1282607-82-2Relevant academic research and scientific papers
2-Amino-4-(piperidin-1-yl)-11H-pyrimido[4,5-b][1,5]benzodiazepin-6-ium chloride monohydrate and 2-amino-4-[methyl(2-methyl-phenyl)amino]-11H- pyrimido[4,5-b][1,5]benzodiazepin-6-ium chloride-benzene-1,2-diamine (1/1): Complex sheets generated by multiple hydrogen bonds
Quiroga, Jairo,Trilleras, Jorge,Cobo, Justo,Glidewell, Christopher
, p. o154-o158 (2010)
In each of 2-amino-4-(piperidin-1-yl)-11H-pyrimido[4,5-b][1,5] benzodiazepin-6-ium chloride monohydrate, C16H19N 6 +·Cl-·H2O, (I), and 2-amino-4-[methyl(2-methyl-phenyl)amino]-11H-pyrimido[4,5-b][1,5] benzodiazepin-6-ium chloride-ben-zene-1,2-diamine (1/1), C19H 19N6 +·Cl-·C 6H8N2, (II), the seven-membered ring in the cation adopts a boat conformation. The pyrimidine ring in (II) adopts a twist-boat conformation, but the corresponding ring in (I) is essentially planar. The amino groups of the benzene-1,2-diamine component of (II) are both pyramidal. The independent components of (I) are linked into complex sheets by a combination of N - H...O, N - H...N, N - H...Cl and O - H...Cl hydrogen bonds. In the crystal structure of (II), one N - H...N hydrogen bond and six independent N - H...Cl hydrogen bonds combine to link the components into complex sheets.
