Anion-Dependence of Ytterbium Complexes and Their NIR Luminescence

作者:Wang, Jiliang; Li, Hongfeng; Chen, Peng*; Zhang, Meiqi; Sun, Wenbin; Yan, Pengfei*
来源:Zeitschrift fur Anorganische und Allgemeine Chemie, 2016, 642(5): 368-371.
DOI:10.1002/zaac.201500727

摘要

The reaction of 2-aldehyde-8-hydroxyquinoline, histamine, and YbX(3)6H(2)O (X = NO3-, ClO4-) affords two ytterbium complexes [Yb(nma)(2)]ClO(4)2CH(2)Cl(2) (1) and [Yb(nma)(NO3)(2)(DMSO)]CH3OH (2) (Hnma = N-(2-(8-hydroxylquinolinyl)methane(2-(4-imidazolyl)ethanamine))). The crystal structures were determined by X-ray diffraction and it has been revealed that the anions have played important role in the assembly. In the case of 1, the Yb3+ ions are completely encapsulated by two nma ligands with uncoordinated perchlorate anion balancing the positive charge. In the case of 2, the Yb3+ ions are ligated by the ligand, oxygen atoms of the nitrate ion, and DMSO. Both complexes exhibit essential NIR luminescence of Yb3+ ions.