Formation of simple nitrogen hydrides NH and NH2 at cryogenic temperatures through N + NH3 → NH + NH2 reaction: dark cloud chemistry of nitrogen
نویسندگان
چکیده
منابع مشابه
Chromatographic behavior of open-chain polyamines NH2-(CH2)2-[NH-(CH2)2]n-NH2 and their quantitative determination in sea water by high-performance ion-exchange chromatography.
The results are reported of a study using high-performance liquid chromatography for the chromatographic behavior of a homologous series of open-chain polyamines having the general molecular formula NH2-(CH2)2-[NH-(CH2)2]n-NH2 (n = 0-4). The exchange column is a carboxylate-functionalized resin. Amines are eluted with mixtures of HClO4 0.200 mol/L, NaClO4 from 0.100 to 1.40 mol/L, and acetonitr...
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A scheme for NH2 detection by means of laser-induced fluorescence (LIF) with excitation in the ultraviolet-blue regime around 385 nm, in particular using the second harmonic of a solid-state Alexandrite laser, is presented. This alternative provides interference-free detection with improved signal compared with previously employed concepts based on Nd:YAG and dye-laser excitation in the visible...
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Nitrogen hydrides, e.g., ammonia (NH3), hydrazine (N2H4) and hydrazoic acid (HN3), are compounds of great fundamental and applied importance. Their high-pressure behavior is important because of their abundance in giant planets and because of the hopes of discovering high-energy-density materials. Here, we have performed a systematic investigation on the structural stability of N-H system in a ...
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A long-standing controversy concerning the heat of formation of methylenimine has been addressed by means of the W2 (Weizmann-2) thermochemical approach. Our best calculated values, ∆H◦ f,298(CH2NH)=21.1±0.5 kcal/mol and ∆H◦ f,298(CH2NH + 2 )=179.4±0.5 kcal/mol, are in good agreement with the most recent measurements but carry a much smaller uncertainty. As a byproduct, we obtain the first-ever...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2016
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c6cp01621a