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Synthesis, Characterization and Near‐Infrared Photoluminescence of Monoporphyrinate Lanthanide Complexes Containing an Anionic Tripodal Ligand
Author(s) -
He Hongshan,
Guo Jianping,
Zhao Zhixin,
Wong WaiKwok,
Wong WaiYeung,
Lo WingKit,
Li KingFai,
Luo Li,
Cheah KokWai
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300511
Subject(s) - chemistry , lanthanide , photoluminescence , tripodal ligand , substituent , ligand (biochemistry) , ytterbium , infrared spectroscopy , boron , crystal structure , crystallography , photochemistry , inorganic chemistry , ion , stereochemistry , doping , organic chemistry , biochemistry , physics , receptor , optoelectronics , optics
Twelve neutral stable complexes of ytterbium( III ) and erbium( III ) coordinated by anionic hydridotris(pyrazol‐1‐yl)borate and meso ‐tetraphenylporphyrinate, and its derivatives with different substituents in the para position of the phenyl groups, were prepared and characterized. Crystal structure analyses revealed that seven nitrogen atoms, four from the porphyrinate dianion and three from the anionic tripodal ligand, are symmetrically coordinated to the lanthanide ions. Photophysical investigations of the complexes showed an enhancement of near‐infrared photoluminescence as compared to aqua‐coordinated monoporphyrinate lanthanide complexes. The solvent effect and substituent effects on the photoluminescent properties of the complexes were also investigated (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).