Rotational Isomerism Of Unbranched 1-alkenes By Infrared Spectra

Item

Title
Rotational Isomerism Of Unbranched 1-alkenes By Infrared Spectra
Date
1961
Index Abstract
Not Available
Photo Quality
Undetermined
Report Number
WADD TR 61-82
Creator
Harrah, Larry A.
Corporate Author
Physics Laboratory
Extent
62
Identifier
AD0270877
Access Rights
Unknown
Distribution Classification
1
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Abstract
The IR spectra of the 1-alkenes from 1-butene to 1-hexadecene together with the spectra of 3 bromo-, 3 iodo-, and 3 cyanpropene were studied over the range from 1/4000 to 1/240 cm. The spectra of the crystalline solid states of some of the igher 1-alkenes in the range 1/700 to 1/500 cm are shown and in conjunction with the corresponding liquid state spectra indicate the presence of rotational isomerism about the carbon-carbon bond in the 1-alkenes. The potentials for rotation about the 2,3 carbon-carbon bond are derived from the observed spectra together with an empirical relationship for hydrogen-hydrogen steric interactions. The fundamental vibrational assignment was made f r 1-butene and the IR spectrum of the vapor interpreted on the basis of this assignment. The cell used to obtain the solid state spectra of t e 1-alkenes is described in detail.
Report Availability
Full text available by request
Date Issued
1961-03
Provenance
Agricultural Research Service Southern Region Research Center
Type
report
Format
62 pages ; 28 cm.