2-Amino-4-(piperidin-1-yl)-11<i>H</i>-pyrimido[4,5-<i>b</i>][1,5]benzodiazepin-6-ium chloride monohydrate and 2-amino-4-[methyl(2-methylphenyl)amino]-11<i>H</i>-pyrimido[4,5-<i>b</i>][1,5]benzodiazepin-6-ium chloride–benzene-1,2-diamine (1/1): complex sheets generated by multiple hydrogen bonds
作者:Jairo Quiroga、Jorge Trilleras、Justo Cobo、Christopher Glidewell
DOI:10.1107/s0108270110006967
日期:2010.4.15
In each of 2-amino-4-(piperidin-1-yl)-11H-pyrimido[4,5-b][1,5] benzodiazepin-6-ium chloride monohydrate, C16H19N6+center dot-Cl-center dot H2O, (I), and 2-amino-4-[methyl(2-methylphenyl)amino]11H- pyrimido[4,5-b][1,5] benzodiazepin-6-ium chloride -benzene-1,2- diamine (1/1), C19H19N6+center dot Cl-center dot C6H8N2, (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 center dot center dot center dot O, N-H center dot center dot center dot N, N-H center dot center dot center dot Cl and O-H center dot center dot center dot Cl hydrogen bonds. In the crystal structure of (II), one N-H center dot center dot center dot N hydrogen bond and six independent N-H center dot center dot center dot Cl hydrogen bonds combine to link the components into complex sheets.