Lanthanide Tetrazolate Complexes Combining Single-Molecule Magnet and Luminescence Properties: The Effect of the Replacement of Tetrazolate N<sub>3</sub>by β-Diketonate Ligands on the Anisotropy Energy Barrier
作者:Juan-Ramón Jiménez、Ismael F. Díaz-Ortega、Eliseo Ruiz、Daniel Aravena、Simon J. A. Pope、Enrique Colacio、Juan Manuel Herrera
DOI:10.1002/chem.201601457
日期:2016.10.4
LnIII complexes of general formulas [LnL3]⋅CH3OH [LnIII=Yb (1), Er (2), Dy (3), Gd (4), and Eu (5)], [LnL2(tmh)(CH3OH)]⋅n H2O⋅m CH3OH [LnIII=Yb (1 b), Er (2 b), Dy (3 b), Gd (4 b)], and [LnL2(tta)(CH3OH)]⋅CH3OH [LnIII=Yb (1 c), Er (2 c), Dy (3 c), Gd (4 c)] were prepared by the reaction of Ln(CF3SO3)⋅n H2O salts with the tridentate ligand 2‐(tetrazol‐5‐yl)‐1,10‐phenanthroline (HL) and, for the last two
三个新的集单核LN的III通式的络合物[LNL 3 ] ⋅ CH 3 OH [LN III =镱(1),二(2),镝(3),钆(4)和Eu(5)], [LNL 2(TMH)(CH 3 OH)] ⋅ ñ ħ 2 ö ⋅米 CH 3 OH [LN III =镱(图1b),铒(图2b),镝(图3b),钆(图4b)]和[LnL 2(tta)(CH 3OH)] ⋅ CH 3 OH [LN III =镱(图1c),铒(2 C),镝(图3c),钆(4℃)]是由Ln的反应(CF制备3 SO 3)⋅ Ñ H 2 O盐与三齿配体2-(四唑-5-基)-1,10-菲咯啉(HL)以及在最后两组中还与β-二酮酸酯配体2,2,6,6-四甲基庚酸酯一起使用(tmh)和2-thenoyltrifluoroacetonate(tta)。在[LNL 3 ] ⋅ CH 3 OH配合物Ln的III离子通过LnN 9配位域配位到