Refinement of the structures of rubidium salts of trinitromethane and dinitroacetonitrile

Synthesis and structural analysis of some trinitromethanide salts

“…Trinitromethane and its salts have been known for almost 100 years [11,12]. Existing physical-chemical data include results of ab initio calculations [7][8][9][10] and single crystal X-ray crystallographic studies [13][14][15][16][17][18][19][20][21]. We studied two TNM salts containing weakly coordinating cations, tetrabutylammonium and cesium.…”

“…Analysis of the literature data [13][14][15][16][17][18][19][20][21] indicates that the TNM anion in various salts retains some common structural features. Thus, the central plane C-N 3 , (A-B 3 in II, Scheme 1) is preserved, as well as the planes of the individual nitro groups C-NO 2 , (A-BC 2 in II, Scheme 1).…”

“…The sums of the dihedral angles between the central plane of the anion and the planes of nitro groups vary from one structure to another in a range of 60-100Њ [13][14][15][16][17][18][19][20][21]. The non-planar character puts some limitations on the extent of involvement of Y-conjugation for this anion, which is reflected in several physicalchemical features.…”

Crystal structures, thermal decompositions and sensitivity properties of [Cu(ethylenediamine)2(nitroformate)2] and [Cd(ethylenediamine)3](nitroformate)2

“…However, the application of nitroform is severely constrained for its strong acidity and low decomposition temperature which is 298 K. Therefore, nitroform needs to cooperate with other compounds to form novel stable substances. Nitroformate salts have been widely studied [2][3][4][5][6][7][8][9][10][11][12]. For instance, hydrazinium nitroformate is a promising energetic oxidizer used to replace ammonium perchlorate in rocket propellant [13][14][15][16].…”