On June 28, 2019, Portalone, Gustavo published an article.Application of 626-48-2 The title of the article was 6-Methyluracil: a redetermination of polymorph (II). And the article contained the following:
6-Methyluracil, C5H6N2O2, exists in two crystalline phases: form (I), monoclinic, space group P21/c [Reck et al. (1988). Acta Crystalline A44, 417-421] and form (II), monoclinic, space group C2/c [Leonidov et al. (1993). Russ. J. Phys. Chem.67, 2220-2223]. The structure of polymorph (II) has been redetermined providing a significant increase in the precision of the derived geometric parameters. In the crystal, mols. form ribbons approx. running parallel to the c-axis direction through N-H···O hydrogen bonds. The radical differences observed between the crystal packing of the two polymorphs may be responsible in form (II) for an increase in the contribution of the polar canonical forms C-(O-)=N-H+ relative to the neutral canonical form C(=O)-N-H induced by hydrogen-bonding interactions. The experimental process involved the reaction of 6-Methylpyrimidine-2,4(1H,3H)-dione(cas: 626-48-2).Application of 626-48-2
The Article related to methyluracil polymorph redetn hydrogen bond crystal structure, Crystallography and Liquid Crystals: Crystallization and Recrystallization, Nucleation, Crystal Growth, Epitaxy, Nonepitaxial Film Deposition and other aspects.Application of 626-48-2
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia