| Abstract: | The luminescent properties of two Eu~(3+)compounds based on quinoline-2-carboxylic acid(Hqc),Na_2Eu_2(qc)_6(CH_3COO)_2(H_2O)_4].2DMF(1)andEu_2(qc)_6(H_2O)_6].3H_2O(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 1compared with 12.18%for 2. |
