We have constructed the torsional PES for the three dinitrobenzene isomers using first principles methods.
We have constructed the torsional PES for dinitrobenzene isomers using first-principles methods.
Fraenkel, "Alternating linewidths in the ESR spectra of dinitrobenzene anion radicals," The Journal of Chemical Physics, vol.
Borunda, "Determination of the Torsional Potential of Energy Surfaces of the Ortho- Meta-, and Para-Isomers of Dinitrobenzene," in Proceedings of the APS Meeting Abstracts, 2015.
Dinitroaromatics compounds such as 1, 2- dinitrobenzene (1, 2-DNB) of BDH chemicals was purified by crystallizing it from ethanol (m.p found116C: reported 116.5C) and 1, 3- dinitrobenzene (1,3-DNB) of HOPKIN and WILLIAMS Ltd.
After running the blank an appropriate amount of compound (1,2- DNB, 1,3- DNB and 1,4- DNB) was added in the TBAP solution to make (dinitrobenzene) solution in the concentrations rangefrom 1A-10-4M - 1A-10-3M.
Summary: Cyclic voltammetric method has been employed to investigate the protonation of anion radicals of 1,2-, 1,3-, and 1,4- dinitrobenzenes in Hexamethylphosphortriamide (HMPA) in the temperature range 5C, 15C, 25C and 35C.
Key Words: Anion Radicals, Cyclic Voltammetry, Dinitrobenzenes, Glassy Carbon Electrode (GCE), HangingMercury Drop Electrode (HMDE), HMPA (hexamethylphosphortriamide ), Protonation reactions.
A 2 % (w/v) m- dinitrobenzene (BDH) was prepared in ethyl alcohol (BDH) and 1 N sodium hydroxide (E.
To an aliquot of cyclizine hydrochloride containing 50ug to 200ug/mL was added 1.5 mL of 2 M sodium hydroxide, 2.0 mL of 2 % (w/v) m- dinitrobenzene and the contents were heated for 80 seconds in a water bath at 100degC, cool and the volume was made upto 10 mL with ethyl alcohol.