Now showing items 41-47 of 47
Low temperature infrared spectra of polyglycines and C—H ... O[bouble bond]C hydrogen bonding in polyglycine II
(Wiley Subscription Services, Inc., A Wiley Company, 1968-03)
Infrared spectra of polyglycines I and II obtained at −170°C. have been compared with those obtained at room temperature. The changes in frequency of some of the C—H stretching bands are consistent with the earlier suggestion ...
Lattice‐Frequency Studies of Crystalline and Fold Structure in Polyethylene
(The American Institute of Physics, 1968-10)
The assignment of the 71 cm−1 band in the infrared spectrum of polyethylene to the B1u translational lattice vibration has been confirmed by dichroism studies on an a‐axis oriented sample. This permits confident use of the ...
Force fields for nitriles
(Elsevier, 1968-11)
A valence force field for nitriles based on the force field obtained for hydrocarbons is found to give very good agreement with the observed bands for several mono- and di-nitrile molecules. The average deviation between ...
Vibrational analysis of chain folding in polyethylene crystals
(John Wiley & Sons, Inc., 1968-05)
The vibration frequencies of a polyethylene crystal lattice have been computed for various structures in which a fully deuterated chain is mixed with a normal chain. Intermolecular potential functions previously developed ...
Exploding Wire System with in Vacuo Preparation of Lithium Wire
(The American Institute of Physics, 1968-09)
Stochastic Approach to the Theory of Fluctuations in Plasmas
(The American Institute of Physics, 1968-03)
A stochastic (in contrast to kinetic theoretic) approach to the calculation of correlation functions in fully ionized plasmas is investigated. Formally different results are obtained. The question as to whether or not the ...
Helium–Hydrogen Liquid–Vapor Equilibrium to 100 atm
(The American Institute of Physics, 1968-09-01)
Liquid–vapor phase compositions are given for 11 isotherms of the system normal‐hydrogen–helium over the range 15.5° to 29.8°K at pressures to 1500 lb/in.2 In this range, the mixture critical curve is located, the freezing ...