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A pair of chiral Cu( II )‐Tb( III )‐Fe( III ) heterotrimetallic enantiomers: Structural, luminescent, and magnetic studies
Author(s) -
Wang ZiXuan,
Yuan YaNan,
Wang QingLun,
Wang Qi,
Meng XiangJian,
Yang Chun
Publication year - 2021
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.202100228
Subject(s) - chemistry , enantiomer , crystallography , supramolecular chemistry , hydrogen bond , crystal structure , infrared spectroscopy , stereochemistry , molecule , organic chemistry
One chiral heterotrimetallic compound, [Cu(H 2 O){( R,R )‐valcy}Tb(CH 3 OH) 2 (H 2 O)( μ ‐CN)Fe(CN) 5 ]·[Cu(H 2 O){( R,R )‐valcy}Tb(CH 3 OH) 1.5 (H 2 O) 1.5 ( μ ‐CN)Fe(CN) 5 ]·7.85H 2 O·2CH 3 OH ( 1 ) (H 2 ( R,R )‐valcy = N,N′ ‐bis(3‐methoxysalicylidene)‐ 1R,2R ‐1,2‐diaminocyclohexane), has been prepared and structurally characterized by X‐ray single‐crystal diffraction. In 1 , the asymmetric trinuclear {Cu II Tb III Fe III } units are assembled into 1‐D supramolecular single chain by hydrogen‐bonds and the supramolecular chains are further connected into 2D sheets. Magnetic studies show overall weak ferromagnetic interaction and magnetic anisotropy. The enantiomer of 1 , denoted as complex 2 , derive d from N,N′ ‐bis(3‐methoxysalicylidene)‐ 1S,2S ‐1,2‐diaminocyclohexane was also synthesized and characterized by PXRD, Infrared spectra, CD spectra, and fluorescence spectra. The results indicated that complexes 1 and 2 are isomorphous exhibiting similar fluorescence properties.