Novel peroxosolvates of tetraalkylammonium halides: the first case of layers containing hydrogen-bonded peroxide molecules†
Abstract
Novel peroxosolvates of tetraalkylammonium halides Et4N+Cl−·2(H2O2) (1), Et4N+Br−·2(H2O2) (2), Me3(ClCH2CH2)N+Cl−·H2O2 (3) and Me3PhN+Cl−·H2O2 (4) were prepared from concentrated hydrogen peroxide and the corresponding structures were determined by X-ray crystallography. Structures 1 and 2 are formed by globose Et4N+ cations and are the first examples of layers containing H-bonded peroxide molecules. By contrast, 3 and 4 are formed by sufficiently aspherical Me3(ClCH2CH2)N+ and Me3PhN+ units and contain infinitely long hydrogen-bonded peroxide–halide chains.