More information about funding sources:
 |
|
Beckman
Kara Manke |
Tom Varberg |
Laser Spectroscopy of Metal-containing Free Radicals in the Gas Phase |
We have recorded hyperfine resolved laser excitation spectra of the B2F5/2 –X12D3/2 and C2D 3/2 –X12D3/2 electronic transitions of TaO. The electronic spectrum of this molecule was first explored by Cheetam and Barrow using a grating spectrograph. A Ti:sapphire ring laser was used to analyze TaO molecules that were produced with a hollow cathode discharge. We achieved hyperfine resolution using the sub-Doppler technique of inter-modulated florescence spectroscopy. A least-squares fit of the transition frequencies was used to determine improved values for the rotational parameters and values for the magnetic dipole and electric quadrupole parameters of these states. Our results are summarized in the following table:
Parameter |
X12D3/2 |
B2F5/2 |
C2D 3/2 |
B |
4.019966(43) x 10-1 |
3.868527(46) x 10-1 |
3.875446(49) x 10-1 |
B(lit.) |
4.028992(16) x 10-1 |
3.8777782(38) x 10-1 |
3.884168(14) x 10-1 |
D |
2.884(77) x 10-7 |
3.056(82) x 10-7 |
3.01(11) x 10-7 |
D(lit.) |
2.47077(84) x 10-7 |
2.63405(14) x 10-7 |
2.59266(74) x 10-7 |
h |
2.135(19) x 10-2 |
4.303(16) x 10-2 |
5.466(22) x 10-2 |
eQq0 |
-1.031(17) x 10-1 |
-6.41(20) x 10-2 |
-1.167(19) x 10-1 |
|
| |
Sarah Miller |
Ron Brisbois |
|
|
|
|
