Dichlorosilylene
- Formula: Cl2Si
- Molecular weight: 98.992
- CAS Registry Number: 13569-32-9
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Reaction thermochemistry data
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: John E. Bartmess
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
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° | 53.7 ± 3.3 | kcal/mol | CIDT | Poutsma, Schroeder, et al., 2004 | gas phase |
Gas phase ion energetics data
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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
View reactions leading to Cl2Si+ (ion structure unspecified)
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.77 ± 0.13 | EIAE | Pabst, Margrave, et al., 1977 | From SiCl4; G3MP2B3 calculations indicate an EA of ca. 1.2 eV; B |
>2.51512 | EIAE | Jaeger and Henglein, 1968 | From SiCl4; G3MP2B3 calculations indicate an EA of ca. 1.2 eV; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.93 ± 0.10 | EI | Ihle, Wu, et al., 1978 | LLK |
10.35 | PE | Bock, Solouki, et al., 1985 | Vertical value; LBLHLM |
10.35 | PE | Bock, Solouki, et al., 1985 | Vertical value; LBLHLM |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
ClSi+ | 12.50 ± 0.10 | Cl | EI | Ihle, Wu, et al., 1978 | LLK |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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]
Pabst, Margrave, et al., 1977
Pabst, R.E.; Margrave, J.L.; Franklin, J.L.,
Electron impact studies of the tetrachlorides and tetrabromides of silicon and germanium,
Int. J. Mass Spectrom. Ion Phys., 1977, 25, 361. [all data]
Jaeger and Henglein, 1968
Jaeger, K.; Henglein, A.,
Die Bildung negativer Ionen aus SiCl4 und organischen Siliciumchloriden durch Elektronenstoss,
Z. Naturfor., 1968, 23A, 1122. [all data]
Ihle, Wu, et al., 1978
Ihle, H.R.; Wu, C.H.; Miletic, M.; Zmbov, K.F.,
Mass spectrometric studies of gas species in the systems Si-Cl and Si-Li,
Adv. Mass Spectrom., 1978, 7, 670. [all data]
Bock, Solouki, et al., 1985
Bock, H.; Solouki, B.; Maier, G.,
SiCl2: Photoelektronenspektroskopische Optimierung verschiedener Synthesen,
Angew. Chem., 1985, 97, 205. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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