DOI: 10.1063/1.448658. A weakly bound metastable state of Cr2: Possible evidence for a double minimum ground state

A weakly bound metastable state of Cr2: Possible evidence for a double minimum ground state

10.1063/1.448658

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

When matrix isolated Cr2 molecules are pumped with radiation corresponding to the x 1Σg → A1Σu absorption a new absorption appears belonging to a metastable species of Cr2, whose lifetime ranges between 0.2 to 0.7 s according to the matrix used and the matrix site pumped. A two-color experiment produced the resonance Raman spectrum of this state which in solid argon has vibrational constants ωe=78.6 and ωeXe=0.4 cm−1. The new state is interpreted as being either a member of the ground state manifold of states with high spin multiplicity, or more likely a long-bond form of Cr2 corresponding to the molecule trapped in the outer minimum of a double minimum ground state potential. If so the lifetime observed is the inverse rate of photon-assisted tunneling from the outer to the inner minimum.

Bibliography

Moskovits, M., Limm, W., & Mejean, T. (1985). A weakly bound metastable state of Cr2: Possible evidence for a double minimum ground state. The Journal of Chemical Physics, 82(11), 4875â4879.

Authors 3

M. Moskovits (first)
W. Limm (additional)
T. Mejean (additional)

References 18 Referenced 22

10.1038/254503a0 / Nature (1975)
10.1021/ic50198a009 / Inorg. Chem. (1979)
10.1063/1.443794 / J. Chem. Phys. (1982)
10.1016/0022-2852(78)90109-1 / J. Mol. Spectrosc. (1978)
10.1016/0009-2614(76)80420-4 / Chem. Phys. Lett. (1976)
10.1021/j100217a005 / J. Phys. Chem. (1982)
10.1063/1.446169 / J. Chem. Phys. (1983)
10.1063/1.445758 / J. Chem. Phys. (1983)
10.1016/0009-2614(83)85029-5 / Chem. Phys. Lett. (1983)
10.1021/j150603a001 / J. Phys. Chem. (1981)
10.1103/PhysRevLett.48.135 / Phys. Rev. Lett. (1982)
10.1021/ja00540a034 / J. Am. Chem. Soc. (1980)
10.1080/00268978400101641 / Mol. Phys. (1984)
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{'key': '2024021002083753300_r12', 'first-page': '175', 'volume': '103', 'year': '1983', 'journal-title': 'Chem. Phys.'} / Chem. Phys. (1983)
{'key': '2024021002083753300_r13', 'first-page': '241', 'volume': '148', 'year': '1935', 'journal-title': 'Proc. Soc. London Ser. A'} / Proc. Soc. London Ser. A (1935)
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Dates

Type	When
Created	23 years ago (July 26, 2002, 9:02 a.m.)
Deposited	1 year, 6 months ago (Feb. 9, 2024, 10:25 p.m.)
Indexed	1 year, 6 months ago (Feb. 10, 2024, 12:28 a.m.)
Issued	40 years, 2 months ago (June 1, 1985)
Published	40 years, 2 months ago (June 1, 1985)
Published Print	40 years, 2 months ago (June 1, 1985)

Funders 0

None

BibTeX

@article{Moskovits_1985, title={A weakly bound metastable state of Cr2: Possible evidence for a double minimum ground state}, volume={82}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.448658}, DOI={10.1063/1.448658}, number={11}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Moskovits, M. and Limm, W. and Mejean, T.}, year={1985}, month=jun, pages={4875–4879} }

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