scholarly journals A combined experimental and theoretical study of reactions between the hydroxyl radical and oxygenated hydrocarbons relevant to astrochemical environments

2014 ◽  
Vol 16 (8) ◽  
pp. 3466-3478 ◽  
Author(s):  
R. J. Shannon ◽  
R. L. Caravan ◽  
M. A. Blitz ◽  
D. E. Heard
Keyword(s):  
Hydroxyl Radical ◽  
Dimethyl Ether ◽  
Low Temperatures ◽  
Theoretical Study ◽  
Rate Coefficients ◽  
Oxygenated Hydrocarbons ◽  
P Rate

Rate coefficients for the reactions of the hydroxyl radical with acetone and dimethyl ether increase dramatically at very low temperatures.

Rate coefficients of hydroxyl radical reaction with dimethyl ether over a temperature range of 257–333 K

2018 ◽  
Vol 706 ◽  
pp. 558-563 ◽  
Author(s):  
Monali Kawade ◽  
Asmita Sharma ◽  
D. Srinivas ◽  
Ankur Saha ◽  
Hari P. Upadhyaya ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Dimethyl Ether ◽  
Radical Reaction ◽  
Rate Coefficients ◽  
Temperature Range

Kinetic investigations of chlorine atom initiated photo oxidation reactions of 2,3-dimethyl-1,3-butadiene in the gas phase: an experimental and theoretical study

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67739-67750 ◽  
Author(s):  
S. Vijayakumar ◽  
B. Rajakumar
Keyword(s):  
Experimental Method ◽  
Gas Phase ◽  
Chlorine Atom ◽  
Theoretical Study ◽  
Relative Rate ◽  
Rate Coefficients ◽  
Oxidation Reactions ◽  
Photo Oxidation ◽  
P Rate ◽  
Kinetic Investigations

Rate coefficients for the reaction of chlorine atoms with 2,3-dimethyl-1,3-butadiene were measured over the temperature range of 269–393 K by using a relative rate experimental method with reference to isoprene and 1-pentene.

Hydroxyl Radical Promotes the Direct Iodination of Aromatic Compounds with Iodine in Water: A Combined Experimental and Theoretical Study

2012 ◽  
Vol 354 (4) ◽  
pp. 720-729 ◽  
Author(s):  
Peng Zhang ◽  
Dongqing Sun ◽  
Mingwei Wen ◽  
Jingkui Yang ◽  
Kebin Zhou ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Aromatic Compounds ◽  
Theoretical Study

A Combined Experimental and Theoretical Study on the Hydrolysis of Dimethyl Ether over H-ZSM-5

2011 ◽  
Vol 115 (23) ◽  
pp. 11649-11656 ◽  
Author(s):  
Supawadee Namuangruk ◽  
Jittima Meeprasert ◽  
Pongtanawat Khemthong ◽  
Kajornsak Faungnawakij
Keyword(s):  
Dimethyl Ether ◽  
Theoretical Study ◽  
Hydrolysis Of

scholarly journals A theoretical study of a possible model of paramagnetic alums at low temperatures

1940 ◽  
Vol 176 (965) ◽  
pp. 203-213 ◽  
Keyword(s):  
Magnetic Field ◽  
Low Temperatures ◽  
Theoretical Study ◽  
Spontaneous Magnetization ◽  
Critical Value ◽  
Transition Curve ◽  
Thin Specimen ◽  
First Order ◽  
Freely Suspended ◽  
Line Of Critical Points

An attempt is made to examine theoretically the properties of paramagnetic alums at low temperatures. The model taken is a lattice of freely suspended magnets, all interactions except purely magnetic being neglected. Even with this simplification it is impossible at present to make rigorous calculations of the partition function, either on classical or quantum lines. A simple model is proposed, which is really a generalization of the Bragg - Williams theory enabling one to take account of the effect of a magnetic field. The few configurations whose energies are known are used to fix arbitrary constants in the expression assumed for the energy. The theory predicts that the state of lowest energy is either a spontaneously magnetized, state for a long thin specimen, or a state in which alternate rows of magnets point in opposite directions for a sphere, spontaneous magnetization appearing in an ellipsoid with an eccentricity greater than a certain critical value. The transition curve bounding the region in which the antiparallel state is stable consists partly of a line of Curie points corresponding to transitions of the second, order, passing smoothly into a line of critical points corresponding to a transition of the first order. The effect of shape on the magnetic properties of the specimen seems to be experimentally verified, but the rough nature of the theory prevents it being more than qualitative.

Sign in / Sign up

Export Citation Format

Share Document