An experimental and quantum mechanical study on luminescence properties of SM(beta-Nbm)(3)center dot(Pd)

A new ternary samarium complex Sm(beta-NBM)(3)center dot(PD) has been synthesized by the reaction of SmCl3 center dot 6H(2)O with beta-naphthoylbenzoylmethane (beta-HNBM) and 1,10-phenanthroline-5,6-dione (PD) in stoichiometry. The new samarium complex obtained was characterized by elemental analysis, H-1 NMR, and FT-IR spectroscopy. The absorption and emission of this complex were systematically investigated. Photoluminescence studies indicated that the energy absorbed by the organic ligands was efficiently transferred to the central Sm3+ ions and the complex showed intensely and characteristically orange emission due to the (4)G(5/2) -> H-6(j) transitions of the central Sm3+ ions. The energy levels (HOMO and LUMO) of the ligands and the complex were further confirmed by computer simulation and cyclic voltammetry, respectively. All the results suggested that the synthesized Sm(beta-NBM)(3)center dot(PD) would have the potential application for organic light-emitting diodes. (C) 2012 Elsevier B.V. All rights reserved.