germanium selenide
- Formula: GeSe
- Molecular weight: 151.60
- CAS Registry Number: 12065-10-0
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Gas phase ion energetics data
Go To: Top, Constants of diatomic molecules, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.5 | EI | Balducci, Sacconi, et al., 1991 | LL |
| 9.8 | PE | White, Rosenberg, et al., 1979 | Vertical value; LLK |
| 9.95 | PE | Wu and Fehlner, 1976 | Vertical value; LLK |
| 10.2 ± 0.5 | EI | Wu and Fehlner, 1976 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Ge+ | 13.8 | Se | EI | Balducci, Sacconi, et al., 1991 | LL |
| Se+ | 17.5 | Ge | EI | Balducci, Sacconi, et al., 1991 | LL |
Constants of diatomic molecules
Go To: Top, Gas phase ion energetics data, References, Notes
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
| Symbol | Meaning |
|---|---|
| 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) |
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E | 35462.6 | 217.7 H | 1.02 1 | E ← X R | 35367 H | |||||||
| ↳missing citation | ||||||||||||
| A 1Π | 30845.7 | 269.4 H | 0.89 | A ↔ X R | 30776.2 H | |||||||
| ↳missing citation; missing citation | ||||||||||||
| X 1Σ+ | 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
| 1 | Long progression of absorption bands converging at 42360 cm-1. The vibrational constants represent the levels only to v'=14. |
| 2 | αv= -3.4E-8 (v+1/2)2 -1.1E-9(v+1/2)3. |
| 3 | missing note |
| 4 | From the effective Be. According to Stieda, Tiemann, et al., 1976 the minimum of the Born-Oppenheimer potential curve is at 2.134603 Å. |
| 5 | IR sp. 8 |
| 6 | Microwave sp. 9 |
| 7 | From 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. |
| 8 | In low-temperature argon and nitrogen matrices. |
| 9 | μel(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, Gas phase ion energetics data, 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.
Balducci, Sacconi, et al., 1991
Balducci, G.; Sacconi, L.V.; Gigli, G.,
The dimerization energies of the Ge2S2, Ge2Se2, and Ge2Te2 molecules,
Ber. Bunsen-Ges. Phys. Chem., 1991, 95, 1651. [all data]
White, Rosenberg, et al., 1979
White, M.G.; Rosenberg, R.A.; Lee, S.T.; Shirley, D.A.,
The He(I) photoelectron spectroscopy of heavy group IV-VI diatomics,
J. Electron Spectrosc. Relat. Phenom., 1979, 17, 323. [all data]
Wu and Fehlner, 1976
Wu, M.; Fehlner, T.P.,
Valence level photoelectron spectra of some heavy group 4-6 diatomic molecules,
J. Am. Chem. Soc., 1976, 98, 7578. [all data]
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
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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