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

An alternative for the anode materials of nickel metal hydride batteries: an AB-type LaGdMgNiCoAl hydrogen storage alloy., Gao, Zhijie, Meng Qingwu, Zhang Ying, Zhang Faliang, Luo Yongchun, and Li Hai-Wen , Dalton Trans, 2020 May 19, Volume 49, Issue 19, p.6312-6320, (2020)

Face-Fusion of Icosahedral Boron Hydride Increases Affinity to γ-Cyclodextrin: closo,closo-[B H ] as an Anion with Very Low Free Energy of Dehydration., Assaf, Khaleel I., Holub Josef, Bernhardt Eduard, Oliva-Enrich Josep M., M Pérez Isabel Fernández, Canle Moisés, J Santaballa Arturo, Fanfrlík Jindřich, Hnyk Drahomír, and Nau Werner M. , Chemphyschem, 2020 Mar 12, (2020)

Titanium Hydride Complex BaCa2Ti2H14 with 9-Fold Coordination., Yajima, Takeshi, Nakajima Hotaka, Honda Takashi, Ikeda Kazutaka, Otomo Toshiya, Takeda Hikaru, and Hiroi Zenji , Inorg Chem, 2020 Mar 06, (2020)

High-Pressure Synthesis of Magnetic Neodymium Polyhydrides., Zhou, Di, Semenok Dmitrii V., Xie Hui, Huang Xiaoli, Duan Defang, Aperis Alex, Oppeneer Peter M., Galasso Michele, Kartsev Alexey I., Kvashnin Alexander G., et al. , J Am Chem Soc, 2020 Jan 22, (2020)

Chemo- and Regioselective Synthesis of Acyl-Cyclohexenes by a Tandem Acceptorless Dehydrogenation-[1,5]-Hydride Shift Cascade., Smith, Lewis B., Armstrong Roly J., Matheau-Raven Daniel, and Donohoe Timothy J. , J Am Chem Soc, 2020 Jan 22, (2020)

A fast and sensitive flow-batch method with hydride generating and atomic fluorescence spectrometric detection for automated inorganic antimony speciation in waters., Lima, Eduardo A., Cunha Francisco A. S., Junior Mario M. S., Lyra Wellington S., Santos Josué C. C., Ferreira Sergio L. C., Araujo Mario C. U., and Almeida Luciano F. , Talanta, 2020 Jan 15, Volume 207, p.119834, (2020)

Catalyzing the Hydrodefluorination of CF3-substituted Alkenes by PhSiH3. H• Transfer from a Nickel Hydride., Yao, Chengbo, Wang Shuai, Norton Jack R., and Hammond Matthew , J Am Chem Soc, 2020 Jan 14, (2020)

Kinetic Model of Incipient Hydride Formation in Zr Clad under Dynamic Oxide Growth Conditions., Yu, Qianran, Reyes Michael, Shah Nachiket, and Marian Jaime , Materials (Basel), 2020 Feb 29, Volume 13, Issue 5, (2020)

Gold-Catalyzed Cyclization of 2-Alkynylaldehyde Cyclic Acetals via Hydride Shift for the Synthesis of Indenone Derivatives., Yamada, Tsuyoshi, Park Kwihwan, Tachikawa Takumu, Fujii Akiko, Rudolph Matthias, A Hashmi Stephen K., and Sajiki Hironao , Org Lett, 2020 Feb 12, (2020)

Organocatalytic Cascade β-Functionalization/Aromatization of Pyrrolidines via Double Hydride Transfer., Zhou, Lan, De An Xiao-, Yang Shuo, Li Xian-Jiang, Shao Chang-Lun, Liu Qing, and Xiao Jian , Org Lett, 2020 Feb 07, Volume 22, Issue 3, p.776-780, (2020)

Temperature reversible synergistic formation of cerium oxyhydride and Au hydride: a combined XAS and XPDF study., Clark, Adam H., Acerbi Nadia, Chater Philip A., Hayama Shusaku, Collier Paul, Hyde Timothy I., and Sankar Gopinathan , Phys Chem Chem Phys, 2020 Apr 24, (2020)

Sodium Butylated Hydroxytoluene (NaBHT) as a New and Efficient Hydride Source for Pd-Catalysed Reduction Reactions., Sharif, Sepideh, Rodriguez Michael J., Lu Yu, Kopach Michael E., Mitchell David, Hunter Howard N., and Organ Michael G. , Chemistry, 2019 Sep 19, (2019)

CO hydrogenation by phosphorus-nitrogen PNP-pincer iridium hydride complexes: elucidation of the deactivation pathway., Pan, Yupeng, Guan Chao, Li Huaifeng, Chakraborty Priyanka, Zhou Chunhui, and Huang Kuo-Wei , Dalton Trans, 2019 Sep 14, Volume 48, Issue 34, p.12812-12816, (2019)

Sodium borohydride-assisted synthesis of strontium substituted lanthanum cobaltate with in-situ generated cobaltosic oxide: Towards enhanced oxygen evolution reaction in alkaline media., Liu, Heng, Tan Pengfei, Ma Quanyin, Dong Rui, Zhu Anquan, Qiao Lulu, Tang Meifang, Li Erping, and Pan Jun , J Colloid Interface Sci, 2019 Sep 07, Volume 557, p.103-111, (2019)