Imide, lithium

Lithium Amide. Lithium amide [7782-89-0], LiNH2, is produced from the reaction of anhydrous ammonia and lithium hydride. The compound can also be prepared by the removal of ammonia from solutions of lithium metal in the presence of catalysts (54). Lithium amide starts to decompose at 320°C and melts at 375°C. Decomposition of the amide above 400°C results first in lithium imide, Li2NH, and eventually in lithium nitride, Li N. Lithium amide is used in the production of antioxidants (qv) and antihistamines (see HiSTAMlNE AND HISTAMINE ANTAGONISTS). 

Lithium imides (imidolithiums) are air-sensitive compounds of general formula... 

Lithium imides have proved to be useful reagents for the synthesis of imino derivatives of a wide variety of other elements, e.g. Be, B, Al, Si, P, Mo, W and Fe as in equation (3). 

When R and R are both aryl groups the resulting lithium imides are amorphous, insoluble... 

The ring-stacking concept used in the preceding paragraph to explain the occurrence and structure of lithium imide hexamers can be applied more widely to Li-C, Li-N and Li O rings and... 

Another interesting lithium-based system is Li3N/Li2NH [53]. Lithium nitride can be hydrogenated to lithium imide and lithium hydride (5.4 wt% H2). The latter reaction can be used for reversible storage at 250°C. The formation of ammonia can be completely avoided by the addition of 1% TiCl3 to the system, which has the positive additional effect to improve the kinetics [54]. Very fast kinetics has been reported for a partially oxidized lithium nitride [55]. 

As a result, the acid strength of the proton is approximately equivalent to that of sulfuric acid in nonaqueous media. In view of the excellent miscibility of this anion with organic nonpolar materials, Armand et al. proposed using its lithium salt (later nicknamed lithium imide , or Lilm) in solid polymer electrolytes, based mainly on oligomeric or macro-molecular ethers. In no time, researchers adopted its use in liquid electrolytes as well, and initial results with the carbonaceous anode materials seemed promising. The commercialization of this new salt by 3M Corporation in the early 1990s sparked considerable hope that it might replace the poorly... 

II. Lithium Imides (Iminolithiums) and Their Complexes Ring Stacking... 

A. Uncomplexed Lithium Imides (RR C=NLi) Solid-State Structures... 

C. Solution Structures of Lithium Imides and Their Complexes... 

Lithium amides and lithium imides (iminolithiums) (R2C=NLi) have also been used to prepare amides and imides of other metals and... 

Ammonia, Lithium amide. Lithium Imide. Lithium nitride. Magnesium nitride. 

Y. Kojima, Y. Kawai, IR characterization of lithium imide and amide , J. Alloys Compd. 395... 

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