title: Crystal structure of ethyl 2-{2-[(1Z)-1-hy-droxy-3-(4-nitro-phen-yl)-3-oxoprop-1-en-1-yl]phen-oxy}acetate.
abstract: The title compound, C19H17NO7, crystallized in a ratio of about 6:4 of the two possible keto-enol forms. This was observed as disorder over the central C3H2O2 unit. The dihedral angle between the rings is 8.2 (2)°.The mol-ecules pack by C-H⋯O interactions in a layered fashion parallel to (-104).
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 Chemistry, Tulane University, New Orleans, LA 70118, USA.
authors: Joel T
authors: JT
authors: Mague
authors: Department of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey.
authors: Mehmet
authors: M
authors: Akkurt
authors: Department of Chemistry, Faculty of Science, Sohag University, 82524 Sohag, Egypt.
authors: Eman A
authors: EA
authors: Ahmed
authors: Kirkuk University, College of Science, Department of Chemistry, Kirkuk, Iraq.
authors: Mustafa R
authors: MR
authors: Albayati
keywords: aryl­oxyphen­oxy compounds; crystal structure; herbicides