Rodrigues Carime V, Luz Leonis L, Dutra José Diogo L, Junior Severino A, Malta Oscar L, Gatto Claudia C, Streit Huayna C, Freire Ricardo O, Wickleder Claudia, Rodrigues Marcelo Oliveira
LIMA-Laboratório de Inorgânica e Materiais, Instituto de Química, Campus Universitário Darcy Ribeiro, CEP 70904970, P.O. Box 4478, Brasilia-DF, Brazil.
Phys Chem Chem Phys. 2014 Jul 28;16(28):14858-66. doi: 10.1039/c4cp00405a.
The present work describes a complementary experimental and theoretical investigation of the spectroscopic properties of the four isostructural 3D Ln-MOFs (wherein PDC = pyrazole-3,5-dicarboxylate, [La2(PDC)3(H2O)4]·2H2O (1), [(La0.9Eu0.1)2(PDC)3(H2O)4]·2H2O (2), [(La0.9Tb0.1)2(PDC)3(H2O)4]·2H2O (3) and [(La0.9Eu0.5Tb0.5)2(PDC)3(H2O)4]·2H2O (4)). The experimental data and theoretical calculations show that the singular photophysical properties presented by these Ln-MOFs are induced by strong interaction between the Ln(3+) ions.
本工作描述了对四种同构三维镧系金属有机框架材料（其中PDC = 吡唑-3,5-二羧酸酯，[La₂(PDC)₃(H₂O)₄]·2H₂O (1)、[(La₀.₉Eu₀.₁)₂(PDC)₃(H₂O)₄]·2H₂O (2)、[(La₀.₉Tb₀.₁)₂(PDC)₃(H₂O)₄]·2H₂O (3) 和 [(La₀.₉Eu₀.₅Tb₀.₅)₂(PDC)₃(H₂O)₄]·2H₂O (4)）光谱性质的补充性实验和理论研究。实验数据和理论计算表明，这些镧系金属有机框架材料呈现出的独特光物理性质是由Ln(3+)离子之间的强相互作用引起的。
