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1,1',2,2'-Tetra-methyl-3,3'-(p-phenyl-enedimethyl-ene)diimidazol-1-ium dibromide.

Puvaneswary S, Alias Y, Ng SW - Acta Crystallogr Sect E Struct Rep Online (2009)

Bottom Line: The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2Br(-), has the cation lying about a center of inversion.The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered.The imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 80.7 (5)° for the major disorder component and 89.8 (3)° for the other; the two components are off-set by 10.1 (6)°].

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Affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2Br(-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered. The imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 80.7 (5)° for the major disorder component and 89.8 (3)° for the other; the two components are off-set by 10.1 (6)°].

No MeSH data available.


Related in: MedlinePlus

Thermal ellipsoid plot (Barbour, 2001) of [C18H24N4]2+ 2Br- at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. The imidazolyl ring is disordered; the minor component of the disorder is not shown. The non-H atoms comprising the asymmetric unit are labelled and the unlabelled atoms are related by 1-x, -y, -z.
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Fap1: Thermal ellipsoid plot (Barbour, 2001) of [C18H24N4]2+ 2Br- at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. The imidazolyl ring is disordered; the minor component of the disorder is not shown. The non-H atoms comprising the asymmetric unit are labelled and the unlabelled atoms are related by 1-x, -y, -z.


1,1',2,2'-Tetra-methyl-3,3'-(p-phenyl-enedimethyl-ene)diimidazol-1-ium dibromide.

Puvaneswary S, Alias Y, Ng SW - Acta Crystallogr Sect E Struct Rep Online (2009)

Thermal ellipsoid plot (Barbour, 2001) of [C18H24N4]2+ 2Br- at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. The imidazolyl ring is disordered; the minor component of the disorder is not shown. The non-H atoms comprising the asymmetric unit are labelled and the unlabelled atoms are related by 1-x, -y, -z.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2977381&req=5

Fap1: Thermal ellipsoid plot (Barbour, 2001) of [C18H24N4]2+ 2Br- at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. The imidazolyl ring is disordered; the minor component of the disorder is not shown. The non-H atoms comprising the asymmetric unit are labelled and the unlabelled atoms are related by 1-x, -y, -z.
Bottom Line: The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2Br(-), has the cation lying about a center of inversion.The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered.The imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 80.7 (5)° for the major disorder component and 89.8 (3)° for the other; the two components are off-set by 10.1 (6)°].

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
The title imidazolium-based ionic-liquid salt, C(18)H(24)N(4) (2+)·2Br(-), has the cation lying about a center of inversion. The five-membered imidazole ring is disordered over two positions with the major component having a site occupancy of 0.712 (4); the N-bound methyl substituents are ordered. The imidazole ring is approximately perpendicular to the six-membered phenyl-ene ring [dihedral angle = 80.7 (5)° for the major disorder component and 89.8 (3)° for the other; the two components are off-set by 10.1 (6)°].

No MeSH data available.


Related in: MedlinePlus