N,N′-Bis(Salicylidene)-1,2-Cyclohexanediamine Lanthanide(III) Coordination Polymers: Syntheses, Crystal Structures, and Luminescence Properties

作者：Wang, Gui-Ling^*; Tian, Yong-Mei; Sun, Wen-Bin; Han, Bing-Lu; Yu, Mang-Fei; Xu, Hui; Gao, Ting

来源：Zeitschrift fur Anorganische und Allgemeine Chemie, 2011, 637(11): 1616-1621.

DOI：10.1002/zaac.201000413

• Coordination polymers
• Luminescence
• Lanthanides
• Salen-type ligands
• Crystal structure

The salen-type ligand H2L [H2L = N,N'-bis(salicylidene)-1,2-cyclohexanediamine] was utilized for the synthesis of two lanthanide(III) coordination polymers [LnH(2)L(NO3)(3)MeOH](n) [Ln = Eu (1) and Ln = Lu (2)]. The single-crystal X-ray diffraction analyses of 1 and 2 revealed that they are isomorphous and exhibit one-dimension neutral structure, in which H2L effectively functions as a bridging ligand and give rise to a chain-like polymer. The luminescent properties of polymers in solid state and in solution were investigated and 1 exhibits typical red luminescence of Eu-III ions in solid state and dichloromethane solution and 2 emits the ligand-centered blue luminescence. The energy transfer mechanisms in these luminescent lanthanide polymers were described through calculation of the lowest triplet level of ligand H2L.

• 出版日期2011-9
• 单位黑龙江大学; 哈尔滨工程大学