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A new crystal of(E)-2-(2,4-dichlorophenoxy)-1-(5,5-dimethyl-2-oxido-1,3,2-dioxaphosphinan-2-yl)vinyl 2-(2,4-dichlorophenoxy)acetate has been determined by single-crystal X-ray diffraction. The compound crystallizes in triclinic, space group P1 with a = 7.9393(17), b = 11.974(3) ?, c = 13.532(3) ?, α = 90.937(4), β = 101.998(3), γ = 101.363(4)°, V = 1231.5(5) ?3, Dc = 1.500 Mg/m3, Z = 2, F(000) = 568 and μ = 0.585 mm~(-1). The molecular packing in the crystal is the result of C(10)–H(10)···O(5) hydrogen bond, as well as weak π-π stacking interactions. The herbicidal activity results indicated that the title compound 3 showed 80~100% inhibitory activities against all of the tested weeds at a dosage of 150 g×ai/ha.
A new crystal of (E) -2- (2,4-dichlorophenoxy) -1- (2,4-dichlorophenoxy) -1- -dichlorophenoxy) acetate has been determined by single-crystal X-ray diffraction. The compound crystallizes in triclinic space group P1 with a = 7.9393 (17), b = 11.974 (3) = 90.937 (4) β = 101.998 (3) γ = 101.363 (4) ° V = 1231.5 (5) Dc = 1.500 Mg / m3 Z = 2 F000 = 568 and μ = 0.585 mm -1. The molecular packing in the crystal is the result of C (10) -H (10) ··· O (5) hydrogen bond, as well as weak π-π stacking interactions. The herbicidal activity results indicated that the title compound 3 showed 80-100% inhibitory activities against all of the tested weeds at a dosage of 150 g × ai / ha.