Di-μ-chlorido-bis[(2,2′:6′,2′′-terpyridine-κ3N,N′,N′′)copper(II)] bis(trifluoromethanesulfonate)

Abstract

In the centrosymmetric title complex, [Cu2Cl2(C15H11N3)2](CF3O3S)2, the CuII metal center is fivefold coordinated by two chloride ions and three nitrogen atoms of the terpyridine ligand in a distorted square-pyramidal geometry; two trifluoromethanesulfonate ions complete the outer coordination sphere. π–π stacking interactions between the pyridyl rings in adjacent molecules contribute to the alignment of the complexes in columns along the a-axis. This structure represents the first example of a binuclear dication of formula [Cu(terpy)2Cl2]2+ with trifluoromethanesulfonate as counter-ions.

Keywords

• crystal structure
• terpyridine
• copper
• trifluoromethanesulfonate salt
• bridging chloride
• π–π stacking