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4-tert-Butyl-pyridinium picrate.

ABSTRACT: In the title compound, C(9)H(14)N(+)·C(6)H(2)N(3)O(7) (-), the three nitro groups of the picrate anion are twisted out of the plane of the attached benzene ring; the dihedral angles are 32.8 (2), 10.5 (4) and 12.3 (4)°. The pyridinium cations and picrate anions are linked via bifurcated N-H⋯(O,O) hydrogen bonds. The ionic pairs are linked into a ribbon-like structure along [101] by C-H⋯O hydrogen bonds.

SUBMITTER: Ramesh P

PROVIDER: S-EPMC2983922 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-tert-Butyl-pyridinium triiodide-4-tert-butyl-pyridine (1/1).

Project description:The title compound, C(9)H(14)N(+)·I(3) (-)·C(9)H(13)N, consists of monoprotonated 4-tert-butyl-pyridinium cations and triiodide anions. The triiodide ion has near-symmetric linear geometry, with bond lengths of 2.9105 (4) Å (I-I) and a bond angle of 177.55 (3)° (I-I-I). For this room-temperature structure, the butyl group on the pyridine ring is disordered and has been treated as a rigid rotator, modeled in three separate positions with 1/3, 1/3, 1/3 occupancies. The cations assemble into dimeric forms by way of N-H⋯N hydrogen bonds.

| S-EPMC3051785 | biostudies-literature

4-tert-Butyl-2-(4-tert-butyl-pyridin-2-yl)pyridinium nitrate.

Project description:In the title compound, C(18)H(25)N(2) (+)·NO(3) (-), the dihedral angle between the pyridine rings is 19.06?(10)°. In the crystal, the ions are linked into a three-dimensional network by N-H?O and C-H?O hydrogen-bonding inter-actions.

| S-EPMC3213515 | biostudies-other

4-Amino-pyridinium picrate.

Project description:In the title compound, C(5)H(7)N(2) (+)·C(6)H(2)N(3)O(7) (-), the 4-amino-pyridinium cation is essentially planar (r.m.s. deviation = 0.002?Å). The three nitro groups in the picrate anion are twisted away from the attached benzene ring [dihedral angles = 24.1?(1), 9.3?(3) and 21.4?(1)°]. In the crystal structure, the ions are linked into a three-dimensional network by N-H?O and C-H?O hydrogen bonds.

| S-EPMC2984070 | biostudies-literature

2-Amino-pyridinium picrate.

Project description:In the title compound, C(5)H(7)N(2) (+)·C(6)H(2)N(3)O(7) (-), there are two crystallographically independent cations and anions (A and B) in the asymmetric unit. In both picrate anions, one of the nitro groups lies in the plane of the benzene ring [r.m.s. deviations = 0.014?(2) and 0.014?(2)?Å for anions A and B, respectively] and the other two are twisted away by 39.0?(2) and 18.8?(2)° in A, and 18.2?(1) and 2.5?(2)° in B. In the crystal, the cations and anions are linked by inter-molecular N-H?O and C-H?O hydrogen bonds, forming a two-dimensional network.

| S-EPMC3006739 | biostudies-literature

3-Amino-pyridinium picrate.

Project description:During the formation of the title compound, C(5)H(7)N(2) (+)·C(6)H(2)N(3)O(7) (-), a phenolic proton is transferred to the pyridine N atom. In the crystal structure, the ions are linked by inter-molecular N-H⋯O and N-H⋯(O,O) hydrogen bonds into layers running parallel to (100). These layers are connected by weak π-π stacking inter-actions between symmetry-related pyridine and picric benzene rings with a centroid-centroid distance of 3.758 (2) Å, forming a three-dimensional network.

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1,1'-Methyl-enebis(4-<i>tert</i>-butyl-pyridinium) dichloride hemihydrate.

Project description:The structure of the title hydrated salt, C19H28N2 2+·2Cl-·0.5H2O, at 150 K has monoclinic (C2/c) symmetry. The water mol-ecule is located on a twofold rotation axis.

| S-EPMC9462366 | biostudies-literature

(R)-N-{2-tert-Butyl-2-[(R)-tert-butyl-sulfonamido]ethylidene}-tert-butane-sulfonamide.

Project description:The title compound, C(14)H(30)N(2)O(2)S(2), is the product of the monoaddition reaction of tert-butyl magnesium chloride with bis-[(R)-N-tert-butanesulfinyl]ethanediimine. There are two almost identical mol-ecules in the asymmetric unit, the mol-ecular conformation of which is stabilized by an intra-molecular N-H?N hydrogen bond.

| S-EPMC2959383 | biostudies-literature

Crystal structure of 3-methyl-pyridinium picrate: a triclinic polymorph.

Project description:The title mol-ecular salt, C6H8N(+)·C6H2N3O7 (-) (systematic name: 3-methyl-pyridinium 2,4,6-tri-nitro-phenolate), crystallizes in the triclinic space group P-1. The crystal structure of the monoclinic polymorph (space group P21/n) has been reported [Stilinovic & Kaitner (2011 ▸). Cryst. Growth Des. 11, 4110-4119]. In the crystal, the anion and cation are linked via bifurcated N-H⋯(O,O) hydrogen bonds, enclosing an R 1 (2)(6) graph-set motif. These units are linked via C-H⋯O hydrogen bonds, forming a three-dimensional framework. Within the framework there are π-π inter-actions present, involving inversion-related picrate anions and inversion-related pyridinium cations, with inter-centroid distances of 3.7389 (14) and 3.560 (2) Å, respectively.

| S-EPMC4647397 | biostudies-literature

tert-Butyl-aminium phosphite.

Project description:In the title compound, C(4)H(12)N(+)·H(2)PO(3) (-), the components are linked by inter-molecular N-H?O and O-H?O hydrogen bonds, resulting in a two-dimensional framework.

| S-EPMC2968602 | biostudies-literature

1-(4-tert-Butyl-benz-yl)-2-(4-tert-butyl-phen-yl)-1H-benzimidazole.

Project description:In the mol-ecule of the title compound, C(28)H(32)N(2), the benzimidazole ring system is almost planar [maximum deviation = 0.0221 (15) Å] and forms dihedral angles of 85.86 (4) and 32.09 (6)° with the benzene rings. In the crystal structure, mol-ecules are linked into chains running parallel to the a axis by inter-molecular C-H⋯N hydrogen bonds. The methyl groups of a tert-butyl group are rotationally disordered over two positions with refined site-occupancy factors of 0.636 (4) and 0.364 (4).

| S-EPMC2971974 | biostudies-literature

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