1D polymeric copper(I) and dinuclear silver(I) complexes of a bidentate Schiff base ligand: Synthesis, spectroscopic characterization and thermal studies. (24th November 2016)

• Record Type: Journal Article
• Authors: Khalaji, Aliakbar Dehno; Peyghoun, Seyyed Javad; Akbari, Alireza; Feizi, Nourollah; Dusek, Michal; Eigner, Vaclav
• Is Part Of: Polyhedron. Volume 119(2016)
• Page Start: 429
• Page End: 433
• Publication Date: 2016-11-24
• Subjects: One-dimensional polymer -- Copper(I) -- Di-nuclear complex -- Silver(I) -- X-ray diffraction; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.08.007
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: One-dimensional polymeric copper(I) complex [Cu((NO2 -ba)2 en)( μ -I)] n (1 ) and dinuclear silver(I) complex [Ag((NO2 -ba)2 en)( μ -ONO2 )]2 (2 ) were synthesized and characterized. Their structures have been confirmed by single crystal X-ray diffraction analysis. The complex1 has a polymeric structure involving μ -I bridges while complex2 has di-nuclear structure involving μ -O bridges. Abstract: One-dimensional polymeric copper(I) complex [Cu((NO2 -ba)2 en)( μ -I)] n (1 ) and dinuclear silver(I) complex [Ag((NO2 -ba)2 en)( μ -ONO2 )]2 (2 ), where {(NO2 -ba)2 en = N, N′-bis(4-nitrobenzaldehyde)ethane-1, 2-diamine}, were synthesized, characterized by elemental analysis (CHN), FT-IR and 1H NMR spectroscopy, thermal analysis and their structure were confirmed by single crystal X-ray diffraction analysis. The Schiff base acts as NN-bidentate chelating ligand coordinated to Cu(I) and Ag(I) ions. The structural analysis revealed Cu(I) and Ag(I) centers were four-coordinated with N2 I2 in1 and N2 O2 in2 in form of a distorted tetrahedron. The complex1 has a polymeric structure involving μ -I bridges while complex2 has di-nuclear structure involving μ -O bridges with a molar proportion 1:1 of Cu(I) or Ag(I) to the Schiff base ligand. Thermogravimetric analysis of the complexes revealed their thermal stability and decomposition pattern.