Results 31 to 40 of about 672,883 (341)

Reversible, room-temperature C-C bond activation of benzene by an isolable metal complex.

open access: yesJournal of the American Chemical Society, 2019
The activation of C-C bonds is of fundamental interest in the construction of complex molecules from petrochemical feedstocks. In the case of the archetypal aromatic hydrocarbon benzene, C-C cleavage is thermodynamically disfavoured, and is brought about
Jamie Hicks   +3 more
semanticscholar   +1 more source

Reaction of cyclopentadienyl and methyl radicals

open access: yesJournal of Biomedical Photonics & Engineering, 2017
Geometries and potential energies of reagents, products, and intermediate states for the reaction between cyclopentadienyl (C5H5) and methyl (CH3) radicals are found by means of ab initio quantum mechanical methods CCSD(T)/cc-pVTZ-f12, B2PLYPD3/AUG-CC ...
Vladislav S. Krasnoukhov   +3 more
doaj   +1 more source

Electronic spectra of polyatomic molecules with resolved individual rotational transitions [PDF]

open access: yes, 1981
The density of rotational transitions for a polyatomic molecule is so large that in general many such transitions are hidden under the Doppler profile, this being a fundamental limit of conventional high resolution electronic spectroscopy.
Aliev M. R.   +6 more
core   +1 more source

Computational Study on Homogeneous Melting of Benzene Phase I

open access: yesCrystals, 2019
Molecular-dynamics simulations are used for examining the microscopic details of the homogeneous melting of benzene phase I. The equilibrium melting temperatures of our model were initially determined using the direct-coexistence method.
Kenji Mochizuki
doaj   +1 more source

City-scale assessment of long-term air quality impacts on the respiratory and cardiovascular health

open access: yesFrontiers in Public Health, 2022
BackgroundThe impact of the urban environment on human health is a contemporary subject of environmental research. Air pollution is often considered a leading environmental driver.
Libor Šulc   +5 more
doaj   +1 more source

Kinetics, Thermodynamic and Mechanism of Ultrasonic Degradation of Benzene in Aqueous Solution [PDF]

open access: yesEngineering and Technology Journal, 2014
Ultrasonic technology, as an innovative technology,was used for degradation of benzene in an aqueous solution under ultrasound frequency of 20 kHz at different temperatures with initial concentration of 100 and 200 mg/L.
Ismail K.Al-Khateeb   +2 more
doaj   +1 more source

Transport Studies of Isolated Molecular Wires in Self-Assembled Monolayer Devices [PDF]

open access: yes, 2005
We have fabricated a variety of novel molecular diodes based on self-assembled-monolayers (SAM) of solid-state mixture of molecular wires (1,4 benzene-dimethane-thiol), and molecular insulator spacers (1-pentanethiol) with different concentration ratios ...
Burtman, V.   +2 more
core   +1 more source

Report on the Benzene Study of 2008-2009 [PDF]

open access: yes, 2010
The purpose of this study was to determine whether reducing the amount of benzene in gasoline, which is scheduled to take place in 2011, will effect a change in indoor air benzene levels in Anchorage, Alaska.
Gordian, Mary Ellen
core   +1 more source

Bacteria from Jatropha curcas rhizosphere, degrades aromatic hydrocarbons and promotes growth in Zea mays

open access: yesOpen Agriculture, 2019
The rhizosphere is one of the most important reservoirs of microorganisms. Because of the microbial metabolic activities, these can be used for various biotechnological, agricultural and environmental purposes. In this study we evaluated five genetically
Wong-Villarreal Arnoldo   +9 more
doaj   +1 more source

Assessment of BTEX concentration around fuel station in Eastern Province Kingdom of Saudi Arabia

open access: yesInternational Journal of Environmental Health Engineering, 2021
Aim: The aim of this study is to determine the benzene, toluene, ethylbenzene, and xylene (BTEX) concentration levels in and around the fuel station and its harmful health effects in the city of Dammam and Al Khobar, Saudi Arabia.
Khaled F Salama   +2 more
doaj   +1 more source

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