Dirubidium


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
Δfgas27.077kcal/molReviewChase, 1998Data last reviewed in December, 1983
Quantity Value Units Method Reference Comment
gas,1 bar64.783cal/mol*KReviewChase, 1998Data last reviewed in December, 1983

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. to 1600.1600. to 6000.
A 7.4119795.583311
B 7.920651-0.346557
C -10.328900.067709
D 3.161021-0.004487
E 0.0145793.545302
F 24.6476131.35650
G 71.9030177.69520
H 27.0770127.07701
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1983 Data last reviewed in December, 1983

Gas phase ion energetics data

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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
0.498 ± 0.015LPESMcHugh, Eaton, et al., 1989Vertical Detachment Energy: 0.537±0.010 eV; B

Ionization energy determinations

IE (eV) Method Reference Comment
3.9 ± 0.1PIKappes and Schumacher, 1985LBLHLM

References

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

McHugh, Eaton, et al., 1989
McHugh, K.M.; Eaton, J.G.; Lee, G.H.; Sarkas, H.W.; Kidder, L.H.; Snodgrass, J.T.; Manaa, M.R.; Bowen, K.H., Photoelectron Spectra of the alkali metal cluster Anions: Na-,n=2-5, K-,n=2-7, Rb-,n=2-3, and Cs-,n=2-3, J. Chem. Phys., 1989, 91, 6, 3792, https://doi.org/10.1063/1.456861 . [all data]

Kappes and Schumacher, 1985
Kappes, M.M.; Schumacher, E., Generation, spectroscopic and chemical characterization of metal clusters (Mx, x < 65), a progress report, Surf. Sci., 1985, 156, 1. [all data]


Notes

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