Structures and Properties of Three Solvent‐Dependent Chiral Compounds Based on N‐Benzoyl‐L‐glutamic Acid. Issue 12 (14th November 2016)

• Record Type: Journal Article
• Authors: Shi, Yajing; Li, Na; Song, Huihua; Yu, Haitao
• Is Part Of: Chinese journal of chemistry. Volume 34:Issue 12(2016:Dec.)
• Page Start: 1335
• Page End: 1343
• Publication Date: 2016-11-14
• Subjects: N‐benzoyl‐L‐glutamic acid -- chiral copper(II) compounds -- solvent‐dependent -- magnetic properties; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cjoc.201600451
• Languages: English
• ISSNs: 1001-604X

Abstract

Abstract: Three solvent‐dependent chiral copper(II) compounds, {[Cu2 (bzgluO)2 (H2 O)2 ]·4H2 O} n (1 ), {[Cu2 (bzgluO)2 (DMSO)2 ]·H2 O} n (2 ) and [Cu2 (bzgluO)2 (DMF)2 ] n (3 ) (H2 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. Compounds1 and2 both crystallize in the orthorhombic space group P 21 21 21 . Compound3 crystallizes in the tetragonal space group P 43 . Compound1 exhibits a ladder‐like 1D chain structure, which is extended by hydrogen‐bonding interactions to form a 3D supramolecular network. Compounds2 and3 both give a diamond‐like 3D structure. Besides, there are hydrogen‐bonding interactions in2 . 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. Abstract : Three solvent‐dependent chiral copper(II) compounds with H2 bzgluO ligand were synthesized and characterized. Compound1 exhibits a ladder‐like 1D chain structure, which is extended by hydrogen‐bonding interactions to form a 3D supramolecular network. Compounds2 and3 both give a diamond‐like 3D structure. Besides, there are hydrogen‐bonding interactions in2 . The structural difference indicates that the solvent system plays a crucial role in modulating structures of coordination compounds. Circular dichroism (CD) indicates the CD chromophore mostly comes from the ligand H2 bzgluO and confirms that the entire crystal products of1, 2 and3 are homochiral. And magnetic studies reveal that there are antiferromagnetic interactions in1 and2 .