5 resultados para hydrogen chloride
em Deakin Research Online - Australia
Resumo:
Undergraduate students often have the misconception that molecules have fixed, unchanging bond lengths. This article discusses how linear-molecule rotational band spacings in infrared spectroscopy can be used as a qualitative, visual demonstration of the elongation of average bond lengths on vibrational excitation. The method does not depend on a detailed mathematical analysis of the spectra. In UV–vis spectroscopy, the rotational band spacings give rise to distinctive linear-molecule rotational contours, which easily show whether the average bond length has increased or decreased. The method is based on a spreadsheet simulation of the vibration–rotation or rovibronic (electronic–vibration–rotation) spectrum and is applied to hydrogen chloride IR, iodine UV–vis, and nitrogen UV–vis spectra in this article.
Resumo:
In the crystal structure of the title compound, C10H10N3+·Cl-·[P(O)(OH)2H], the chloride ion and phosphorous acid form a one-dimensional hydrogen-bonded chain, while the 2-(2-pyridylamino)pyridinium cations form a second chain through [π]-[π] stacking. The two parallel chains are connected via a PO...H-N hydrogen bond and a weak pyridinium-to-chloride interaction.
Resumo:
The aymmetric unit of the title compound, C8H18N+·Cl -, consists of one crystallographically independent 1-methyl-1-propyl-pyrrolidinium cation and one chloride anion, both of which lie in general positions. Minor hydrogen-bonded C - H⋯Cl inter-actions occur. However, no classical hydrogen bonding is observed.
Resumo:
Sewer odour and corrosion is caused by the reduction of sulphide ions and the release of hydrogen sulphide gas (H