Accession Number : ADD095068

Title :   Microwave Spectra of Molecules of Astrophysical Interest. IX. Acetaldehyde,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Bauder, A ; Lovas, F J ; Johnson, D R

Report Date : Jan 1976

Pagination or Media Count : 32

Abstract : The microwave spectrum of acetaldehyde is critically reviewed and augmented through calculations which include the effects of internal rotation and centrifugal distortion. Since the primary objective of this review is to provide microwave spectral transitions applicable to radio astronomy studies, the review encompasses only the ground state rotational spectrum of the most abundant isotopic form of acetaldehyde (12)CH(12)(3)CH(16)O. While all measured transitions are included, the predicted transition frequencies were limited to J less than or = 12 in the range of 900 MHz to 250 GHz. In addition to this spectral information, the review includes the rotational constants, centrifugal distortion constants, inertial rotation parameters, electric dipole moment, structural data, moments in inertia, and constants relating to the barrier to internal rotation. (Author)

Descriptors :   *MOLECULAR ROTATION, *ACETALDEHYDE, *BAND SPECTRA, *MICROWAVES, *SPECTRA, TRANSITIONS, ASTROPHYSICS, RADIO ASTRONOMY, GROUND STATE, INERTIAL SYSTEMS, CENTRIFUGAL FIELDS, DISTORTION, PHASE TRANSFORMATIONS, DIPOLE MOMENTS

Subject Categories : Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE