Accession Number:

ADA222335

Title:

Spectroscopic Observation of Individual sp3-Nitrogen Stereoisomers. Supersonic Jet Studies of 2-Aminobenzyl Alcohol

Descriptive Note:

Technical rept.

Corporate Author:

COLORADO STATE UNIV FORT COLLINS DEPT OF CHEMISTRY

Report Date:

1990-05-13

Pagination or Media Count:

12.0

Abstract:

Conformational analysis of the trivalent nitrogen atom is conceptually complicated because of the presence of two dynamic processes, nitrogen inversion and internal rotation about various single bonds. Experimental investigations of this subject are further entangled because these conformational interconversions have very low barriers and are rapid on the time scale of most experimental observations. Evaluation of the sterodynamics of these systems has typically required one of three tricks to slow the inversion andor rotation rates use of electronegative substituents, e.g., Nitrogen- Chlorine derivatives examination of sterically crowded substrates or presence of acid or hydrogen bonding solvents. We herein report the first observation of spectra of individual isotopomers of a monosubstituted amine RNH1H2 in which H1 and H2 represent diastereotopic hydrogen atoms under slow exchange conditions. JG

Subject Categories:

  • Organic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE