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Magnesium monohydroxide


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-39.379kcal/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
gas,1 bar54.120cal/mol*KReviewChase, 1998Data last reviewed in December, 1975

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. - 6000.
A 11.44060
B 2.022441
C -0.440268
D 0.034037
E -0.153830
F -43.39130
G 66.51621
H -39.37739
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

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: Marilyn E. Jacox

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

Pi 2 Bend 188 ± 2 H gas LF Bunker, Kolbuszewski, et al., 1995
Sigma+ 3 MgO stretch 750 ± 3 gas LF Bunker, Kolbuszewski, et al., 1995

Additional references: Jacox, 1998, page 138; Jacox, 2003, page 23; Barclay, Anderson, et al., 1992; Nuccio, Apponi, et al., 1995; Apponi, Anderson, et al., 1999

Notes

H(1/2)(2nu)

References

Go To: Top, Gas phase thermochemistry 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]

Bunker, Kolbuszewski, et al., 1995
Bunker, P.R.; Kolbuszewski, M.; Jensen, P.; Brumm, M.; Anderson, M.A.; Barclay, W.L., Jr.; Ziurys, L.M.; Ni, Y.; Harris, D.O., New rovibrational data for MgOH and MgOD and the internuclear potential function of the ground electronic state, Chem. Phys. Lett., 1995, 239, 4-6, 217, https://doi.org/10.1016/0009-2614(95)00479-N . [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Barclay, Anderson, et al., 1992
Barclay, W.L., Jr.; Anderson, M.A.; Ziurys, L.M., The millimeter-wave spectrum of the MgOH radical (X 2«SIGMA»+), Chem. Phys. Lett., 1992, 196, 3-4, 225, https://doi.org/10.1016/0009-2614(92)85959-E . [all data]

Nuccio, Apponi, et al., 1995
Nuccio, B.P.; Apponi, A.J.; Ziurys, L.M., Millimeter-wave rotational spectroscopy of MgOD and CaOD (X 2«SIGMA»+), J. Chem. Phys., 1995, 103, 21, 9193, https://doi.org/10.1063/1.470030 . [all data]

Apponi, Anderson, et al., 1999
Apponi, A.J.; Anderson, M.A.; Ziurys, L.M., High resolution spectroscopy of MgOH (X [sup 2]«SIGMA»[sup +]) in its V[sub 2] mode: Further evidence for quasilinearity, J. Chem. Phys., 1999, 111, 24, 10919, https://doi.org/10.1063/1.480455 . [all data]


Notes

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