Disiloxane, hexamethyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase ion energetics data

Go To: Top, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)202.3kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity195.1kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.6 ± 1.0EISeefeldt, Moller, et al., 1985LBLHLM
9.64 ± 0.01PIMolder, Pikver, et al., 1983LBLHLM
9.59 ± 0.04EIHess, Lampe, et al., 1965RDSH
9.88PEStarzewski, Dieck, et al., 1974Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H9SiO+21.8 ± 0.2?EIBorossay, Csakvari, et al., 1971LLK
C3H9Si+15.4 ± 0.2?EIBorossay, Csakvari, et al., 1971LLK
C3H9Si+15.36 ± 0.13?EIHess, Lampe, et al., 1965RDSH
C5H15OSi2+10.4 ± 0.2CH3EISeefeldt, Moller, et al., 1985LBLHLM
C5H15OSi2+10.20 ± 0.07CH3EIHess, Lampe, et al., 1965RDSH

References

Go To: Top, 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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Seefeldt, Moller, et al., 1985
Seefeldt, R.; Moller, W.; Schmidt, M., Zur elektronenstossionisierung des hexamethyldisiloxans (HMDS), Z. Phys. Chem. (Leipzig), 1985, 266, 797. [all data]

Molder, Pikver, et al., 1983
Molder, U.H.; Pikver, R.J.; Koppel, I.A., Photoelectron spectra of molecules. 2. Ethers, Org. React. (N.Y. Engl. Transl.), 1983, 20, 208. [all data]

Hess, Lampe, et al., 1965
Hess, G.G.; Lampe, F.W.; Sommer, L.H., An electron impact study of ionization and dissociation of trimethylsilanes, J. Am. Chem. Soc., 1965, 87, 5327. [all data]

Starzewski, Dieck, et al., 1974
Starzewski, K.A.O.; Dieck, H.T.; Bock, H., Photoelectron spectra molecular properties. XXIII. Photoelectron spectra of silicon-substituted ylidic systems, J. Organomet. Chem., 1974, 65, 311. [all data]

Borossay, Csakvari, et al., 1971
Borossay, J.; Csakvari, B.; Szepes, L., Determination of bond energies of organic silicon compounds on the basis of appearance potentials, Int. J. Mass Spectrom. Ion Phys., 1971, 7, 47. [all data]


Notes

Go To: Top, Gas phase ion energetics data, References