The effects of encaging in ethane well below the critical point seem to influence the cross section only rather modestly. The scaling of the "encaging part" of the translational motion from liquid argon to ethane by use of the law of corresponding states is not successful. The rotational ...
Molecular dynamics calculations have been carried out for a model of liquid acetonitrile. Results are reported for correlation functions appropriate to infrared, Raman and N.M.R. measurements, and very good agreement with experiment is found. Both the tumbling and the spinning motion of the ...
solutions/ molecular motionband shapesOwing to complicated many-body interactions and lack of a static structure our knowledge of the liquid state is more limited than that of the gaseous and solid states. A better understanding of liquids may be achieved through the spectroscopic study of solutions...
Molecular motion in the lyotropic liquid crystal system containing potassium palmitate: A study of proton spin-lattice relaxation times Proton magnetic resonance of mixtures of 1 mol potassium palmitate/6.3 mol D 2O have yielded information about the phase transitions as well as the frequencies and ...
Possible mechanism of molecular motion in liquid water from dielectric spectroscopy data A.A. Volkov, V.G. Artemov, A.A. Volkov, N.N. Sysoev Pages 564-568 Article preview Sorry, this component is empty due to an unexpected error. Please try reloading the page. select article Temperature de...
Anisotropic Molecular Reorientation in Methyl-d3-acetylene in the Liquid State The temperature dependence of deuteron and proton spin–lattice relaxation times,T1, has been measured in methyl‐d3‐acetylene and methylacetylene‐d1usin... Jonas,J. - 《Journal of Chemical Physics》 被引量: 57发表...
Nuclear magnetic resonance (NMR) is used to study molecular motion in two fully aromatic oriented liquid-crystal (LC) polymers (the copolymer with the brand name Vectra and poly-paraphenylphenyleneterephthalate) at high temperatures up to 610 K. Above the temperature of the thermotropic transition,...
When a supercooled liquid approaches glass transition, viscous flow slows down greatly, but often the Brownian motion of a molecular probe in the host liquid does not slow down as much, causing the Stokes-Einstein relation to fail by orders of magnitude. Here we formulate a theory that relates...
Molecular Motion in the Two Amorphous Phases of Triphenyl Phosphite Molecular reorientation in the two amorphous phases of triphenyl phosphite, namely the supercooled liquid (phase aI) and the newly discovered second amorphous phase (phase aII), was investigated by dielectric relaxation and by two-dime...
Instead, it relies on the difference in the mean free path of the molecules of different substances to achieve separation. Here, the free path of molecular motion (represented by λ) refers to the distance traveled by a molecule between two adjacent collisions. The liquid mixture flows along ...