Abstract
In the title pyridine herbicide {systematic name: 2-[(4-amino-3,5-di-chloro-6-fluoro-pyridin-2-yl)-oxy]acetic acid}, C7H5Cl2FN2O3, the mean plane of the carb-oxy-lic acid substituent and the pyridyl ring plane subtend a dihedral angle of 77.5 (1)°. In the crystal, pairs of O-H⋯O hydrogen bonds form inversion dimers with R22(8) ring motifs. These are extended into chains along [011] by N-H⋯F hydrogen bonds. In addition, inter-molecular N-H⋯O hydrogen bonds and weak π-π inter-actions [ring centroid separation = 3.4602 (9) Å] connect these chains into a three-dimensional network.
Highlights
In the title pyridine herbicide {systematic name: 2-[(4-amino-3,5-dichloro-6fluoropyridin-2-yl)oxy]acetic acid}, C7H5Cl2FN2O3, the mean plane of the carboxylic acid substituent and the pyridyl ring plane subtend a dihedral angle of 77.5 (1)
Fluroxypyr belongs to the pyridine family of herbicides
It is widely used on cereal crops, olive trees and fallow croplands to control broad-leaf weeds (Moreno-Castilla et al, 2012; Wang et al, 2011). Pyridine herbicides such as fluroxypyr are effective and popular chemicals for post-emergence broad-leaf weed control, in turf during cool seasons
Summary
Fluroxypyr belongs to the pyridine family of herbicides It is widely used on cereal crops, olive trees and fallow croplands to control broad-leaf weeds (Moreno-Castilla et al, 2012; Wang et al, 2011). Pyridine herbicides such as fluroxypyr are effective and popular chemicals for post-emergence broad-leaf weed control, in turf during cool seasons. The efficacy of this herbicide may be affected by environmental conditions including the relative humidity, temperature and soil moisture. Its crystal structure had not been reported and we describe it
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