Dichlorosilylene


Reaction thermochemistry data

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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
Δr53.7 ± 3.3kcal/molCIDTPoutsma, Schroeder, et al., 2004gas phase

Gas phase ion energetics data

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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 ± 0.13EIAEPabst, Margrave, et al., 1977From SiCl4; G3MP2B3 calculations indicate an EA of ca. 1.2 eV; B
>2.51512EIAEJaeger and Henglein, 1968From SiCl4; G3MP2B3 calculations indicate an EA of ca. 1.2 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
10.93 ± 0.10EIIhle, Wu, et al., 1978LLK
10.35PEBock, Solouki, et al., 1985Vertical value; LBLHLM
10.35PEBock, Solouki, et al., 1985Vertical value; LBLHLM

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
ClSi+12.50 ± 0.10ClEIIhle, Wu, et al., 1978LLK

References

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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

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