Structural investigation of x,y-bis-(chlorocarbonyl) pyridines derivatives: “strength in diversity”—a disparity of supramolecular packing motifs

Abstract

Solid-state structural studies of three isomeric bis-(chlorocarbonyl) pyridines (the 2,6; 2,5 and 3,5 regiosiomers), indicate that the tape-assembly observed previously in the corresponding 2,6-, some 3,5-diesters and, in the present study, the 3,5-bis-chlorocarbonyl isomer is perturbed by the presence of chlorine-mediated interactions in the 2,6-and 2,5-bis acid chlorides