Pulsed-laser photolysis of Mn2(CO)10: A time-resolved fluorescence study |
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Authors: | P Kubát J Krhút T Vondrák Z Zelinger |
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Institution: | (1) J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolej kova 3, CZ-182 23 Prague 8, Czech Republic |
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Abstract: | Mn2(CO)10 was photolysed in the gas phase by the XeCl-excimer laser with fluence in the range 25–300 mJ/cm2 and a dye laser. The UV/VIS emission of the products was probed on a nanosecond time scale. The emission from excited states of metal atoms was detected only. The Mn atoms are predominantly formed in their ground statea
6
S
2 1/2. The absorption of one photon and the subsequent relaxation process leads to the formation ofz
6
P
J
0
(J = 11/2, 21/2, 31/2) states and emission of photons at a wavelength of 403 nm. The formation of the excited statese
8
D
5 1/2,z
6
F
4 1/2
0
ande
6
D
4 1/2 and the subsequent emission observed at wavelengths of 357, 383 and 446 nm requires the absorption of two photons by the ground-state Mn atoms. In addition, transition from thea
6
D
j (J = 11/2, 21/2) lower states were observed in the wavelength-resolved Laser-Induced Fluorescence (LIF) spectra. |
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Keywords: | 82 50 32 20 33 80 |
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