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2-Cyanoanilinium nitrate
Li-Jing Cui,Xiao-Chun Wen
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808023313
Abstract: In the title compound, C7H7N2+·NO3 , all atoms of the cation, with the exception of two H atoms of the NH3 group, lie on a mirror plane, while the anion lies across this plane with the N and one O atom on the mirror plane. In the crystal structure, the organic cations and NO3 anions are linked by N—H...N and N—H...O hydrogen bonds, forming a two-dimensional network parallel to (100).
3-Cyanoanilinium hydrogen oxalate hemihydrate  [cached]
Xin-Yuan Chen
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812019824
Abstract: In the title hydrated molecular salt, C7H7N2+·C2HO4 ·0.5H2O, contains a 3-cyanoanilinium cation, a hydrogen oxalate anion and half a water molecule in an asymmetric unit. The dihedral angle between the CO2(H) and CO2 planes of the hydrogen oxalate ion is 7.96 (1)°. In the crystal, the components are linked by N—H...O and O—H...O hydrogen bonds, forming a layer lying parallel to the ac plane.
3-Cyanoanilinium iodide monohydrate
Jing Dai,Xin-Yuan Chen
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810048294
Abstract: In the crystal structure of the title compound, C7H7N2+·I ·H2O, [C7H7N2+]n chains extending along the a-axis direction are linked via N—H...N hydrogen bonds. The cations are further connected to the anions by N—H...I, N—H...O and O—H...I hydrogen bonds, leading to the formation of a sheet parallel to the ac plane. π–π interactions [centroid–centroid distance = 3.8378 (7) ] link the sheets into a three-dimensional network.
3-Methylanilinium nitrate  [cached]
Melanie Rademeyer,David C. Liles
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810020738
Abstract: In the title compound, C7H10N+·NO3 , the 3-methylanilinium cations interact with the nitrate anions through strong bifurcated N+—H...(O,O) hydrogen bonds, forming a two-dimensional hydrogen-bonded network.
3-Carboxypyridinium nitrate
Khalid Al-Farhan,Miftahul Khair,Mohamed Ghazzali
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812028565
Abstract: In the crystal structure of the title compound, C6H6NO2+·NO3 , the protonated cations are linked by N—H...O hydrogen bonds into chains along the b axis. The cations and anions are also linked by N—H...O and O—H...O hydrogen bonds. C—H...O interactions also occur. In the cation, the ring makes a dihedral angle of 10.1 (3)° with the carboxylate group.
3-Cyanoanilinium bromide
Bo Wang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809034941
Abstract: In the cation of the title compound, C7H7N2+·Br , all non-H atoms are essentially coplanar [r.m.s. deviation = 0.010 (5) ]. The compound is isomorphous with the chloride analogue. In the crystal, the cations and anions are connected by N—H...Br hydrogen bonds.
3-Cyanoanilinium chloride
Xiao-Chun Wen
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808020485
Abstract: In the title salt, C7H7N2+·Cl , all non-H atoms of the cation are essentially coplanar (r.m.s. deviation = 0.005 ). In the crystal structure, the organic cations and chloride ions are linked to form a two-dimensional network parallel to the (001) plane by N—H...Cl hydrogen bonds.
3,5-Dicarboxyanilinium nitrate dihydrate
Wen-Xian Liang,Yun-Ti Zhu
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810005362
Abstract: In the crystal of the title compound, C8H8NO4+·NO3 ·2H2O, the 5-ammonioisophthalic acid cations, the nitrate anions and the water molecules are linked by N—H...O, O—H...O and C—H ...O hydrogen bonds into a three-dimensional network. The structure is further stabilized by aromatic π–π stacking interactions, with centroid–centroid separations of 3.827 (2) .
4-(3-Carboxyphenyl)pyridinium nitrate
Long Tang,Ya-Pan Wu,Feng Fu,Zhu-Lian Zhang
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812013918
Abstract: In the title salt, C12H10NO2+·NO3 , the dihedral angle between the pyridine ring and the benzene ring of the 4-(3-carboxyphenyl)pyridinium cation is 30.14 (2)°. Inversion-related pairs of cations are linked into dimers by pairs of O—H...O hydrogen bonds. Pairs of dimers are linked by N—H...O and C—H...O hydrogen bonds involving nitrate anions as acceptors, generating supramolecular chains along the diagonal of the bc plane.
4-Cyanoanilinium iodide
Joel T. Mague,David J. Vumbaco,Michael N. Kammer,Lynn V. Koplitz
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812033466
Abstract: In the title compound, C7H7N2+·I , the cation is located on a site of 4mm symmetry and is thus disordered about the fourfold axis so that there are two perpendicular orientations of the six-membered ring and four rotational orientations of the {–NH3+} group. In the crystal, there are two layers perpendicular to the c axis, each containing iodide ions and the {–NH3+} portions of the cations, with the remainder of the cations extending outwards from these layers.
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