A PYRANOPYRIMIDINE DERIVATIVE: SYNTHESIS, CHARACTERIZATION, HIRSHFELD SURFACE ANALYSIS AND COMPUTATIONAL INVESTIGATION

A pyranopyrimidine derivative named as 10-amino-7-(2,4-diamino-6-oxidopyrimidin-1-ium-5-yl)-7H-benzo[7,8]chromeno[2,3-d]pyrimidin-9-ium-8-olate dimethylformamide acetic acid hydrate (ADCP) is synthesized by the reaction of 2-hydroxy-1-naphthaldehyde and 2,6-diaminopyrimidin-4-ol in the presence of ethanol and dimethylformamide. The synthesized compound is characterized by single crystal X-ray diffraction technique. The molecule exists as a doubly zwitterion ion and the supramolecular assembly is stabilized by N-H center dot center dot center dot N, N-H center dot center dot center dot O and O-H center dot center dot center dot N bonding interactions. These intermolecular interactions are further investigated and justified by Hirshfeld Surface Analysis. Void analysis is carried out in order to check the response of the crystal to an applied stress. Quantum chemical calculations are carried out at B3LYP/6-31G(d,p) electron density model for finding the interaction energies between molecular pairs.