Emission properties of Sm(III) complexes having remarkably deep-red emission band

[摘要] Novel Sm(III) complexes were synthesized by the reaction of hexafluoroacetylacetonato (hfa) and triphenylphosphine oxide (TPPO), 2,2'-bipyridine (bpy), 1,10-phenanthroline (phen). Emission bands were observed at deep-red region and were attributed to f-f transitions. The branching ratio (electric-dipole transitions 644 nm vs. magnetic dipole transition 598 nm) of the Sm(hfa)(3)(TPPO)(2) was much larger than that of Sm(hfa)(3)(bpy)(2), Sm(hfa)(3)(phen)(2). Those emission properties are due to coordination number and asymmetrical structures of novel Sm(III) complexes. (C) 2008 Elsevier B.V. All rights reserved.

[发布日期] 2009-12-04

[效力级别]  Proceedings Paper

[关键词] Sm(III) complexes;Coordination structure;Quantum yield