Germylene
- Formula: GeH2
- Molecular weight: 74.66
- IUPAC Standard InChIKey: MWRNXFLKMVJUFL-UHFFFAOYSA-N
- CAS Registry Number: 24968-55-6
- Chemical structure:
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Gas phase ion energetics data
Go To: Top, Vibrational and/or electronic energy levels, 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
B - John E. Bartmess
View reactions leading to H2Ge+ (ion structure unspecified)
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
1.0970 ± 0.0027 | LPES | Miller, Miller, et al., 1986 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
≤9.25 | PI | Ruscic, Schwarz, et al., 1990 | LL |
Vibrational and/or electronic energy levels
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: Marilyn E. Jacox
State: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 16325.54 | gas | A-X | 489 | 850 | Saito and Obi, 1993 | ||
Saito and Obi, 1994 | |||||||
Karolczak, Harper, et al., 1995 | |||||||
Campargue and Escribano, 1999 | |||||||
Smith, Clouthier, et al., 2000 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 1798.4 | gas | LF | Karolczak, Harper, et al., 1995 | |
2 | Bend | 783.0 | gas | LF | Saito and Obi, 1993 Saito and Obi, 1994 Karolczak, Harper, et al., 1995 | ||
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 1856 | gas | LF | Smith, Clouthier, et al., 2000 | |
1 | Sym. stretch | 1862.5 | Ne | IR | Wang, Andrews, et al., 2002 | ||
1 | Sym. stretch | 1860.4 | Ne | IR | Wang, Andrews, et al., 2002 | ||
1 | Sym. stretch | 1839.2 | Ar | IR | Wang, Andrews, et al., 2002 | ||
1 | Sym. stretch | 1858.5 | H2 | IR | Wang and Andrews, 2003 | ||
1 | Sym. stretch | 1854.5 | H2 | IR | Wang and Andrews, 2003 | ||
2 | Bend | 916 | gas | LF | Saito and Obi, 1993 Smith, Clouthier, et al., 2000 | ||
2 | Bend | 921.5 | Ne | IR | Wang, Andrews, et al., 2002 | ||
2 | Bend | 913.6 | Ar | IR | Wang, Andrews, et al., 2002 | ||
2 | Bend | 902.8 | H2 | IR | Wang and Andrews, 2003 | ||
b2 | 3 | Asym. stretch | 1862.5 | Ne | IR | Wang, Andrews, et al., 2002 | |
3 | Asym. stretch | 1860.4 | Ne | IR | Wang, Andrews, et al., 2002 | ||
3 | Asym. stretch | 1839.2 | Ar | IR | Wang, Andrews, et al., 2002 | ||
3 | Asym. stretch | 1858.5 | H2 | IR | Wang and Andrews, 2003 | ||
3 | Asym. stretch | 1854.5 | H2 | IR | Wang and Andrews, 2003 | ||
Additional references: Jacox, 1994, page 20; Jacox, 1998, page 132; Jacox, 2003, page 18; Smith and Guillory, 1972; Lloret, Oria, et al., 1991
Notes
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Miller, Miller, et al., 1986
Miller, T.M.; Miller, A.E.S.; Lineberger, W.C.,
Electron Affinities of Ge and Sn,
Phys. Rev. A, 1986, 33, 5, 3558, https://doi.org/10.1103/PhysRevA.33.3558
. [all data]
Ruscic, Schwarz, et al., 1990
Ruscic, B.; Schwarz, M.; Berkowitz, J.,
Photoionization studies of GeHn(n = 2-4),
J. Chem. Phys., 1990, 92, 1865. [all data]
Saito and Obi, 1993
Saito, K.; Obi, K.,
The first observation of the à 1B1-X 1A1 transition of GeH2 and GeD2 radicals,
Chem. Phys. Lett., 1993, 215, 1-3, 193, https://doi.org/10.1016/0009-2614(93)89287-R
. [all data]
Saito and Obi, 1994
Saito, K.; Obi, K.,
The excited state dynamics of the Ã1B1 state of GeH2 and GeD2 radicals,
Chem. Phys., 1994, 187, 3, 381, https://doi.org/10.1016/0301-0104(94)89020-X
. [all data]
Karolczak, Harper, et al., 1995
Karolczak, J.; Harper, W.W.; Grev, R.S.; Clouthier, D.J.,
The structure, spectroscopy, and excited state predissociation dynamics of GeH2,
J. Chem. Phys., 1995, 103, 8, 2839, https://doi.org/10.1063/1.470520
. [all data]
Campargue and Escribano, 1999
Campargue, A.; Escribano, R.,
Room temperature absorption spectroscopy of GeH2 near 585 nm,
Chem. Phys. Lett., 1999, 315, 5-6, 397, https://doi.org/10.1016/S0009-2614(99)01237-3
. [all data]
Smith, Clouthier, et al., 2000
Smith, T.C.; Clouthier, D.J.; Sha, W.; Adam, A.G.,
Laser optogalvanic and jet spectroscopy of germylene (GeH[sub 2]): New spectroscopic data for an important semiconductor growth intermediate,
J. Chem. Phys., 2000, 113, 21, 9567, https://doi.org/10.1063/1.1319936
. [all data]
Wang, Andrews, et al., 2002
Wang, X.; Andrews, L.; Kushto, G.P.,
Infrared Spectra of the Novel Ge,
J. Phys. Chem. A, 2002, 106, 24, 5809, https://doi.org/10.1021/jp020219v
. [all data]
Wang and Andrews, 2003
Wang, X.; Andrews, L.,
Infrared Spectra of Group 14 Hydrides in Solid Hydrogen: Experimental Observation of PbH,
J. Am. Chem. Soc., 2003, 125, 21, 6581, https://doi.org/10.1021/ja029862l
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Jacox, 1998
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement A,
J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017
. [all data]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Smith and Guillory, 1972
Smith, G.R.; Guillory, W.A.,
Products of the Vacuum-Ultraviolet Photolysis of Germane Isolated in an Argon Matrix,
J. Chem. Phys., 1972, 56, 4, 1423, https://doi.org/10.1063/1.1677383
. [all data]
Lloret, Oria, et al., 1991
Lloret, A.; Oria, M.; Seoudi, B.; Abouaf-Marguin, L.,
Infrared detection by the matrix-isolation technique of radicals produced in deposition plasmas: germane,
Chem. Phys. Lett., 1991, 179, 4, 329, https://doi.org/10.1016/0009-2614(91)85161-O
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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