X-ray powder diffraction data for the second and third polymorphs of 1-methylhydantoin. Issue 2 (June 2022)

• Record Type: Journal Article
• Authors: Delgado, Gerzon E.; Chacón, Cecilia; Marroquin, Gustavo; Cisterna, Jonathan; Brito, Iván
• Is Part Of: Powder diffraction. Volume 37:Issue 2(2022)
• Page Start: 108
• Page End: 114
• Publication Date: 2022-06
• Subjects: 1-methylhydantoin -- polymorphism -- X-ray powder diffraction; Powder metallurgy -- Periodicals; Materials -- Analysis -- Periodicals; 620.1127
• DOI: 10.1017/S0885715622000136
• Languages: English
• ISSNs: 0885-7156

Abstract

Abstract : X-ray powder diffraction data for the two new polymorphs of 1-methylhydantoin, C4 H6 N2 O2, are reported. The polymorph II (MH-II ) crystallizes in the orthorhombic system with space group Pna 21 [ a = 19.0323(7) Å, b = 3.91269(8) Å, c = 6.8311(7) Å, Z ′ = 1, Z = 4, unit cell volume V = 508.70(3) Å 3 . Polymorph III (MH-III ) crystallizes in the orthorhombic system with space group P 21 21 21 [ a = a = 7.82427(5), b = 9.8230(5), c = 20.2951(4), Z ′ = 3, Z = 12, unit cell volume V = 1563.5(1) Å 3 ]. All measured lines, in each case, were indexed and are consistent with the space group.