Crystal structure of (±)-[trans-cyclohexane-1,2-diylbis(azanediyl)]diphosphonium dibromide dichloromethane disolvate

Abstract

The cation of the title solvated salt, C42H42N2P22+·2Br−·2CH2Cl2, lies on a crystallographic twofold rotation axis. The 1,2-diaminocyclohexane fragment has a chair conformation with two N atoms in a transoid conformation [N—C—C—N = 163.4 (2)°]. In the crystal, the cations are linked to the anions by N—H...Br and C—H...Br hydrogen bonds, forming a chain structure along the c axis. The dichloromethane molecule takes part in the hydrogen-bond network through C—H...π and C—H...Br interactions.

Keywords

• crystal structure
• trans-diaminocyclohexane
• diphosphonium ligands
• C—H...Br and C—H...π interactions