Alkali Metal Hydride Modification on Hydrazine Borane for Improved Dehydrogenation

2014 ◽  
Vol 118 (21) ◽  
pp. 11244-11251 ◽  
Author(s):  
Yong Shen Chua ◽  
Qijun Pei ◽  
Xiaohua Ju ◽  
Wei Zhou ◽  
Terrence J. Udovic ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Hydride ◽  
Alkali Metal Hydride

scholarly journals Alkali Metal Hydride Complexes: Well-Defined Molecular Species of Saline Hydrides

2015 ◽  
Vol 68 (8) ◽  
pp. 1190 ◽  
Author(s):  
Lea Fohlmeister ◽  
Andreas Stasch
Keyword(s):  
Alkali Metal ◽  
Molecular Species ◽  
Metal Hydride ◽  
Alkali Metals ◽  
Metal Hydrides ◽  
Hydride Complexes ◽  
Ionic Solids ◽  
Hydride Elimination ◽  
Alkali Metal Hydride ◽  
Group 1

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.

scholarly journals Recyclable hydrogen storage system composed of ammonia and alkali metal hydride

2009 ◽  
Vol 34 (24) ◽  
pp. 9760-9764 ◽  
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

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

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

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

1983 ◽  
Vol 48 (3) ◽  
pp. 778-789 ◽  
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.

Organically-Capped, Nanoscale Alkali Metal Hydride and Aluminum Particles as Solid Propellant Additives

2019 ◽  
Vol 35 (4) ◽  
pp. 736-746 ◽  
Author(s):  
Adam R. Lawrence ◽  
Jacob M. Laktas ◽  
Greg J. Place ◽  
Paul A. Jelliss ◽  
Steven W. Buckner ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Hydride ◽  
Solid Propellant ◽  
Aluminum Particles ◽  
Alkali Metal Hydride
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