Impact of grain size and reactant ratio on reduction of CO2 to CH4 by alkali metal hydride

The first examples of well-defined alkali metal hydride complexes have been synthesised and characterised in recent years, and their properties and underlying principles for their generation and stabilisation are emerging. This article gives an account of the hydrides of the alkali metals (Group 1 metals) and selected ‘-ate’ complexes containing hydrides and alkali metals, and reviews the chemistry of well-defined alkali metal hydride complexes including their syntheses, structures, and characteristics. The properties of the alkali metal hydrides LiH, NaH, KH, RbH, and CsH are dominated by their ionic NaCl structure. Stable, soluble, and well-defined LiH and NaH complexes have been obtained by metathesis and β-hydride elimination reactions that require suitable ligands with some steric bulk and the ability to coordinate to several metal ions. These novel hydride complexes reward with higher reactivity and different properties compared with their parent ionic solids.

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Multi-component molecular orbital study on positron attachment to alkali-metal hydride molecules: nature of chemical bonding and dissociation limits of [LiH; e+]

The European Physical Journal D ◽

10.1140/epjd/e2014-40708-4 ◽

2014 ◽

Vol 68 (8) ◽

Cited By ~ 6

Author(s):

Takayuki Oyamada ◽

Masanori Tachikawa

Keyword(s):

Alkali Metal ◽

Molecular Orbital ◽

Metal Hydride ◽

Chemical Bonding ◽

Molecular Orbital Study ◽

Orbital Study ◽

Alkali Metal Hydride

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Negative hydride ion production by low energy electron impact of alkali metal hydride powder

International Journal of Mass Spectrometry and Ion Processes ◽

10.1016/0168-1176(91)85002-4 ◽

1991 ◽

Vol 104 (1) ◽

pp. 23-34 ◽

Cited By ~ 11

Author(s):

Hiroyuki Kawano

Keyword(s):

Alkali Metal ◽

Electron Impact ◽

Metal Hydride ◽

Low Energy ◽

Energy Electron ◽

Hydride Ion ◽

Ion Production ◽

Low Energy Electron ◽

Alkali Metal Hydride ◽

Hydride Powder

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Recyclable hydrogen storage system composed of ammonia and alkali metal hydride

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2009.10.034 ◽

2009 ◽

Vol 34 (24) ◽

pp. 9760-9764 ◽

Cited By ~ 46

Author(s):

Hikaru Yamamoto ◽

Hiroki Miyaoka ◽

Satoshi Hino ◽

Haruyuki Nakanishi ◽

Takayuki Ichikawa ◽

...

Keyword(s):

Alkali Metal ◽

Hydrogen Storage ◽

Metal Hydride ◽

Storage System ◽

Hydrogen Storage System ◽

Alkali Metal Hydride

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ChemInform Abstract: Superactive Alkali Metal Hydride Metalation Reagents: LiH, NaH, and KH.

Chemischer Informationsdienst ◽

10.1002/chin.198635031 ◽

1986 ◽

Vol 17 (35) ◽

Author(s):

P. A. A. KLUSENER ◽

L. BRANDSMA ◽

H. D. VERKRUIJSSE ◽

P. VON RAGUE SCHLEYER ◽

T. FRIEDL ◽

...

Keyword(s):

Alkali Metal ◽

Metal Hydride ◽

Alkali Metal Hydride

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Preparation of 2'(3')-O-phosphonylmethyl derivatives of ribonucleosides

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19830778 ◽

1983 ◽

Vol 48 (3) ◽

pp. 778-789 ◽

Cited By ~ 9

Author(s):

Ivan Rosenberg ◽

Antonín Holý

Keyword(s):

Alkali Metal ◽

Metal Hydride ◽

Sodium Hydride ◽

Protecting Groups ◽

Aqueous Alkali ◽

Subsequent Hydrolysis ◽

Derivatives Of ◽

Alkali Metal Hydride

Reaction of 5'-O-tritylribonucleosides I with dimethyl p-toluenesulfonyloxymethanephosphonate (III) followed by hydrolysis afforded 2'(3')-O-phosphonylmethyluridine (IIa), -cytidine (IIb) and -adenosine (IIc). With 2',5'-di-O-trityluridine (IX), this procedure led to the 3'-isomer of IIa, with 3',5'-di-O-trityluridine (X) to the 2'-isomer. 5'-O-Trityluridine (Ia) and -cytidine (Ib) were converted by reaction with iodomethanephosphonic acid and N,N'-dicyclohexylcarbodiimide into the 2'(3')-O-iodomethanephosphonyl derivatives IVa, b which on reaction with sodium hydride and subsequent hydrolysis gave the compounds IIa and IIb. Reaction of compound I or 5'-O-benzoyluridine (VIII) with chloromethanephosphonyl dichloride (V) and removal of the protecting groups afforded 2'(3')-O-chloromethanephosphonylribonucleosides VI which on reaction with sodium hydride, or better with aqueous alkali, gave 2'(3')-O-phosphonylmethyl derivatives of uridine (IIa), cytidine (IIb), adenosine (IIc) and guanosine (IId). 2',3'-O-Isopropylideneribonucleosides XI reacted with the compound V to give, after hydrolysis, 5'-O-chloromethanephosphonyluridine (XIIa) and cytidine (XIIb). These compounds were not affected by an alkali metal hydride or hydroxide.

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