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4-Nitro­benzoic acid–N-(pyrimidin-2-yl)aniline (1/1)

机译:4-硝基苯甲酸-N-(嘧啶-2-基)苯胺(1/1)

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摘要

Four independent mol­ecules comprise the asymmetric unit of the title co-crystal, C10H9N3·C7H5NO4, two for each component. Small conformational differences are noted for the benzoic acid derivatives, notably in the twists of the carb­oxy­lic acid residue out of the plane of the benzene ring to which it is connected [torsion angles = 167.62 (17) and 174.54 (17)°]. In the aniline derivative, the major difference is observed in the dihedral angles formed between the CN3 and phenyl least-squares planes [1.51 (5) and 6.25 (6)°]. Pairs of mol­ecules associate via O—H⋯N and N—H⋯O hydrogen bonds leading to eight-membered {⋯HOCO⋯HNCN} hetero-synthons. The two-mol­ecule aggregates are consolidated in the crystal structure by C—H⋯O(nitro) and π–π inter­actions [shortest centroid–centroid distance between benzene rings = 3.6242 (10) Å].
机译:四个独立的分子组成标题共晶体C10H9N3·C7H5NO4的不对称单元,每个组分两个。对于苯甲酸衍生物,构象差异很小,特别是在羰基氧残基从与之相连的苯环平面外的扭曲中(扭角= 167.62(17)和174.54(17)°)。在苯胺衍生物中,在CN3和苯基最小二乘法平面[1.51(5)和6.25(6)°]之间形成的二面角观察到了主要差异。成对的分子通过OHN和NHO氢键缔合,形成八元{⋯HOCO⋯HNCN}杂合子。两分子聚集体通过CH⋯O(硝基)和π-π相互作用[苯环之间的最短质心-质心距离= 3.6242(10)]固结在晶体结构中。

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