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Journal articles on the topic 'Aromatic nuclei'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Vácha, R., J. Čechmánková, and J. Skála. "Polycyclic aromatic hydrocarbons in soil and selected plants." Plant, Soil and Environment 56, No. 9 (2010): 434–43. http://dx.doi.org/10.17221/7/2010-pse.

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The influence of soil load with polycyclic aromatic hydrocarbons (PAHs) on their contents in selected plants was investigated. A set of experiments was realized in three years. The influence of extreme soil load with PAHs (soil contaminated by floods and sludge application) on their content in plants was observed in a pot trial. A laboratory column extract trial investigated PAHs transfer from the soil into soil solution in different conditions. The results showed that the transfer of PAHs into plants is influenced mainly by chemical characteristics of the substances (the number and position o

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2

Korvezee, A. E., and F. E. C. Scheffer. "On substitutions in aromatic nuclei." Recueil des Travaux Chimiques des Pays-Bas 69, no. 4 (2010): 496–502. http://dx.doi.org/10.1002/recl.19500690415.

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3

Postigo, Al. "Aromatic radical perfluoroalkylation reactions." Canadian Journal of Chemistry 90, no. 6 (2012): 493–97. http://dx.doi.org/10.1139/v2012-026.

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This account intends to cover recent literature on radical perfluoroalkylation reactions of aromatic nuclei in organic and aqueous media. Emphasis will be placed on radical aromatic perfluoroalkylation reactions in water or aqueous media, with the aim of exploring aromatic radical reactivity in a benign environment.

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4

Kantlehner, Willi, Erwin Haug, Oliver Scherr, Edmont V. Stoyanov, Jochen Mezger, and Georg Ziegler. "Orthoamide, LX [1]. N,N,N’,N’-Tetraformylhydrazin – ein breit anwendbares Formylierungsmittel für aromatische Verbindungen / Orthoamide, LX [1]. N,N,N’,N’-Tetraformylhydrazine – a Formylation Agent for Aromatic Compounds of Wide Scope." Zeitschrift für Naturforschung B 59, no. 4 (2004): 357–65. http://dx.doi.org/10.1515/znb-2004-0402.

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KeywordsThe reagent system formed from N,N,N’,N’-tetraformylhydrazine (3) and aluminum chloride allows the formylation of aromatic compounds. The scope of the method is comparable with the Olah formylation and the Groß-Rieche procedure, since benzene and fluorobenzene can be formylated. Two formyl groups are transferred from 3 to the aromatic nuclei when a molar ratio 4:1:4 (aluminum chloride/3/aromatic compound) is chosen.

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5

Rozental, Ester, Moshe Goldberg, Harold Basch, and Shmaryahu Hoz. "Charge transfer complexes between azidopentazole and aromatic nuclei." Journal of Molecular Structure: THEOCHEM 674, no. 1-3 (2004): 153–57. http://dx.doi.org/10.1016/j.theochem.2004.02.001.

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6

KUMYKOV, R. M., A. B. ITTIEV, and K. V. BAMBETOV. "New polynaphthylimides based on 3,3'-diamino-4,4'-dichloroarylenes and aroylene-bis(naphthalic anhydrides) with improved solubility, thermal and fire resistance." Plasticheskie massy, no. 7-8 (October 25, 2022): 10–12. http://dx.doi.org/10.35164/0554-2901-2022-7-8-10-12.

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Soluble polynaphthylimides not previously described were obtained by reacting 3,3'-diamino-4,4'-dichloroarylenes with aroylene-bis(naphthalic anhydrides) containing dichloroethylene, ether, and carbonyl groups. The infl uence of introduced chlorine atoms into aromatic nuclei, dichloroethylene, carbonyl and methylene groups between the phenyl nuclei of the central fragments of macromolecules on the solubility, thermal and strength properties of the synthesized polymers has been studied.

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7

Ota, E., Yu Hongan, and S. Otani. "Growth of Condensed Aromatic Nuclei in Some Condensed Polynuclear Aromatic (COPNA) Resins by Heating." TANSO 1987, no. 128 (1987): 12–17. http://dx.doi.org/10.7209/tanso.1987.12.

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8

Suzuki, Satoshi, Thi Bach Tuyet Lam†, and Kenji Iiyama. "5-Hydroxyguaiacyl nuclei as aromatic constituents of native lignin." Phytochemistry 46, no. 4 (1997): 695–700. http://dx.doi.org/10.1016/s0031-9422(97)00348-8.

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9

Wang, Kailiang, Maoyun Lü, Ao Yu, Xiaoqing Zhu, and Qingmin Wang. "Iron(III) Chloride Catalyzed Oxidative Coupling of Aromatic Nuclei." Journal of Organic Chemistry 74, no. 2 (2009): 935–38. http://dx.doi.org/10.1021/jo8021633.

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10

Liu, Shiqi, Shuxun Sang, Tian Wang, Yi Du, Jinlong Jia, and Huihuang Fang. "The effects of CO2 on organic groups in bituminous coal and high-rank coal via Fourier transform infrared spectroscopy." Energy Exploration & Exploitation 36, no. 6 (2018): 1566–92. http://dx.doi.org/10.1177/0144598718764752.

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The interactions between supercritical CO2 and coal and their effects on changes in the coal pore structure and organic groups play a critical role in the CO2 geological storage-enhanced coalbed methane recovery. To investigate the effects of supercritical CO2 on organic groups in coals of different ranks and its mechanisms under different temperature and pressure conditions, CO2 sequestration processes in bituminous coals and high-rank coals were replicated using a high-pressure reactor. Four coal samples of different ranks were exposed to supercritical CO2 and water under three temperatures

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11

Kholghy, M. R., G. A. Kelesidis, and S. E. Pratsinis. "Reactive polycyclic aromatic hydrocarbon dimerization drives soot nucleation." Physical Chemistry Chemical Physics 20, no. 16 (2018): 10926–38. http://dx.doi.org/10.1039/c7cp07803j.

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Nucleation is an important yet poorly understood step in soot formation. Strong chemical bonds between PAH monomers are required as physical dimerization cannot explain soot formation at high temperatures. Dimers can be considered as soot nuclei as larger oligomers have negligible contribution.

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12

Kumykov, Ruslan M., and Arsen K. Vologirov. "NEW AROMATIC DINITRODERIVATIVES OF CHLORAL AS MONOMER FOR SYNTHESYS OF POLYESTER AND POLYHETERO-ARYLENE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 61, no. 2 (2018): 4. http://dx.doi.org/10.6060/tcct.20186102.5613.

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The synthesis of aromatic dinitroderivatives of chloral effectively used in production of soluble, heat and fire resistant polyester and polyhetero arylenes using in the reaction of aromatic nucleophilic replacement was studied. The groups of new aromatic dinitroderivatives containing chloral as central groups between the phenyl nuclei: dichlorethelyne, carbonyl, acetylene and methylene groups were considered. The synthesis conditions were improved for polyester polyesterketones, polyesteretherketones, poliftalimides and polynaphtalamids without substantially affecting the thermal and solid ch

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13

Kuznetsov, Peter, Budeebazar Avid, Ludmila Kuznetsova, et al. "Comprehensive Characterization of the Molecular Structure and Properties of Pitch-like Products from Coal Dissolution at Mild Temperature Using Heavy Solvents of Coal and Petroleum Origin." Materials 18, no. 7 (2025): 1660. https://doi.org/10.3390/ma18071660.

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The chemical composition and molecular structure of the pitch-like products obtained by liquid-phase reaction of bituminous coal with heavy hydrocarbon fractions of coal and petroleum origin as solvents at a moderate temperature were comprehensively characterized in terms of a new aromatic feedstock for needle coke and other valuable high-tech carbon materials. The molecular parameters of the products were characterized by using FTIR, 1H NMR, 13C NMR and XPS. Liquid-phase chromatography was used to analyze benzo(a)pyrene (BaP) as a carcinogenicity marker. The chemical composition and the chara

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14

Vitzthum, Veronika, Marc A. Caporini, Simone Ulzega, and Geoffrey Bodenhausen. "Broadband excitation and indirect detection of nitrogen-14 in rotating solids using Delays Alternating with Nutation (DANTE)." Journal of Magnetic Resonance 212, no. 1 (2011): 234–39. https://doi.org/10.1016/j.jmr.2011.06.013.

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A train of short rotor-synchronized pulses in the manner of Delays Alternating with Nutations for Tailored Excitation (DANTE) applied to nitrogen-14 nuclei (I = 1) in samples spinning at the magic angle at high frequencies (typically nu(rot) = 62.5 kHz so that tau(rot) = 16 mu s) allows one to achieve uniform excitation of a great number of spinning sidebands that arise from large first-order quadrupole interactions, as occur for aromatic nitrogen-14 nuclei in histidine. With routine rf amplitudes omega(1)(N-14)/(2 pi) = 60 kHz and very short pulses of a typical duration 0.5

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15

Asmadi, Mohd, Haruo Kawamoto, and Shiro Saka. "Thermal reactions of guaiacol and syringol as lignin model aromatic nuclei." Journal of Analytical and Applied Pyrolysis 92, no. 1 (2011): 88–98. http://dx.doi.org/10.1016/j.jaap.2011.04.011.

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16

Matysik, Jörg, Els Schulten, Alia Alia, et al. "Photo-CIDNP 13C Magic Angle Spinning NMR on Bacterial Reaction Centres: Exploring the Electronic Structure of the Special Pair and Its Surroundings." Biological Chemistry 382, no. 8 (2001): 1271–76. http://dx.doi.org/10.1515/bc.2001.158.

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Abstract Photochemically induced dynamic nuclear polarisation (photoCIDNP) in intact bacterial reaction centres has been observed by 13Csolid state NMR under continuous illumination with white light. Strong intensity enhancement of 13C NMR signals of the aromatic rings allows probing the electronic ground state of the two BChl cofactors of the special pair at the molecular scale with atomic selectivity. Differences between the two BChl cofactors are discussed. Several aliphatic 13C atoms of cofactors, as well as 13C atoms of the imidazole ring of histidine residue(s), show nuclearspin polarisa

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17

Elsabee, Maher Z., Rania E. Morsi, and Salah Selim. "High-performance wholly aromatic polyamide–hydrazides." High Performance Polymers 30, no. 4 (2017): 387–405. http://dx.doi.org/10.1177/0954008317699259.

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The review summarizes the various methods of preparing wholly aromatic polyamide–hydrazides (PAHs). Polyhydrazides are a class of polymers that possess in their repeating units one amide (–NHOC–) and one hydrazide (–CONHNHOC–) linking bond between appropriate aromatic nuclei. The review provides several figures of different molecular structures of PAH and expounds the methods of polymerization, low, high temperature, and phosphorylation polycondensation methods. Polyhydrazides exhibit some unique and potentially useful properties such as outstanding thermal and thermo-oxidative resistance, ver

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18

Silva-Ribeiro, A., A. C. Krabbe, C. M. Canelo, et al. "Polycyclic aromatic hydrocarbons and the ionized gas in galaxies with active nuclei." Monthly Notices of the Royal Astronomical Society 509, no. 1 (2021): 327–44. http://dx.doi.org/10.1093/mnras/stab3005.

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ABSTRACT We present a study for a sample of galaxies with active nuclei to characterize the main type of PAH molecules present in these objects and the local physical conditions of their irradiating sources, as well as the characteristics of the residing ionized gas, by combining optical and infrared data. Photoionization models were built with the cloudy code to reproduce optical emission line ratios in combination with PAH intensity ratios. We find that the species containing 10−82 carbon atoms are the most abundant in the sample. We suggest that family of species with only two or three fuse

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19

Diamond-Stanic, Aleksandar M., and George H. Rieke. "THE EFFECT OF ACTIVE GALACTIC NUCLEI ON THE MID-INFRARED AROMATIC FEATURES." Astrophysical Journal 724, no. 1 (2010): 140–53. http://dx.doi.org/10.1088/0004-637x/724/1/140.

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20

Kovacic, Peter, and Martin B. Jones. "Dehydro coupling of aromatic nuclei by catalyst-oxidant systems: poly(p-phenylene)." Chemical Reviews 87, no. 2 (1987): 357–79. http://dx.doi.org/10.1021/cr00078a005.

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21

Gilman, Henry, L. W. Rowe, and J. B. Dickey. "The hypnotic action of mixed ketones containing different types of aromatic nuclei." Recueil des Travaux Chimiques des Pays-Bas 52, no. 5 (2010): 395–98. http://dx.doi.org/10.1002/recl.19330520507.

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22

Cherchneff, I. "Nucleating Dust in Carbon-Rich AGB Stars." Symposium - International Astronomical Union 177 (2000): 331–36. http://dx.doi.org/10.1017/s0074180900002576.

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Chemical models of the inner circumstellar envelope of a typical carbon-rich AGB star are presented. The effect of pulsation-driven shocks on the gas close to the stellar photosphere is considered. The chemistry of dust condensation nuclei formation is described and applied to the gas layers close to the star. We derive formation yields for polycyclic aromatic hydrocarbon (PAH) species and their dimers and discuss their role in the condensation of dust.

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23

Liu, Muxin, Yuting Tao, Yuting Yang, and Zhiping Lei. "Structural Characterization of HyperCoal Extracts from the Depolymerization of Shengli Lignite Using NaOH/Methanol." Processes 13, no. 6 (2025): 1821. https://doi.org/10.3390/pr13061821.

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To develop efficient utilization technologies for lignite, HyperCoal was prepared from the depolymerization of Shengli lignite by reacting it with NaOH and methanol. A series of HyperCoal extracts were obtained using different solvents and characterized using elemental analysis, Fourier-transform infrared spectroscopy, gel permeation chromatography, and synchronous fluorescence spectroscopy. The results indicate that solvent polarity is the primary factor influencing both the extraction yield and the structure of the extracts as polar solvents can disrupt or break hydrogen bonds within the ext

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24

Strizhakov, Rodion, Andrey Kuzhelev, Viktor Tormyshev, and Elena Bagryanskaya. "Epr Spectroscopy Of Trityl Radicals: Specificities Of Hyperfine Interaction Of An Unpaired Electron With 13c Nuclei." Siberian Journal of Physics 11, no. 1 (2016): 100–106. http://dx.doi.org/10.54362/1818-7919-2016-11-1-100-106.

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The constants of hyperfine coupling between an unpaired electron and natural occurrence 13C have been registered for the representative series of trityl radicals. The analysis of hyperfine ac constantsrevealed their small if any dependence both on solvent, and origin and number of substituents attached at para-C atoms of TAM aromatic rings.

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25

Wang, Qingmin, Kailiang Wang, Yanna Hu, et al. "A Simple and Efficient Oxidative Coupling of Aromatic Nuclei Mediated by Manganese Dioxide." Synthesis 2010, no. 07 (2010): 1083–90. http://dx.doi.org/10.1055/s-0029-1219237.

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26

Sajiki, Hironao, Tomohiro Maegawa, and Akira Akashi. "A Mild and Facile Method for Complete Hydrogenation of Aromatic Nuclei in Water." Synlett 2006, no. 9 (2006): 1440–42. http://dx.doi.org/10.1055/s-2006-939719.

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27

Porkhun, V. I., I. L. Gonik, and S. S. Zhukov. "Development of Chemical Polarization of Nuclei During Photolysis of Benzoquinones with Aromatic Amines." Russian Journal of General Chemistry 88, no. 6 (2018): 1081–85. http://dx.doi.org/10.1134/s1070363218060051.

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28

Wang, Qingmin, Kailiang Wang, Yanna Hu, et al. "A Simple and Efficient Oxidative Coupling of Aromatic Nuclei Mediated by Manganese Dioxide." Synthesis 45, no. 18 (2013): 2626. http://dx.doi.org/10.1055/s-0033-1338536.

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29

Liu, Yanhong, Yingqin Wu, Yanqing Xia, Lantian Xing, Chuntao Tian, and Tianzhu Lei. "The methylation of aromatic nuclei — I: Implications for the geochemical evolution of gas." International Journal of Coal Geology 215 (November 2019): 103302. http://dx.doi.org/10.1016/j.coal.2019.103302.

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30

Remennikov, Grigoriy Ya. "Synthesis of Condensed Heterocycles, Containing Partially Saturated Pyrimidine Nuclei, from Aromatic Pyrimidine Derivatives." Journal of Heterocyclic Chemistry 54, no. 5 (2017): 2575–97. http://dx.doi.org/10.1002/jhet.2864.

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31

Kasumov, Veli T., Bünyamin Karabulut, Ibrahim Kartal, and Fevzi Köksal. "Synthesis And Spectroscopic Studies Of New Bis(N-1-hydroxy-2,6-Di-Fe/Tf-Butylphenyl- Salicylideneaminato)Cobalt(Ii) Complexes And Their Oxidation With PbO2." Zeitschrift für Naturforschung B 56, no. 8 (2001): 778–86. http://dx.doi.org/10.1515/znb-2001-0811.

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A series of new bis[N-(1-OH-2,6-di-tert-butylphenyl)salicylaldiminato]cobalt(II) complexes possessing one or two HO- and CH3O - substituents on the salicylaldehyde moiety were prepared, and their spectroscopic properties as well as their oxidation with PbO2 were examined. ESR data indicate that oxidation of the complexes produces stable phenoxyl radicals. All phenoxyl radicals have similar g-values and hyperfine coupling constants, which are influenced very little by the substituents and by coordination. The experimental observations indicate that the Co(L·x)2 radicals are ligand-localized and

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32

Kovtonyuk, Vladimir N., Yuri V. Gatilov, Pavel V. Nikul’shin, and Roman A. Bredikhin. "Synthesis of Polyfluorinated Thia- and Oxathiacalixarenes Based on Perfluoro-m-xylene." Molecules 26, no. 3 (2021): 526. http://dx.doi.org/10.3390/molecules26030526.

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Perfluorinated tetrathiacalix[4]arene was obtained by heating perfluoro-m-xylene with thiourea or 2,5-difluoro-4,6-bis(trifluoromethyl)benzene-1,3-dithiol at 90 °C. Interaction of perfluoro-m-xylene with resorcinol or orcinol under mild conditions and subsequent heating of the mixture with 2,5-difluoro-4,6-bis(trifluoromethyl)benzene-1,3-dithiol leads to polyfluorinated dioxadithiacalix[4]arenes. Triphenyl and pentaphenyl ethers formed by the interaction of perfluoro-m-xylene with resorcinol under heating with thiourea gives polyfluorinated oxathiacalixarenes containing six and five aromatic n

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33

Zhang, Xianghui, Henning Vieker, André Beyer, and Armin Gölzhäuser. "Fabrication of carbon nanomembranes by helium ion beam lithography." Beilstein Journal of Nanotechnology 5 (February 21, 2014): 188–94. http://dx.doi.org/10.3762/bjnano.5.20.

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The irradiation-induced cross-linking of aromatic self-assembled monolayers (SAMs) is a universal method for the fabrication of ultrathin carbon nanomembranes (CNMs). Here we demonstrate the cross-linking of aromatic SAMs due to exposure to helium ions. The distinction of cross-linked from non-cross-linked regions in the SAM was facilitated by transferring the irradiated SAM to a new substrate, which allowed for an ex situ observation of the cross-linking process by helium ion microscopy (HIM). In this way, three growth regimes of cross-linked areas were identified: formation of nuclei, one-di

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34

Cataldo, Franco, and Yeghis Keheyan. "Heavy petroleum fractions as possible analogues of carriers of the unidentified infrared bands." International Journal of Astrobiology 2, no. 1 (2003): 41–50. http://dx.doi.org/10.1017/s1473550403001381.

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The Fourier-transform infrared spectra and the electronic spectra of a series of petroleum fractions of different composition and origins have been studied. Furthermore, these fractions have been modified through the Scholl reaction, a reaction that causes an increase in the aromatic content of the fractions by causing the formation of polycyclic aromatic hydrocarbons (PAHs) or larger PAHs if they were already present in the pristine samples. It is shown that some heavily aromatic petroleum fractions are able to match the emission spectra of the protoplanetary nebula IRAS 22272+5435. Additiona

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35

Madhushree, Das Sarma, and Ghosh Subhojit. "Bioactivity of azomethines derived mechanochemically from 2-amino pyridine and studies on the effect of substituents on the reaction." Journal of Indian Chemical Society Vol. 97, Aug 2020 (2020): 1295–303. https://doi.org/10.5281/zenodo.5656750.

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Department of Chemistry, Acharya Prafulla Chandra College, North 24-Parganas, New Barrackpore-700 131, West Bengal, India <em>E-mail</em>: sgorganic1971@gmail.com <em>Manuscript received online 13 July 2020, accepted 01 August 2020</em> Azomethines with pyridine framework serve as excellent pharmacophore. A number of azomethine derivatives were synthesised from 2-aminopyridine and differently substituted aromatic aldehydes in excellent to almost quantitative yields through green, mechanochemical protocol. Influence of the substituents in the nuclei of aromatic aldehydes on the rate of the reac

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36

Teltayev, B., and T. Seilkhanov. "NMR-Spectroscopy Determination of Fragmentary Composition of Bitumen and its Components." Eurasian Chemico-Technological Journal 20, no. 2 (2018): 153. http://dx.doi.org/10.18321/ectj696.

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This paper represents and discusses the results of quantitative determination for fragmentary composition of road bitumen of grade BND 100/130 and its components (asphaltenes, resins and oils) by NMR spectroscopy method. Group chemical composition of the bitumen has been determined by adsorption chromatography method. It has been identified that the bitumen and its components consist only of aromatic and aliphatic protons, which account for 2.4‒10.2% and 9.8‒97.6% respectively. Availability of olefinic elements in them has not been identified. The most part (79‒81%) of nuclei of carbon atoms r

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37

Rigopoulou, D., F. R. Donnan, I. García-Bernete, et al. "Polycyclic aromatic hydrocarbon emission in galaxies as seen with JWST." Monthly Notices of the Royal Astronomical Society 532, no. 2 (2024): 1598–611. http://dx.doi.org/10.1093/mnras/stae1535.

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ABSTRACT We present a systematic study of mid-infrared spectra of galaxies including star-forming galaxies and active galactic nuclei observed with JWST MIRI-MRS and NIRSpec-IFU. We focus on the relative variations of the 3.3, 6.2, 7.7, 11.3, 12.7, and 17 $\mu$m polycyclic aromatic hydrocarbon (PAH) features within spatially resolved regions of galaxies including NGC 3256, NGC 7469, VV 114, II Zw96, and NGC 5728. Using theoretical PAH models and extending our earlier work, we introduce a new PAH diagnostic involving the 17 $\mu$m PAH feature. To determine the drivers of PAH band variations in

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38

Repich, Hlib, Svitlana Orysyk, Pavlo Savytskyi, and Vasyl Pekhnyo. "Synthesis and crystal structure ofN-(4-chlorophenyl)-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidin-2-amine." Acta Crystallographica Section E Crystallographic Communications 73, no. 1 (2017): 35–37. http://dx.doi.org/10.1107/s2056989016019629.

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The title compound, C13H12ClN5, was synthesized by the cyclization of 1-(4,6-dimethylpyrimidin-2-yl)-4-phenylthiosemicarbazide in the presence of Ni(NO3)2. The molecular structure of the compound is essentially planar. In the crystal, molecules form dimersviapairs of N—H...N hydrogen bonds between the H atom of the exocyclic amino group and the N atom at the 4-position of the triazole ring. The resulting dimers are packed into layers which are connected by π-stacking interactions between the aromatic systems of the pyrimidine and benzene nuclei, and between the triazole cores.

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39

Cherchneff, I. "Chemical models of AGB winds." Symposium - International Astronomical Union 178 (1997): 469–76. http://dx.doi.org/10.1017/s0074180900009621.

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We present chemical models of the inner circumstellar envelope of a typical carbon-rich AGB star. The effect of pulsation-driven shocks on the gas close to the stellar photosphere is considered. The chemistry of dust condensation nuclei formation is described and applied to the gas layers close to the star. We derive formation yields for polycyclic aromatic hydrocarbon (PAH) species and their dimers and discuss their role in the condensation of dust. Models of the chemistry of silicon- and sulfur-bearing molecules in the inner envelope are also presented.

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40

Sales, Dinalva A., M. G. Pastoriza, and R. Riffel. "POLYCYCLIC AROMATIC HYDROCARBON AND EMISSION LINE RATIOS IN ACTIVE GALACTIC NUCLEI AND STARBURST GALAXIES." Astrophysical Journal 725, no. 1 (2010): 605–14. http://dx.doi.org/10.1088/0004-637x/725/1/605.

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41

Weininger, Ulrich, Michal Respondek, Christian Löw, and Mikael Akke. "Slow Aromatic Ring Flips Detected Despite Near-Degenerate NMR Frequencies of the Exchanging Nuclei." Journal of Physical Chemistry B 117, no. 31 (2013): 9241–47. http://dx.doi.org/10.1021/jp4058065.

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42

Torii, Sigeru, Kouji Akiyama, Hidetoshi Yamashita, and Tsutomu Inokuchi. "Synthesis ofdl-Shikonin by Vanadium(II)-Assisted Cross-Coupling and Electrooxidation of Aromatic Nuclei." Bulletin of the Chemical Society of Japan 68, no. 10 (1995): 2917–22. http://dx.doi.org/10.1246/bcsj.68.2917.

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43

Liu, Yanhong, Yingqin Wu, Yanqing Xia, Lantian Xing, Chuntao Tian, and Tianzhu Lei. "A dataset representing the impact of aromatic nuclei on the carbon isotope of gases." Data in Brief 29 (April 2020): 105101. http://dx.doi.org/10.1016/j.dib.2019.105101.

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44

Galabov, Boris, Sonia Ilieva, Gergana Koleva, Wesley D. Allen, Henry F. Schaefer III, and Paul von R. Schleyer. "Structure-reactivity relationships for aromatic molecules: electrostatic potentials at nuclei and electrophile affinity indices." Wiley Interdisciplinary Reviews: Computational Molecular Science 3, no. 1 (2012): 37–55. http://dx.doi.org/10.1002/wcms.1112.

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45

Johnson, Glenn R., Barth F. Smets, and Jim C. Spain. "Oxidative Transformation of Aminodinitrotoluene Isomers by Multicomponent Dioxygenases." Applied and Environmental Microbiology 67, no. 12 (2001): 5460–66. http://dx.doi.org/10.1128/aem.67.12.5460-5466.2001.

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ABSTRACT The electron-withdrawing nitro substituents of 2,4,6-trinitrotoluene (TNT) make the aromatic ring highly resistant to oxidative transformation. The typical biological transformation of TNT involves reduction of one or more of the nitro groups of the ring to produce the corresponding amine. Reduction of a single nitro substituent of TNT to an amino substituent increases the electron density of the aromatic nucleus considerably. The comparatively electron-dense nuclei of the aminodinitrotoluene (ADNT) isomers would be expected to be more susceptible to oxygenase attack than TNT. The hyp

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Bodykov, D. U., T. M. Seilkhanov, M. Nazhipkyzy, A. S. Toylybayev, and R. Salakhov. "NMR-Spectrometric Determination of the Fragmented Oil Composition from the Karazhanbas and Zhangurshi Oil Deposits." Eurasian Chemico-Technological Journal 20, no. 3 (2018): 229. http://dx.doi.org/10.18321/ectj726.

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The methods of 1 H, 13C NMR-spectroscopy were used to study the fragmentary compositions of oil from the Karazhanbas, Zhangurshi deposits (Kazakhstan) and heavy oil residues obtained before and after the electrohydraulic effect of water hammer after topping a light fraction of oil products. Their fragmentary composition were determined by the value of integrated intensities of 1 H, 13C NMR signals of the oil under study. The obtained results have shown that the composition of oil samples understudy includes terminal CH3-groups of long alkyl chains having a value of 0.87 ppm. The presence of lo

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Ramesh, Aswathy, Rakesh Kumar Jat, and R. Arunkumar. "Pharmacological Evaluation of Novel 1,3,4-Oxadiazole Derivatives." International Journal of Medical Sciences and Pharma Research 10, no. 1 (2024): 26–34. http://dx.doi.org/10.22270/ijmspr.v10i1.88.

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A series of 2, 5- disubstituted- 1, 3, 4-oxadiazole derivatives (Ox1-Ox10) are synthesized by the ring condensation reaction followed by rearrangement of salicylic acid and phenyl acetic acid with various aromatic acids in presence of phosphorous oxychloride as cyclizing agent. Structure of the new derivatives are confirmed by spectral analysis. Those derivatives having high Pa value in PASS software are subjected to antibacterial, anticancer and antidiabetic studies which yield promising reports. This study helps and stimulate the researcher to exploit the oxadiazole nuclei for the developmen

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Ladhari, N., G. Hayet, and L. Harrabi. "STUDY OF THE BIODEGRADABILITY OF SODIUM SALT FROM THE CONDENSATION PRODUCT OF NAPHTHALENE SULPHONIC ACIDS AND FORMALDEHYDE." AUTEX Research Journal 5, no. 2 (2005): 113–19. http://dx.doi.org/10.1515/aut-2005-050207.

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Abstract The biodegradability of dispersants (naphthalenesulfonate formaldehyde condensates), used with disperse dyes, has been evaluated using different techniques such as chemical oxygen demand (COD), UV-spectroscopic analysis and tonometry. A biomass was used from industrial waste water which was acclimated for six months prior to use. The study has shown that biodegradation involves two steps: first, the cleavage of the CH2 bridges; second, the degradation of the aromatic nuclei. We identified a series of bacteria (Pseudomonas cepacia, Pseudomonas vesicularis, Pseudomonas stutzeri, Pseudom

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Angu Bala Ganesh K S V, Sujeet Shekhar Sinha, Kesavi Durairaj, and Abdul Sahabudeen K. "Ultrastructural changes of Basolateral Amygdaloid nuclei in the Sprague Dawley rats brain following exposure to naphthalene balls." International Journal of Research in Pharmaceutical Sciences 12, no. 2 (2021): 1272–75. http://dx.doi.org/10.26452/ijrps.v12i2.4676.

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Naphthalene is a bicyclic aromatic constituent commonly used in different domestic and marketable applications comprising soil fumigants, lavatory scent disks and mothballs. Accidentally, workers, children and animals are exposed to naphthalene mothballs, so there is a need to study the pathology behind this chemical toxicity. The current study was carried out to assess the ultra structural changes of basolateral amygdaloid nuclei in the Sprague Dawley rats brain in association to naphthalene toxicity. The toxicity model group was administered with naphthalene (200 and 400mg) using corn oil as

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Krueger, Rachel A., and Guillaume Blanquart. "Predicting the photoresponse of soot nuclei: Spectroscopic characteristics of aromatic aggregates containing five-membered rings." Combustion and Flame 217 (July 2020): 85–92. http://dx.doi.org/10.1016/j.combustflame.2019.10.028.

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