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4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 2,4,6-trimethyl-benzene-sulfonate monohydrate.

ABSTRACT: In the crystal structure of the title organic salt, C(16)H(19)N(2) (+)·C(9)H(11)O(3)S(-)·H(2)O, the cations pack head-to-tail within a sheet and are aligned in opposite directions in neighboring sheets. The benzene ring of the anion makes an angle of 76.99 (6)° with the plane of the cationic chromophore. The cations are situated in the ab plane, whereas the benzene rings of the anions lie in the ac plane.

SUBMITTER: Li Y

PROVIDER: S-EPMC3099972 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 2-amino-3,5-dimethyl-benzene-sulfonate monohydrate.

Project description:In the crystal structure of the title compound, C(16)H(19)N(2) (+)·C(8)H(10)NO(3)S(-)·H(2)O, the cations and anions are linked by O-H?O and N-H?O hydrogen bonds, forming alternating layers parallel to the ac plane. An intra-molecular N-H?O hydrogen bond occurs in the anion. The crystal structure is further stabilized by ?-? inter-actions, with centroid-centroid distances of 3.7240?(9) and 3.6803?(8)?Å.

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4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 4-nitro-benzene-sulfonate.

Project description:The asymmetric unit of the title salt, C(16)H(19)N(2) (+). C(6)H(4)NO(5)S(-), consists of two cations and two anions. The crystal structure is stabilized by π-π inter-actions between the pyridyl and phenyl rings of the cations, with a centroid-centroid distance of 3.7323 (6) Å.

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2-[(E)-2-(4-Ethoxy-phen-yl)ethen-yl]-1-methyl-pyridinium 4-bromo-benzene-sulfonate monohydrate.

Project description:In the title compound, C(16)H(18)NO(+)·C(6)H(4)BrO(3)S(-)·H(2)O, the cation exists in an E configuration with respect to the ethenyl bond and is slightly twisted with a dihedral angle of 8.5?(2)° between pyridinium and benzene rings. In the crystal, the cations are arranged in layers parallel to (100), with ?-? inter-actions between pyridinium and benzene rings [centroid-centroid distances = 3.651?(3) and 3.613?(3)?Å]. The anions and water mol-ecules are located between the cationic layers. The ions and water mol-ecules are linked into a three-dimensional framework by O-H?O and C-H?O hydrogen bonds.

| S-EPMC2979781 | biostudies-literature

2-[(E)-2-(4-Eth-oxy-phen-yl)ethen-yl]-1-methyl-pyridinium 4-chloro-benzene-sulfonate monohydrate.

Project description:In the title compound, C(16)H(18)NO(+)·C(6)H(4)ClO(3)S(-)·H(2)O, the cation exists in an E configuration with respect to the ethenyl bond and is slightly twisted with a dihedral angle of 9.85?(5)° between the pyridinium and the benzene rings. The anion is inclined to the cation with the dihedral angles between the benzene ring of the anion and the pyridinium and benzene rings of the cation of 78.33?(6) and 68.73?(6)°, respectively. In the crystal, the cations and anions are arranged alternately into head-to-head ribbons along the c axis, with the cationic ribbons stacked along the b axis. The crystal is consolidated by O-H?O hydrogen bonds, weak C-H?O and C-H?? inter-actions. ?-? inter-actions with centroid-centroid distances of 3.6111?(7) and 3.6466?(7)?Å are also observed.

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4-{2-[4-(Dimethyl-amino)-phen-yl]ethen-yl}-1-methyl-pyridinium 3,5-dicarb-oxy-benzene-sulfonate methanol monosolvate.

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| S-EPMC3274978 | biostudies-literature

1-Methyl-4-[(E)-2-(3-hy-droxy-4-meth-oxy-phen-yl)ethen-yl]pyridinium 4-bromo-benzene-sulfonate monohydrate.

Project description:In the title hydrated salt, C15H16NO2 (+)·C6H4BrO3S(-)·H2O, the cation exists in an E conformation with respect to the ethenyl bond and is almost planar, with a dihedral angle of 2.62?(12)° between the planes of the pyridinium and benzene rings. The meth-oxy substituent deviates slightly from the plane of its attached benzene ring [Cmeth-yl-O-C-C torsion angle = -11.6?(6)°]. In the crystal, the cations, anion and water mol-ecules are linked together into chains along [010] by O-H?O hydrogen bonds and weak C-H?O inter-actions. There is a short Br?O contact [3.029?(2)?Å]. The crystal structure also features C-H?? inter-actions involving the benzene ring of the anion.

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2-[(E)-2-(4-Chloro-phen-yl)ethen-yl]-1-methyl-pyridinium 4-methoxy-benzene-sulfonate.

Project description:In the asymmetric unit of the title salt, C(14)H(13)ClN(+)·C(7)H(7)O(4)S(-), there are two crystallographically independent mol-ecules for each component. Each cation adopts an E configuration with respect to the C=C bond and is slightly twisted; the dihedral angle between the pyridinium and benzene rings is 6.53?(7)° for one mol-ecule and 5.30?(7)° for the other. The meth-oxy groups in the anion mol-ecules are each twisted from the mean plane of benzene ring with torsion angles of 16.38?(19) and 4.32?(19)°. In the crystal structure, the cations are stacked in an anti-parallel manner along the a axis and the anions are linked together by C-H?O inter-actions into a layer parallel to (001). The anion layers are further linked to adjacent cations by C-H?O inter-actions. C-H?? inter-actions involving the benzene rings of both ions are also observed.

| S-EPMC2969195 | biostudies-literature

2-[(E)-2-(4-Chloro-phen-yl)ethen-yl]-1-methyl-pyridinium 4-chloro-benzene-sulfonate.

Project description:In the title salt, C(14)H(13)ClN(+)·C(6)H(4)ClO(3)S(-), the cation exists in an E configuration with respect to the ethynyl bond and is approximately planar, with a dihedral angle of 3.4?(2)° between the pyridinium and benzene rings. The anion is approximately perpendicular to the cation plane, the benzene ring of the anion making dihedral angles of 89.4?(2) and 89.9?(2)°, respectively, with the pyridinium and benzene rings of the cation. In the crystal structure, the cations are linked into a chain along the c axis by C-H?Cl inter-actions. The anions are linked to the adjacent cation chains by C-H?O and C-H?Cl inter-actions, forming a two-dimensional network parallel to the bc plane. The crystal structure is further stabilized by C-H?? inter-actions. A ?-? inter-action is also observed between the pyridinium ring and the benzene ring of the cation with a centroid-centroid distance of 3.668?(3)?Å.

| S-EPMC2969486 | biostudies-literature

(E)-2-[4-(Dimethyl-amino)-styr-yl]-1-methyl-pyridinium 4-methyl-benzene-sulfonate monohydrate.

Project description:The cation of the title compound, C(16)H(19)N(2) (+)·C(7)H(7)O(3)S(-)·H(2)O, exists in the E configuration with respect to the C=C double bond and is essentially planar, the dihedral angle between the pyridinium and benzene rings being 3.55?(13)°. In the crystal, ?-conjugated planes of cations and anions are inclined to each other at 84.30?(11)°. The crystal structure is stabilized by O-H?O hydrogen bonds and weak C-H?O inter-actions, which link the cations, anions and water mol-ecules into chains along the b axis. These chains are stacked along the a axis by ?-? inter-actions with centroid-centroid distances of 3.6032?(16) and 3.6462?(16)?Å.

| S-EPMC3007387 | biostudies-literature

2-[(E)-4-(Dimethyl-amino)-styr-yl]-1-methyl-pyridinium 4-chloro-benzene-sulfonate monohydrate.

Project description:In the title hydrated mol-ecular salt, C(16)H(19)N(2) (+)·C(6)H(4)ClO(3)S(-)·H(2)O, the 2-[4-(dimethyl-amino)-styr-yl]-1-methyl-pyridinium cation exists in an E configuration with respect to the C=C bond and is slightly twisted, with the dihedral angle between the pyridinium and benzene rings being 9.33?(10)°. In the crystal structure, the packing is stabilized by O-H?O hydrogen bonds and weak C-H?O inter-actions, which link the cations, anions and water mol-ecules into chains propagating in [010]. These chains are stacked along the a axis by ?-? inter-actions, with centroid-to-centroid distances of 3.6429?(12) and 3.6879?(12)?Å; weak C-H?? inter-actions are also observed.

| S-EPMC3009047 | biostudies-literature

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