The high resolution hyper-Rayleigh light scattering spectrum for liquid nitrobenzene doped with triflic acid (CF(3)SO(3)H) shows a narrow spike at zero frequency shift which has the polarization signature of a polar longitudinal collective mode. This spectral spike disappears for pure nitrobenzene. The spectral spike is interpreted as due to ferroelectric domains in the liquid. The dopant molec...

Extraction of microamounts of europium and americium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of dodecaethylene glycol (DDEG, L) has been investigated. The equilibrium data have been explained assuming that the species HL+, H2L2+, ML3+ and MH-1L2+ (M3+ = Eu3+, Am3+; L = DDEG) are extracted into the organic phase. The values of extraction and stability c...

Luminescent silver cluster-based coordination polymers composed of Ag10 or Ag12 cluster cores and multidentate pyridine linkers were synthesized as well luminescent polymorphic silver(I)-based polymers. It was found that these exhibit highly sensitive luminescence quenching effect to nitrobenzene, attributed the π–π stacking interactions between nitrobenzene electron-withdrawing character nitro...

Interaction between nitrobenzene and silver cluster is investigated using the Density Functional Theory (DFT) at the B3PW91 level of theory. Adsorption causes a variation in the structural parameters. The charge transfer from silver cluster to nitrobenzene is identified from the plot of the molecular electrostatic potential (MEP) surface and natural population analysis (NPA). A marked enhanceme...

From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Na+(aq) + A-(aq) + 1(nb) left arrow over right arrow 1•Na+(nb) + A-(nb) taking place in the two-phase water-nitrobenzene system (A- = picrate, 1 = dibenzo-18-crown-6; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as was log Kex (1•Na+, A-) = 1.7 ± 0.1. Further, the stab...

Nitrobenzene is one of benzene derivatives. can be found naturally and also from the synthesis process. used as a raw material to synthesize aniline, textile dyes, pesticides, drugs. solvent in paint industry. The computational calculation was performed for nitrobenzene its four derivatives have been optimized using density functional theory/B3LYP functional. basis set 3-21G(d). structure geome...

Pseudomonas putida HS12, which is able to grow on nitrobenzene, was found to carry two plasmids, pNB1 and pNB2. The activity assay experiments of wild-type HS12(pNB1 and pNB2), a spontaneous mutant HS121(pNB2), and a cured derivative HS124(pNB1) demonstrated that the catabolic genes coding for the nitrobenzene-degrading enzymes, designated nbz, are located on two plasmids, pNB1 and pNB2. The ge...

Degradation of Nitrobenzene in an Aqueous Environment through Fenton-like Process Using Box–Behnken Design Method

Nimesulide, a COX-2 selective drug, possesses anti-inflammatory and analgesic properties. Moreover, it has low gastrointestinal and renal toxicity. This paper presents industrially viable, new and improved synthesis of nimesulide starting from o-chloro nitrobenzene. The reaction with triphenyl phosphate yields 2-phenoxy nitrobenzene (90%) followed by reduction and mesylation and finally selecti...