Trimethylammonium 5-(2,4-dinitrophenyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate 0.125-hydrate

Mangaiyarkarasi, Govindan; Kalaivani, D.

doi:10.1107/s1600536813007915

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Generally, ketones, E-diketones, and E-ketoesters form carbon-bonded anionic sigma complexes with nitroaromatics in the presence of tertiary amines [2][3][4]. A series of carbon-bonded anionic sigma complexes have earlier been synthesized in our laboratories by involving chloronitroaromatic compounds and barbituric acid in the presence of tertiary amines [5][6][7][8]. 2-Thiobarbituric acid is an important class of heterocyclic compounds which possesses a bio-active nucleus and displays complex biological activities, such as antibacterial, sedatives, herbicidal, fungicidal and antiviral [ 9,10 ].…”

Section: Introductionmentioning

confidence: 99%

2-methylpyridinium 5-(2,4-dinitrophenyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-olate: synthesis, crystal structure, and biological evaluation

2016

JSC

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The titled complex is synthesized from the ethanolic solutions of 1-chloro-2,4-dinitrobenzene, 2-thiobarbituric acid, and 2-methylpyridine and characterized by spectral and elemental analyses. The single crystal X-ray diffraction results for the complex are compatible with the spectral observations. The titled complex exhibits anticonvulsant activity and reduces all phases of convulsion even at a low dosage. Acute toxicity studies of the complex are performed to understand the safer dose concentration for clinical trials.

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Section: Introductionmentioning

confidence: 99%

2-methylpyridinium 5-(2,4-dinitrophenyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-olate: synthesis, crystal structure, and biological evaluation

2016

JSC

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Rank-3 root systems induce root systems of rank 4 via a new Clifford spinor construction

Dechant¹

2015

J. Phys.: Conf. Ser.

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In this paper, we show that via a novel construction every rank-3 root system induces a root system of rank 4. Via the Cartan-Dieudonné theorem, an even number of successive Coxeter reflections yields rotations that in a Clifford algebra framework are described by spinors. In three dimensions these spinors themselves have a natural four-dimensional Euclidean structure, and discrete spinor groups can therefore be interpreted as 4D polytopes. In fact, we show that these polytopes have to be root systems, thereby inducing Coxeter groups of rank 4, and that their automorphism groups include two factors of the respective discrete spinor groups trivially acting on the left and on the right by spinor multiplication. Special cases of this general theorem include the exceptional 4D groups D4, F4 and H4, which therefore opens up a new understanding of applications of these structures in terms of spinorial geometry. In particular, 4D groups are ubiquitous in high energy physics. For the corresponding case in two dimensions, the groups I2(n) are shown to be self-dual, whilst via a similar construction in terms of octonions each rank-3 root system induces a root system in dimension 8; this root system is in fact the direct sum of two copies of the corresponding induced 4D root system.

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Crystal structure of trimethylammonium 5-(2,4-dinitrophenyl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate

Gunaseelan¹,

Kalaivani²

2014

Acta Cryst E

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The asymmetric unit of the title molecular salt, C3H10N+·C12H9N4O7 − [alternative name: trimethylammonium 5-(2,4-dinitrophenyl)-1,3-dimethyl barbiturate], contains one anion and two half-occupancy cations. The cations are disordered about inversion centres. The tetrahydropyrimidine ring is essentially planar [maximum deviation = 0.007 (2) Å] and forms a dihedral angle of 41.12 (6)° with the plane of the benzene ring. In the crystal, N—H⋯O hydrogen bonds link the cations to the anions.

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Trimethylammonium 5-(2,4-dinitrophenyl)-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate 0.125-hydrate

Cited by 3 publications

References 12 publications

2-methylpyridinium 5-(2,4-dinitrophenyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-olate: synthesis, crystal structure, and biological evaluation

2-methylpyridinium 5-(2,4-dinitrophenyl)-6-oxo-2-thioxo-1,2,3,6-tetrahydropyrimidin-4-olate: synthesis, crystal structure, and biological evaluation

Rank-3 root systems induce root systems of rank 4 via a new Clifford spinor construction

Crystal structure of trimethylammonium 5-(2,4-dinitrophenyl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate

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