856162-12-4Relevant articles and documents
Syntheses, structures, and luminescent properties of [Bis(iminoalkyl) pyridine]cadmium(II) complexes
Fan, Rui-Qing,Zhu, Dong-Sheng,Mu, Ying,Li, Guang-Hua,Yang, Yu-Lin,Su, Qing,Feng, Shou-Hua
, p. 4891 - 4897 (2004)
Four new CdIII complexes of 2,6-bis[1-(phenylimino)ethyl]- pyridine (L1), 2,6-bis[1-(2,6-diisopropyrphenylimino)ethyl]-pyridine (L2), 2,6-bis[1-(2,6-dimethylphenylirnino)ethyl]-pyridine (L 3), 2,6-bis[1-(2-methylphenylimino)ethyl]pyridine (L4) have been synthesized. These complexes have the formulas [Cd(L 1)Cl2]·1.5CH3CN (1), [Cd(L 2)Cl2] (2), [Cd(L3)Cl2] ·CH3CN (3), and [Cd(L4)Cl2] ·CH3CN (4). The molecular structures of complexes 1-4 were determined by single-crystal X-ray diffraction. Crystallographic studies of 1-4 reveal all four complexes to be five-coordinate with geometries that can be best described as distorted trigonal-bipyramidal. All eight compounds (L 1-L4 and 1-4) are luminescent at room temperature in solution and the solid state. At 298 K in dichloromethane solution, all compounds have fluorescent emissions at about 368-409 nm. The fluorescent emission of these compounds originates from ligand-centered π*-π transitions. The CdII centers play a key role in enhancing the fluorescent emission of the ligands. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.