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A particularly important segment of covalent hydrides are complex metal hydrides, powerful soluble hydrides commonly used in synthetic procedures. Molecular hydrides often involve additional ligands; for example, diisobutylaluminium hydride (DIBAL) consists of two aluminum centers bridged by hydride ligands. Hydrides that are soluble in common ...
Compounds of hydrogen are often called hydrides, a term that is used fairly loosely. The term "hydride" suggests that the H atom has acquired a negative or anionic character, denoted H −, and is used when hydrogen forms a compound with a more electropositive element.
Examples of an industrially useful hydrides are HCo(CO) 4 and HRh(CO)(PPh 3) 3, which are catalysts for hydroformylation. HFeCl(dppe) 2 is one of the most accessible transition metal hydrides. The first molecular hydrides of the transition metals were first reported in the 1930s by Walter Hieber and coworkers.
Binary hydrogen compounds in group 1 are the ionic hydrides (also called saline hydrides) wherein hydrogen is bound electrostatically. Because hydrogen is located somewhat centrally in an electronegative sense, it is necessary for the counterion to be exceptionally electropositive for the hydride to possibly be accurately described as truly behaving ionic.
The ether solution of alane requires immediate use, because polymeric material rapidly precipitates as a solid. Aluminium hydride solutions are known to degrade after 3 days. Aluminium hydride is more reactive than Li[AlH 4]. [17] Several other methods exist for the preparation of aluminium hydride: 2 Li[AlH 4] + BeCl 2 → 2 AlH 3 + Li 2 [BeH ...
Other effects of hydrogen bonding are a high dielectric constant as well as low values of density, viscosity, and electrical conductivity. Like water, it is an excellent and often-used ionising solvent. [4] Over twenty other hydrides of nitrogen are known, the most important being hydrazine (N 2 H 4) and hydrogen azide (HN 3).
Pages in category "Metal hydrides" The following 75 pages are in this category, out of 75 total. This list may not reflect recent changes. A. Aluminium hydride; B.
The names of parent hydrides end with -ane, analogous with the nomenclature for alkanes. Derivatives of parent hydrides are named by appending prefixes or suffixes to the name of the parent hydride to indicate the substituents that replace the hydrogen atoms. Parent hydrides are used in both the organic nomenclature, and inorganic nomenclature ...