Vibrational signature of the conformers in tyramine studied by IR dip and dispersed fluorescence spectroscopies.
Dispersed fluorescence and IR dip spectra of seven conformers of tyramine were measured in a supersonic jet. Observed vibrational bands are assigned based on quantum chemical calculations. The vibrational frequency of out-of-plane CH bending in the benzene ring shows characteristic shifts according to the conformation of C(beta)-C(alpha), while that of CH stretching in the methylene chain reflects the conformation of N-C(beta). From these vibrational frequencies, assignments of the conformers observed in the S(1)-S(0) laser induced fluorescence spectrum are discussed.
Makara
Koji
K
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Misawa
Kentaro
K
Miyazaki
Mitsuhiko
M
Mitsuda
Haruhiko
H
Ishiuchi
Shun-ichi
S
Fujii
Masaaki
M
D018759:Adrenergic Uptake Inhibitors / Q000737:chemistry*; D001554:Benzene / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D007834:Lasers; D008697:Methane / Q000031:analogs & derivatives; D008968:Molecular Conformation; D009584:Nitrogen / Q000737:chemistry; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013055:Spectrophotometry, Infrared / Q000379:methods*; D014439:Tyramine / Q000737:chemistry*; D014732:Vibration
D018759:Adrenergic Uptake Inhibitors; D002244:Carbon; D006859:Hydrogen; D001554:Benzene; D009584:Nitrogen; D008697:Methane; D014439:Tyramine