Chemistry of hydrogen

Perhaps the most exciting recent development in the chemistry of hydrogen is the discovery that, in transition metal polyhydrides, the molecule Hj can act as a dihapto ligand, (see below). 

The coordination chemistry of hydrogen is still being intensively studied and new developments are continually being reported. 

Some aspects of chemistry of hydrogenated quinolines 98JHC761. 

An overall view of the chemistry of hydrogen requires that it be classified alone—as a separate... 

The coordination chemistry of hydrogen cyanide, cyanogen and cyanogen halides. B. Corain, Coord. Chem. Rev., 1982, 47,165-200 (111). 

In another experiment, naphthalene-d8 was used to investigate the chemistry of hydrogen transfer between coal and nondonor solvent at 380°C. An analysis of the recovered naphthalene-d8 showed that approximately 4% of the hydrogen in the coal and in the naph-thalene-d8 exchanged. Most of the protium incorporated in the naphthalene-d8 was found in the a-position. The coal products contained approximately 2 wt % chemically-bound napththalene-d8. 

The main part of this research deals with the reaction of deuterium gas and Tetralin-d12 with a bituminous coal. In a separate experiment, naphthalene-d8 was used for investigating the chemistry of hydrogen transfer between coal and a nondonor solvent. In each experiment, the coal products and spent solvent were analyzed for toal deuterium content and for deuterium incorporation in each structural position. 

Cicerone RJ, ZellnerR. 1983. The atmospheric chemistry of hydrogen cyanide (HCN). JGeophysRes 88 10689-10696. 

Boland, J. J. (1992a). Role of bond-strain in the chemistry of hydrogen on the Si(lOO) surface. Surf. Sci. 261, 17-28. 

The detailed chemistry of hydrogen and carbon monoxide oxidation is well established [152,291,442], and chemical kinetic modeling can be used confidently for these reaction systems to predict behavior over a wide range of conditions. 

In this chapter, we ll take a detailed look at the chemistry of hydrogen and oxygen, and we ll discuss some of the properties of water, the solvent for all the reactions to be discussed in Chapters 15 and 16. 

The problem in question is really very complicated. Here we have many potential possibilities formation of quasi-liquid hydrogen in cavities of nanomaterials, physical adsorption of hydrogen molecules, absorption of H-atoms, formation-rupture of covalent C-H bonds with possible eluation of carbon in the form of gaseous hydrocarbons. But the complicity of the problem cannot create obstacles to the true science. As every new field, chemistry of hydrogen in carbon nano-materials requires serious and all-round experimental investigations. Only such investigations can precede to theoretical treating of the phenomenon and be the criterion of the accuracy of different theoretical constructions. 

Deuterium (D) is the hydrogen isotope of mass number 2, with a proton and a neutron in its nucleus. The chemistry of deuterium is nearly identical to the chemistry of hydrogen, except that the C — D bond is slightly stronger than the C—H bond by 5.0 kJ/mol (1.2 kcal/mol). Reaction rates tend to be slower if a C —D bond (as opposed to a C—H bond) is broken in a rate-limiting step. 

King, R. B. (1995). Inorganic Chemistry of the Main Group Elements. New York VCH Publishers. An excellent introduction to the descriptive chemistry of many elements. Chapter 1 deals with the chemistry of hydrogen. 

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