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1-Methyl-3-n-tetra-decyl-imidazolium bromide monohydrate.

ABSTRACT: In the title ionic liquid salt hydrate, C(18)H(35)N(2) (+)·Br(-)·H(2)O, the side chain in the cation has an extended conformation. The crystal structure is stabilized primarily by O-H⋯Br hydrogen bonds. C-H⋯O and C-H⋯Br inter-actions are also present.

SUBMITTER: Chen Y

PROVIDER: S-EPMC2970956 | biostudies-literature |

REPOSITORIES: biostudies-literature

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1-Tetra-decyl-pyridinium bromide monohydrate.

Project description:In the title compound, C(19)H(34)N(+)·Br(-)·H(2)O, the dihedral angle between the trans-planar alkyl side chain and the pyridinium ring is 52.73 (7)°. In the crystal structure, O-H⋯Br, C-H⋯Br and C-H⋯O hydrogen bonds form a network, while the hydro-phobic alkyl chains inter-digitate, forming bilayers.

| S-EPMC2960014 | biostudies-literature

1-Hexadecyl-3-methyl-imidazolium bromide monohydrate.

Project description:In the crystal structure of the title compound, C(20)H(39)N(2) (+)·Br(-)·H(2)O, the 1-hexa-decyl-3-methyl-imidazolium cations are stacked along the b axis, forming channels parallel to [100] which are occupied by the bromide anions and water mol-ecules. The crystal is stabilized by O-H⋯Br, C-H⋯O and C-H⋯Br hydrogen-bonding inter-actions, generating a two-dimensional network.

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2-Hy-droxy-N,N,N-trimethyl-3-tetra-decyl-oxypropan-1-aminium bromide.

Project description:In the crystal structure of the title compound, C(20)H(44)NO(2) (+)·Br(-), the cation and anion are connected via an O-H?Br hydrogen bond, forming an ionic pair. The cation is disordered over two conformations related by a mirror plane, and the anion is situated on a mirror plane so that the asymmetric unit contains half of the ionic pair. The long alkyl chain in the cation adopts an all-trans conformation. The crystal packing exhibits weak inter-molecular C-H?O inter-actions.

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2-(1,2,3,4-Tetra-hydro-1-naphth-yl)imidazolium chloride monohydrate.

Project description:In the title compound, C(13)H(15)N(2) (+)·Cl(-)·H(2)O, the ions and water mol-ecules are -connected by N-H⋯Cl, O-H⋯Cl, NH⋯Cl⋯HO, NH⋯Cl⋯HN and OH⋯Cl⋯HO inter-actions, forming discrete D(2) and D(2) (1)(3) chains, C(2) (1)(6) chains and R(4) (2)(8) rings, leading to a neutral two-dimensional network. The crystal structure is further stabilized by π-π stacking inter-actions [centroid-centroid distance = 3.652 (11) Å].

| S-EPMC3007880 | biostudies-literature

1-(4-Ferrocenylphen-yl)-3-methyl-imidazolium iodide monohydrate.

Project description:In the title compound, [Fe(C(5)H(5))(C(15)H(14)N(2))]I·H(2)O, the benzene and imidazolium rings are twisted by 17.26?(17) and 32.53?(19)°, respectively, with respect to the ?(5)-C(5)H(4) plane of the ferrocenyl unit. The imidazolium ring is rotated by 48.81?(17)° with respect to the benzene ring. The packing is dominated by layers established by O-H?I, C-H?I and C-H?O contacts and propagating along the bc plane.

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Bis(tetra-methyl-ammonium) oxalate monohydrate.

Project description:In the crystal structure of the title hydrated salt, 2C(4)H(12)N(+)·C(2)O(4) (2-)·H(2)O, the two independent cations, the anion and the water mol-ecule all lie on special positions of m site symmetry. In both cations, the mirror plane passes through the nitrogen atom and two methyl groups; in the anion, the mirror plane passes through two carbon and two oxygen atoms. The anions and water mol-ecules inter-act by O-H?O hydrogen bonding, forming a chain running along the b axis.

| S-EPMC2971246 | biostudies-literature

1,3-Bis[(6-methyl-2-pyrid-yl)meth-yl]imidazolium bromide.

Project description:The title compound, C(17)H(19)N(4) (+)·Br(-), is built up from 1,3-bis-[(6-methyl-2-pyridin-yl)meth-yl]imidazolium cations and bromide anions. Each of two 6-methyl-2-pyridyl rings is rotated out of the imidazole plane, making dihedral angles of 79.90?(9) and 86.40?(9)°. The packing is consolidated by aromatic ?-? inter-actions between the pyridine rings of neighbouring mol-ecules [centroid-centroid distance = 3.554?(2)?Å] and by weak C-H?N and C-H?Br hydrogen bonds.

| S-EPMC2968481 | biostudies-literature

4-Hy-droxy-1,2,6-tri-methyl-pyridinium bromide monohydrate.

Project description:The title salt, C8H12NO(+)·Br(-)·H2O, is isomorphous with the chloride analogue [Seethalakshmi et al. (2013). Acta Cryst. E69, o835-o836]. In the solid state, the cations, anions and water mol-ecules are inter-linked by a network of O-H⋯O, O-H⋯Br and C-H⋯Br inter-actions. The water mol-ecule makes two O-H⋯Br hydrogen bonds, generating [010] zigzag chains of alternating water mol-ecules and bromide anions. The cation is involved in two inter-molecular C-H⋯Cl inter-actions in the chloride salt, whereas three inter-molecular C-H⋯Br inter-actions are observed in the title bromide salt. This additional inter-molecular C-H⋯Br inter-action links the adjacent water and bromide zigzag chains via cationic mol-ecules. In addition, weak π-π stacking inter-actions are observed between pyridinium rings [centroid-centroid distance = 3.5664 (13) Å].

| S-EPMC3685086 | biostudies-literature

Imidazole-imidazolium picrate monohydrate.

Project description:The asymmetric unit of the title compound, C(3)H(5)N(2) (+)·C(6)H(2)N(3)O(7) (-)·C(3)H(4)N(2)·H(2)O or H(C(3)H(4)N(2))(2) (+)·C(6)H(2)N(3)O(7) (-)·H(2)O, contains a diimidazolium cationic unit, one picrate anion and one mol-ecule of water. In the crystal, the components are connected by N-H?O, N-H?N and O-H?O hydrogen bonds, forming a two-dimensional network parallel to (001). In addition, weak inter-molecular C-H?O hydrogen bonds lead to the formation of a three-dimensional network featuring R(5) (5)(19) rings.

| S-EPMC3050159 | biostudies-literature

4-Hydr-oxy-2,2,6,6-tetra-methyl-piperidinium hydrogensulfate monohydrate.

Project description:In the title compound, C(9)H(20)NO(+)·HO(4)S(-)·H(2)O, the piperi-dinium ring adopts a chair conformation. Inter-molecular O-H⋯O and N-H⋯O hydrogen bonds form an extensive three-dimensional network, which consolidates the crystal structure.

| S-EPMC2960323 | biostudies-literature

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