Bis(quinolinium) tetrabromidomanganate(II)

Veronica Papa,Anke Spannenberg,Matthias Beller,Kathrin Junge

doi:10.1107/s2414314619012318

Abstract

The title compound, (C9H8N)2[MnBr4], consists of two quinolinium cations and a [MnBr4]2− anion. The manganese(II) atom, which lies on a twofold rotation axis, is coordinated by four bromide ligands and exhibits a tetrahedral coordination geometry. The [MnBr4]2− anion and the quinolinium cations are linked by N—H...Br hydrogen bonds. π–π stacking interactions are observed between the quinolinium cations.

Highlights

The title compound, (C9H8N)2[MnBr4], consists of two quinolinium cations and a [MnBr4]2À anion
The manganese(II) atom, which lies on a twofold rotation axis, is coordinated by four bromide ligands and exhibits a tetrahedral coordination geometry
The [MnBr4]2À anion and the quinolinium cations are linked by N—HÁ Á ÁBr hydrogen bonds. – stacking interactions are observed between the quinolinium cations

Summary

Structure description

The asymmetric unit consists of one quinolinium cation and a half [MnBr4]2À anion with the MnII atom lying on a twofold rotation axis. Several crystal structures of compounds with the general formula (QuinH)2[MX4]Á2H2O have been described by Landee et al (2018) (M = Co, Mn, X = Cl; M = Co, Zn, X = Br), Butcher et al (2010) (M = Cu, X = Br), Ye et al (2014) (M = Co, X = Cl), Lynch & McClenaghan (2002) (M = Cu, X = Cl), Slabbert & Rademeyer (2016) (M = Hg, X = Cl; M = Cd, X = Br) and ValdesMartınez et al (2005) (M = Zn, X = Cl). In the crystal structure of the title compound, the anion is linked to the cations by N— HÁ Á ÁBr hydrogen bonds (Table 1, Fig. 2).

Synthesis and crystallization

Data collection Diffractometer Absorption correction

Bruker APEXII CCD diffractometer

Special details