scholarly journals Comment on “Methanol dimer formation drastically enhances hydrogen abstraction from methanol by OH at low temperature” by W. Siebrand, Z. Smedarchina, E. Martínez-Núñez and A. Fernández-Ramos, Phys. Chem. Chem. Phys., 2016, 18, 22712

2018 ◽  
Vol 20 (12) ◽  
pp. 8349-8354 ◽  
Author(s):  
R. J. Shannon ◽  
J. C. Gómez Martín ◽  
R. L. Caravan ◽  
M. A. Blitz ◽  
J. M. C. Plane ◽  
...  
Keyword(s):  
Low Temperature ◽  
Low Temperatures ◽  
Laval Nozzle ◽  
Hydrogen Abstraction ◽  
Chem Phys ◽  
Dimer Formation ◽  
Kinetics Studies ◽  
Phys Chem Chem Phys

A low fraction of methanol dimers is formed in the Laval nozzle used for kinetics studies at very low temperatures.

Reply to ‘Comment on “Angstrom-scale probing of paramagnetic centers location in nanodiamonds by 3He NMR at low temperatures”’ by A. Shames, V. Osipov and A. Panich, Phys. Chem. Chem. Phys. 2018, 20, DOI: 10.1039/c8cp03331e

2018 ◽  
Vol 20 (43) ◽  
pp. 27697-27699
Author(s):  
Vyacheslav Kuzmin ◽  
Kajum Safiullin ◽  
Gleb Dolgorukov ◽  
Andrey Stanislavovas ◽  
Egor Alakshin ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Chem Phys ◽  
Paramagnetic Centers ◽  
Phys Chem Chem Phys

In this reply we respond to recent comments of Shames et al.

scholarly journals Correction: A kinetics study on hydrogen abstraction reactions of cyclopentane by hydrogen, methyl, and ethyl radicals

2021 ◽  
Author(s):  
Wenqi Chen ◽  
Xuan Guo ◽  
Lifang Chen ◽  
Ruiming Zhang ◽  
Yan Li ◽  
...  
Keyword(s):  
Hydrogen Abstraction ◽  
Chem Phys ◽  
Kinetics Study ◽  
Ethyl Radicals ◽  
Phys Chem Chem Phys

Correction for ‘A kinetics study on hydrogen abstraction reactions of cyclopentane by hydrogen, methyl, and ethyl radicals’ by Wenqi Chen et al., Phys. Chem. Chem. Phys., 2021, 23, 7333–7342, DOI: 10.1039/D1CP00386K.

scholarly journals Methanol dimer formation drastically enhances hydrogen abstraction from methanol by OH at low temperature

2016 ◽  
Vol 18 (32) ◽  
pp. 22712-22718 ◽  
Author(s):  
Willem Siebrand ◽  
Zorka Smedarchina ◽  
Emilio Martínez-Núñez ◽  
Antonio Fernández-Ramos
Keyword(s):  
Low Temperature ◽  
Hydroxyl Radicals ◽  
Kinetic Data ◽  
Hydrogen Abstraction ◽  
Dimer Formation ◽  
Cold Expansion ◽  
Kinetics Of

The kinetics of the reaction of methanol with hydroxyl radicals is revisited in light of reported new kinetic data, measured in cold expansion beams.

In situ Tensile Experiments at Low Temperatures on Niobium Single Crystals by H.V.E.M.

1975 ◽  
Vol 33 ◽  
pp. 58-59
Author(s):  
F. H. Louchet ◽  
L. P. Kubin
Keyword(s):  
Electron Microscope ◽  
Transition Temperature ◽  
Low Temperature ◽  
Slip System ◽  
Low Temperatures ◽  
Tensile Axis ◽  
Image Intensifier ◽  
Screw Dislocations ◽  
Source Operation

Experiments have been carried out on the 3 MeV electron microscope in Toulouse. The low temperature straining holder has been previously described Images given by an image intensifier are recorded on magnetic tape.The microtensile niobium samples are cut in a plane with the two operative slip directions [111] and lying in the foil plane. The tensile axis is near [011].Our results concern:- The transition temperature of niobium near 220 K: at this temperature and below an increasing difference appears between the mobilities of the screw and edge portions of dislocations loops. Source operation and interactions between screw dislocations of different slip system have been recorded.

`Diet GMKTN55' Offers Accelerated Benchmarking Through a Representative Subset Approach

2018 ◽  
Author(s):  
Tim Gould
Keyword(s):  
Density Functional ◽  
Chem Phys ◽  
Comprehensive Analysis ◽  
Genetic Approach ◽  
Representative Subset ◽  
Phys Chem Chem Phys

The GMTKN55 benchmarking protocol introduced by [Goerigk et al., Phys. Chem. Chem. Phys., 2017, 19, 32184] allows comprehensive analysis and ranking of density functional approximations with diverse chemical behaviours. But this comprehensiveness comes at a cost: GMTKN55's 1500 benchmarking values require energies for around 2500 systems to be calculated, making it a costly exercise. This manuscript introduces three subsets of GMTKN55, consisting of 30, 100 and 150 systems, as `diet' substitutes for the full database. The subsets are chosen via a stochastic genetic approach, and consequently can reproduce key results of the full GMTKN55 database, including ranking of approximations.

INVAR M93

Alloy Digest ◽  
2008 ◽  
Vol 57 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Low Temperatures ◽  
Bend Strength ◽  
Temperature Performance ◽  
Ni Content ◽  
Precision Alloys ◽  
Ni Alloy

Abstract Invar is an Fe-Ni alloy with 36% Ni content that exhibits the lowest expansion of known metals from very low temperatures up to approximately 230 deg C (445 deg F). Invar M93 is a cryogenic Invar with improved weldability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear and bend strength as well as fracture toughness and fatigue. It also includes information on low temperature performance as well as forming and joining. Filing Code: FE-143. Producer or source: Metalimphy Precision Alloys.

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