Abstract
The title compound, C(9)H(12)NO(+)·Br(-)·CBr(4), consists of one 4-formyl-N,N-di-methyl-benzenaminium bromide and a tetra-bromo-methane mol-ecule. In the crystal, the bromide ions link 4-formyl-N,N-di-methyl-benzenaminium moieties through inter-molecular C-H⋯Br and N-H⋯Br hydrogen bonds, while inter-molecular C-H⋯O hydrogen bonds link 4-formyl-N,N-di-methyl-benzenaminium cations, enclosing R (2) (2)(18) ring motifs, into a di-periodic network structure. The tetra-bromo-methane mol-ecules fill the spaces between the layers. Neither π-π nor C-H⋯π(ring) inter-actions are observed. A Hirshfeld surface analysis of the crystal structure indicates that the most abundant contacts contributing to the crystal packing are from H⋯Br/Br⋯H (56.0%), Br⋯Br (12.1%), H⋯O/O⋯H (9.7%) and H⋯H (9.5%) inter-actions.