Europium Coordination Compound with Highly Improved Luminescent Quantum Yield

分类： 化学 >> 物理化学 提交时间： 2017-11-05 合作期刊: 《结构化学》

LI Xin LI Chen-Yuan ZHENG Wei-Wei YANG Dan XIONG Ke-Cai GAI Yan-Li

摘要： The luminescent properties of two Eu3+ compounds based on quinoline-2-carboxylic acid (Hqc), [Na2Eu2(qc)6(CH3COO)2(H2O)4].2DMF (1) and [Eu2(qc)6(H2O)6].3H2O (2), as well as their syntheses and structures are reported. Both compounds are formed by slow evaporation at room temperature and exhibit zero dimensional dinuclear structures. It is worth mentioning that a 4.5-fold enhancement in luminescent quantum yield is achieved by reducing the nonradiative deactivation, through which the quantum yield increases remarkably to 67.62% for 1 compared with 12.18% for 2.

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