Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Aluminum monobromide


Gas phase thermochemistry data

Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References, Notes

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
Deltafgas15.90kJ/molReviewChase, 1998Data last reviewed in September, 1979
Quantity Value Units Method Reference Comment
gas,1 bar239.61J/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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. - 6000.
A 37.06329
B 1.117652
C -0.387744
D 0.074826
E -0.158509
F 4.270191
G 283.2535
H 15.89903
ReferenceChase, 1998
Comment Data last reviewed in September, 1979

Gas phase ion energetics data

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

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

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to AlBr+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.3PEHildenbrand, 1977LLK

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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 November, 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 27Al79Br
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 1Pi 35879.5 297.2 HQ 6.40 1 -0.527 0.1555 2 0.00216 3 -0.000175 0.00000018 4  2.322 A lrarrow X R 35837.8 HQ
Crawford and Ffolliott, 1933; missing citation; Mahanti, 1935; missing citation; Jennergren, 1948
a 3Pi1 23779.3 410.32 HQ 1.75  0.164 5 0.001    2.26 a rarrow X V 23795.3 HQ
Miescher, 1935; missing citation
a 3Pi0 23647 411.2 (Z) 1.75        a rarrow X V (23663) 6 (Z)
X 1Sigma+ 0 378.0 HQ 1.28  0.15919713 0.000860449 2.030E-06 1.1285E-07 7 -2.07E-10 2.294807 8  

Notes

1This state may have a potential hump of ~ 0.20 eV Barrow, 1960, Barrow, 1961.
2Predissociation for v > 3 According to Ram, Upadhya, et al., 1973 emission from v=2,3 breaks off at J=93,67, respectively.
3missing note
4Rapidly increasing with v.
5Estimated from P and Q head separations.
6P head at 23657.9 cm-1.
7He = -1.119E-14.
8From the corrected Be = 0.15920431.
9Thermochemical value Barrow, 1961; 4.58 eV from predissociation in A 1Pi.
10For values of eqQ see Hoeft, Torring, et al., 1973.

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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]

Hildenbrand, 1977
Hildenbrand, D.L., Dissociation energies of CaBr, SrBr, BaBr, and BaCl from mass spectrometric studies of gaseous equilibria, J. Chem. Phys., 1977, 66, 3526. [all data]

Crawford and Ffolliott, 1933
Crawford, F.H.; Ffolliott, C.F., The band spectra of the halides of aluminum, Phys. Rev., 1933, 44, 953. [all data]

Mahanti, 1935
Mahanti, P.C., The band spectrum of aluminum bromide, Indian J. Phys., 1935, 9, 369. [all data]

Jennergren, 1948
Jennergren, C.G., Band spectrum of aluminum bromide (AlBr), Ark. Mat. Astron. Fys., 1948, 35, 22, 1. [all data]

Miescher, 1935
Miescher, E., Bandenspektren von bor- und aluminium-halogeniden, Helv. Phys. Acta, 1935, 8, 279. [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]

Barrow, 1961
Barrow, R.F., Triplet bands of carbon monoxide: the system e3«SIGMA» - a3«PI», Nature (London), 1961, 189, 480. [all data]

Ram, Upadhya, et al., 1973
Ram, R.S.; Upadhya, K.N.; Rai, D.K.; Singh, J., Rotational analysis of the A1«PI»-X1«SIGMA» system of aluminum monobromide. Determination of dissociation energy by predissociation, Opt. Pura Apl., 1973, 6, 38. [all data]

Hoeft, Torring, et al., 1973
Hoeft, J.; Torring, T.; Tiemann, E., Hyperfeinstruktur von AlCl und AlBr, Z. Naturforsch. A, 1973, 28, 1066. [all data]


Notes

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