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Structures of two (E)-3-substituted cinnamoylbenzotriazole 1-oxides

机译:两个(E)-3-取代的肉桂酰基苯并三唑1-氧化物的结构

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The molecule of (E)-3-(3-MeOC _6H _4CH=CHCO)- benzotriazole 1-oxide, 2, has a very near planar structure, while the 2-nitrophenyl ring is rotated out of the plane of the remaining atoms in (E)-3-(2-O _2NC _6H _4CH=CHCO)-benzotriazole 1-oxide, 1. The nitrogen oxide bond lengths in 1 and 2 are 1.258 (6) and 1.2683 (15) ?, respectively, and are in the region found for related compounds. There are no strong intermolecular hydrogen-bonds in either compound, instead there are weak C-H...O intermolecular hydrogen-bonds and π...π stacking interactions in 1, and C-H...O, C-H...π, and π...π stacking interactions in 2. Different three-dimensional arrays are generated in each case. Compound 1 crystallises in the orthorhombic space group Pna2 _1, with a = 25.061 (2) ?, b = 3.6997 (2) ?, c = 14.2623 (12) ? and Z = 4. Compound 2 crystallises in the triclinic space group P-1, with a = 5.7297 (3) ?, b = 10.8440 (6) ?, c = 11.4965 (6) ?, α = 89.689 (3)°, β = 76.019 (3)°, γ = 75.047 (3)°, Z = 2.
机译:(E)-3-(3-MeOC _6H _4CH = CHCO)-苯并三唑1-氧化物2的分子具有非常接近的平面结构,而2-硝基苯环则从其中的其余原子平面旋转出来(E)-3-(2-O _2NC _6H _4CH = CHCO)-苯并三唑1-氧化物1。1和2中的氮氧化物键长分别为1.258(6)和1.2683(15)?,且在找到相关化合物的区域。在这两种化合物中都没有强的分子间氢键,相反,CH ... O,CH ...π和CH中的弱CH ... O分子间氢键和π...π堆积相互作用。在2中的π...π堆积相互作用。在每种情况下都会生成不同的三维数组。化合物1在正交空间群Pna2_1中结晶,其中a = 25.061(2)δ,b = 3.6997(2)δ,c = 14.2623(12)δ。化合物2在三斜晶空间群P-1中结晶,a = 5.7297(3)θ,b = 10.8440(6)θ,c = 11.4965(6)θ,α= 89.689(3)°,且Z = 4。 β= 76.019(3)°,γ= 75.047(3)°,Z = 2。

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