20 04 28 14 23Other names
Monosilane; Silane; Silicane; Silicon hydride; Silicon hydride (SiH4); Silicon tetrahydride;

Enthalpy of development (Hfg),Entropy, incorporated heat volume (0 K to 298.15 K) (HH), warm 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 warmth Capacity (0 to 298.15K)
10.53kJ mol-1Gurvich
Heat volume (298.15K)
42.79J K-1 mol-1Gurvich
Information can additionally be uncovered for this varieties in the cg-tower.com Chemistry Webbook
Vibrational level (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 an essential vibrations)Calculated vibrational frequencies because that SiH4 (Silane).

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Rotational Constants (cm-1)
203.6934amu3Å69.32706468642334E-118gm3 cm6
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 angles (degrees) indigenous cartesians

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

Examples: C-C solitary bond, C=C, double 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 minute
StateConfigState descriptionConf descriptionExp. Min.Dipole (Debye)ReferencecommentPoint GroupComponentsx y z totaldipolequadrupole
Calculated electric dipole moments because that SiH4 (Silane).Electric quadrupole minute
StateConfigState descriptionConf descriptionExp. Min.Quadrupole (D Å)ReferencecommentPoint GroupComponentsxxyyzzdipolequadrupole
Calculated electric quadrupole moments because that SiH4 (Silane). Electric dipole polarizability (Å3)
alpha unc.Reference
Calculated electric dipole polarizability because that SiH4 (Silane).

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1955Boyd:922 DRJ Boyd, "Infrared Spectrum that Trideuterosilane and the structure 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
Shim Shimanouchi, T. , Tables of molecule Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook cg-tower.com Chemistry Webbook (http://webbook.cg-tower.com.gov/chemistry) 10.18434/T4D303
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