1-PHENYL-1H-PYRROLE-2,5-DICARBOXYLIC ACID-DERIVATIVES AS VERSATILE HYDROGEN-BONDING MOTIFS FOR THE FORMATION OF ONE-DIMENSIONAL, 2-DIMENSIONAL AND 3-DIMENSIONAL NETWORKS IN THE SOLID-STATE

A series of 1-phenyl-1H-pyrrole-2,5-dicarboxylic acid derivatives were prepared and their solid state structures were investigated. Small st ructural changes in the monomeric subunit can lead to the formation of one-dimensional linear ribbons, two-dimensional sheets and three-dime nsional networks. In each case a consistent feature of the solid state structures is the formation of-bidentate hydrogen bonded contacts bet ween the 2,5-carboxylic acid groups on adjacent pyrrole subunits, The exact nature of the crystal packing is strongly influenced by the subs titution on the phenyl ring.