Multinuclear Luminescent Schiff-Base Zn−Nd Sandwich Complexes

Multinuclear 3d−4f complexes with sandwichlike molecular structures are formed with the Schiff-base ligand bis(3-methoxysalicylidene)ethylene-1,2-phenylenediamine(H2L). The stoichiometry and structures are dependent on the Zn:Nd ratio and counteranions present. They are trinuclear [Nd(ZnL)2(NO3)2(H2...

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Bibliographic Details
Published in:Inorganic chemistry 2006-05, Vol.45 (11), p.4340-4345
Main Authors: Wong, Wai-Kwok, Yang, Xiaoping, Jones, Richard A, Rivers, Joseph H, Lynch, Vince, Lo, Wing-Kit, Xiao, Dang, Oye, Michael M, Holmes, Archie L
Format: Article
Language:English
Subjects:
Crystallography, X-Ray
Indicators and Reagents
Ligands
Luminescence
Magnetic Resonance Spectroscopy
Neodymium - chemistry
Schiff Bases - chemistry
Spectrophotometry, Ultraviolet
Spectroscopy, Near-Infrared
Zinc - chemistry
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Summary:Multinuclear 3d−4f complexes with sandwichlike molecular structures are formed with the Schiff-base ligand bis(3-methoxysalicylidene)ethylene-1,2-phenylenediamine(H2L). The stoichiometry and structures are dependent on the Zn:Nd ratio and counteranions present. They are trinuclear [Nd(ZnL)2(NO3)2(H2O)2]·NO3·EtOH·H2O (1), [Nd(ZnL)2Cl2(H2O)3]·Cl·2MeOH·5H2O (2), and tetranuclear [Nd2(ZnL)2Cl6(MeOH)2]·MeOH (3). Dinuclear complex [NdZnL(NO3)3MeCN]·MeCN (4) was also characterized. Near-infrared (NIR) lanthanide luminescence is observed in these complexes.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic051866e