Accession Number:

ADA265588

Title:

Vibrational Overtone Activation of Methylcyclopropene

Descriptive Note:

Technical rept.,

Corporate Author:

BOWLING GREEN STATE UNIV OH CENTER FOR PHOTOCHEMICAL SCIENCES

Report Date:

1993-05-27

Pagination or Media Count:

10.0

Abstract:

The photoisomerization of 1 -methylcyclopropene MCPene was studied at specific internal energies accessed by laser vibrational overtone activation. The vibrational overtone spectrum of the 6-0 and 5-0 CH stretches were observed for our synthesized mixture of 75 MCPene and 25 methylenecyclopropane MCPane . The overtone spectrum of neat MCPane was determined in the spectral regions. The transition wavenumbers were compared to the previously known members of the vinyl, methylenic and methyl vibrational progressions. Product yields from activation through the 5-0 vinyl and methyl CH stretches were determined using gas chromotography. Product ratios of 1,3-butadiene to 2-butyne were measured as a function of pressure and compared to the RRKM predicted yields. After careful measurements we conclude that at these photolysis energies methylcyclopropene does not produce methylene cyclopropane.... Overtones, Methylcyclopropene, Kinetic.

Subject Categories:

  • Organic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE