952409-73-3Relevant academic research and scientific papers
One-dimensional Salen-type Chain-like lanthanide(III) coordination polymers: Syntheses, crystal structures, and fluorescence properties
Wang, Gui-Ling,Tian, Yong-Mei,Cao, Dian-Xue,Yu, Yan-Shuang,Sun, Wen-Bin
, p. 583 - 588 (2011)
Four salen-type lanthanide(III) coordination polymers [LnH 2L(NO3)3(MeOH)x]n [Ln = La (1), Ce (2), Sm (3), Gd (4)] were prepared by reaction of Ln(NO 3)3·6H2O with H2L [H 2L = N,Na-bis(salicylidene)-1,2-cyclohexanediamine]. Single-crystal X-ray diffraction analysis revealed that H2L effectively functions as a bridging ligand forming a series of 1D chain-like polymers. The solid-state fluorescence spectra of polymers 1 and 2 emit single ligand-centered green fluorescence, whereas 3 exhibits typical red fluorescence of SmIII ions. The lowest triplet level of ligand H2L was calculated on the basis of the phosphorescence spectrum of GdIII complex 4. The energy transfer mechanisms in the lanthanide polymers were described and discussed.
