title: Crystal structure of (4-meth-oxy-phen-yl)[(4-meth-oxy-phen-yl)phospho-nato]dioxidophosphate(1-) 2-amino-6-benzyl-3-eth-oxy-carbon-yl-4,5,6,7-tetra-hydro-thieno[2,3-c]pyridin-6-ium.
abstract: The asymmetric unit of the title mol-ecular salt, C17H21N2O2S(+)·C14H15O7P2 (-), comprises two cations and two anions. Each cation features an intra-molecular N-H⋯O hydrogen bond, which closes an S(6) ring; in each case the hydro-pyridine ring adopts a half-chair conformation. In the anions, the dihedral angles between the aromatic rings are 64.1 (2) and 54.9 (2)°. In each case, the diphosphate groups are close to eclipsed [C-P⋯P-C pseudo-torsion angles = 11.6 (2) and -19.3 (2)°]. One of the meth-oxy groups in each anion is disordered over two orientations in a 0.539 (18):0.461 (18) ratio in one anion and 0.82 (2):0.18 (2) in the other. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the components into [100] chains. Numerous C-H⋯O inter-actions cross-link the chains into a three-dimensional network.
authors: Department of Chemistry, Tulane University, New Orleans, LA 70118, USA.
authors: Joel T
authors: JT
authors: Mague
authors: Chemistry and Environmental Division, Manchester Metropolitan University, Manchester, M1 5GD, England; Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors: Shaaban K
authors: SK
authors: Mohamed
authors: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors: Mehmet
authors: M
authors: Akkurt
authors: Chemistry Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
authors: Sabry H H
authors: SH
authors: Younes
authors: Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt.
authors: Essam K
authors: EK
authors: Ahmed
authors: Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.
authors: Mustafa R
authors: MR
authors: Albayati
keywords: Lawson reagent; crystal structure; hydrogen bonding; mol­ecular salt; thieno­pyridines