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Structures and Properties of Three Solvent‐Dependent Chiral Compounds Based on N ‐Benzoyl‐ L ‐glutamic Acid
Author(s) -
Shi Yajing,
Li Na,
Song Huihua,
Yu Haitao
Publication year - 2016
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.201600451
Subject(s) - chemistry , crystallography , orthorhombic crystal system , supramolecular chemistry , hydrogen bond , tetragonal crystal system , powder diffraction , thermogravimetric analysis , crystal structure , solvent , copper , infrared spectroscopy , molecule , organic chemistry
Three solvent‐dependent chiral copper(II) compounds, {[Cu 2 (bzgluO) 2 (H 2 O) 2 ]·4H 2 O} n ( 1 ), {[Cu 2 (bzgluO) 2 (DMSO) 2 ]·H 2 O} n ( 2 ) and [Cu 2 (bzgluO) 2 (DMF) 2 ] n ( 3 ) (H 2 bzgluO= N ‐benzoyl‐ L ‐glutamic acid) have been synthesized under ambient temperature conditions and characterized by elemental analysis, IR spectra, UV spectra, thermogravimetric analysis, powder X‐ray diffraction (PXRD) and single‐crystal X‐ray diffraction. Compounds 1 and 2 both crystallize in the orthorhombic space group P 2 1 2 1 2 1 . Compound 3 crystallizes in the tetragonal space group P 4 3 . Compound 1 exhibits a ladder‐like 1D chain structure, which is extended by hydrogen‐bonding interactions to form a 3D supramolecular network. Compounds 2 and 3 both give a diamond‐like 3D structure. Besides, there are hydrogen‐bonding interactions in 2 . The structural difference indicates that the solvent system plays a crucial role in modulating structures of coordination compounds. Circular dichroism (CD) and the magnetic properties of the compounds have also been investigated.