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含新型第二配体的发光铕配合物的合成和性能研究 被引量:2

Synthesis and Properties of a Luminescent Europium Complex Containing a New Second Ligand
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摘要 以二苯甲酰甲烷(DBM)为主配体、新配体2-(2-苯并咪唑基)-8-辛氧基喹啉为第二配体,合成了一种新的Eu(Ⅲ)配合物发光材料,对所得配合物的热性能、光性能和电化学性能进行了研究,结果表明,该配合物具有较高的热稳定性,熔点为235℃,起始分解温度为252℃。配合物的HOMO轨道能级(EHOMO)、LUMO轨道能级(ELUMO)及能隙(Eg)分别为-6.12、3.06和3.06 eV。荧光光谱分析表明,在固态条件下,配体吸收的能量全部转移给Eu(III)离子,配合物的荧光光谱在611 nm处显示一对称的单峰,其半峰宽为4.7 nm。 A luminescent Eu ( Ⅲ ) complex, Eu ( Ⅲ ) (DBM) 3 BIOQ, was synthesized with dibenzoylmethane (DBM) as the first ligand and a new ligand, e. g. 2-(benzimidazol-2-yl)-8-octyloxyquinoline (BIOQ), as the second ligand. The Eu ( Ⅲ) complex exhibits relatively high thermal stability with a melting point of 235℃and a decomposition temperature (onset) of 252℃. The energy levels of HOMO, LUMO and the energy gap (Eg) are -6. 12, 3. 06 and 3.06 eV respectively. The emission spectrum of the complex in solid state (λex =350 nm) exhibits a single and symmetric emission band at 611 nm with a full width at half maximum of 4. 7 nm.
出处 《中山大学学报(自然科学版)》 CAS CSCD 北大核心 2009年第2期54-57,62,共5页 Acta Scientiarum Naturalium Universitatis Sunyatseni
基金 广东省自然科学基金资助项目(039184)
关键词 铕配合物 红色发光 热稳定性 循环伏安法 europium compounds luminescence thermodynamic stability cyclic voltammetry
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  • 1KIDO J, OKAMOTO Y O. Lanthanide metal complexes for electroluminescent materials [ J ]. Chem Rev, 2002, 102 : 2357.
  • 2HUANG L, WANG K Z, HUANG C H, LI F Y, et al. Bright red electroluminescent devices using novel second- ligand contained europium complexes as emitting layers [J]. J Mater Chem, 2001, 11: 790.
  • 3SUN M, XIN H, WANG K Z, et al. Bright and monochromic red light-emitting electrol devices based on a new multifunctional europium ternary complex [ J ]. Chem Commun, 2003 : 702.
  • 4LIANG F, ZHOU Q, CHENG Y,et al. Oxadiazole-functionalized europium (Ⅲ ) 13-diketonate complex for effi- cient red electroluminescence [ J ] . Chem Mater, 2003, 15 : 1935.
  • 5BIAN Z Q, WANG K Z, JIN L P. Syntheses, spectroscopic and crystal structural studies of novel imidazo[4,5 - f] 1,10 - phenanthroline derivatives and their Eu( Ⅲ) ternary complexes with dibenzoylmethane [ J ]. Polyhedron, 2002, 21: 313.
  • 6XIN H, SUN M, WANG K Z, et al. Voltage-independent pure red devices based on a carbazole-functionalized europium complex [J]. Chem Phys Lett, 2004, 388: 55.
  • 7De SILVA C R, WANG J, CARDUCCI M D, et al. thesis, structural characterization and 1 Syn- studies of a novel europium ( Ⅲ ) complex [ Eu ( DBM ) 3 (TPTZ) ] ( DBM: dibenzoylmethanate; TPTZ: 2,4,6-tri (2-pyridyl)-1,3,5-triazine) [J]. Inorg Chim Acta, 2004, 357 : 630.
  • 8WANG Y Y, WANG L H, ZHU X H, et al. Efficient electroluminescent tertiary europium ( Ⅲ) β-diketonate complex with functional 2, 2 -bipyridine ligand [ J ]. Synth Met, 2007, 157: 165.
  • 9LIU Z, WEN F, LI W. Synthesis and electroluminescence properties of europium ( Ⅲ) complexes with new second ligands [ J ]. Thin Solid Films, 2005,478 : 265.
  • 10MCGEHEE M D, BERGSTEDT T, ZHANG C, et al. Narrow bandwidth 1 from blends with energy transfer from semiconducting conjugated polymers to europium complexes [ J ]. Adv Mater, 1999, 11 : 1349.

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