61872-10-4Relevant academic research and scientific papers
Metal derivatives of thiosemicarbazones: Crystal and molecular structures of mono- and dinuclear copper(II) complexes with N1-subsitituted salicylaldehyde thiosemicarbazones
Lobana, Tarlok S.,Kumari, Poonam,Butcher, Ray J.,Jasinski, Jerry P.,Golen, James A.
, p. 1861 - 1867 (2013/01/14)
Reactions of copper(II) acetate with N1-subsitituted salicylaldehyde thiosemicarbazones [R1R2C 2=N3-N2H-C1(=S)-N1HR 3;R1 = 2-HO-C6H4-, R2 = H: R3 = Me (H2L1), Et (H2L 2)] are described. Copper(II) acetate was reacted with H 2L1 and H2L2 ligands in the presence of polypyridyl co-ligands, and this led to the formation ofmononuclear complexes, [Cu(κ3-O, N, S-L1)(κ2-N, N-bipy)] (1),[Cu(κ3-O, N, S-L)(κ2-N, N-phen)] [L = L1 (3), L2 (4)], [Cu(κ3-O, N, S-L)(κ2-N, N-tmphen)] [L =L1 (5), L2 (6)] and a dinuclear complex, [Cu2L22(bipy)] (2) (bipy = 2, 2′-bipyridine, phen = 1, 10-phenanthroline, tmphen = 3, 4, 7, 8-tetramethyl-1, 10-phenanthroline). In dinuclear complex 2, one ligand is O, N3,S-chelating, while second is O, N3,S-chelation-cum- N2-bridging; and in all others thio-ligands are O, N 3,S-chelating. The μeff values for the complexes lie in the range of 1.79-1.83 BM. Complexes 1, 3-6 have square pyramidal arrangement, whereas complex 2 has two independent molecules in the crystal lattice, and each molecule has trigonal bipyramidal square planar (5:4) coordination pair. Complexes 2, 4, and 6 showed fluorescence properties. Copyright
