Abstract
The partner molecules of N,N-dimethylaniline–1,2,4,5-tetracyanobenzene (1/1), C8H11N·C10H2N4, are stacked alternately in infinite columns. The N atom of the N,N-dimethylaniline molecule has a partially tetrahedral character and the distance between neighbouring molecules in the stack is relatively short on the side where the lone-pair electrons of this atom are located. Molecular-packing analysis of this and three other complexes of N,N-dimethylaniline shows that there is a close relationship between the strength of the intermolecular interaction on this side and the tetrahedral character of the N atom.
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