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Hydrogen Abstraction/Addition Reactions in Soot Surface Growth [PDF]
Physical Chemistry Chemical Physics, 2020 The hydrogen abstraction (HB) and addition reactions (HD) by H radicals are examined on a series of polycyclic aromatic hydrocarbon (PAH) monomers and models of quasi-surfaces using quasi-classical trajectory (QCT) method. The QCT results reproduce the rate constants of HB reactions on PAH monomers from density function theory (DFT) in the range of ...
Qingzhao Chu +4 more
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Hydrogen‐Abstraction/Acetylene‐Addition Exposed [PDF]
Angewandte Chemie International Edition, 2016 AbstractPolycyclic aromatic hydrocarbons (PAHs) are omnipresent in the interstellar medium (ISM) and also in carbonaceous meteorites (CM) such as Murchison. However, the basic reaction routes leading to the formation of even the simplest PAH—naphthalene (C10H8)—via the hydrogen‐abstraction/acetylene‐addition (HACA) mechanism still remain ambiguous ...
Tao Yang +6 more
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Hydrogen Abstraction/Acetylene Addition Revealed
Angewandte Chemie International Edition, 2014 AbstractFor almost half a century, polycyclic aromatic hydrocarbons (PAHs) have been proposed to play a key role in the astrochemical evolution of the interstellar medium (ISM) and in the chemistry of combustion systems. However, even the most fundamental reaction mechanism assumed to lead to the simplest PAH naphthalene—the hydrogen abstraction ...
Dorian S N, Parker +3 more
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Hydrogen addition radicals of stilbestrol, hexestrol, and benzestrol. [PDF]
Proceedings of the National Academy of Sciences, 1967 The three synthetic hormones have potent estrogenic properties. The studies of the three hormones demonstrate that one or both rings can accept H atoms and at the same time an oxygen molecule.
Liming, Glen +2 more
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Addition of Hydrogen Bromide to Olefines [PDF]
Nature, 1933 THE results of several investigations have confirmed the discovery1 that oxygen and peroxides (oxidants) may greatly affect the addition of hydrogen bromide to olefinic substances2. In all these investigations the double-bond has been in the terminal position (CH2 = CH – CH2 –), oxidants causing the addition of hydrogen bromide to yield CH2Br – CH2 ...
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Effect of Hydrogen Addition on Soot Formation and Emission in Acetylene Laminar Diffusion Flame. [PDF]
ACS Omega, 2023 Wang M +5 more
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The combined effect of EGR and hydrogen addition on a Syzygium cumini (jamun) liquid biofuel engine. [PDF]
Biotechnol Biofuels Bioprod, 2023 Kannappan C, Sengottaiyan S, Ramasamy R.
europepmc +1 more source
Gaseous Lubricity Additives for Hydrogen Gas
Tribology TransactionsThere is great interest in using hydrogen as a gaseous fuel in combustion engines to eliminate CO2 emissions. Unfortunately, hydrogen gas is a poor lubricant for most engineering metals and an effective lubrication solution for pumping and injecting hydrogen is required.
Jie Zhang +5 more
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Frontispiece: Hydrogen Abstraction/Acetylene Addition Revealed [PDF]
Angewandte Chemie International Edition, 2014 Dorian S. N. Parker +3 more
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Photochemical Addition of Hydrogen Chloride and Hydrogen Bromide to 1-Dodecene
The Journal of the Society of Chemical Industry, Japan, 1969 1-ドデセンに対する塩化水素と臭化水素の光付加反応を種々の溶媒中で行ない,その生成物組成と収率におよぼナ反応条件の効果を研究した。1-ドデセン自体やシクロヘキサンのような非極性溶媒中では, 塩化水素の光付加は非常に遅く, その付加生成物の組成は70%がマルコウニコフの規則にしたがう生成物(塩化2-ドデシル),30%がマルコウニコフの規則に反する生成物(塩化1-ドデシル)である。これに対し,クロロホルムやイソプロピルアルコールのような極性溶媒中では光誘発反応も暗所反応もともに主生成物として塩化2-ドデシルを与える。極性溶媒中と非極性溶媒中での光付加反応の収率の比は5～10である。また,極性溶媒中の光付加と暗所付加の収率の比は2～3である。一方,1-ドデセンへの臭化水素の光付加では,生成物の95 ...
Yoshiro OGATA, Jun ISOBE, Yasuji IZAWA
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