Copper(i)-based oxidation of polycyclic aromatic hydrocarbons and product elucidation using vacuum ultraviolet spectroscopy and theoretical spectral calculations

2018 ◽  
Vol 42 (24) ◽  
pp. 19442-19449 ◽  
Author(s):  
Tharun T. Ponduru ◽  
Changling Qiu ◽  
James X. Mao ◽  
Allegra Leghissa ◽  
Jonathan Smuts ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Spectroscopy ◽  
Mild Conditions ◽  
Polycyclic Aromatic ◽  
Vacuum Ultraviolet Spectroscopy

Fluorinated 1,3,5-triazapentadienyl complexes of copper catalyze the oxidation PAHs to quinones using H2O2as an oxidant under mild conditions.

Selective catalytic hydrogenation of polycyclic aromatic hydrocarbons promoted by ruthenium nanoparticles

2015 ◽  
Vol 5 (5) ◽  
pp. 2741-2751 ◽  
Author(s):  
Emma Bresó-Femenia ◽  
Bruno Chaudret ◽  
Sergio Castillón
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Catalytic Hydrogenation ◽  
Ruthenium Nanoparticles ◽  
Mild Conditions ◽  
Polycyclic Aromatic

Naphthalene, anthracene, triphenylene and pyrene were partially hydrogenated with selectivities between 80% and 100% under mild conditions using ruthenium NPs.

scholarly journals An experimental study of indene pyrolysis with synchrotron vacuum ultraviolet photoionization mass spectrometry

2019 ◽  
Vol 21 (10) ◽  
pp. 5510-5520 ◽  
Author(s):  
Hanfeng Jin ◽  
Jiuzhong Yang ◽  
Lili Xing ◽  
Junyu Hao ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Experimental Study ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Vacuum Ultraviolet ◽  
Photoionization Mass Spectrometry ◽  
Polycyclic Aromatic

Formation of polycyclic aromatic hydrocarbons driven by indenyl reactions is experimentally measured by synchrotron vacuum ultraviolet photoionization mass spectrometry.

Detection of Polycyclic Aromatic Hydrocarbons in a Soil Sample with Photon Ionization Technique

2012 ◽  
Vol 271-272 ◽  
pp. 112-115
Author(s):  
A Dan Li ◽  
Min Zi Chen ◽  
Wen Feng Guo ◽  
Ralf Zimmermann
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Soil Sample ◽  
Aromatic Hydrocarbons ◽  
Vacuum Ultraviolet ◽  
Single Photon ◽  
Rare Gas ◽  
Line Measurement ◽  
Polycyclic Aromatic ◽  
On Line ◽  
Photon Ionization

An electron beam pumped rare gas excimer lamp (EBEL) was utilized to emit the intensive vacuum ultraviolet (VUV) radiation at 126 nm for soft single photon ionization (SPI) of polycyclic aromatic hydrocarbons (PAHs) in a soil sample. The VUV light source was coupled to a compact and mobile time-of-flight mass spectrometer (TOFMS) for the on-line measurement of PAHs. The moderate desorption temperature was set at 300 °C to guarantee the rapid evaporation of the PAHs in the soil sample and without decomposition from the larger molecules. With the thermal treatment, sample extraction and cleanup steps were not needed. The system developed herein was found to perform sufficiently well to evaluate the PAHs in the environmental soil sample at ppm level.

Synthesis of cyclopenta-fused polycyclic aromatic hydrocarbons utilizing aryl-substituted anilines

2016 ◽  
Vol 14 (28) ◽  
pp. 6804-6810 ◽  
Author(s):  
Yeojin Choi ◽  
Tanmay Chatterjee ◽  
Jun Kim ◽  
Jun Soo Kim ◽  
Eun Jin Cho
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Substituted Anilines ◽  
Mild Conditions ◽  
Polycyclic Aromatic

Cyclopenta-fused polycyclic aromatic hydrocarbons were synthesized from readily available 2-aryl-substituted anilines under extremely mild conditions.

scholarly journals Photoprocessing of large PAH cations

2019 ◽  
Vol 15 (S350) ◽  
pp. 388-389
Author(s):  
Gabi Wenzel ◽  
Sarah Rodriguez Castillo ◽  
Giacomo Mulas ◽  
Ming-Chao Ji ◽  
Anthony Bonnamy ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Cross Sections ◽  
Aromatic Hydrocarbons ◽  
Vacuum Ultraviolet ◽  
Young Stars ◽  
Radiative Cooling ◽  
Td Dft ◽  
Polycyclic Aromatic ◽  
Synchrotron Light

AbstractIn cosmic environments, polycyclic aromatic hydrocarbons (PAHs) strongly interact with vacuum ultraviolet (VUV) photons emitted by young stars. Trapped PAH cations ranging in size from 30 to 48 carbon atoms were irradiated by tunable synchrotron light (DESIRS beamline at SOLEIL). Their ionization and dissociation cross sections were determined and compared with TD-DFT computed photoabsorption cross sections. Evidence for radiative cooling is reported.

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