Hydrogen exchange of saturated hydrocarbons in homogeneous media

1963 ◽  
Vol 12 (6) ◽  
pp. 904-907
Author(s):  
V. N. Setkina ◽  
D. N. Kursanov
Keyword(s):  
Hydrogen Exchange ◽  
Saturated Hydrocarbons ◽  
Homogeneous Media

scholarly journals Activation of saturated hydrocarbons by homogeneous metal catalysts : Deuterium exchange in iridium(III) solution

1974 ◽  
Vol 27 (8) ◽  
pp. 1823 ◽  
Author(s):  
JL Garnett ◽  
MA Long ◽  
KB Peterson
Keyword(s):  
Hydrogen Exchange ◽  
Metal Catalysts ◽  
Deuterium Exchange ◽  
Saturated Hydrocarbons ◽  
Isotopic Hydrogen

Isotopic hydrogen exchange between simple alkanes and D2O is homogeneously catalysed by sodium chloroiridite at 160�C. Initial isotope orientation favours hydrogen on the primary carbon atoms.High M values for the exchange are typical.

Hydrogen Exchange and Isomerization of Saturated Hydrocarbons with Sulfuric Acid

1952 ◽  
Vol 74 (13) ◽  
pp. 3269-3282 ◽  
Author(s):  
D. P. Stevenson ◽  
C. D. Wagner ◽  
O. Beeck ◽  
J. W. Otvos
Keyword(s):  
Sulfuric Acid ◽  
Hydrogen Exchange ◽  
Saturated Hydrocarbons

Liquid Crystal Trimers Incorporating Saturated Isosteres of Benzene and Exhibiting Modulated Nematic Phases

2019 ◽  
Author(s):  
Adam Al-Janabi ◽  
Richard Mandle
Keyword(s):  
Liquid Crystal ◽  
Helical Structure ◽  
Molecular Shape ◽  
Saturated Hydrocarbons ◽  
Fluid System ◽  
Structural Requirement ◽  
Disubstituted Benzene ◽  
Bona Fide ◽  
Nematic Phases ◽  
Bend Angles

<p>The nematic twist-bend (N<sub>TB</sub>) liquid crystal phase possesses a local helical structure with a pitch length of a few nanometres and is the first example of spontaneous symmetry breaking in a fluid system. All known examples of the N­<sub>TB­</sub> phase occur in materials whose constituent mesogenic units are aromatic hydrocarbons. It is not clear if this is due to synthetic convenience or a <i>bona fide</i> structural requirement for a material to exhibit this phase of matter. In this work we demonstrate that materials consisting largely of saturated hydrocarbons could also give rise to this mesophase. Furthermore, replacement of 1,4-disubstituted benzene with <i>trans</i> 1,4-cyclohexane or even 1,4-cubane does not especially alter the transition temperatures of the resulting material nor does it appear to impact upon the heliconical tilt angle, suggesting the local structure of the phase is unperturbed. Calculating the probability distribution of bend angles reveals that the choice of isosteric group has little impact on the overall molecular shape, demonstrating the shape-driven nature of the N<sub>TB</sub> phase. </p>

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