Synthesis and crystal structure of bis(1-{[(quinolin-8-yl)imino]methyl}pyrene-κ2N,N′)silver(I) trifluoromethanesulfonate

Abstract

The title compound, [Ag(qPyr)2]CF3SO3 where qPyr = 1-(quinoline-2-ylmethylene)aminopyrene, C26H16N2, was synthesized from a reaction of silver trifluoromethanesulfonate and qPyr in dichloromethane–methanol mixed media. In this design, the qPyr ligand was chosen for its characteristic excitation and emission profiles, which could enable the tracking of the silver complex within biological targets. The AgI atom resides in a distorted tetrahedral N4 coordination sphere. Analysis of the packing pattern revealed significant intra- and intermolecular π–π stacking interactions between the [Ag(qPyr)2]+ cations. In addition, a weak C—H...O hydrogen bond consolidates the packing between cations and anions.

Keywords

• crystal structure
• pyrene
• π-stacking
• antimicrobial
• silver complex