Nitrogen anion

T. Chivers and R. T. Oakley, Sulfur-Nitrogen Anions and Related Compounds, Topics Curr. Chem., 102, 119 (1982). 

Sulfur—nitrogen anions in sulfur—liquid ammonia solutions... 

The unknown selenium-nitrogen anions [ScsN], [ScaNa] and [ScaNaH] have also been stabilized by coordination to platinum.A few examples of complexes involving anionic ligands with two different chalcogens, e.g., [ESNa] and [ESNaH] (E = Se, Te), are known. 

The use of nitrogen anions in this process has not been well investigated. Nitrogen anion (36) readily substituted fluorine in perfluoroazaaromatics and the products could be rationalized on the basis of kinetic and thermodynamic control. With tetafluoropyridazine and CsF as a source of F, none of the expected 4,5-isomer was obtained. For 4,5 substitution a less... 

Nitrogen anions, such as amide anions, may be stabilized by hydrogen bonding in a similar way to that of oxyanions116. In fact, 1,8-diaminonaphthalene is more acid (K+ DMSYL/DMSO) than 1,5-diaminonaphthalene because of the stabilization of the anion by an intramolecular hydrogen bond as shown in 27117. 

The electrochemical cyclization reaction is less successful with the N-(3-phenylallyl)acetanilide 60 which has two potential bond cleavage sites from the radical-anion [173]. Carbon-nitrogen bond cleavage with loss of a 3-phenylallyl radical, leaving an amide nitrogen anion, is favoured over carbon-chlorine bond cleavage. 

Role of Sulfur-Nitrogen Anions in the Synthesis of Cyclic Sulfur... 

Structurally characterized since 1970 and the structure of the eighth (S4N3 ) has been redetermined recently b) the first binary sulfur-nitrogen anion, S N " was isolated in 1975 and its structure was reported a year later c) the novel sulfur nitride, SjNg, was first identified in 1978 and d) although tetrasulfur dinitride, S N, has been known since 1897, the structure was not unequivocally determined until 1981... 

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