- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Spectrum of the hydroxyl radical
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Spectrum of the hydroxyl radical Carlone, Cosmo
Abstract
The B²Σ⁺→A²Σ⁺ and C²Σ⁺→A²Σ⁺ systems of OH and OD were photographed at high resolution. The apparent dissociation energy D°(A²Σ⁺) is calculated to be (18847 ± 15) cm⁻¹ for OH and (19263 ± 15) cm⁻¹ for OD. An upper limit to D°(X²π₃/₂) OH is deduced to be (35420 ± 15) cm⁻¹. Evidence for a dispersion hump in the B(²Σ⁺) state which is about 100 cm⁻¹ larger than the hump in the A(²Σ⁺) state is presented. The broadening of the rotational lines in several bands of both systems has established a strong predissociation of the A(²Σ⁺) state near v = 5 in OH. The lifetime of these predissociated levels is ≈10⁻¹¹ seconds. A definite identification of the predissociating state has not been possible. Newly discovered vibrational levels in the C(²Σ⁺) state have led to the following constants, in cm⁻¹, of the OH radical in the C²Σ⁺ state Te = 89500 Be = 4.247 D° = 29418 ± 15 ∝e = 0.078 ωe = 1232.9 Ɣ(v=O) = 1.09 Ωeχe = 19.1 Ɣ(v=1) = 0.88 Rotational constants and spin splitting constants in the A(²Σ⁺) and B(²Σ⁺) states, more accurate than previously available are presented.
Item Metadata
Title |
Spectrum of the hydroxyl radical
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
1969
|
Description |
The B²Σ⁺→A²Σ⁺ and C²Σ⁺→A²Σ⁺ systems of OH and OD were photographed at high resolution. The apparent dissociation energy D°(A²Σ⁺) is calculated to be (18847 ± 15) cm⁻¹ for OH and (19263 ± 15) cm⁻¹ for OD. An upper limit to D°(X²π₃/₂) OH is deduced to be (35420 ± 15) cm⁻¹. Evidence for a dispersion hump in the B(²Σ⁺) state which is about 100 cm⁻¹ larger than the hump in the A(²Σ⁺) state is presented.
The broadening of the rotational lines in several bands of both systems has established a strong predissociation of the A(²Σ⁺) state near v = 5 in OH. The lifetime of these predissociated levels is ≈10⁻¹¹ seconds. A definite identification of the predissociating state has not been possible.
Newly discovered vibrational levels in the C(²Σ⁺) state have led to the following constants, in cm⁻¹, of the
OH radical in the C²Σ⁺ state
Te = 89500
Be = 4.247
D° = 29418 ± 15
∝e = 0.078
ωe = 1232.9
Ɣ(v=O) = 1.09
Ωeχe = 19.1
Ɣ(v=1) = 0.88
Rotational constants and spin splitting constants in the A(²Σ⁺) and B(²Σ⁺) states, more accurate than previously available are presented.
|
Genre | |
Type | |
Language |
eng
|
Date Available |
2011-07-16
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0084737
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.