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Aluminum monoiodide


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
Deltafgas67.95kJ/molReviewChase, 1998Data last reviewed in September, 1979
Quantity Value Units Method Reference Comment
gas,1 bar247.81J/mol*KReviewChase, 1998Data last reviewed in September, 1979

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 6000.
A 37.39801
B 0.732731
C -0.274022
D 0.073707
E -0.134200
F 56.31580
G 292.1076
H 67.94816
ReferenceChase, 1998
Comment Data last reviewed in September, 1979

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry data, References, Notes

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

Data compiled by: Klaus P. Huber and Gerhard H. Herzberg

Data collected through December, 1975

Symbols used in the table of constants
SymbolMeaning
State electronic state and / or symmetry symbol
Te minimum electronic energy (cm-1)
ωe vibrational constant – first term (cm-1)
ωexe vibrational constant – second term (cm-1)
ωeye vibrational constant – third term (cm-1)
Be rotational constant in equilibrium position (cm-1)
αe rotational constant – first term (cm-1)
γe rotation-vibration interaction constant (cm-1)
De centrifugal distortion constant (cm-1)
βe rotational constant – first term, centrifugal force (cm-1)
re internuclear distance (Å)
Trans. observed transition(s) corresponding to electronic state
ν00 position of 0-0 band (units noted in table)
Diatomic constants for 27Al127I
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 1Pi 2           A larrow X 31487 1
missing citation
a 3Pi1 22089.5 333.4 H 2.0        a lrarrow X V 22097.9 H
missing citation
a 3Pi0 21889.3 337.2 H 2.0        a lrarrow X VR 21899.6 H
missing citation
X 1Sigma+ 0 316.1 H 1.0  0.11769985 0.000558586 3  4  2.537102  
Wyse and Gordy, 1972

Notes

1Vertical transition from v"= 0.
2Unstable; diffuse fluctuation bands with various v".
3alphav= +1.0477E-6(v+1/2)2 - 2.46E-9(v+1/2)3
4Dv = [6.5212 - 0.00957(v+1/2)]E-8; He = -4.590E-15.
5From the analysis of fluctuation bands Barrow, 1960.
6Values of eqQv = (v=0...3) in Torring, Tiemann, et al., 1973.

References

Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, 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]

Wyse and Gordy, 1972
Wyse, F.C.; Gordy, W., Millimeter wave rotational spectra of AlCl, AlBr, and AlI, J. Chem. Phys., 1972, 56, 2130. [all data]

Barrow, 1960
Barrow, R.F., Dissociation energies of the gaseous monohalides of boron, aluminium, gallium, indium, and thallium, Trans. Faraday Soc., 1960, 56, 952. [all data]

Torring, Tiemann, et al., 1973
Torring, T.; Tiemann, E.; Hoeft, J., Hyperfeinstruktur von AlJ, Z. Naturforsch. A, 1973, 28, 1062. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Constants of diatomic molecules, References