Dichlorosilylene
- Formula: Cl2Si
- Molecular weight: 98.992
- CAS Registry Number: 13569-32-9
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Reaction thermochemistry 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 by: John E. Bartmess
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Individual Reactions
(CAS Reg. No. 27121-81-9 • 4294967295Cl2Si) + Cl2Si = CAS Reg. No. 27121-81-9
By formula: (CAS Reg. No. 27121-81-9 • 4294967295Cl2Si) + Cl2Si = CAS Reg. No. 27121-81-9
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 225. ± 14. | kJ/mol | CIDT | Poutsma, Schroeder, et al., 2004 | gas phase |
Vibrational and/or electronic energy levels
Go To: Top, Reaction thermochemistry 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 = 30013.5 ± 0.2 | gas | A-X | 295 | 430 | Ruzsicska, Jodhan, et al., 1985 | ||
Sausa and Ronn, 1985 | |||||||
Washida, Matsumi, et al., 1985 | |||||||
Sameith, Monch, et al., 1986 | |||||||
Suzuki, Washida, et al., 1986 | |||||||
Meijer, Heinze, et al., 1989 | |||||||
Karolczak and Clouthier, 1993 | |||||||
Tx = 31700 | T | Ar | A-X | 310 | 320 | Milligan and Jacox, 1968 | |
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 428.9 | gas | LF | Suzuki, Washida, et al., 1986 Karolczak and Clouthier, 1993 | |
2 | Bend | 149.8 | gas | UV LF | Hargittai, Schultz, et al., 1983 Sameith, Monch, et al., 1986 Suzuki, Washida, et al., 1986 Karolczak and Clouthier, 1993 | ||
State: a
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 18943 | T | gas | a-X | 500 | 650 | Sekiya, Nishimura, et al., 1991 | |
Du, Chen, et al., 1991 | |||||||
Ibuki, Kono, et al., 1997 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | Bend | 159 ± 2 | gas | EM | Sekiya, Nishimura, et al., 1991 Du, Chen, et al., 1991 | |
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 1 | Sym. stretch | 521.6 | gas | LF | Karolczak and Clouthier, 1993 | |
1 | Sym. stretch | 518.7 | Ne | IR | Maass, Hauge, et al., 1972 | ||
1 | Sym. stretch | 512.5 | s | Ar | IR | Milligan and Jacox, 1968 Maass, Hauge, et al., 1972 | |
2 | Bend | 200.6 | gas | EM LF | Sameith, Monch, et al., 1986 Suzuki, Washida, et al., 1986 Sekiya, Nishimura, et al., 1991 Du, Chen, et al., 1991 Karolczak and Clouthier, 1993 | ||
2 | Bend | 202.2 | Ar | IR | Maass, Hauge, et al., 1972 | ||
b2 | 3 | Asym. stretch | 509.4 | Ne | IR | Maass, Hauge, et al., 1972 | |
3 | Asym. stretch | 502 | vs | Ar | IR | Milligan and Jacox, 1968 Maass, Hauge, et al., 1972 | |
Additional references: Jacox, 1994, page 101; Jacox, 1998, page 197; Tanimoto, Takeo, et al., 1989; Fujitake and Hirota, 1994
Notes
s | Strong |
vs | Very strong |
T | Tentative assignment or approximate value |
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
x | Energy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state. |
References
Go To: Top, Reaction thermochemistry 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.
Poutsma, Schroeder, et al., 2004
Poutsma, J.C.; Schroeder, O.E.; Squires, R.R.,
Experimental chloride ion affinities and theoretical predictions for the absolute heats of formation of SiCl2 and SiClF,
Chem. Phys. Lett., 2004, 389, 4-6, 433-437, https://doi.org/10.1016/j.cplett.2004.03.137
. [all data]
Ruzsicska, Jodhan, et al., 1985
Ruzsicska, B.P.; Jodhan, A.; Safarik, I.; Strausz, O.P.; Bell, T.N.,
Dichlorosilylene. The UV spectrum,
Chem. Phys. Lett., 1985, 113, 1, 67, https://doi.org/10.1016/0009-2614(85)85012-0
. [all data]
Sausa and Ronn, 1985
Sausa, R.C.; Ronn, A.M.,
Infrared multiple photon dissociation of dichlorosilane: The production of electronically excited SiCl2,
Chem. Phys., 1985, 96, 1, 183, https://doi.org/10.1016/0301-0104(85)80203-2
. [all data]
Washida, Matsumi, et al., 1985
Washida, N.; Matsumi, Y.; Hayashi, T.; Ibuki, T.; Hiraya, A.; Shobatake, K.,
Emission spectra of SiH(A 2Δ→X 2Π) and SiCl2(A 1B1→X 1A1) in the VUV photolyses of silane and chlorinated silanes,
J. Chem. Phys., 1985, 83, 6, 2769, https://doi.org/10.1063/1.449227
. [all data]
Sameith, Monch, et al., 1986
Sameith, D.; Monch, J.P.; Tiller, H.-J.; Schade, K.,
Vibrational analysis of the UV emission spectrum of dichlorosilyl, SiCl2,
Chem. Phys. Lett., 1986, 128, 5-6, 483, https://doi.org/10.1016/0009-2614(86)80658-3
. [all data]
Suzuki, Washida, et al., 1986
Suzuki, M.; Washida, N.; Inoue, G.,
Laser-induced fluorescence of the SiCl2 radical,
Chem. Phys. Lett., 1986, 131, 1-2, 24, https://doi.org/10.1016/0009-2614(86)80511-5
. [all data]
Meijer, Heinze, et al., 1989
Meijer, G.; Heinze, J.; Meerts, W.L.; ter Meulen, J.J.; Hougen, J.T.,
High-resolution spectroscopy on the transition in SiCl2,
J. Mol. Spectrosc., 1989, 138, 1, 251, https://doi.org/10.1016/0022-2852(89)90115-X
. [all data]
Karolczak and Clouthier, 1993
Karolczak, J.; Clouthier, D.J.,
Pyrolysis jet spectroscopy of dichlorosilylene,
Chem. Phys. Lett., 1993, 201, 5-6, 409, https://doi.org/10.1016/0009-2614(93)85093-4
. [all data]
Milligan and Jacox, 1968
Milligan, D.E.; Jacox, M.E.,
Matrix-Isolation Study of the Vacuum--Ultraviolet Photolysis of Dischlorosilane. The Infrared Spectrum of the Free Radical SiCl2,
J. Chem. Phys., 1968, 49, 4, 1938, https://doi.org/10.1063/1.1670330
. [all data]
Hargittai, Schultz, et al., 1983
Hargittai, I.; Schultz, G.; Tremmel, J.; Kagramanov, N.D.; Maltsev, A.K.; Nefedov, O.M.,
Molecular structure of silicon dichloride and silicon dibromide from electron diffraction combined with mass spectrometry,
J. Am. Chem. Soc., 1983, 105, 9, 2895, https://doi.org/10.1021/ja00347a061
. [all data]
Sekiya, Nishimura, et al., 1991
Sekiya, H.; Nishimura, Y.; Tsuji, M.,
New electronic emission from SiCl2,
Chem. Phys. Lett., 1991, 176, 5, 477, https://doi.org/10.1016/0009-2614(91)90240-A
. [all data]
Du, Chen, et al., 1991
Du, K.; Chen, X.; Setser, D.W.,
Identification of the SiCl2 (ã 3B1-X 1A1) emission system and a flow reactor source of SiCl2(ã 3B1),
Chem. Phys. Lett., 1991, 181, 4, 344, https://doi.org/10.1016/0009-2614(91)80082-9
. [all data]
Ibuki, Kono, et al., 1997
Ibuki, T.; Kono, M.; Asari, Y.; Hiraya, A.; Shobatake, K.,
Photoabsorption and fluorescence cross sections of SiCl[sub 4] in the region of 6.2--31 eV,
J. Chem. Phys., 1997, 106, 12, 4853, https://doi.org/10.1063/1.473534
. [all data]
Maass, Hauge, et al., 1972
Maass, G.; Hauge, R.H.; Margrave, J.L.,
The I.R. Spectra of Matrix-isolated SiBr2 and SiCl2,
Z. Anorg. Allg. Chem., 1972, 392, 3, 295, https://doi.org/10.1002/zaac.19723920314
. [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]
Tanimoto, Takeo, et al., 1989
Tanimoto, M.; Takeo, H.; Matsumura, C.; Fujitake, M.; Hirota, E.,
Microwave spectroscopic detection of dichlorosilylene SiCl2 in the ground state,
J. Chem. Phys., 1989, 91, 4, 2102, https://doi.org/10.1063/1.457070
. [all data]
Fujitake and Hirota, 1994
Fujitake, M.; Hirota, E.,
Spectrochim. Acta, 1994, 50A, 1345. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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