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Coordination‐Assembled Lanthanide‐Organic Ln 3 L 3 Sandwiches or Ln 4 L 4 Tetrahedron: Structural Transformation and Luminescence Modulation
Author(s) -
Hu ShaoJun,
Guo XiaoQing,
Zhou LiPeng,
Cai LiXuan,
Sun QingFu
Publication year - 2019
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201900101
Subject(s) - lanthanide , chemistry , supramolecular chemistry , luminescence , tetrahedron , ligand (biochemistry) , photoluminescence , crystallography , crystal structure , ion , optoelectronics , materials science , organic chemistry , receptor , biochemistry
Summary of main observation and conclusion Photo‐functional supramolecular lanthanides assemblies have shown great potential in the materials and biomedical fields. Two new tri(tridentate) ligands ( L3 and L4 ) highlighting small variation of the connection position to the central tridentate linkers have been designed, which leads to the emergent formation of either Ln 3 L 3 ‐type sandwich structures or Ln 4 L 4 ‐type tetrahedral cages. Moreover, nonlinear enhancement of lanthanide luminescence based on the modulation of inter‐ligand charge‐transfer states has been revealed on the mix‐ligand Ln 3 L 3 sandwiches. Our results provide important guidance for structure‐design and photoluminescence optimization of supramolecular lanthanide‐organic assemblies.