Synthesis and characterization of [Cu(mb₂en)₂]ClO₄ and [Cu(mb₂en)(PPh₃)₂]BPh₄: crystal structure of [Cu(mb₂en)₂]ClO₄

Abstract

Synthesis and characterization of [Cu(mb 2 en) 2 ]ClO 4 and [Cu(mb 2 en)(PPh 3 ) 2 ]BPh 4 : crystal structure of [Cu(mb 2 en) 2 ]ClO 4 , Journal of Coordination Chemistry, 61:3, 455-463 To link to this article: http://dx.Synthesis and characterization of [Cu(mb 2 en) 2 ]ClO 4 and [Cu(mb 2 en)(PPh 3 ) 2 ]BPh 4 : crystal structure of [Cu(mb 2 en) 2 ]ClO 4The ligand, N,N 0 -bis-(4-methoxy-benzylidene)-ethane-1,2-diamine (mb 2 en), and its corresponding copper(I) complexes, [Cu(mb 2 en) 2 ]ClO 4 (1), and [Cu(mb 2 en)(PPh 3 ) 2 ]BPh 4 (2), have been synthesized and characterized by CHN analyses, 1 H and 13 C-NMR, IR, and UV-Vis spectroscopies. The crystal and molecular structure of [Cu(mb 2 en) 2 ]ClO 4 (1), were determined by X-ray crystallography from a single-crystal. The coordination polyhedron about copper(I) is best described as a distorted tetrahedron. Quasi-irreversible redox behavior was observed for 1 and 2 (E 1/2 ¼ 0.55 and 0.95 V, respectively).

[4-Bromo-N-(pyridin-2-ylmethylidene)aniline-κ2N,N′]iodido(triphenylphosphane-κP)copper(I)

“…For related structures and their applications, see: Dehghanpour et al (2006Dehghanpour et al ( , 2008; Saha et al (2010Saha et al ( , 2011a; Habibi et al (2007); Morshedi et al (2009); Al-Fayez et al (2007); Kickelbick et al (2003); Massa et al (2009); Chen et al (2012); Roy et al (2011). For standard bond lengths, see: Allen et al (1987).…”

“…Effort has been devoted to design and synthesis of new Schiff base ligands to control the geometry and properties of copper(I) complexes (Morshedi et al, 2009). Most of the studies have been on tetrahedral copper(I) complexes of the type [Cu(LL) 2 ] + and Cu(LL)P 2 ] + where LL is a diimine and P is a phosphane (Massa et al, 2009;Dehghanpour et al, 2008;Chen et al, 2012;Roy et al, 2011).…”