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The crystal and molecular structure of tramazoline hydrochloride monohydrate, C13H18N3+Cl−·H2O
Published/Copyright:
August 25, 2010
Abstract
The crystal and molecular structure of tramazoline hydrochloride monohydrate, an α-adrenergic agonist with sympathomimetic action, has been studied by X-ray diffraction methods and refined to R = 0.088 (Rw = 0.066). It crystallizes in the orthorhombic space group Pbca with a = 21.5224(11), b = 8.9251(2), c = 14.7149(4) Å, V = 2826.58(18) Å3, Z = 8, Mr = 269.77, Dc = 1.268 g/cm3, Dm = 1.263 g/cm3, λ = 1.5418 Å μ = 23.568 cm−1, F(000) = 1152. The analysis indicates that the positive charge is dispersed over the nitrogen atoms of the molecule and the dihedral angle between the aromatic and dihydroimidazole groups is 126.7(2)°. The results have been compared with other structurally related α-adrenergic imidazoli(di)ne agonists and antagonists.
Published Online: 2010-08-25
Published in Print: 1992
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- Crystal structure and spectra of bis[p-chloro-benzoyl-di-(2-pyridyl)ketonohydrazono]uranyl
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- Crystal structure of calcium hydroxide nitrate hydrate and its superstructure in relation to cadmium hydroxide nitrate hydrate
- Structural phase transition in GaMo4Se8 and AlMo4S8 by X-ray powder diffraction
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- Allowance for Debye scattering in Wilson-plot least-squares procedures
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