Dichlorosilylene

Formula: Cl₂Si
Molecular weight: 98.992
CAS Registry Number: 13569-32-9
Information on this page:
Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
Options:
- Switch to calorie-based units

Gas phase ion energetics data

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, Gas phase ion energetics data, Notes

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, Gas phase ion energetics data, References

Symbols used in this document:

AE Appearance energy

EA Electron affinity
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.