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Journal articles on the topic 'Anthracene'

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1

Boyd, Simon, Nuno M. Cabral, Kenneth P. Ghiggino, Martin J. Grannas, W. David McFadyen, and Peter A. Tregloan. "Nickel complexation and photophysics of alkylanthracenyl dioxocyclam macrocycle derivatives." Australian Journal of Chemistry 53, no. 8 (2000): 651. http://dx.doi.org/10.1071/ch00106.

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Ligands H2L in which (10-R-anthracen-9-yl)methyl moieties (R = H, Me, Et) are covalently joined (6-position) to the 5,7-dioxocyclam macrocycle framework have been prepared and their nickel(II) complexes isolated and characterized. X-Ray crystal structures of NiIIL (R = H, Me) complexes show that in both structures the anthracene moieties are folded around towards the mean plane of the macrocycles; dihedral angles between the mean anthracene and macrocyclic planes of c. 22˚ are subtended. 1H n.m.r. spectrometry indicates that the folded conformations are retained in solution. Absorption and flu
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2

Boyd, Simon, Kenneth P. Ghiggino, and W. David McFadyen. "Photochemistry of Anthracene-Appended Cobalt(III) Cyclam Complexes." Australian Journal of Chemistry 61, no. 8 (2008): 585. http://dx.doi.org/10.1071/ch08189.

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The photochemistry of two anthracene-appended cobalt(iii) cyclam complexes is explored with a view to demonstrate a photoactivated ligand release process. The ligand exchange processes that occur in the complexes cis-[CoL(NO2)(ONO)]+ and trans-[CoL(NO2)(ONO)]+ in which L = 6-(anthracen-9-ylmethyl)-1,4,8,11-tetraazacyclotetradecane were monitored upon illumination of the anthracenyl chromophore at 360 nm in the presence of a large excess of thiocyanate. The trans-[CoL(NO2)(ONO)]+ complex underwent a ligand exchange reaction in the absence of light and displayed an enhancement of the reaction up
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3

Byrne, Andrew J., Sandra A. Bright, James P. McKeown, et al. "Synthesis and Pro-Apoptotic Effects of Nitrovinylanthracenes and Related Compounds in Chronic Lymphocytic Leukaemia (CLL) and Burkitt’s Lymphoma (BL)." Molecules 28, no. 24 (2023): 8095. http://dx.doi.org/10.3390/molecules28248095.

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Chronic lymphocytic leukaemia (CLL) is a malignancy of the immune B lymphocyte cells and is the most common leukaemia diagnosed in developed countries. In this paper, we report the synthesis and antiproliferative effects of a series of (E)-9-(2-nitrovinyl)anthracenes and related nitrostyrene compounds in CLL cell lines and also in Burkitt’s lymphoma (BL) cell lines, a rare form of non-Hodgkin’s immune B-cell lymphoma. The nitrostyrene scaffold was identified as a lead structure for the development of effective compounds targeting BL and CLL. The series of structurally diverse nitrostyrenes was
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4

Marzoq Hadi Al Fahd, Thawab M. R. Albugami, Mohamed T. Selim, and Mohamed H. EL-Saeid. "Impact of Photo-remediation on Anthracene PAHs in treated wastewater using ZnO/TiO2/H2O2 Catalysis." Open Access Research Journal of Science and Technology 11, no. 1 (2024): 059–70. http://dx.doi.org/10.53022/oarjst.2024.11.1.0068.

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The remediation of carcinogenic Polycyclic Aromatic Hydrocarbons )PAHs( such as Anthracene (3 Rings) in different sources of wastewater was examined using a mix of Zink Oxide, Titanium Oxide, and Hydrogen peroxide (ZnO/ TiO2/H2O2). Eleven wastewater sources were collected from different industrial wastewater and treated wastewater (5 Farms, Main treatment plant, Tanning factory treated wastewater, Tanning factory non-treated wastewater, Carton factories, Factories Lake, and Grease refining plants. Anthracene was extracted by QuEChERS methodology and Analyzed by GCMSMS/TQD. Remediation techniqu
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5

Choi, Michael T. M., Qingchuan Yang, Thomas C. W. Mak, and Dennis K. P. Ng. "Synthesis and Molecular Structure of a Head-to-Tail [4+4] Dimer of a Hexa-Substituted Anthracene." Journal of Chemical Research 2002, no. 12 (2002): 644–46. http://dx.doi.org/10.3184/030823402103171122.

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6

Tang, Jian-Hong, and Yu-Wu Zhong. "Anthracene-Containing Metallacycles and Metallacages: Structures, Properties, and Applications." Inorganics 10, no. 7 (2022): 88. http://dx.doi.org/10.3390/inorganics10070088.

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Due to its highly conjugated panel-like structure and unique photophysical and chemical features, anthracene has been widely used for fabricating attractive and functional supramolecular assemblies, including two-dimensional metallacycles and three-dimensional metallacages. The embedded anthracenes in these assemblies often show synergistic effects on enhancing the desired supramolecular and luminescent properties. This review focuses on the metallasupramolecular architectures with anthracene-containing building blocks, as well as their applications in host-guest chemistry, stimulus response,
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7

Khanra, Somnath, Sabyasachi Ta, Milan Ghosh, Sudeshna Chatterjee, Pallabi Mukherjee, and Debasis Das. "Al3+ triggered aggregation induced emission of an anthracence based azine derivative in SDS medium." New Journal of Chemistry 44, no. 20 (2020): 8477–85. http://dx.doi.org/10.1039/d0nj00968g.

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Single crystal X-ray structurally characterized anthracene appended unsymmetrical azine derivative, viz. 4-(anthracen-9-ylmethylene-hydrazonomethyl)-2-methoxy-phenol (L5) shows Al<sup>3+</sup> assisted aggregation induced emission in SDS medium.
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8

Roitershtein, D. M., K. A. Lyssenko, I. E. Nifant’ev, and M. E. Minyaev. "Lutetium Cyclopentadienyl Complex with the 2,6-Di-tert-Butylanthracene Dianion." Russian Journal of Coordination Chemistry 49, no. 6 (2023): 369–76. http://dx.doi.org/10.1134/s1070328423700586.

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Abstract The reaction of 2,6-di(tert-butyl)anthracene with potassium graphite and monocyclopentadienyllutetium dichloride tetrahydrofuranate in THF gave the anthracenide complex [(η5-C5H5)Lu(η2-2,6-tBu2C14H8)(THF)2] (I), which was studied by X-ray diffraction (CCDC no. 2215512). Complex I crystallizes in the orthorhombic space group P212121. The structural rigidity of the Lu(O)2Cp(anthracene) crystallographic node was demonstrated. The retention of the structure of complex I in solution was confirmed by NMR techniques.
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9

Roitershtein, D. M., K. A. Lyssenko, I. E. Nifant’ev, and M. E. Minyaev. "Lutetium Cyclopentadienyl Complex with the 2,6-Di-tert-Butylanthracene Dianion." Координационная химия 49, no. 6 (2023): 367–74. http://dx.doi.org/10.31857/s0132344x22600497.

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The reaction of 2,6-di(tert-butyl)anthracene with potassium graphite and monocyclopentadienyllutetium dichloride tetrahydrofuranate in THF gave the anthracenide complex [(η5-C5H5)Lu(η2-2,6-tBu2C14H8)(THF)2] (I), which was studied by X-ray diffraction (CCDC no. 2215512). Complex I crystallizes in the orthorhombic space group P212121. The structural rigidity of the Lu(O)2Cp(anthracene) crystallographic node was demonstrated. The retention of the structure of complex I in solution was confirmed by NMR techniques.
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10

Lamm, Jan-Hendrik, Johanna Glatthor, Jan-Henrik Weddeling, et al. "Polyalkynylanthracenes – syntheses, structures and their behaviour towards UV irradiation." Org. Biomol. Chem. 12, no. 37 (2014): 7355–65. http://dx.doi.org/10.1039/c4ob00735b.

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A series of 1,5-, 1,8-, 9,10- and 1,8,10-alkynyl-substituted anthracenes have been synthesised. Amongst others, 9,10-bis[(trimethylsilyl)ethynyl]anthracene was photo-dimerised. The photodimer is thermally unstable as was investigated by VT NMR spectroscopy.
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11

Liu, Dan, Chenguang Li, Shujie Niu, et al. "A case study of tuning the crystal polymorphs of organic semiconductors towards simultaneously improved light emission and field-effect properties." Journal of Materials Chemistry C 7, no. 20 (2019): 5925–30. http://dx.doi.org/10.1039/c9tc01321k.

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Simultaneously improved light emission and field-effect performance were achieved for an anthracene derivative, 1,4-di(anthracen-9-yl)buta-1,3-diyne (DABD) in its β-phase crystals, suggesting their potential applications in integrated optoelectronic devices.
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12

Mikhalyova, Elena A., Matthias Zeller, Jerry P. Jasinski, Manpreet Kaur та Anthony W. Addison. "Bis[3-(anthracen-9-yl)pentane-2,4-dionato-κ2 O,O′](N,N-dimethylformamide-κO)[tris(pyrazol-1-yl-κN 2)hydroborato]europium(III)". Acta Crystallographica Section E Crystallographic Communications 78, № 2 (2022): 103–7. http://dx.doi.org/10.1107/s2056989022000676.

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The title compound, [Eu(C9H10BN6)(C19H15O2)2(C3H7NO)] or [TpEu(Anthracac)2(DMF)], was synthesized by reaction of a tris(pyrazolyl)borate (Tp−) Eu3+ complex with 3-(anthracen-9-yl)pentane-2,4-dione (HAnthracac) in the presence of triethylamine. In the title compound, Eu3+ is located in an octavertex square-pyramidal coordination environment. In the two Anthracac− ligands, the anthracene and nearly planar acetylacetonate fragments are almost orthogonal. Neighboring molecules of TpEu(Anthracac)2(DMF) are connected in the crystal by intermolecular van der Waals interactions, while π-stacking inter
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13

Yamada, S., B. W. Smith, E. Voigtman, and J. D. Winefordner. "Xenon-Lamp-Excited Fluorimetry of Several Anthracene Derivatives in a Supersonic Jet." Applied Spectroscopy 39, no. 3 (1985): 513–15. http://dx.doi.org/10.1366/0003702854248773.

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A simple and highly sensitive supersonic jet fluorimeter using a xenon arc lamp is described. Well-resolved fluorescence spectra were obtained for anthracene, 9-methylanthracene, and 9-chloroanthracene. Simultaneous identification of three compounds out of the mixture of four anthracenes was successful.
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14

DeVoe, R. J., M. R. V. Sahyun, Einhard Schmidt, N. Serpone, and D. K. Sharma. "Electron transfer sensitized photolysis of 'onium salts." Canadian Journal of Chemistry 66, no. 2 (1988): 319–24. http://dx.doi.org/10.1139/v88-055.

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We have studied the anthracene-sensitized photolyses of both diphenyliodonium and triphenylsulphonium salts in solution using both steady-state and laser flash photolysis techniques. Photoproducts, namely, phenylated anthracenes along with iodobenzene or diphenylsulphide, respectively, are obtained from both salts with quantum efficiencies of ca. 0.1 at 375 nm. We infer the intermediacy of diphenyliodo and triphenylsulphur radicals formed by single electron transfer from the singlet-excited anthracene. We have developed a quantitative model of this chemistry, and identify the principal sources
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15

Xu, Wen Jian, Tie Sheng Li, Gong Zhao, Yang Jie Wu, and Tokuji Miyashita. "Photolithography and Photochemical Reaction of Copolymer Containing Anthracene in Langmuir-Blodgett Films." Advanced Materials Research 418-420 (December 2011): 698–701. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.698.

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A series of copolymer containing photoactive anthracene group, poly(N-dodecylmeth- acrylamide-co-anthrylmethylacrylate) p(DDMA-co-AnMA) were synthesized. Their molecular arrangement and photolithographic properties in Langmuir–Blodgett (LB) films were investigated. The copolymer p(DDMA-co-AnMA) could form stable monolayer at air/water interface and could be transferred onto solid supports, giving Y-type uniform LB films. The result showed that the irradiation with difference light wavelength leaded to changes of copolymer LB films in their chemical structure, concerning only the anthracence un
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16

Kristinaityte, Kristina, Mateusz Urbańczyk, Adam Mames, Mariusz Pietrzak, and Tomasz Ratajczyk. "Photoreactivity of an Exemplary Anthracene Mixture Revealed by NMR Studies, including a Kinetic Approach." Molecules 26, no. 21 (2021): 6695. http://dx.doi.org/10.3390/molecules26216695.

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Anthracenes are an important class of acenes. They are being utilized more and more often in chemistry and materials sciences, due to their unique rigid molecular structure and photoreactivity. In particular, photodimerization can be harnessed for the fabrication of novel photoresponsive materials. Photodimerization between the same anthracenes have been investigated and utilized in various fields, while reactions between varying anthracenes have barely been investigated. Here, Nuclear Magnetic Resonance (NMR) spectroscopy is employed for the investigation of the photodimerization of two exemp
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17

PRABHU, G., R. REVATHI, N. NAGARAJAN, and R. RENGANATHAN. "Spectroscopic and DFT Analysis of (Z)-3-(Anthracen-9-yl)-2-(naphthalen-1-yl)acrylonitrile Fluorophore." Asian Journal of Chemistry 35, no. 10 (2023): 2445–50. http://dx.doi.org/10.14233/ajchem.2023.28276.

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Fluorophore molecule (Z)-3-(anthracen-9-yl)-2-(naphthalen-1-yl)acrylonitrile (ANCN) containing anthracene as donor (D), acrylonitrile as acceptor (A) and naphthalene as donor (D) has been synthesized and characterized. ANCN is crystallized in monoclinic crystal system with P21/c space group. The absorption spectra of the compounds are dominated by intramolecular charge transitions that arise from the anthracene core to the acceptor groups. The compounds display distinct dual and single emission behaviour in different solvent environments. The CIE colour chromaticity diagram shows that the emis
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18

Becker, H., L. Hansen, BW Skelton, and AH White. "(E)-1-(9-Anthryl)-2-(10-methyl-9-anthryl)ethene: Molecular Structure and Spectroscopic Properties." Australian Journal of Chemistry 38, no. 5 (1985): 809. http://dx.doi.org/10.1071/ch9850809.

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(E)-1-(9-Anthryl)-2-(10-methyl-9-anthryl) ethelle has been synthesized from 10-methyl-9-anthraldehyde and (9-anthrylmethyl) triphenylphosphonium bromide, and its crystal structure has been determined by X-ray diffraction. Its molecular geometry was found to be such as to have the planes of the two anthracene moieties form an angle of 70.8°, the plane of the ethene bond bring twisted out of the planes of the anthracenes by an angle of about 55°. The intermolecular arrangement of parallel adjacent molecules in the crystal lattice is characterized by shifts about the short and long axes of the an
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19

Kästner, M., S. Streibich, M. Beyrer, H. H. Richnow, and W. Fritsche. "Formation of Bound Residues during Microbial Degradation of [14C]Anthracene in Soil." Applied and Environmental Microbiology 65, no. 5 (1999): 1834–42. http://dx.doi.org/10.1128/aem.65.5.1834-1842.1999.

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ABSTRACT Carbon partitioning and residue formation during microbial degradation of polycyclic aromatic hydrocarbons (PAH) in soil and soil-compost mixtures were examined by using [14C]anthracenes labeled at different positions. In native soil 43.8% of [9-14C]anthracene was mineralized by the autochthonous microflora and 45.4% was transformed into bound residues within 176 days. Addition of compost increased the metabolism (67.2% of the anthracene was mineralized) and decreased the residue formation (20.7% of the anthracene was transformed). Thus, the higher organic carbon content after compost
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20

Dalil, Inas Azoz, and Ali Abdulhamza Al-Fanharawi. "Study the Concentration of PAHS in Al-Rumayth River Water-Iraq." IOP Conference Series: Earth and Environmental Science 1259, no. 1 (2023): 012037. http://dx.doi.org/10.1088/1755-1315/1259/1/012037.

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Abstract This study’s goals were to look into PAH concentrations and compositions as well as chemical and physical water characteristics. In Al –Rumaytha river. This study was conducted out during from November 2021 to October 2022. According to the results, sixteen PAHs compounds were found in the water, including According to the results, water contained sixteen different PAHs components including Acenaphthene and Acenaphthylene ranged between (47.1-91.5, 24.9-55.7) ppm, The values Anthracene, Naphthalene, phenanthene and fluorine results ranged (14.9-48.9 ppm,18.9 -68.7ppm,8.9-41.7 ppm,8.5-
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21

Heo, Yeongjae, Hyukmin Kwon, Sangwook Park, et al. "A High-Efficiency Deep Blue Emitter for OLEDs with a New Dual-Core Structure Incorporating ETL Characteristics." Molecules 28, no. 22 (2023): 7485. http://dx.doi.org/10.3390/molecules28227485.

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In this study, we introduced the weak electron-accepting oxazole derivative 4,5-diphenyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)oxazole (TPO) into both anthracene and pyrene moieties of a dual core structure. Ultimately, we developed 2-(4-(6-(anthracen-9-yl)pyren-1-yl)phenyl)-4,5-diphenyloxazole (AP-TPO) as the substitution on the second core, pyrene, and 4,5-diphenyl-2-(4-(10-(pyren-1-yl)anthracen-9-yl)phenyl)oxazole (TPO-AP) as the substitution on the first core, anthracene. Both materials exhibited maximum photoluminescence wavelengths at 433 and 443 nm in solution and emi
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22

Flayyih, Samah M., Abdul Hakeem Sh Mohammad, and Saygin M. NurI. "A Study of the Optical and Structural Properties of the Organic Semiconductor Anthracene and Carbazole." International Academic Journal of Science and Engineering 10, no. 2 (2023): 39–50. http://dx.doi.org/10.9756/iajse/v10i2/iajse1007.

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This research aims to study the optical properties of anthracene and Carbazole compounds. We aim to write a comprehensive introduction to the physical properties of chains of organic compounds similar to the properties of anthracene compounds and their internal structure. We will discuss the variable absorption coefficient values according to the infrared curves and compare them with UV VIS curves. The researchers turned their attention to the coherent and characteristic structure of anthracene derivatives, which are found as building blocks based on their auto luminescent properties. The rese
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23

Raji, M., and G. Jayalalitha. "Harary Index of Anthracene’s Chemical Graph Using Domination." Webology 18, Special Issue 01 (2021): 107–11. http://dx.doi.org/10.14704/web/v18si01/web18047.

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Consider a Anthracene’s Chemical Graph as a connected finite simple graph. In such a chemical graph, vertices and edges signify atoms and bonds respectively. Harary Index is a distance based on the topological index. This paper obtains Harary Index of Chemical Graph of Anthracene using Reciprocal Minimum Dominating Distance Matrix.
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24

Niu, EP, AWH Mau, and KP Ghiggino. "Dye-Sensitized Photooxidation of Anthracene and Its Derivatives in Nafion Membrane." Australian Journal of Chemistry 44, no. 5 (1991): 695. http://dx.doi.org/10.1071/ch9910695.

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The methylene blue (MB) sensitized photooxidations of anthracene (AN), 9,10-diphenyl-anthracene (DPA) and 2-dimethylaminoanthracene (DMA) have been studied in ethanol and in Nafion, a perfluorinated polymer with sulfonate groups. Spectroscopic studies indicate that the incorporated chromophores are heterogeneously distributed in the micelle-like polymer. The uncharged aromatic hydrocarbons are located in the non-polar polymer backbone region while the positively charged species reside at the interface of aqueous cluster regions in the membrane. The MB-sensitized photooxidations of all anthrace
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25

Wang, Hongbo, Qian Liu, Dejiang Liu, Runzhou Su, Jinglin Liu, and Yuanzuo Li. "Computational Prediction of Electronic and Photovoltaic Properties of Anthracene-Based Organic Dyes for Dye-Sensitized Solar Cells." International Journal of Photoenergy 2018 (August 1, 2018): 1–17. http://dx.doi.org/10.1155/2018/4764830.

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Three kinds of anthracene-based organic dyes for dye-sensitized solar cells (DSSCs) were studied, and their structures are based on a push–pull framework with anthracenyl diphenylamine as the donor connected to a carboxyphenyl or carboxyphenyl-bromothiazole (BTZ) as the acceptor via an acetylene bridge. The photoelectric properties of the three dyes were investigated using density functional theory (DFT). The simulations indicate that the improvement of anthracene-based dyes (the addition of BTZ and the change of alkyl groups to alkoxy chains) can reduce the energy gap and produce a red shift.
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26

Atherton, J. C. C., and S. Jones. "Diels–Alder reactions of anthracene, 9-substituted anthracenes and 9,10-disubstituted anthracenes." Tetrahedron 59, no. 46 (2003): 9039–57. http://dx.doi.org/10.1016/j.tet.2003.09.014.

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Chen, Chongyi, Yan Sun, Yue Zhao, et al. "Anthracene-induced formation of highly twisted metallacycle and its crystal structure and tunable assembly behaviors." Proceedings of the National Academy of Sciences 118, no. 27 (2021): e2102602118. http://dx.doi.org/10.1073/pnas.2102602118.

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Polycyclic aromatic hydrocarbons (PAHs) continue to attract increasing interest with respect to their applications as luminescent materials. The ordered structure of the metal−organic complex facilitates the selective integration of PAHs that can be tuned to function cooperatively. Here, a unique highly twisted anthracene-based organoplatinum metallacycle was prepared via coordination-driven self-assembly. Single-crystal X-ray diffraction analysis revealed that the metallacycle was twisted through the cooperation of strong π···π stacking interactions and steric hindrance between two anthracene
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28

Berg, David J., and Brendan Twamley. "Crystal structure of a binuclear mixed-valence ytterbium complex containing a 2-anthracene-substituted phenoxide ligand." Acta Crystallographica Section E Crystallographic Communications 75, no. 9 (2019): 1367–71. http://dx.doi.org/10.1107/s205698901901154x.

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Reaction of 2-(anthracen-9-yl)phenol (HOPhAn, 1) with divalent Yb[N(SiMe3)2]2·2THF in THF–toluene mixtures affords the mixed-valence YbII–YbIII dimer {[2-(anthracen-9-yl)phenolato-κO]bis(tetrahydrofuran)ytterbium(III)}-tris[μ-2-(anthracen-9-yl)phenolato]-κ4 O:O;κO:1,2-η,κO-{[2-(anthracen-9-yl)phenolato-κO]ytterbium(II)} toluene trisolvate, [Yb2(C20H13O)5(C4H8O)2]·3C7H7 or [YbIII(THF)2(OPhAn)](μ-OPhAn)3[YbII(OPhAn)]·3C7H7 (2), as the major product. It crystallized as a toluene trisolvate. The Yb—O bond lengths in the crystal structure of this dimer clearly identify the YbII and YbIII centres. I
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Zimmermann, C., M. Mohr, H. Zipse, R. Eichberger, and W. Schnabel. "Photoionization of anthracene and anthracene derivatives." Journal of Photochemistry and Photobiology A: Chemistry 125, no. 1-3 (1999): 47–56. http://dx.doi.org/10.1016/s1010-6030(99)00094-5.

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30

Tolopka, Juan I., Maya Svriz, Tamara M. Ledesma, Eugenia Lanari, José M. Scervino, and Javier E. Moreno. "Environmental Pollutant Anthracene Induces ABA-Dependent Transgenerational Effects on Gemmae Dormancy in Marchantia polymorpha." Plants 13, no. 21 (2024): 2979. http://dx.doi.org/10.3390/plants13212979.

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Anthracene, a polycyclic aromatic hydrocarbon (PAH) from fossil fuel combustion, poses significant environmental threats. This study investigates the role of abscisic acid (ABA) in the anthracene tolerance of the liverwort Marchantia polymorpha using mutants deficient in ABA perception (Mppyl1) or biosynthesis (Mpaba1). In this study, we monitored the role of ABA in the anthracene tolerance response by tracking two ABA-controlled traits: plant growth inhibition and gemmae dormancy. We found that the anthracene-induced inhibition of plant growth is dose-dependent, similar to the growth-inhibiti
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31

Borovikova, Natal'ya Anatol'yevna. "EXTRACTION SPECIMENS BASED ON THE BUCKTHORN BARK AND METHODOLOGICAL APPROACHES TO IDENTIFY ANTHRACENE DERIVATIVES INCLUDED." chemistry of plant raw material, no. 2 (November 20, 2018): 73–81. http://dx.doi.org/10.14258/jcprm.2019023722.

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The article provides an overview of drugs based on buckthorn bark included in the State register of medicines of the Russian Federation and patented in recent years. The methods of quantitative determination of anthracenes-derived raw materials of buckthorn according to the state Pharmacopoeia of the Russian Federation XI and XIII editions and the European Pharmacopoeia are analyzed and presented in the comparative aspect. The main representatives of the anthracene-derived buckthorn are shown for a number of sources, taking into account modern phytochemical studies.&#x0D; The algorithm of deve
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32

Merry, Thechano, and Prabhakar Maddela. "Efficient Synthesis and Characterization of Anthracene based 1,3,5-Trisubstituted Pyrazoline Derivatives." Asian Journal of Chemistry 33, no. 3 (2021): 600–604. http://dx.doi.org/10.14233/ajchem.2021.23038.

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A new series of anthracene scaffold containing 1,3,5-trisubstituted pyrazoline derivatives (3a-p) were synthesized and well characterized by 1H NMR, 13C NMR, FTIR, mass spectroscopic and elemental analysis methods. The reactions were carried out from anthracenyl pyrazolines (1a-p) and benzoyl chloride (2) in presence of anhydrous K2CO3 in acetone under reflux conditions for 2-7 h. The obtained yields were good to excellent (80-94%).
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33

Pagni, Richard M., Gleb Mamantov, George Hondrogiannis, and Aditya Unni. "Photoinduced Electron Transfer Reactions of Anthracene in CF3SO3H–CF3CO2H." Journal of Chemical Research 23, no. 8 (1999): 486–87. http://dx.doi.org/10.1177/174751989902300816.

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Photolysis of anthracene in a mixture consisting of 2% CF3SO3H in CF3CO2H (w/w), where anthracene is partially protonated, gives a mixture of oxidized, neutral and reduced monomeric and dimeric products, initiation of this chemistry being photoinduced electron transfer from anthracene to protonated anthracene.
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34

Dong, Zhenming, Bo Liu, Xinxin Cui, and Yufang Liu. "2-(Anthracen-9-yl)-10-methoxybenzo[h]quinoline acetone hemisolvate." Acta Crystallographica Section E Structure Reports Online 68, no. 8 (2012): o2535. http://dx.doi.org/10.1107/s1600536812031807.

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The asymmetric unit of the title structure, C28H19NO·0.5C3H6O, comprises one 2-(anthracen-9-yl)-10-methoxybenzo[h]quinoline molecule and an acteone molecule with an occupany of 0.5. The solvent molecule is disordered around a centre of symmetry. Its occupancy was determined from NMR data and kept fixed during the refinement. The two conjugated ring systems of the molecule are almost perpendicular to each other; the interplanar angle between the anthracene and quinoline ring systems is 84.9 (2)°.
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35

van Herwijnen, René, Dirk Springael, Pieter Slot, Harrie A. J. Govers, and John R. Parsons. "Degradation of Anthracene by Mycobacterium sp. Strain LB501T Proceeds via a Novel Pathway, through o-Phthalic Acid." Applied and Environmental Microbiology 69, no. 1 (2003): 186–90. http://dx.doi.org/10.1128/aem.69.1.186-190.2003.

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ABSTRACT Mycobacterium sp. strain LB501T utilizes anthracene as a sole carbon and energy source. We analyzed cultures of the wild-type strain and of UV-generated mutants impaired in anthracene utilization for metabolites to determine the anthracene degradation pathway. Identification of metabolites by comparison with authentic standards and transient accumulation of o-phthalic acid by the wild-type strain during growth on anthracene suggest a pathway through o-phthalic acid and protocatechuic acid. As the only productive degradation pathway known so far for anthracene proceeds through 2,3-dihy
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36

Haarmann, Klaus, Edwin Haselbach, and Paul Suppan. "Triplet State Lifetime of Anthracene in Benzene Solution." CHIMIA 41, no. 6 (1987): 198. https://doi.org/10.2533/chimia.1987.198.

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The decay kinetics of the triplet state absorption of anthracene in benzene have been measured in conditions of laser flash photolysis, as a function of anthracene concentration and of laser light intensity. It is concluded that concentration quenching of triplet state anthracene by ground state anthracene is the major bimolecular deactivation process.
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37

Knieß, Astrid, Margit Gruner та Roland Mayer. "Reaktionsverhalten von β-Oxo-carbonsäurederivaten der Anthracenreihe bei der Synthese von Pyrazolen / On the Reaction Behavior of ß-Oxo Carbonic Acid Derivatives of the Anthracene Series in Pyrazole Synthesis". Zeitschrift für Naturforschung B 54, № 9 (1999): 1133–37. http://dx.doi.org/10.1515/znb-1999-0908.

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ß-Oxo-1 and 9-anthracenepropionate (6 and 7) reacts with DMF-acetale to enaminones 10 and 11. The reaction of 2-(dimethylamino)methylen-substituted ß-oxo-1 -anthracenepropionate (10) with hydrazines yields 5-(l-anthracenyl)-pyrazol-4-carboxylates (13). In contrast, the cyclocondensation of 3-(9-anthracenyl)-2-(dimethylamino)methylen-3-oxo-propionate (11) with hydrazine hydrochlorides gives 4-(9-anthracenoyl)-5-hydroxy-pyrazoles (14). This is caused by the sterical hindrance of the carbonyl group of the anthracene derivatives in position 9; thus, the cyclocondensation proceeds via reaction of t
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38

Heinis, Thomas, Swapan Chowdhury, and Paul Kebarle. "Electron affinities of naphthalene, anthracene and substituted naphthalenes and anthracenes." Organic Mass Spectrometry 28, no. 4 (1993): 358–65. http://dx.doi.org/10.1002/oms.1210280416.

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39

Kabay, Nilgün, Burak Doğan Bozer, Aslı Öztürk Kiraz, Yasemin Baygu, İzzet Kara, and Yaşar Gök. "Synthesis, characterization and structural computational investigation of novel Zn(II) phthalocyanines containing peripheral anthracene moieties." Journal of Porphyrins and Phthalocyanines 23, no. 07n08 (2019): 943–59. http://dx.doi.org/10.1142/s1088424619500913.

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New zinc(II) phthalocyanines (ZnPc-I and ZnPc-II) containing four peripheral anthracene pendant groups were synthesized by cyclotetramerization of (E)-4-(3-(4-((anthracen-9-yl-methylene)amino)phenoxy)propoxy)phthalonitrile and 4-(3-(4-((anthracen-9-ylmethyl)amino)phenoxy)propoxy)phthalonitrile. All compounds were characterized using a combination of analytical and spectroscopic techniques such 1H, [Formula: see text]C NMR, FT-IR, UV-vis and MS spectral data. The molecular geometry and gauge including atomic orbital (GIAO) 1H and [Formula: see text]C chemical shift values of the compounds in th
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40

Jelínek, Karel, Filip Uhlík, Zuzana Limpouchová, Pavel Matějíček, and Karel Procházka. "Copolymer Micelles with Polyelectrolyte Shell in Aqueous Media. A Mean-Field Study." Collection of Czechoslovak Chemical Communications 71, no. 5 (2006): 756–68. http://dx.doi.org/10.1135/cccc20060756.

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The multimolecular micelles formed by polystyrene-block-poly(methacrylic acid) (PS-PMA) copolymer and by hydrophobically modified PS-PMA copolymer with naphthalene and anthracene (PS-N-PMA-A) were studied by self-consistent field (SCF) calculations in aqueous media. The labeling with covalently bonded naphthalene between PS and PMA blocks and with anthracene at the free end of PMA blocks, which is suitable for experimental nonradiative excitation energy transfer (NRET) studies of PS-N-PMA-A micelles, modifies the structure of micellar shell. The study was aimed at understanding structure and b
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41

SUBHASH, C. BHATTACHARYA, and K. ROHATGI-MUKHBRJEE K. "Anthracene Sulphonates as Fluorescence Probes for Triton X-100 Micelles." Journal of Indian Chemical Society Vol. 63, Jan 1986 (1986): 50–55. https://doi.org/10.5281/zenodo.6240522.

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Physical Chemistry Laboratory, Jadavpur University, Calcutta-700 082 The emission properties of 1-anthracene sulphonate, 2-anthracene sulphonate, 1,5-&shy;anthracene disulphonate and 1,8-anthracene disnlphonate have been studied in Triton X-100 micellar medium. The changes in the emission characteristics as a function of surfactant concentration have been used for locating the site of residence of the fluorescent probes in the micelles.
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42

Vargas, M. C., R. Rodríguez, F. Sánchez, and N. Ramírez. "Transformación biológica de antraceno en suelo por Pleurotus ostreatus en condiciones de fermentación en estado sólido utilizando salvado de trigo y compost." CT&F - Ciencia, Tecnología y Futuro 2, no. 2 (2001): 43–50. http://dx.doi.org/10.29047/01225383.549.

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Postreatus was grown in a soil mixture contaminated with anthracene, wheat bran I and compost, in varying combinations. Assays with added bacteria and reinocularon of the fungus were also included. The results indicated that in many of the combinations, most of the anthracene was removed at the earliest sample time, 15 days. The most effective combination was spiked (anthracene-added) soil, fungus and compost and the addition of acclimated bacteria to this mixture inhibited anthracene removal. Analyses of extracts by high-pressure liquid chromatography (HPLC) indicated that -anthraquinone, was
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43

Klein, Hans-Friedrich, Klaus Ellrich, Susanne Lamac, Goetz Lull, Laszlo Zsolnai, and Gottfried Hüttner. "Anthracen- und Phenanthren-Cobalt-Verbindungen mit Trimethylphosphan-Liganden / Anthracene and Phenanthrene Cobalt Compounds Containing Trimethylphosphane Ligands." Zeitschrift für Naturforschung B 40, no. 10 (1985): 1377–82. http://dx.doi.org/10.1515/znb-1985-1023.

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Anthracene and phenanthrene complexes of zerovalent cobalt, Co(Cl4H10)(PMe3)3, are obtained by substitution of olefin in Co(olefin)(PMe3)3 (olefin = propene, cyclopentene). Ethene replaces the η2-bonded aromatic molecules. Substitution labile ligands L′ in hydridocobalt complexes CoH(L′)(PMe3)3 (L′ = N2, C4H8) give way to an anthracene or phenanthrene ligand and can in turn be replaced by carbon monoxide. η4-Coordinated anthracene in Co[Sn(C6H5)3](C14H10)(PMe3)2 is not replaced by CO under normal conditions. In η2-coordinated anthracene the bond between coordinated C-atoms in ring positions 2
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44

Tongpim, Saowanit, and Michael A. Pickard. "Growth ofRhodococcusS1 on anthracene." Canadian Journal of Microbiology 42, no. 3 (1996): 289–94. http://dx.doi.org/10.1139/m96-042.

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Three slow-growing bacteria were isolated from a mixed culture enriched for growth on anthracene, using creosote-contaminated soil as the inoculum. Organisms were shown to use anthracene by the production of a clear zone around the colony after a mineral salts agar plate was sprayed with anthracene. All three bacteria were nonmotile, nonsporulating, gram-positive rods and stained acid-fast. Physiological and biochemical tests, GC content, and cell wall lipid patterns of whole cell methanolysates indicated that they belonged to the Nocardia–Mycobacterium–Rhodococcus group. On the basis of these
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45

Ozolins, Reinis, Mara Plotniece, Karlis Pajuste, et al. "1,1′-{[3,5-Bis((dodecyloxycarbonyl)-4-phenyl-1,4-dihydropyridine-2,6-diyl]bis(methylene)}bis[4-(anthracen-9-yl)pyridin-1-ium] Dibromide." Molbank 2022, no. 3 (2022): M1438. http://dx.doi.org/10.3390/m1438.

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A synthesis of a cationic moiety and fluorescent moieties containing amphiphilic 1,4-dihydropyridine (1,4-DHP) derivatives was performed starting with the Hantzsch-type cyclization of dodecyl acetoacetate, phenylaldehyde and ammonium acetate. Bromination of the 2,6-dimethyl groups of a parent 1,4-DHP compound, followed by nucleophilic substitution of bromine with 4-(anthracen-9-yl)pyridine, produced the desired 1,1′-{[3,5-bis((dodecyloxycarbonyl)-4-phenyl-1,4-dihydropyridine-2,6-diyl]bis(methylene)}bis[4-(anthracen-9-yl)pyridin-1-ium] dibromide. The obtained target compound was fully character
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46

M.*, Poornachander Rao, Anitha Y., and Satyaprasad K. "Combined effect of Bacillus cereus CPOU13 and B. subtilis SPC14 on polycyclic aromatic hydrocarbons degradation in vitro." International Journal of Bioassays 5, no. 04 (2016): 4505. http://dx.doi.org/10.21746/ijbio.2016.04.0010.

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Biodegradation of polycyclic aromatic hydrocarbons (PAHs) with suitable bacterial strains conveys much interest in recent years. We studied biodegradation of PAHs namely phenanthrene, anthracene and pyrene using two efficient PAHs degrading strains, B. cereus CPOU13 and B. subtilis SPC14 in vitro experiments. Standard HPLC chromatograms for phenanthrene, anthracene and pyrene were plotted separately based on HPLC peak area values and Retension time of known concentrations of the test PAHs and using software, ‘Origin 6.0’. Biodegradation of PAHs mixture containing phenanthrene, anthracene and p
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47

Evdokimova, O. V., A. V. Beketova, and M. N. Lyakina. "Determination of Anthracene Derivatives in Herbal Medicines." Bulletin of the Scientific Centre for Expert Evaluation of Medicinal Products 11, no. 2 (2021): 104–14. http://dx.doi.org/10.30895/1991-2919-2021-11-2-104-114.

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The relevance of this study stems from the need for alignment of test methods used for identification and assay of anthracene derivatives in herbal preparations and herbal medicinal products. The aim of the study was to analyse Russian and international quality standards and to identify the most specific and sensitive test methods that could be used for herbal medicines containing anthracene derivatives. The comparative analysis of requirements in the Identification, Determination of major classes of bioactive compounds, and Assay parts of the Russian and foreign pharmacopoeial monographs for
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48

Shaaban, Mohamed T., Hamdy A. Abdelazim, and Gehad H. Zanoun. "Studies on Utilization and Degradation of Anthracene by Bacteria Isolated from Industrial Waste Water Areas in Egypt." Journal of Biochemistry, Microbiology and Biotechnology 6, no. 1 (2018): 35–40. http://dx.doi.org/10.54987/jobimb.v6i1.389.

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Industrial areas in Egypt has become one of the major routes of some wastes production as it discharges a large amount of petroleum hydrocarbons which possess severe hazardous effects on the surrounding environment. Polycyclic aromatic hydrocarbon (PAHs) is one of the most toxic organic pollutants, among this organic hydrocarbon is anthracene, which is highly carcinogenic. The environmental threat of anthracene to humans due to exposure through industrial effluent discharge and other combustion activities into the environment beside expensive nature of the physical and chemical remediation tec
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49

Kolade, O. Y., A. T. Oladiji, and A.3 gunnu. "Safeguarding Benefits of Curcumin on DNA Damage in Benzo(a)anthracene Treated Male Wistar Rats." GVU Journal of Science, Health and Technology (GVU-J. SHT) 10, no. 1 (2025): 68–71. https://doi.org/10.5281/zenodo.15347125.

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The integrity of genomic material is vital for organismal health, yet it is frequently compromised by environ-mental toxicants. This study evaluated the protective effects of curcumin against benzo[a]anthracene-inducedDNA damage in male Wistar rats. Five treatment groups were established: benzo[a]anthracene (1 mg) alone,benzo[a]anthracene (1 mg/kg bw) with curcumin at 50 mg/kg bw, 100 mg/kg bw, or 200 mg/kg bw, and a con-trol group receiving neither treatment. Following a 7-day acclimatisation period, rats were orally administeredbenzo[a]anthracene and curcumin every other day for 6 weeks. Aft
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50

Kyushin, Soichiro, та Yuya Suzuki. "Cooperation of σ–π and σ*–π* Conjugation in the UV/Vis and Fluorescence Spectra of 9,10-Disilylanthracene". Molecules 27, № 7 (2022): 2241. http://dx.doi.org/10.3390/molecules27072241.

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In 1996, we reported that silyl groups of 9,10-disilylanthracenes significantly affect the UV/Vis and fluorescence spectra. Although the results indicate that the silyl groups have strong electronic effects on anthracene, the details of the mechanisms responsible for this have not yet been clarified. This article describes the analysis of the UV/Vis and fluorescence spectra of 9,10-bis(diisopropylsilyl)anthracene by theoretical calculations. This study reveals that π conjugation of anthracene is extended by cooperation of σ–π and σ*–π* conjugation between the silyl groups and anthracene. This
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