Synthesis, crystal structure, spectroscopic characterization, Hirshfeld surface analysis, and DFT calculations of 1,4-dimethyl-2-oxo-pyrimido[1,2-a]benzimidazole hydrate
Keywords: Pyrimido[1,2-a]benzimidazole; Crystal structure; Hydrogen bond; Ï-stacking; Hirshfeld surface; DFT;