The electronic absorption spectra and emission spectra of complexes FeLL′(L=mnt 2- ,1,2 dicyano 1,2 ethylenedithiolate or maleonitriledithiolate.L′=phen 5,6 dione,1,10 phenanthroline 5,6 dione;5 NO 2 phen,5 nitro 1,10 phenanthroline),and photosensitivity of CdS doped with FeLL′ are reported. The correlation between photosensitization of complexes FeLL′ to CdS and their electronic spectra is studied.
triazol 5 one (TO) was condensed by mixing semicarbazide hydrochloride and formic acid,3 nitro 1,2,4 triazol 5 one (NTO) was synthesized by nitrifying TO and its magnesium complex was obtained by adding magnesium carbonate (basic) to the aqueous solution of NTO.
CH 3) 2NH + 2C 2N 4O 3H - was prepared by mixing 3 nitro 1,2,4 triazol 5 one (NTO) ethanol solution and the dimethylamine aqueous solution. Single crystals suitable for X ray measurement were obtained by recrystallization with the mixed solvent of dimethyl formamide and methanol ( V∶V =1∶5) at room temperature.
The molecular recognition of β cyclodextrin to 3 nitro 1,2,4 triazole 5 one (NTO) and 1,2 dihydro 3H 1,2,4 triazole 3 one (TO) was respectively studied by matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI TOF MS). The effects of different matrixes and concentrations on mass spectra were investigated.
The accuracy of four exchange/correlation functional combinations (BLYP, B3LYP, B3PW91 and B3P86) in combination with different basis sets are evaluated for computing bond dissociation energies of a typical system containing ozone, nitromethane and hexahydro-1, 3,5-trinitro-1,3,5-triazine (RDX).
In this paper, studies on thermal decomposition of TNAZ(1,3,3-trinitroazetidine),NTO(5-nitro-2,4-dihydro-3H-1,2,4-triazole-3-one),FOX-7(1,1-Diamino-2,2-dinitroethylene),LLM-105(2,6-diamino-3,5-dinitropyrazine-1-oxide)were reviewed.
The reactions of N,N′diaryl2nitro1,4phenylenedioxydiacetyl chloride with various arylamines afford N,N′diaryl2nitro1,4phenylenedioxydiacetamides under solventless and room temperature grinding condition expeditiously.
Based on the geometric parameters optimized at B3LYP/631+G* level, nonlinear optical (NLO) susceptibilities of 1amino4nitro1,3butadiene have been calculated by using finite field(FF) at ab initio HatreeFock (HF), MollerPlesset secondorder perturbation(MP2) and density functional theory (B3LYP) levels respectively.
Die Synthese reiner Oligo[hydroxy-5-nitro1,3-phenylen)-methylen]e, Verbindungen mit mehreren ortho- bzw.
Circular dichroism study of nucleophilic attack at tris-(5-nitro1,1
Anumber of 1-methyl-4-(2-hydroxyalkyl)-3-nitro-1,2,4-triazol-5-ones and their derivatives were obtained by reaction of 1-methyl-3-nitro1,2,4-triazol-5-one with α-epoxides.
Selective catalytic reduction of nitro 1-(2-alkylbenzofuran-3-yl)-2-(4-methoxyphenyl)ethanones to the corresponding amino compounds under Pd/C in room temperature was achieved.
p-Nitro-acetophenone was prepared by diazotizing p-amino-acetophenone in fluoroboric acid solution and replacing the diazonium fluoroborate group by the nitro group in presence of finely divided copper as catalyst. Yield 55-60%; m.p. 76-78℃. Recrystallization from alcohol gave a product of m.p. 80℃.
p-Nitrobromobenzene was prepared from the sodium salt of α-p-Nitrophe-nyl-β-acetyl-hydrazine by bromination and subsequent addition of copper catalyst.Similary,α-p-nitrophenyl-pyridine was obtained by adding pyridine instead ofcopper catalyst.
o-Nitrophenol,p-nitrophenol,4-nitro-2-methyl-phenol,2,6-dichloro-4-nitro-phenol,p-nitrosophenol,4-nitroso-2-methyl-phenol,α-nitroso-β-naphthol,p-hydroxy-azobenzenesulfonic acid and Orange Ⅱ were reduced satisfactorily to the corre-sponding aminophenolic compounds by glucose or invert sugar in alkaline solu-tion.m-Nitrophenol and 2,4-dinitrophenol gave negative results.Due to high yield and easy manipulation,this method may be used withadvantage in the laboratory preparation of aminophenolic compounds.