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Silane, bromo-


Gas phase 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.

Quantity Value Units Method Reference Comment
Deltafgas-18.70kcal/molReviewChase, 1998Data last reviewed in December, 1976
Quantity Value Units Method Reference Comment
gas,1 bar62.729cal/mol*KReviewChase, 1998Data last reviewed in December, 1976

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1200.1200. - 6000.
A 7.05039024.07421
B 26.517210.933575
C -15.48140-0.181751
D 3.4542000.012221
E -0.092437-3.594391
F -22.16120-34.11759
G 63.4935080.83960
H -18.70010-18.70010
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1976 Data last reviewed in December, 1976

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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

IE (eV) Method Reference Comment
11.03SCausley, Clark, et al., 1976 
10.90PEFrost, Herring, et al., 1971Vertical value
10.96 ± 0.02PECradock and Whiteford, 1971Vertical value
11.03 ± 0.05PECradock and Ebsworth, 1971Vertical value

Vibrational and/or electronic energy levels

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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: Takehiko Shimanouchi

Symmetry:   C3nu     Symmetry Number sigma = 3


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a1 1 SiH3 s-str 2200  D 2200 gas OV(«nu»4)
a1 2 SiH3 s-deform 930  C 930 S gas
a1 3 SiBr str 430  C 430 M gas
e 4 SiH3 d-str 2196  C 2196 S gas
e 5 SiH3 d-deform 950  B 950.4 S gas
e 6 SiH3 rock 633  B 632.6 S gas

Source: Shimanouchi, 1972

Notes

SStrong
MMedium
OVOverlapped by band indicated in parentheses.
B1~3 cm-1 uncertainty
C3~6 cm-1 uncertainty
D6~15 cm-1 uncertainty

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Causley, Clark, et al., 1976
Causley, G.C.; Clark, J.B.; Russell, B.R., The vacuum ultraviolet spectrum of bromosilane, Chem. Phys. Lett., 1976, 38, 602. [all data]

Frost, Herring, et al., 1971
Frost, D.C.; Herring, F.G.; Katrib, A.; McLean, R.A.N.; Drake, J.E.; Westwood, N.P.C., Photoelectron spectra and bonding in some halosilanes, Can. J. Chem., 1971, 49, 4033. [all data]

Cradock and Whiteford, 1971
Cradock, S.; Whiteford, R.A., Photo-electron spectra of the mono and dihalo silanes and germanes, J. Chem. Soc. Faraday Trans., 1971, 67, 3425. [all data]

Cradock and Ebsworth, 1971
Cradock, S.; Ebsworth, E.A.V., Photo-electron spectra of silyl and germyl halides (p-->d)«pi»-bonding, Chem. Commun., 1971, 57. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]


Notes

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