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germanium selenide


Constants of diatomic molecules

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through September, 1976

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 74Ge80Se
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
E 35462.6 217.7 H 1.02 1        E larrow X R 35367 H
missing citation
A 1Pi 30845.7 269.4 H 0.89        A lrarrow X R 30776.2 H
missing citation; missing citation
X 1Sigma+ 0 408.7 H 1.36  .096340508 0.00028904 2  2.2071E-8 3 1.9E-11 2.134629 4 5  
Marino, Guerin, et al., 1974
          6  
Hoeft, 1966; Stieda, Tiemann, et al., 1976

Notes

1Long progression of absorption bands converging at 42360 cm-1. The vibrational constants represent the levels only to v'=14.
2alphav= -3.4E-8 (v+1/2)2 -1.1E-9(v+1/2)3.
3missing note
4From the effective Be. According to Stieda, Tiemann, et al., 1976 the minimum of the Born-Oppenheimer potential curve is at 2.134603 Å.
5IR sp. 8
6Microwave sp. 9
7From the convergence of the E-X, v"=0 progression assuming dissociation into 3P + 3P. Since the particular triplet components involved are uncertain the possible error is rather large, viz. ± 0.25 eV.
8In low-temperature argon and nitrogen matrices.
9muel(v=0)= 1.648 D Hoeft, Lovas, et al., 1970 from Stark effect of microwave spectrum Hoeft, Lovas, et al., 1970. Hyperfine structure for odd isotopes Hoeft, Lovas, et al., 1970, 2.

References

Go To: Top, Constants of diatomic molecules, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Marino, Guerin, et al., 1974
Marino, C.P.; Guerin, J.D.; Nixon, E.R., Infrared spectra of some matrix-isolated germanium, tin, and lead chalcogenides, J. Mol. Spectrosc., 1974, 51, 160. [all data]

Hoeft, 1966
Hoeft, J., Das Mikrowellenrotationsspektrum des GeSe, Z. Naturforsch. A, 1966, 21, 1240. [all data]

Stieda, Tiemann, et al., 1976
Stieda, W.U.; Tiemann, E.; Torring, T.; Hoeft, J., Adiabatische Korrektur der Born-Oppenheimer-Naherung beim GeS und GeSe, Z. Naturforsch. A, 1976, 31, 374. [all data]

Hoeft, Lovas, et al., 1970
Hoeft, J.; Lovas, F.J.; Tiemann, E.; Torring, T., Elektrisches Dipolmoment von GeSe, GeTe, PbSe und PbTe, Z. Naturforsch. A, 1970, 25, 539. [all data]

Hoeft, Lovas, et al., 1970, 2
Hoeft, J.; Lovas, J.; Tiemann, E.; Torring, T., Dipole moments and hyperfine structure of the group IV/VI diatomic molecules, J. Chem. Phys., 1970, 53, 2736. [all data]


Notes

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