), [Cd{Cd(L-3)(2)}(2)](ClO4)(2) (4), [Cd(L-4)](ClO4) (5). have been synt hesized and characterized by measurements of the infrared and electronic sp ectra. The X-ray crystal structures show that 3a and 3b have a thiolato-bri dged trinuclear core with a linear arrangement of three metal atoms. (C) 20 01 Elsevier Science B.V. All rights reserved.