2-Carboxylatopyridinium–4-nitrophenol (1/1)
نویسندگان
چکیده
In the title 1:1 adduct, C6H5NO3·C6H5NO2, both mol-ecules are almost planar (r.m.s. deviations for the non-H atoms = 0.027 and 0.023 Å for 4-nitro-phenol and 2-carboxyl-atopyridinium, respectively). The pyridine mol-ecule crystallizes as a zwitterion (nominal proton transfer from the carb-oxy-lic acid group to the N atom in the ring). In the crystal, inversion dimers of the zwitterions linked by pairs of N-H⋯O hydrogen bonds generate R 2 (2)(10) loops; two 4-nitro-phenol mol-ecules link to the dimer by O-H⋯O hydrogen bonds, generating a four-molecule aggregate. These are linked by C-H⋯O inter-actions, forming a three-dimensional network.
منابع مشابه
Non-merohedrally twinned hexamethylenetetramine–4-nitrophenol–water (1/2/1), triclinic modification
The asymmetric unit of the title cocrystal, C(6)H(12)N(4)·2C(6)H(5)NO(3)·H(2)O, contains four formula units, which are linked by O-H⋯O and O-H⋯N hydrogen bonds into chains in the crystal. The crystal studied was a non-merohedral twin, with a minor twin component of 19%.
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In the title adduct, C(7)H(7)NO(3) (.)C(7)H(10)N(2), the dihedral angle betwen the benzene ring and pyridine rings is 9.60 (8)° while the nitro group attached to the benzene ring makes a dihedral angle of 21.76 (13)°. The hydroxyl O atom deviates by 0.0247 (15) Å from the plane of the benzene ring. The crystal packing features O-H⋯N hydrogen bonds.
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The title compound, C(2)H(8)N(+)·C(6)H(4)NO(3) (-)·C(6)H(5)NO(3), was synthesized from dimethyl-amine and 4-nitro-phenol in an overall yield of 85%. The dihdral angles between the nphenyl rings and their attached nitro groups are 5.7 (6) and 2.5 (7)°. In the crystal, there are strong hydrogen bonds between the ammonium group and the nitro-phenol and nitro-phenolate O atoms, and between the nitr...
متن کامل4-Nitrophenol–2,4,6-triamino-1,3,5-triazine–water (2/1/1)
In the title adduct, 2C(6)H(5)NO(3)·C(3)H(6)N(6)·H(2)O, the melamine and the two independent nitrophenol molecules are essentially planar, with maximum deviations of 0.0294 (10), 0.0706 (12) and 0.0742 (12) Å, respectively. In the crystal, N-H⋯N, O-H⋯N, N-H⋯O and O-H⋯O hydrogen bonds link the components into a three-dimensional network. In addition, weak π-π inter-actions [centroid-centroid dis...
متن کامل5-Chloro-2-nitrophenol
The asymmetric unit of the title compound, C(6)H(4)ClNO(3), contains two independent mol-ecules in which the dihedral angles between the benzene ring and the nitro groups are 2.5 (1) and 8.5 (1)°. Intra-molecular O-H⋯O hydrogen bonds involving the hy-droxy and nitro substituents result in the formation of S(6) six-membered rings. In the crystal, O-H⋯O, O-H⋯Cl and C-H⋯O hydrogen bonds together w...
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