Results 291 to 300 of about 106,905 (354)

Dynamics of Pyrene-Dimer Association and Ensuing Pyrene-Dimer Dissociation

The Journal of Physical Chemistry A, 2020
To address the possible role of pyrene dimers in soot, chemical dynamics simulations are reported to provide atomistic details for the process of collisional association of pyrene dimers and ensuing decomposition of pyrene dimers. The simulations are performed at 600, 900, 1200, 1600, and 2000 K temperatures (T) with different collisional impact ...
Debdutta Chakraborty, Hans Lischka, William L. Hase   +2 more
openaire   +2 more sources

Twisted pyrene-fused azaacenes

Chemical Communications, 2014
An approach for introducing twists in pyrene-fused azaacenes is reported. Depending on the volume and the rigidity of the silyl groups, different-sized twist angles, which oscillate between 4° and 24°, are induced along the longitudinal conjugated backbone.
More, Sandeep, Choudhary, Sunil, Higelin, Alexander, Krossing, Ingo, Melle-Franco, M., Mateo-Alonso, Aurelio   +5 more
openaire   +4 more sources

Pyrene-Loaded Polypyrrole Microvessels

Langmuir, 2011
The encapsulation of guest molecules within polymeric hollow nano- or microscale structures is a rapidly developing field of interdisciplinary research due to a variety of applications ranging from drug delivery and sensor fabrication to nanoscale synthesis and bioinspired mineralization.
Daria, Kępińska, Gary J, Blanchard, Paweł, Krysiński, Jarosław, Stolarski, Krystyna, Kijewska, Maciej, Mazur   +5 more
openaire   +2 more sources

The fundamental frequencies of pyrene and pyrene-d10

Spectrochimica Acta Part A: Molecular Spectroscopy, 1971
Abstract The infrared spectra of pyrene and pyrene- d 10 both in solution and in the solid have been measured down to 50 cm −1 . This data was complemented by laser-Raman studies of single crystal samples and of solutions in benzene, carbon disulphide and carbon tetrachloride.
A. Bree, R.A. Kydd, T.N. Misra, V.V.B. Vilkos   +3 more
openaire   +1 more source

Anisotropic Magnetoelectric Coupling and Cotton-Mouton Effects in the Organic Magnetic Charge-Transfer Complex Pyrene-F4TCNQ.

ACS Applied Materials and Interfaces, 2018
Magnetoelectric coupling is of high current interest because of its potential applications in multiferroic memory devices. Although magnetoelectric coupling has been widely investigated in inorganic materials, such observations in organic materials are ...
Yuying Yang, Guangfeng Liu, Jie Liu, Mengmeng Wei, Zhongxuan Wang, Xiaoting Hao, X. Hao, D. Repaka, R. Ramanujan, X. Tao, W. Qin, Qichun Zhang   +11 more
semanticscholar   +1 more source

Microbial metabolism of pyrene

Chemico-Biological Interactions, 1986
The isolation and identification of pyrene metabolites formed from pyrene by the fungus Cunninghamella elegans is described. C. elegans was incubated with pyrene for 24 h. Six metabolites were isolated by reversed-phase high-performance liquid (HPLC) and thin-layer chromatography (TLC) and characterized by the application of UV absorption, 1H-NMR and ...
C E, Cerniglia, D W, Kelly, J P, Freeman, D W, Miller   +3 more
openaire   +2 more sources

Intersystem crossing in pyrene-h10 and pyrene-d10

Chemical Physics Letters, 1968
Abstract : The phosphorescence intensity, phosphorescence lifetime, and fluorescence lifetime of pyrene -h(10) and pyrene -d(10) were measured as functions of temperature from 80K to 300K. Using this data, we determine the temperature dependence of the rate constant for intersystem crossing.
P.F. Jones, S. Siegel
openaire   +1 more source

Pyrene‐Excimers‐Based Antenna Systems

Chemistry – A European Journal, 2008
AbstractA series of dendrimeric compounds bearing pyrene units were synthesized to afford light‐harvesting antennae based on the formation of intramolecular excimers. The synthetic plan profited from the efficiency of the Huisgen reaction, the 1,3‐dipolar cycloaddition of azides and terminal alkynes, which allowed ready assembly of the different ...
CICCHI, STEFANO, FABBRIZZI, PIERANGELO, GHINI, GIACOMO, BRANDI, ALBERTO, FOGGI, PAOLO, MARCELLI, AGNESE, RIGHINI, ROBERTO, C. Botta   +7 more
openaire   +3 more sources

Effect of rhizodeposition on pyrene bioaccessibility and microbial structure in pyrene and pyrene–lead polluted soil

Chemosphere, 2014
Phytoremediation for PAH hydrocarbons has been widely studied, but few focus on the influence of rhizodeposition on their bioaccessibility during the process. This literature revealed the effect of celery (Apium graveolens) rhizodeposition on pyrene fractionation and bioaccessibility in simulated pyrene and pyrene-lead contaminated microcosms.
Jing, Wei, Xiaoyan, Liu, Qian, Wang, Chuanhua, Wang, Xueping, Chen, Hongbing, Li   +5 more
openaire   +2 more sources

Penta(pyrenyl)[60]fullerenes: Pyrene–Pyrene and [60]Fullerene–Pyrene Interactions in the Crystal and in Solution

Chemistry – An Asian Journal, 2008
AbstractA new type of fullerene–pyrene hybrid molecule, C60Ar5R [Ar=1‐pyrenyl, 4‐(1‐pyrenyl)C6H4, 4‐{(1‐pyrenyl)CO2}C6H4, and 4‐{(1‐pyrenyl)(CH2)3CO2}C6H4; R=H and Me] was synthesized by a regioselective penta‐addition reaction using organocopper reagents.
Yutaka, Matsuo, Kouhei, Morita, Eiichi, Nakamura   +2 more
openaire   +2 more sources