Hydrogen compounds

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chemical compound of structural formula HNCO

overview about physical and chemical properties of pure water

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colorless highly toxic gas

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onium ion of helium; protonated helium

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Octahedric silicon compound

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diatomic inorganic compound with the formula HX where X is one of the halogens: fluorine, chlorine, bromine, iodine, or astatine

isotopic compound composed of one protium atom and one deuterium atom

Nitroxyl (common name) or azanone (IUPAC name) is the chemical compound HNO. It is well known in the gas phase. Nitroxyl can be formed as a short-lived intermediate in solution. Its conjugate base, NO−, the nitroxide anion, is the reduced form of nitric oxide (NO) and is isoelectronic with dioxygen. The bond dissociation energy of H−NO is , which is unusually weak for a bond to the hydrogen atom.

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The fluoronium ion is an inorganic cation with the chemical formula . It is one of the cations found in fluoroantimonic acid. The structure of the salt with the anion, has been determined. The fluoronium ion is isoelectronic with the water molecule and the azanide ion.

Trisulfane is the inorganic compound with the formula . It is a pale yellow volatile liquid with a camphor-like odor. It decomposes readily to hydrogen sulfide () and elemental sulfur. It is produced by distillation of the polysulfane oil obtained by acidification of polysulfide salts.

A polysulfane is a chemical compound of formula , where n > 1 (although disulfane () is sometimes excluded). Compounds containing 2 – 8 sulfur atoms have been isolated, longer chain compounds have been detected, but only in solution. is colourless, higher members are yellow with the colour increasing with the sulfur content. In the chemical literature the term polysulfanes is sometimes used for compounds containing , e.g. organic polysulfanes .

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any binary compound of hydrogen with a pnictogen

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any binary compound of hydrogen with chalcogens, including hydrogen polychalcogenides

'Tris(tert-butoxy)silanethiol' is a silicon compound containing three tert-butoxy groups and a rare Si–S–H functional group. This colourless compound serves as a hydrogen donor in radical chain reactions. It was first prepared by alcoholysis of silicon disulfide and purified by distillation: 3 (CH3)3COH + SiS2 → [(CH3)3CO]3SiSH + H2S

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Dialane is an unstable compound of aluminium and hydrogen with formula Al2H6. Dialane is unstable in that it reacts with itself to form a polymer, aluminium hydride. Isolated molecules can be stabilised and studied in solid hydrogen.

The xenonium ion, XeH+, is an onium compound, consisting of protonated xenon. Although the existence of the xenonium salts has not been proven, the isolated XeH+ ion is known. Salts of the fluoroxenonium ion, XeF+, are known to exist, for instance fluoroxenonium pentafluoroplatinate (XeFPtF5), more commonly known as xenon hexafluoroplatinate.

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