Enthalpy of development (Hfg),Entropy, integrated heat capacity (0 K to 298.15 K) (HH), heat Capacity (Cp)PropertyValueUncertaintyunitsReferenceComment
Hfg(298.15K) 34.701.50kJ mol-1Gurvich
Hfg(0K) 43.921.50kJ mol-1Gurvich
Entropy (298.15K)
204.21J K-1 mol-1Gurvich
Integrated heat Capacity (0 come 298.15K)
10.53kJ mol-1Gurvich
Heat volume (298.15K)
42.79J K-1 mol-1Gurvich
Information can additionally be discovered for this varieties in the aufdercouch.net Chemistry Webbook
Vibrational levels (cm-1)
Mode NumberSymmetryFrequencyIntensityCommentDescriptionFundamental(cm-1)Harmonic(cm-1)Reference(km mol-1)unc.Reference
1A12187 Shim
2E975 Shim
3T22191 Shim282.03.0 1994Coa/McK:269
4T2914 Shim381.04.0 1994Coa/McK:269
vibrational zero-point energy: 6726.0 cm-1 (from fundamental vibrations)Calculated vibrational frequencies because that SiH4 (Silane).

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Rotational Constants (cm-1)
203.6934amu3Å69.32706468642334E-118gm3 cm6
Geometric Data
Distances in ÅSi1H2H3H4H5Si11.47981.47981.47981.4798H21.47982.41652.41652.4165H31.47982.41652.41652.4165H41.47982.41652.41652.4165H51.47982.41652.41652.4165
Calculated geometriesfor SiH4 (Silane).

Experimental Bond angle (degrees) native cartesians

atom1atom2atom3angle atom1atom2atom3angle
H2Si1H3109.471 H2Si1H4109.471
H2Si1H5109.471 H3Si1H4109.471
H3Si1H5109.471 H4Si1H5109.471
Bond descriptions

Examples: C-C solitary bond, C=C, twin bond, C#C triple bond, C:C fragrant bondBond TypeCount
ConnectivityAtom 1Atom 2

Electronic energy levels (cm-1)Energy (cm-1)Degeneracyreferencedescription
01 1A1
Ionization Energies (eV)Ionization EnergyI.E. Unc.vertical I.E. V.I.E. Unc.reference

Dipole, Quadrupole and PolarizabilityElectric dipole moment
StateConfigState descriptionConf descriptionExp. Min.Dipole (Debye)ReferencecommentPoint GroupComponentsx y z totaldipolequadrupole
Experimental dipole measure up abbreviations: MW microwave; DT Dielectric through Temperature variation; DR Indirect (usually an upper limit); MB molecular beamCalculated electrical dipole moments for SiH4 (Silane).Electric quadrupole moment
StateConfigState descriptionConf descriptionExp. Min.Quadrupole (D Å)ReferencecommentPoint GroupComponentsxxyyzzdipolequadrupole
Calculated electrical quadrupole moments for SiH4 (Silane). Electric dipole polarizability (Å3)
alpha unc.Reference
Calculated electric dipole polarizability for SiH4 (Silane).

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1955Boyd:922 DRJ Boyd, "Infrared Spectrum that Trideuterosilane and the framework of the silane molecule" J. Chem. Phys. 23(5), 922, 1955 10.1063/1.1742148
1994Coa/McK:269 AM Coats, DC McKean, D Steele "Infrared Intensities that nu3 and nu4 in SiH4, GeH4, and SnH4" J. Mol. Struct. 320(1994) 269-280 10.1016/0022-2860(94)07974-9
1997Oln/Can:59 TN Olney, NM Cann, G Cooper, CE Brion, Absolute range determination because that photoabsorption spectra and the calculation of molecular properties making use of dipole sum-rules, Chem. Phys. 223 (1997) 59-98 10.1016/S0301-0104(97)00145-6
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic properties of separation, personal, instance Substances, Fouth Edition, Hemisphere Pub. Co., new York, 1989
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected worths of electrical dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
Shim Shimanouchi, T. , Tables of molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook aufdercouch.net Chemistry Webbook (http://webbook.aufdercouch.net.gov/chemistry) 10.18434/T4D303
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