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Journal articles on the topic 'P-nitroaniline'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 June 2025

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1

RACHANA, RASTOGI, and K. GUPTA V. "Determination of meta-, para- and ortho-Nitroanilines using Spectrophotometric and Thermal Gradient Chromatographic Methods." Journal of Indian Chemical Society Vol. 75, Apr 1998 (1998): 267–68. https://doi.org/10.5281/zenodo.5924251.

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School of Studies in Chemistry, Pt. Ravi Shankar Shukla University, Raipur-492 010 <em>Manuscript received 1 August 1997, accepted 8 August 1997</em> A new sensitive spectrophotometric method based on diazotization and coupling reaction has been developed to determine the meta-, para- and ortho-nitroanilines. The nitroanilines were diazotized and coupled with phloroglucinol to give yellow azo-dyes, having λ<sub>max</sub> at 405, 435 and 450 nm respectively. The color systems obeyed Beer's law in the range 0.04-0.4 ppm for m-nitroaniline, 0.08-0.8 ppm for p-nitroaniline and 0.12-1.08 ppm for o-nitroaniline. The molar absorptivity and Sand sensitivity have been determined. Thermal gradient chromatography has also been used for the simultaneous determination of meta-para- and orttho-nitroanilines in a mixture. The methods have applied to the determination of nitroanilines in environmental samples.    

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2

Deshmukh, Arundhati, Sujoy Bandyopadhyay, Anto James, and Abhijit Patra. "Trace level detection of nitroanilines using a solution processable fluorescent porous organic polymer." Journal of Materials Chemistry C 4, no. 20 (2016): 4427–33. http://dx.doi.org/10.1039/c6tc00599c.

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Sensitive detection of environmentally hazardous nitroanilines, especially p-nitroaniline in solution as well as in contact mode, was achieved employing a solution processable fluorescent porous organic polymer.

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3

Lemmerer, Andreas, and David G. Billing. "p-Nitroaniline hydrobromide." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (2006): o1562—o1564. http://dx.doi.org/10.1107/s1600536806010166.

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The crystal stucture of p-nitroaniline hydrobromide, C6H7N2O2 +·Br− or O2NC6H4NH3 +·Br−, exhibits ionic layers separated by hydrocarbon layers. The hydrocarbon layers stack head-to-tail but no π–π interactions are observed. In the inorganic layer, the ammonium group, Br− anion and nitro group interact to form a three-dimensional hydrogen-bonded network. The structure is compared with that of the related compound O2NC6H4NH3 +·Cl−.

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4

Szostak, M. Magdalena, Bolesław Kozankiewicz, and Józef Lipiński. "Low-temperature photoluminescence of p-nitroaniline and o-methyl-p-nitroaniline crystals." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 67, no. 5 (2007): 1412–16. http://dx.doi.org/10.1016/j.saa.2006.10.038.

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5

Kimura, Y., S. Ibaraki, R. Hirano, Y. Sugita, Y. Yasaka, and M. Ueno. "Photoexcitation dynamics of p-nitroaniline and N,N-dimethyl-p-nitroaniline in 1-alkyl-3-methylimidazolium-cation based ionic liquids with different alkyl-chain lengths." Physical Chemistry Chemical Physics 19, no. 33 (2017): 22161–68. http://dx.doi.org/10.1039/c7cp03610h.

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6

Von Niessen, W. "Valence ionization spectrum of p-nitroaniline." Journal of Physical Chemistry 92, no. 5 (1988): 1035–39. http://dx.doi.org/10.1021/j100316a010.

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7

Varghese, Anju Linda, P. L. Maria Linsha, and George Mathai. "Exploring the Third-Order Non-linear Optical Responses and Optical Limiting Properties of p-Nitroaniline Picrate: A Theoretical and Experimental Study." Asian Journal of Chemistry 36, no. 9 (2024): 2013–18. http://dx.doi.org/10.14233/ajchem.2024.31999.

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The current study investigates the nonlinear optical behaviour of p-nitroaniline picrate, which has been synthesized and characterized. Its third-order non-linear optical properties were investigated via Z-scan studies. p-Nitroaniline picrate demonstrates a reverse saturable absorption, as indicated by a positive absorption coefficient (b), which is of the order 10–12 m/W. Closed aperture data indicate a positive refractive non-linearity due to self-focusing, with non-linear refractive index (n2), third-order susceptibility (χ(3)) and second-order hyperpolarizability (g) in order of 10–19 m2/W, 10–13 esu and 10–34 esu, respectively. Theoretical calculations corroborated the experimental findings, emphasizing the significant third-order non-linearities of p-nitroaniline picrate. An optical limiting property is demonstrated with a threshold of 16.32 J/cm2. Low HOMO-LUMO energy gaps, intermolecular hydrogen bonding and intramolecular charge transfer interactions are the properties that are related to these qualities according to DFT research. Therefore, p-nitroaniline picrate is highly recommended for the optical limiting applications.

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8

Wijaya, Karna, Iqmal Tahir, and Ahmad Baikuni. "THE SYNTHESIS OF Cr₂O₃-PILLARED MONTMORILLONITE (CrPM) AND ITS USAGE FOR HOST MATERIAL OF p-NITROANILINE." Indonesian Journal of Chemistry 2, no. 1 (2010): 12–21. http://dx.doi.org/10.22146/ijc.21928.

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The synthesis of Cr2O3-pillared montmorillonite (CrPM) and its usage for host material of p-nitroaniline have been conducted. The Cr2O3-pillared montmorillonite clays was prepared by a direct ion exchange method. First, the polyhydroxychromium as a pillaring spesies was intercalated into the interlayer region of the montmorillonite clays (purified clay in the monocation form), result in a montmorillonite-polyoxychromium intercalation compound. The precursors/pillaring spesies was not stable, hence it must be stabilized by calcination in order to transform the polyoxychromium via dehydration and dehydroxylation processes into Cr2O3. This oxide constituts the so-called pillar that prop the clay layers apart to a relatively large distance. The Cr2O3-pillared clays as a host material was added into ethanol solution saturated with p-nitroaniline, and mixture was stirred for 24 h at room temperature. The Na-montmorillonite, Cr2O3-pillared clay and p-nitroaniline-Cr2O3-pillared clay (pNA-CrPM) were characterized by X-Ray Diffraction (XRD), Gas Sorption Analysis, Infrared Spectroscopy (FTIR) and Activated Neutron Analysis (ANA) methods. The result of research showed that basal spacing (d001) of Cr2O3-pillared montmorillonite (CrPM) was 18,55 Å, meanwhile the basal spacing of the hydrated Na-montmorillonite was 14,43 Å. The specific surface area of the Cr2O3-pillared montmorillonite was 174,308 m2/g, whereas p-nitroaniline-Cr2O3-pillared clay (pNA-CrPM) was 133,331641 m2/g. This fact indicated that p-nitroaniline has been included into the pore of the Cr2O3-pillared clay. Keyword: montmorillonite, pillared-clay, ion exchange, intercalate.

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9

Yang, Ming, Qian Sun, and Cai Yun Li. "Preparation and Characterization of Molecularly Imprinted Polymer Microspheres of p-Nitroaniline." Applied Mechanics and Materials 71-78 (July 2011): 3411–14. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3411.

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Polystyrene microspheres were prepared by the emulsifier-free polymerization method. Using the polystyrene microspheres as seeds, p-nitroaniline as template molecules, the monodispersed molecularly imprinted polymer microspheres (MIPMs) were prepared by a single-step swelling and polymerization method. The monodispersed molecular imprinted polymers with porous structure were characterized by SEM, and UV-visible spectrophotometry. The adsorption performance of MIPMs for p-nitroaniline was investigated.

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10

A., P. MISHRA, K. SRIVASTAVA S., and VIBHUTI SRIVASTAVA (MISS). "Complexes of Cobalt-, Nickel- and Copper(II) with 2-Furfurylidene-p-nitroaniline and 2-Furfurylidene-m-nitroaniline Schiff Bases." Journal of Indian Chemical Society Vol. 73, Jun 1996 (1996): 261–63. https://doi.org/10.5281/zenodo.5897556.

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Inorganic Laboratories, Chemistry Department, Dr. H. S. Gour University, Sagar-470 003 <em>Manuscript received 5 September 1994, accepted 4 November 1994</em> Complexes of Cobalt-, Nickel- and Copper(II) with 2-Furfurylidene-<em>p</em>-nitroaniline and 2-Furfurylidene-m-nitroaniline Schiff Bases.

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11

Candan, M. M., E. Kendi, and H. Göker. "4-Chloro-N-(p-fluorobenzyl)-2-nitroaniline." Acta Crystallographica Section C Crystal Structure Communications 55, no. 5 (1999): 825–27. http://dx.doi.org/10.1107/s0108270199001456.

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12

Champagne, Benoît. "Vibrational polarizability and hyperpolarizability of p-nitroaniline." Chemical Physics Letters 261, no. 1-2 (1996): 57–65. http://dx.doi.org/10.1016/0009-2614(96)00928-1.

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13

Zhu, Jing, Rui Xie, Yueqiang Zhao, et al. "Separation and model correlation for p-nitroaniline and m-nitroaniline mixture with subcritical R134a." Separation and Purification Technology 227 (November 2019): 115706. http://dx.doi.org/10.1016/j.seppur.2019.115706.

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14

Singh, N. B., Aradhana Pathak, and Roland Fröhlich. "Solid-State Complexation Reaction between p-Benzoquinone and p-Nitroaniline." Australian Journal of Chemistry 56, no. 4 (2003): 329. http://dx.doi.org/10.1071/ch02075.

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Reaction between p-benzoquinone (p-BQ) and p-nitroaniline (p-NA) occurs both in the solid state and solution, forming a weak molecular addition compound (p-BQ)1 · (p-NA)1 in which the two components are associated by hydrogen bonding between one O atom of p-BQ and one H atom of the NH2 group of p-NA. Single crystals of the reaction product grown from solution belong to a monoclinic system.

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15

Gao, Jinzhang, Jing Liu, Jie Ren, Xiuli Niu, Yingying Zhang, and Wu Yang. "Determination of p-nitroaniline by the tartrate-acetone-Mn2+-KBrO3-H2SO4 double organic substrate oscillating system using non-equilibrium stationary state." Open Chemistry 7, no. 3 (2009): 298–302. http://dx.doi.org/10.2478/s11532-009-0060-9.

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AbstractThis paper described the determination of p-nitroaniline in a double organic substrate oscillating system of tartrate-acetone-Mn2+-KBrO3-H2SO4. Under the optimum conditions, temperature was chosen as a control parameter to design the bifurcation point and proposed a convenient method for determination of p-nitroaniline. Results showed that the system consisting of 3.5 mL 0.06 mol L−1 tartrate, 4.0 mL 0.7 mol L−1 H2SO4, 1.5 mL 1.5×10−4 mol L−1 MnSO4, 4.0 mL 0.4 mol L−1 acetone and 7.0 mL 0.05 mol L−1 KBrO3 was very sensitive to the surrounding at 33.5°C. A good linear relationship between the potential difference and the negative logarithm concentration of p-nitroaniline was obtained to be in the range of 2.50×10−7∼3.75×10−5 mol L−1 with a lower detection limit of 2.50×10−8 mol L−1.

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16

Sim, Fiona, Steven Chin, Michel Dupuis, and Julia E. Rice. "Electron correlation effects in hyperpolarizabilities of p-nitroaniline." Journal of Physical Chemistry 97, no. 6 (1993): 1158–63. http://dx.doi.org/10.1021/j100108a010.

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17

Costela, A., I. García-Moreno, J. Dabrio, and R. Sastre. "Photophysics and photochemistry of p-nitroaniline as photoinitiator." Journal of Photochemistry and Photobiology A: Chemistry 109, no. 1 (1997): 77–86. http://dx.doi.org/10.1016/s1010-6030(97)00100-7.

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18

Đaković, Marijana, Tomislav Portada, and Tin Klačić. "N-(4-Methylbenzyl)-3-nitroaniline." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1967. http://dx.doi.org/10.1107/s1600536812024348.

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In the title compound, C14H14N2O2, the angle between the mean plane of the N-methyl-3-nitroaniline system (r.m.s. deviation = 0.0185 Å) and the p-tolyl unit is 89.79 (4)°. In the crystal, hydrogen-bonded chains running along [10-1] are generated by the linking of neighbouring molecules via N—H...O and C—H...O hydrogen bonds involving the 3-nitroaniline systems and forming R 2 2(8) motifs.

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19

Reyes, Jeremiah, Andrew Nuss, and Monika Gulia-Nuss. "Analyzing Blood Digestion: Estimation of Active Trypsin Levels in the Mosquito Midgut." Cold Spring Harbor Protocols 2023, no. 4 (2023): pdb.prot108224. http://dx.doi.org/10.1101/pdb.prot108224.

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TheNα-benzoyl-dl-arginine 4-nitroanilide hydrochloride (BApNA) assay is widely used to quantify trypsin in mosquito midguts and is highly sensitive. BApNA is a chromogenic substrate for proteolytic enzymes such as trypsin and amidase. Hydrolysis of BApNA at the bond between the arginine and the p-nitroaniline moieties releases the chromophore p-nitroaniline, which is detected by colorimetric analysis. The intensity of the color is directly proportional to the amount of trypsin in the solution. Here, we present a trypsin measurement assay specifically using the BApNA substrate.

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20

NAIR, RASHMI S., FREDERICK R. JOHANNSEN, GEORGE J. LEVINSKAS, and JAMES B. TERRILL. "Subchronic Inhalation Toxicity of p-Nitroaniline and p-Nitrochlorobenzene in Rats." Toxicological Sciences 6, no. 4 (1986): 618–27. http://dx.doi.org/10.1093/toxsci/6.4.618.

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21

MARCHEWKA, M. K., H. RATAJCZAK, and S. DEBRUS. "INFRARED SPECTRUM AND NONLINEAR OPTICAL PROPERTIES OF p-NITROANILINE-L-TARTARIC ACID (2:1) MOLECULAR COMPLEX." Journal of Nonlinear Optical Physics & Materials 12, no. 01 (2003): 113–21. http://dx.doi.org/10.1142/s0218863503001274.

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The crystals of a new molecular complex, i.e. p-nitroaniline with L-tartaric acid were obtained by slow evaporation of an aqueous solution at room temperature. Room temperature powder infrared measurements were carried out. Tentative assignment for most bands was done. Very strong and broad absorption in the region of 3200–1800 cm-1 of infrared spectrum is observed. This notable vibrational effect suggests the presence of intense hydrogen-bonded network in the crystal structure of the complex. Second harmonic generation (SHG) efficiency d eff = 3.85 d eff (KDP). Some spectral features of this new crystal are referred to corresponding one for two other crystals comprising p-nitroaniline molecule i.e. p-nitroanilinium perchlorate and p-nitroanilinium-p-toluene-sulphonate.

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22

Kimura, Y., M. Fukuda, O. Kajimoto, and M. Terazima. "Study on the vibrational energy relaxation of p-nitroaniline, N,N-dimethyl-p-nitroaniline, and azulene by the transient grating method." Journal of Chemical Physics 125, no. 19 (2006): 194516. http://dx.doi.org/10.1063/1.2387170.

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23

Cox, S. D., T. E. Gier, G. D. Stucky, and J. Bierlein. "Inclusion tuning of nonlinear optical materials: switching the SHG of p-nitroaniline and 2-methyl-p-nitroaniline with molecular sieve hosts." Journal of the American Chemical Society 110, no. 9 (1988): 2986–87. http://dx.doi.org/10.1021/ja00217a057.

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24

Veerakumar, Pitchaimani, Namasivayam Dhenadhayalan, King-Chuen Lin, and Shang-Bin Liu. "Highly stable ruthenium nanoparticles on 3D mesoporous carbon: an excellent opportunity for reduction reactions." Journal of Materials Chemistry A 3, no. 46 (2015): 23448–57. http://dx.doi.org/10.1039/c5ta06875d.

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25

Alshibeh Alwattar, Nisreen, Florence Vacandio, Laurent Vassalo, Thierry Djenizian, Bruno Coulomb, and Jean-Luc Boudenne. "Effects of Mode of Preparation of Titanium Dioxide Nanotube Arrays on Their Photocatalytic Properties: Application to p-Nitroaniline Degradation." Micro 3, no. 1 (2023): 369–81. http://dx.doi.org/10.3390/micro3010025.

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The aim of this study was to investigate the photoactivity of dioxide titanium (TiO2) nanotube films depending on different structure factors including pore size, tube length, tube wall thickness and crystallinity. Aqueous p-nitroaniline was used as a probe to assess the photocatalytic activity of titanium dioxide nanotube layers under UV irradiations. Self-organized titanium dioxide nanotube thin films were prepared by electrochemical anodization of titanium (Ti) foils and Ti thin films sputtered onto silicon (Si). The amorphous as-formed titanium nanotube layers were then annealed at different temperatures ranging from 450 to 900 °C in order to form crystalline phases. The structure and the morphology of the films were characterized by surface analysis techniques and scanning electron microscopy, respectively. The photocatalytic activity of the resulting TiO2 thin films was evaluated by monitoring the UV degradation of p-nitroaniline by UV spectrophotometry and by determining nitrification yields of by ion chromatography. The highest photocatalytic activity was exhibited for titanium nanotubes annealed at 450 °C. The presence of rutile -obtained for an annealing temperature of 900 °C—appeared to reduce the photodegradation yield of p-nitroaniline. Finally, the TiO2 nanotubes obtained from Ti foils revealed the most efficient photocatalytic properties.

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26

Jayachandrabal, Balachandramohan, Priit Tikker, and Sergei Preis. "Oxidation of aqueous p-Nitroaniline by pulsed corona discharge." Separation and Purification Technology 297 (September 2022): 121473. http://dx.doi.org/10.1016/j.seppur.2022.121473.

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27

Matsushima, Ryoka, Kiyonari Hiramatsu, and Naomichi Okamoto. "Second-harmonic generation from mixed crystals of p-nitroaniline." Journal of Materials Chemistry 3, no. 10 (1993): 1045. http://dx.doi.org/10.1039/jm9930301045.

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28

Zaitu, S., Y. Miwa, and T. Taga. "1:1 Molecular Complex of Theophylline and p-Nitroaniline." Acta Crystallographica Section C Crystal Structure Communications 51, no. 11 (1995): 2390–92. http://dx.doi.org/10.1107/s010827019500864x.

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29

Huang, K. S., D. Britton, and M. C. Etter. "p-Nitroaniline–3,5-Dinitromethyl Salicylate (1:1) Co-Crystal." Acta Crystallographica Section C Crystal Structure Communications 52, no. 11 (1996): 2868–71. http://dx.doi.org/10.1107/s0108270196008864.

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30

Ferro, D., and V. Piacente. "Heat of vaporization of o-, m- and p-nitroaniline." Thermochimica Acta 90 (August 1985): 387–89. http://dx.doi.org/10.1016/0040-6031(85)87121-5.

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31

Boucetta, A., B. Benali, A. Kadiri, F. Ghailane, C. Cazeau-Dubroca, and G. Nouchi. "Etude en luminescence UV—visible de la p-nitroaniline." Spectrochimica Acta Part A: Molecular Spectroscopy 50, no. 13 (1994): 2249–59. http://dx.doi.org/10.1016/0584-8539(93)e0022-o.

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32

El-Shabouri, S. "Determination of certain phenothiazine drugs with diazotized p-nitroaniline." Talanta 32, no. 10 (1985): 999–1001. http://dx.doi.org/10.1016/0039-9140(85)80221-6.

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33

Cui, Ma-Lin, Guo-Shi Zhang, Ze-Wen Kang, et al. "Iridium nanoclusters for highly efficient p-nitroaniline fluorescence sensor." Microchemical Journal 189 (June 2023): 108520. http://dx.doi.org/10.1016/j.microc.2023.108520.

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34

Revathi, K., Shajesh Palantavida, and Baiju Kizhakkekilikoodayil Vijayan. "Effective Reduction of p-Nitroaniline to p-Phenylenediamine Using Cu-CuO Nanocomposite." Materials Today: Proceedings 9 (2019): 633–38. http://dx.doi.org/10.1016/j.matpr.2018.10.386.

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35

NAIR, R. "Subchronic inhalation toxicity of p-nitroaniline and p-nitrochlorobenzene in rats*1." Fundamental and Applied Toxicology 6, no. 4 (1986): 618–27. http://dx.doi.org/10.1016/0272-0590(86)90174-0.

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36

Wei, Feng, Xinyi Cai, Junqi Nie, et al. "A 1,2,3-triazolyl based conjugated microporous polymer for sensitive detection of p-nitroaniline and Au nanoparticle immobilization." Polymer Chemistry 9, no. 27 (2018): 3832–39. http://dx.doi.org/10.1039/c8py00702k.

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37

Yuan, Haoran, Denian Li, Yan Liu, Xizhe Xu, and Chuanxi Xiong. "Nitrogen-doped carbon dots from plant cytoplasm as selective and sensitive fluorescent probes for detecting p-nitroaniline in both aqueous and soil systems." Analyst 140, no. 5 (2015): 1428–31. http://dx.doi.org/10.1039/c4an01869a.

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38

Wu, Pengyan, Yanhong Liu, Yang Li, et al. "A cadmium(ii)-based metal–organic framework for selective trace detection of nitroaniline isomers and photocatalytic degradation of methylene blue in neutral aqueous solution." Journal of Materials Chemistry A 4, no. 42 (2016): 16349–55. http://dx.doi.org/10.1039/c6ta06997e.

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39

Patnaik, Lalit N., and Sarojini Das. "Conformation ofp-dimethylaminobenzylidene-p-nitroaniline,p-nitrobenzylidene-p-dimethylaminoaniline, their stilbene and azobenzene derivatives." International Journal of Quantum Chemistry 27, no. 2 (1985): 135–44. http://dx.doi.org/10.1002/qua.560270204.

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40

Zeng, Ying-Jie, Xiao-Ling Wu, Hui-Rong Yang, Min-Hua Zong та Wen-Yong Lou. "1,4-α-Glucosidase from Fusarium solani for Controllable Biosynthesis of Silver Nanoparticles and Their Multifunctional Applications". International Journal of Molecular Sciences 24, № 6 (2023): 5865. http://dx.doi.org/10.3390/ijms24065865.

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In the study, monodispersed silver nanoparticles (AgNPs) with an average diameter of 9.57 nm were efficiently and controllably biosynthesized by a reductase from Fusarium solani DO7 only in the presence of β-NADPH and polyvinyl pyrrolidone (PVP). The reductase responsible for AgNP formation in F. solani DO7 was further confirmed as 1,4-α-glucosidase. Meanwhile, based on the debate on the antibacterial mechanism of AgNPs, this study elucidated in further depth that antibacterial action of AgNPs was achieved by absorbing to the cell membrane and destabilizing the membrane, leading to cell death. Moreover, AgNPs could accelerate the catalytic reaction of 4−nitroaniline, and 86.9% of 4-nitroaniline was converted to p-phenylene diamine in only 20 min by AgNPs of controllable size and morphology. Our study highlights a simple, green, and cost-effective process for biosynthesizing AgNPs with uniform sizes and excellent antibacterial activity and catalytic reduction of 4-nitroaniline.

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41

Hong, Haitao, Ni Wu, Mingxi Han, et al. "An anthracene based conjugated triazine framework as a luminescent probe for selective sensing of p-nitroaniline and Fe(iii) ions." Materials Chemistry Frontiers 5, no. 17 (2021): 6568–74. http://dx.doi.org/10.1039/d1qm00686j.

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42

Nie, Yong Fu, Qian Wang, Xiang Ying Chen, and Zhong Jie Zhang. "Synergistic effect of novel redox additives of p-nitroaniline and dimethylglyoxime for highly improving the supercapacitor performances." Physical Chemistry Chemical Physics 18, no. 4 (2016): 2718–29. http://dx.doi.org/10.1039/c5cp06147d.

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43

Pu, Yanyan, Zongchao Yu, Fengqin Wang, Yiyuan Fu, Tao Yan, and Honglin Cheng. "Selective fluorescence sensing ofp-nitroaniline and Fe3+ions by luminescent Eu-based metal-organic framework." Sensor Review 39, no. 2 (2019): 149–61. http://dx.doi.org/10.1108/sr-08-2017-0153.

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PurposeThe purpose of this study is to develop luminescence sensors for the detection of nitroaromatic compounds (NACs) and metal ions to protect human health and prevent environmental pollution.Design/methodology/approachThe composition and morphology of Eu-metal-organic frameworks (MOF) (1) were well characterized by powder X-ray diffraction, elemental analyses, Fourier-transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and scanning electron microscopy. The emission spectrum displays that 1 has significant characteristic emission bands of Eu(III) ions. The authors further investigated the fluorescence sensing performances of 1 to NACs and metal ions.FindingsThe results show that Eu-MOF (1) exhibits significant fluorescence quenching effect toward p-nitroaniline and Fe3+ions with good stability and recyclability. This means that 1 can be used as a multifunctional sensing material for the detection of p-nitroaniline and Fe3+ions.Originality/valueThe authors have successfully synthesized a fluorescence Eu-based sensing material under hydrothermal conditions. In addition, the fluorescence property and sensing performances for detecting NACs and metal ions were studied. The results suggest that 1 has highly selective fluorescence quenching toward p-nitroaniline and Fe3+ions with not only high sensitivity and selectivity but also excellent stability and recyclability. Furthermore, this study has confirmed that the multifunctional MOF material is very useful in environment pollutants’ detection and monitoring.

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Cai, Lei, Zhaohui Zhang, Haimei Xiao, Shan Chen, and Jinli Fu. "An eco-friendly imprinted polymer based on graphene quantum dots for fluorescent detection of p-nitroaniline." RSC Advances 9, no. 71 (2019): 41383–91. http://dx.doi.org/10.1039/c9ra08726e.

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An eco-friendly fluorescent molecularly imprinted polymer anchored on the surface of graphene quantum dots (GQDs@MIP) was developed with an efficient sol–gel polymerization for highly sensitive and selective determination of p-nitroaniline (p-NA).

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R. Fadhel, Sahar, Najwa I. Abdulla, and Intidhar D. Sulaiman. "The Spectrophotometric Determination of Olanzapine via Coupling with Diazotized p-Nitroaniline." Iraqi Journal of Pharmaceutical Sciences ( P-ISSN 1683 - 3597 E-ISSN 2521 - 3512) 25, no. 1 (2017): 42–49. http://dx.doi.org/10.31351/vol25iss1pp42-49.

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A new spectrophotometric method has been developed for the assay of olanzapine (OLN.) in pure and dosage forms. The method is based on the diazocoupling of (OLN.) with diazotized p-nitroaniline in alkaline medium to form a stable brown colored water-soluble azo dye with a maximum absorption at 405 nm. The variables that affect the completion of reaction have been carefully optimized. Beerâ€™s law is obeyed over the concentration range of (0.5-45.0 Î¼g.mL-1) with a molar absorptivity of 1.5777Ã—104 L.mol-1.cm-1. The limit of detection was 0.3148 Î¼g.mL-1 and Sandellâ€™s sensitivity value was 0.0198 Î¼g.cm-2. The proposed method has been applied successfully to the determination of olanzapine in tablet pharmaceutical preparations. Keywords: Spectrophotometry, Olanzapine, Diazotization, p-nitroaniline, tablet dosage form.

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Li, Xiaofang, Changqian Wang, Bo Li, Yu Shao, and Danzhen Li. "Efficient light harvesting over a CdS/In2O3 photonic crystal photocatalyst for hydrogenation of 4-nitroaniline to p-phenylenediamine." Physical Chemistry Chemical Physics 18, no. 40 (2016): 27848–57. http://dx.doi.org/10.1039/c6cp04929j.

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Tan, Jiang Yue. "Studies on Pre-Treatment of Wastewater Containing Nitroaromatic Compound by Ultrasonic Cavitation." Advanced Materials Research 518-523 (May 2012): 2213–17. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.2213.

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In this paper, ultrasonic cavitation degradation was applied to treat the wastewater containing nitroaromatic compound. The factors influence to treatment effect such as the ultrasonic power and frequency, the wastewater initial pH value, were investigated by experiment. The experimental results showed that air-blasting in ultrasonic cavitation treatment could effectively improve treatment effect. The wastewater（COD:2650 mg•L-1,BOD5:240 mg•L-1，p-nitroaniline：490 mg•L-1，nitrobenzene:100 mg•L-1）was treated by ultrasonic cavitation degradation, the removal rate of p-nitroaniline,nitrobenzene and COD could be reached 91.3%,90.6% and 83.9% respectively after 3h. Biodegradability of the wastewater (B/C ratio ) can be increased to 0.4 , which satisfied the requirement for the subsequent biochemical processes.

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Ishida, Kirara, Yushi Nakamura, Tetsuo Ohta, and Yohei Oe. "A Molecular Probe with Both Chromogenic and Fluorescent Units for Detecting Serine Proteases." Molecules 26, no. 2 (2021): 482. http://dx.doi.org/10.3390/molecules26020482.

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A molecular probe with l-phenylalanine p-nitroanilide and l-lysin 4-methylcoumaryl-7-amide, in which these amino acid derivatives are connected through a succinic-acid spacer, was prepared. Trypsin and papain were detected by blue-fluorescence emission of generated 7-amino-4-methylcoumarin (AMC). α-Chymotrypsin and nattokinase were detected from both the blue-fluorescence emission of AMC and the UV absorbance of p-nitroaniline. In addition, different time courses of p-nitroaniline and AMC were observed between the reaction of P1 with α-chymotrypsin and that with nattokinase. In the case of nattokinase, both the fluorescence emission and UV absorbance slowly increased. In contrast, the increasing UV absorbance was saturated at the early stage of the reaction of the present probe with chymotrypsin, whereas the fluorescence emission continuously increased in the following stages.

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Ravichandran, C., D. Vasudevan, and P. N. Anantharaman. "Indirect reduction of p-nitroaniline to p-phenylenediamine at a Ti/TiO2 electrode." Journal of Applied Electrochemistry 22, no. 2 (1992): 179–81. http://dx.doi.org/10.1007/bf01023821.

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Xu, J. B., T. S. Jing, and P. Z. Lang. "Effect of p-Nitrobromobenzene and p-Nitroaniline on ATPase Activity of Carp Tissues." Microchemical Journal 52, no. 2 (1995): 188–93. http://dx.doi.org/10.1006/mchj.1995.1084.

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