| || Chemistry of Metal Picramates Part II Copper and Silver
Author : Agrawal, J.P. ;Agrawal, S.P.
Source : Defence Science Journal ; Vol:20(4) ; 1970 ; pp 237-248
Subject : 547 Organic Chemistry
Keywords : Metal picramates ;Potentiometric methods
Abstract : Copper and silver picramates have been prepared and their compositions have been established by micro-analysis. This has been further confirmed by conductometric and potentiometric methods. I.R. studies of metal picramates show-H/sub 2/ N->M coordination where M is copper and silver. Various explosive properties of these picramates have also been studied.
| || Chemistry of Metal Benzylidene Picramate Part III Benzylidene Picramates of Zinc Cadmium and Mercury
Author : Srivastava, R.S.;Agrawal, S.P.;Bhargava, H.N.
Source : Defence Science Journal ; Vol:29(2) ; 1979 ; pp 91-96
Subject : 54 Chemistry
Keywords : Chloride solutions;I.R. spectral;Benzylidene picramates
Abstract : Benzylidene picramates of zinc, cadmium and mercury have been prepared by treating the corresponding aqueous sulphate and chloride solutions with sodium salt of 4-dimethylaminobenzylidence-2-hydroxy-3, 5-dinitroaniline. A metal: ligand ratio of 1:2 has been established in all these cases. I.R. spectral studies of metal benzylidene picramates show N M coordination (where M is zinc, cadmium or mercury). Explosive properties of these benzylidene picramates have also been studied and it was found that the thermal stability increases as the atomic radius decreases or ionization potential increases.
| || Explosive Properties of Chromium III and Maganese II Picramates
Author : Agrawal, S.P.;Srivastava, R.S.
Source : Defence Science Journal ; Vol:27(2) ; 1977 ; pp 75-76
Subject : 620.261 Explosives
Keywords : Metal picramates;Stereochemistry;Magnetic susceptibility;Electronic spectra
Abstract : Metal picramates have been of more interest than the picrates due to their ease of preparation and increased sensitivity towards heat and shocks. Recently Agrawal and Agrawal have prepared some transition metal picramates and investigated their stereochemistry from infrared and magnetic susceptibility measurements. They have also investigated the explosive properties of these metal picramates. Also, Aggrawal and Singh have prepared picramates of chromium (III) and maganese(II) but have only investigated their stereochemistry from infrared, electronic spectra and magnetic susceptibility measurements. However, since, the explosive properties may throw some direct utility of the picramates as a primary explosive. A detailed study of the explosive properties have been carried out.