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1,3-Bis(2,6-diisopropyl-phen-yl)-1H-imidazol-3-ium bromide dichloro-methane disolvate.

ABSTRACT: In the title compound, C(27)H(37)N(2) (+)·Br(-)·2CH(2)Cl(2), both the cation and the anion are located on a crystallographic mirror plane. Both of the dichloro-methane solvent mol-ecules show a disorder across a mirror plane over two equally occupied positions. In the crystal, the cations are connnected to the bromide ions via C-H?Br hydrogen bonds.

SUBMITTER: Berger M

PROVIDER: S-EPMC3379414 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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1,3-Bis(2,6-diisopropyl-phen-yl)-1H-imidazol-3-ium bromide dichloro-methane disolvate.

Berger Matthias M Auner Norbert N Sinke Tanja T Bolte Michael M

Acta crystallographica. Section E, Structure reports online 20120523 Pt 6

In the title compound, C(27)H(37)N(2) (+)·Br(-)·2CH(2)Cl(2), both the cation and the anion are located on a crystallographic mirror plane. Both of the dichloro-methane solvent mol-ecules show a disorder across a mirror plane over two equally occupied positions. In the crystal, the cations are connnected to the bromide ions via C-H⋯Br hydrogen bonds. ...[more]

PMID: 22719612

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1,3-Bis(2,6-diisopropyl-phen-yl)-1H-imidazol-3-ium chloride dichloro-methane disolvate.

Project description:In the title compound, C(27)H(37)N(2) (+)·Cl(-)·2CH(2)Cl(2), the cation and the anion are each located on a crystallographic mirror plane. Both of the dichloro-methane solvent mol-ecules show a disorder across a mirror plane over two equally occupied positions. Additionally, one isopropyl group is also disordered. In the crystal, the cations are connected to the chloride ions via C-H⋯Cl hydrogen bonds.

| S-EPMC3379413 | biostudies-literature

1,3-Bis(2,6-diisopropyl-phen-yl)imidazolidinium tetra-phenyl-borate dichloro-methane disolvate.

Project description:The title compound, C(27)H(39)N(2) (+)·C(24)H(20)B(-)·2CH(2)Cl(2), is the first reported imidazolidinium cation with the sterically demanding 2,6-diisopropyl-phenyl groups in the 1,3-positions. The crystal structure is stabilized by weak inter-molecular C-H??(arene) inter-actions. Due to the bulky nature of both the flanking 2,6-diisopropyl-phenyl substituents and the tetra-phenyl-borate counter-ion, anion inter-actions with the imidazolidinium H atom in the 2-position are not observed, also a first for this class of ortho-alkyl-substituted Arduengo-type carbene precursors.

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1,3-Bis(2,6-diisopropyl-phen-yl)-4,5-dihydro-1H-imidazol-3-ium triiodide.

Project description:In the crystal structure of the title compound, C(27)H(39)N(2) (+)·I(3) (-), the imidazolidinium ring is perpendicular to a mirror plane which bis-ects the cation. The dihedral angle between the imidazolidinium ring and the benzene ring is 89.0?(2)°. The triiodide anion also lies on a mirror plane and is almost linear with an I-I-I bond angle of 178.309?(18)°.

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Project description:In the title salt, C(9)H(9)N(2) (+)·Br(-), the ethynyl groups are nearly anti-parallel to each other [the angle between the two ethynyl groups is179.7 (2)°]. No classical hydrogen bonds or π-π inter-actions are observed. The mol-ecules are linked by C-H⋯Br hydrogen bonds. The bromide anions are involved in inter-actions with three H atoms.

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Crystal structure of 1,3-bis-(2,6-diiso-propyl-phen-yl)-4,5-dimethyl-1H-imid-azol-3-ium bromide di-chloro-methane disolvate.

Project description:The title solvated salt, C29H41N2 (+)·Br(-)·2CH2Cl2 was obtained from the reaction of the Arduengo-type carbene 1,3-bis-(2,6-diiso-propyl-phen-yl)-1,3-dihydro-4,5-dimethyl-2H-imidazol-2-ylidene with Si2Br6 in di-chloro-methane. The complete cation is generated by a crystallographic mirror plane and the dihedral angle between the five-membered ring and the benzene ring is 89.8?(6)°; the dihedral angle between the benzene rings is 40.7?(2)°. The anion also lies on the mirror plane and both di-chloro-methane mol-ecules are disordered across the mirror plane over two equally occupied orientations. In the crystal, the cations are linked to the anions via C-H?Br hydrogen bonds.

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(?(6)-p-Cymene)(1,3-dimesityl-2,3-dihydro-1H-imidazol-2-yl-idene)bis-(pentafluorobenzoato-?O)ruthenium(II) dichloro-methane disolvate.

Project description:The title compound, [Ru(C7F5O2)2(C10H14)(C21H24N2)]·2CH2Cl2, is formed as an orange crystalline powder by the reaction of RuCl2(p-cymene)(IMes) and AgOCOC6F5 in anhydrous tetra-hydro-furan (IMes = 1,3-dimesityl-2,3-di-hydro-1H-imidazol-2-yl-idene). The asymetric unit consists of two independent [Ru(C6F5COO)2(?(6)-p-cymene)(IMes)] com-plexes and four dichloro-methane solvent mol-ecules. In each complex molecule, the Ru atom presents a pseudo-octa-hedral environment with the p-cymene ligand occupying three facial coordination sites, while the remaining coordination positions are occupied by the O atoms of the penta-fluoro-benzoate ligands and by the imidazolyl-idene ligand.

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Dichloridobis(1,3-diisopropyl-4,5-di-methyl-1H-imidazol-3-ium-2-thiol-ate-κS)copper(II).

Project description:The mol-ecular structure of the title compound, [CuCl2(C11H20N2S)2], shows the Cu(II) atom with a distorted tetra-hedral geometry from two Cl atoms [Cu-Cl = 2.2182 (6) Å] and two thione S atoms [Cu-S = 2.3199 (6) Å]. The angles at the copper cation, which lies on a twofold rotation axis, are Cl-Cu-Cl = 142.84 (4)°, Cl-Cu-S = 94.80 (2) and 99.97 (2)°, and S-Cu-S = 132.46 (4)°. The planes of the two imidazolium rings make a dihedral angle of 76.92 (8)°.

| S-EPMC3629488 | biostudies-literature

4,5-Dibromo-1,2-dimethyl-1H-imidazol-3-ium bromide.

Project description:In the title salt, C(5)H(7)Br(2)N(2) (+)·Br(-), the cation and anion are connected by an N-H⋯Br hydrogen bond. In the crystal, there are inter-calated layers parallel to (10-2) in which bromide ions are located between the cations. Weak inter-molecular C-H⋯Br hydrogen bonds are also observed.

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1,3-Bis(2,6-diisopropyl-anilino)-1-phenyl-butyl-ium hexa-fluorido-phosphate.

Project description:The cation of the title salt, C(34)H(45)N(2) (+)·PF(6) (-), is a protonated form of an unsymmetrical overcrowded β-imino-amine. The observed bond lengths [C-N = 1.326 (4)-1.341 (4) Å and C-C = 1.383 (4)-1.391 (4) Å] suggest significant delocalization within the π system of the N C C C N backbone.

| S-EPMC2915305 | biostudies-literature

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