Results 131 to 140 of about 332 (164)
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Crystal growth of trinitrobenzene and trinitrotoluene
Materials Research Bulletin, 1973Abstract Single crystals of 1,3,5-trinitrobenzene (TNB) and 2,4,6-trinitrotoluene (TNT) up to two centimeters in size were grown by the precipitant infusion method. Examination by an X-ray imaging method showed that the crystals, or substantial portions of them, are sufficiently perfect for many investigations.
W. Fisco, O. Haase
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A Facile Two‐Step Synthesis of 1,3,5‐Trinitrobenzene.
ChemInform, 2004Synthesis of 1,3,5-trinitrobenzene was achieved by converting phloroglucinol into its trioximes by reaction with aqueous hydroxylamine followed by oxidation of the trioxime product with 90% nitric acid.
Jeffrey C. Bottaro +2 more
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An Aromatic Amine—1,3,5-Trinitrobenzene σ-Complex
Canadian Journal of Chemistry, 1972Interaction between aniline and the 1,3,5-trinitrobenzene–methoxide ion adduct 1 in DMSO solution results in spectral changes which are characteristic of σ-complex formation, the first such case involving an aromatic amine.
E. Buncel, J. G. K. Webb
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Electron Transfer Reactions involving s-Trinitrobenzene
Nature, 1960IT has been claimed1,2 that the reaction of s-trinitrobenzene with certain amines involves a proton transfer mechanism. Evidence given in support of this claim was not very satisfactory, and in fact it has been clearly shown by exchange measurements3,4 on similar systems that no proton transfers occur.
R. E. MILLER, W. F. K. WYNNE-JONES
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Five New Pseudopolymorphs of sym-Trinitrobenzene
Crystal Growth & Design, 20031,3,5-Trinitrobenzene (TNB) was recrystd. from about 30 solvents and five mixed solvents in around 50 expts. to yield five new solvates. All the solvates lose their solvent readily, and special precautions were required to det. their crystal structures. In all cases, the solvents that gave solvates are electron-rich aroms.
Jetti, Ram K. R. +3 more
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ChemInform Abstract: Trifluoromethylation of 1,3,5‐Trinitrobenzene.
ChemInform, 1990AbstractThe trifluoromethyl anion, generated by thermal decomposition of potassium trifluoroacetate (II), is trapped with 1,3,5‐trinitrobenzene (I), forming the Meisenheimer complex (III) which is characterized by its 1H NMR spectrum.
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A zwitterionic Meisenheimer complex of 2,4,6-trinitrobenzene
Acta Crystallographica Section C Crystal Structure Communications, 1999In molecules of the zwitterionic Meisenheimer complex 4-(N-pyridiniomethyl)-1,3-dioxolane-2-spiro-1'-2',4',6'-trinitrocyclohexadienide (C 14 H 12 N 4 O 8 ), the nitro groups do not possess equivalent geometries. The C-N bond to the nitro group para to the saturated C atom is shorter than those of the others, and bond lengths vary considerably between ...
O. Ya. Borbulevych +2 more
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Synthesis of 4,6‐Dinitrobenzo[b]furans from 1,3,5‐Trinitrobenzene.
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Mikhail D. Dutov +3 more
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HYDROGEN EXCHANGE IN s-TRINITROBENZENE
Canadian Journal of Chemistry, 1966Hydrogen exchange in s-trinitrobenzene has been observed in the medium 90% dimethylformamide – 10% deuterium oxide containing sodium deuteriooxide (0.01 M). The proton transfer process between s-trinitrobenzene and base is therefore established. The factors which may contribute to the importance of the proton transfer process relative to the formation
E. Buncel, E. A. Symons
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Thermal decomposition of 1,3,5-triamino-2,4,6-trinitrobenzene
Combustion and Flame, 1981Abstract The products of sublimation and thermal decomposition of 1,3,5-triamino-2,4,6-trinitrobenzene have been determined mass spectrometrically in the temperature range 200–300°C employing both the effusion and Langmuir evaporation methods.
Milton Farber, R.D. Srivastava
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