About Hydrides

Hydride Ion Diagram

The hydride ion is the anion of hydrogen, H-. Hydrides are compounds in which one or more hydrogens have nucleophilic/reducing properties, and many are ionic compounds containing the hydride ion. Almost all the elements form binary compounds with hydrogen; these are the simplest hydrides.

Hydrides are divided into three basic types: saline, metallic, and covalent. Saline hydrides, such as sodium hydride and calcium hydride, are often used as portable sources of hydrogen gas. Metallic hydrides, such as titanium hydride, are alloy-like materials that share some properties with metals including luster and electrical conductivity. Covalent hydrides are mostly compounds of hydrogen and nonmetallic elements; they include water, ammonia, hydrogen sulfide, and methane. A fourth group of hydrides, dimeric or polymeric hydrides, give off large amounts of energy when burned and have been investigated for use in rocket fuels.

Hydrides like sodium and potassium hydride are commonly used as reducing agents in chemical synthesis, dessicants or drying agents in laboratory or industrial settings, catalysts, and as chemical means of hydrogen storage, as in nickel-metal hydride battery and hydrogen fuel cell technologies.

Recent Research & Development for Hydrides

(Diphenylphosphino)alkylaldehyde affords hydride- or alkyl-[(diphenylphosphino)alkylacyl]rhodium(iii) or (diphenylphosphino)alkylester complexes: theoretical and experimental diastereoselectivity., Azpeitia, Susan, Barquín Montserrat, Mendicute-Fierro Claudio, Huertos Miguel A., Rodríguez-Diéguez Antonio, Seco Jose M., San Sebastian Eider, Ibarlucea Lourdes, and Garralda María A. , Dalton Trans, 2019 Mar 05, Volume 48, Issue 10, p.3300-3313, (2019)

Consecutive ligand-based PCET processes affording a doubly reduced nickel pyrazinedithiolate which transforms into a metal hydride required to evolve H., Koshiba, Keita, Yamauchi Kosei, and Sakai Ken , Dalton Trans, 2019 Jan 02, Volume 48, Issue 2, p.635-640, (2019)

Nucleophilic Aromatic Substitution at Benzene with Powerful Strontium Hydride and Alkyl Complexes., Rösch, Bastian, Gentner Thomas Xaver, Elsen Holger, Fischer Christian A., Langer Jens, Wiesinger Michael, and Harder Sjoerd , Angew Chem Int Ed Engl, 2019 Feb 21, (2019)

Experimental and Computational Studies of Dinitrogen Activation and Hydrogenation at a Tetranuclear Titanium Imide/Hydride Framework., Shima, Takanori, Luo Gen, Hu Shaowei, Luo Yi, and Hou Zhaomin , J Am Chem Soc, 2019 Feb 13, Volume 141, Issue 6, p.2713-2720, (2019)

Asymmetric Transfer Hydrogenation with a Bifunctional Iron(II) Hydride: Experiment Meets Computation., De Luca, Lorena, Passera Alessandro, and Mezzetti Antonio , J Am Chem Soc, 2019 Feb 13, Volume 141, Issue 6, p.2545-2556, (2019)

A Masked Cuprous Hydride as a Catalyst for Carbonyl Hydrosilylation in Aqueous Solutions., Ritter, Florian, Mukherjee Debabrata, Spaniol Thomas P., Hoffmann Alexander, and Okuda Jun , Angew Chem Int Ed Engl, 2019 Feb 04, Volume 58, Issue 6, p.1818-1822, (2019)

Scandium alkyl and hydride complexes supported by a pentadentate diborate ligand: reactions with CO and NO., Beh, Daniel W., Piers Warren E., Del Rosal Iker, Maron Laurent, Gelfand Benjamin S., Gendy Chris, and Bin Lin Jian- , Dalton Trans, 2018 Sep 13, (2018)

LiSrSiOH, an Air-Stable Hydride as Host for Eu(II) Luminescence., Gehlhaar, Florian, Finger Raphael, Zapp Nicolas, Bertmer Marko, and Kohlmann Holger , Inorg Chem, 2018 Sep 11, (2018)

Nucleophilic amination of methoxypyridines by a sodium hydride-iodide composite., Pang, Jia Hao, Kaga Atsushi, and Chiba Shunsuke , Chem Commun (Camb), 2018 Sep 11, Volume 54, Issue 73, p.10324-10327, (2018)

Improvement in the Hydrogen-Storage Characteristics of Magnesium Hydride by Grinding with Sodium Alanate and Transition Metals in a Hydrogen Atmosphere., Song, Myoung Youp, Kwak Young Jun, and Lee Seong Ho , J Nanosci Nanotechnol, 2018 Sep 01, Volume 18, Issue 9, p.6047-6054, (2018)

Spectroscopic Identification of the Carbyne Hydride Structure of the Dehydrogenation Product of Methane Activation by Osmium Cations., Armentrout, P B., Kuijpers Stach E. J., Lushchikova Olga V., Hightower Randy L., Boles Georgia C., and Bakker Joost M. , J Am Soc Mass Spectrom, 2018 Sep, Volume 29, Issue 9, p.1781-1790, (2018)

Molecular hydrides of divalent ytterbium supported by a macrocyclic ligand: synthesis, structure and olefin hydrofunctionalization catalysis., Schuhknecht, Danny, Truong Khai-Nghi, Spaniol Thomas P., Maron Laurent, and Okuda Jun , Chem Commun (Camb), 2018 Oct 04, Volume 54, Issue 80, p.11280-11283, (2018)

Protonation of a Cobalt Phenylazopyridine Complex at the Ligand Yields a Proton, Hydride, and Hydrogen Atom Transfer Reagent., McLoughlin, Elizabeth A., Waldie Kate M., Ramakrishnan Srinivasan, and Waymouth Robert M. , J Am Chem Soc, 2018 Oct 04, (2018)

Switching between Stepwise and Concerted Proton-Coupled Electron Transfer Pathways in Tungsten Hydride Activation., Huang, Tao, Rountree Eric S., Traywick Andrew P., Bayoumi Magd, and Dempsey Jillian L. , J Am Chem Soc, 2018 Nov 07, Volume 140, Issue 44, p.14655-14669, (2018)

Neutron Scattering Investigations of Hydride Species in Heterogeneous Catalysis., Polo-Garzon, Felipe, Luo Si, Cheng Yongqiang, Page Katharine L., Ramirez-Cuesta Anibal J., Britt Phillip F., and Wu Zili , ChemSusChem, 2018 Nov 05, (2018)