Abstract

The title compound corresponds to an enaminone E isomer in the solid state. X-ray structure shows that this crystallizes in the orthorrombic system, with space group Pna2(1) with 2 independent molecules in the asymmetric unit in a non-centrosymmetric setting. The CNNC unit forms dihedral angles of 5.9(3)/2.1(3); 19.7(3)/17.6(3)degrees with the pyrrole and phenol rings for molecules A and B respectively. The main differences between both molecules is the dihedral torsion between rings, their mean planes form dihedral angles of 25.45(15) and 15.38(15)degrees for the molecules A and B. In the asymmetric unit, molecules are linked by two weak N - H center dot center dot center dot O hydrogen bonds with set graph-motif R-2(2)(16).The crystal structure of title compound generates a two dimensional supramolecular network lying parallel (110) with hydrogen bonds interactions between O - H center dot center dot center dot O and N - H center dot center dot center dot O along to [100] and [001] direction with graph set motifs R-1(2)(5), R-2(2)(10), C-1(1)(8) and C-1(1)(12). pi-pi stacking interactions are not observed. Hirshfeld surface analysis were used to verify the contributions of the different intermolecular interactions. Both molecules are essentially overlaid between them with RMSD = 0.0574; max D = 0.1211 angstrom considering inversion and flexibility.