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https://hdl.handle.net/2440/60076
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dc.contributor.author | Barnes, M. | - |
dc.contributor.author | Merer, A. | - |
dc.contributor.author | Metha, G. | - |
dc.date.issued | 1995 | - |
dc.identifier.citation | Journal of Chemical Physics, 1995; 103(19):8360-8371 | - |
dc.identifier.issn | 0021-9606 | - |
dc.identifier.issn | 1089-7690 | - |
dc.identifier.uri | http://hdl.handle.net/2440/60076 | - |
dc.description.abstract | <jats:p>The laser induced fluorescence spectrum of jet-cooled CoC near 750 nm has been measured at high resolution following the reaction of laser-ablated cobalt atoms with methane. The X2Σ+ ground state of CoC is an unusually good example of Hund’s case (bβS) coupling. Since Co has a nuclear spin I=7/2, each rotational level is split by the Fermi contact interaction into G=3 and G=4 components, where G=I+S; the splitting for N=0 is more than 0.5 cm−1. The X2Σ+ state begins to uncouple toward case (bβJ) with increasing rotation. Transitions to various 2Π excited states occur in the region 13 000–14 500 cm−1; the most prominent of these (for which high resolution spectra have been recorded) lie at 13 079 cm−1 (2Π3/2) and 13 343 cm−1 (2Π1/2). The (bβS) coupling in the ground state produces some unexpected hyperfine intensity patterns, which have been studied in detail. A very low-lying 2Δi state, whose Ω=5/2 and Ω=3/2 components lie at 221 and 1173 cm−1, has been identified. Laser excitation of the 2Π3/2–2Δ5/2 transition has been observed by monitoring the strong 2Π3/2–X2Σ+ emission, which has allowed the 2Δ5/2 state to be characterized at high resolution. A total of 879 rotational-hyperfine transitions between the various 2Π1/2, 2Π3/2, 2Δ5/2, and 2Σ+ states have been assigned and fitted. Matrix elements for a 2Σ+ state in case (bβS) coupling are listed.</jats:p> | - |
dc.description.statementofresponsibility | M. Barnes, A. J. Merer and G. F. Metha | - |
dc.language.iso | en | - |
dc.publisher | Amer Inst Physics | - |
dc.rights | © 1995 American Institute of Physics | - |
dc.source.uri | http://dx.doi.org/10.1063/1.470148 | - |
dc.title | Electronic transitions of cobalt carbide, CoC, near 750 nm: a good example of case (b(βS)) hyperfine coupling | - |
dc.title.alternative | Electronic transitions of cobalt carbide, CoC, near 750 nm: a good example of case (b(betaS)) hyperfine coupling | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1063/1.470148 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Metha, G. [0000-0003-1094-0947] | - |
Appears in Collections: | Aurora harvest Chemistry and Physics publications Environment Institute publications |
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hdl_60076.pdf | Published version | 297.25 kB | Adobe PDF | View/Open |
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