Disilane

• Formula: H₆Si₂
• Molecular weight: 62.2186
• IUPAC Standard InChI: InChI=1S/H6Si2/c1-2/h1-2H3 Copy

  
• IUPAC Standard InChIKey: PZPGRFITIJYNEJ-UHFFFAOYSA-N Copy
• CAS Registry Number: 1590-87-0
• Chemical structure:
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Phase change data
  • Reaction thermochemistry data
• Data at other public NIST sites:
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
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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 evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
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

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

H₅Si₂^- +  =

By formula: H₅Si₂^- + H⁺ = H₆Si₂

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.

Ruscic and Berkowitz, 1991
Ruscic, B.; Berkowitz, J., Photoionization mass spectrometric study of Si₂H₆, J. Chem. Phys., 1991, 95, 2407. [all data]

Chatham, Hils, et al., 1984
Chatham, H.; Hils, D.; Robertson, R.; Gallagher, A., Total and partial electron collisional ionization cross sections for CH₄, C₂H₆, SiH₄, and Si₂H₆, J. Chem. Phys., 1984, 81, 1770. [all data]

Potzinger, Ritter, et al., 1975
Potzinger, P.; Ritter, A.; Krause, J., Massenspektrometrische Bestimmung von Bindungsenergien in siliciumorganischen Verbindungen, Z. Naturforsch. A:, 1975, 30, 347. [all data]

Potzinger and Lampe, 1969
Potzinger, P.; Lampe, F.W., An electron impact study of ionization and dissociation of monosilane and disilane, J. Phys. Chem., 1969, 73, 3912. [all data]

Saalfeld and Svec, 1963
Saalfeld, F.E.; Svec, H.J., The mass spectra of volatile hydrides. II. Some higher hydrides of the group IVB and VB elements, Inorg. Chem., 1963, 2, 50. [all data]

Bock, Ensslin, et al., 1976
Bock, H.; Ensslin, W.; Feher, F.; Freund, R., Photoelectron spectra and molecular properties. LI. Ionization potentials of silanes Si_nH_2n+2, J. Am. Chem. Soc., 1976, 98, 668. [all data]

Ensslin, Bock, et al., 1974
Ensslin, W.; Bock, H.; Becker, G., Photoelectron spectra and molecular properties. XXX. π interactions in H₃Si- H₃C-substituted acetylenes, J. Am. Chem. Soc., 1974, 96, 2757. [all data]

Steele and Stone, 1962
Steele, W.C.; Stone, F.G.A., Silicon-silicon bond dissociation energies in disilane and hexachlorodisilane, J. Am. Chem. Soc., 1962, 84, 3599. [all data]

Saalfeld and Svec, 1966
Saalfeld, F.E.; Svec, H.J., Mass spectra of volatile hydrides. IV. Silylgermane, J. Phys. Chem., 1966, 70, 1753. [all data]

Saalfeld and Svec, 1964
Saalfeld, F.E.; Svec, H.J., Mass spectra of volatile hydrides. III. Silylphosphine, Inorg. Chem., 1964, 3, 1442. [all data]

Krishnakumar and Srivastava, 1991
Krishnakumar, E.; Srivastava, S.K., Dissociative Electron Attachment of Electrons with Si2H6, Int. J. Mass Spectrom. Ion Proc., 1991, 103, 2-3, 107, https://doi.org/10.1016/0168-1176(91)80082-X . [all data]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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