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Strontium monohydroxide


Gas phase thermochemistry data

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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
Deltafgas-205.52kJ/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
gas,1 bar246.46J/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 (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 50.86405
B 4.610935
C -0.435638
D 0.031291
E -0.562673
F -222.7800
G 303.4915
H -205.5181
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

Gas phase ion energetics data

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

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

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)1019.4kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity981.6kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
5.1 ± 0.2EIMurad, 1983LBLHLM
5.1 ± 0.2EIMurad, 1981LLK
5.6 ± 0.1DERKelly and Padley, 1970RDSH

Vibrational and/or electronic energy levels

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: Marilyn E. Jacox

State:   F


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 32985 gas F-X 297 304 Beardah and Ellis, 1999


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

Sigma+ 3 SrO stretch 592 T gas LF Beardah and Ellis, 1999

State:   E


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 29990 gas E-X 308 334 Beardah and Ellis, 1999


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

Sigma+ 3 SrO stretch 612 T gas LF Beardah and Ellis, 1999

State:   D


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 27701.64 gas D-X 353 361 Beardah and Ellis, 1999
Wang, Dick, et al., 2007


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

Sigma+ 3 SrO stretch 630 T gas LF Beardah and Ellis, 1999

State:   C


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 27307.25 gas C-X 354 383 Beardah and Ellis, 1999
Wang, Sheridan, et al., 2006


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

Pi 2 Bend 255 T w gas LF Beardah and Ellis, 1999

State:   B'


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 260033.41 gas B'-X 371 385 Beardah and Ellis, 2003
Wang, Dick, et al., 2007


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

Pi 2 Bend 394 gas LF Beardah and Ellis, 2003
Sigma+ 3 SrO stretch 574 gas LF Beardah and Ellis, 2003

State:   B


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 16377.505 ± 0.001 gas B-X 580 611 Wormsbecher, Trkula, et al., 1983
Nakagawa, Wormsbecher, et al., 1983
Steimle, Fletcher, et al., 1992
Presunka and Coxon, 1993
Tx = 16553 ± 15 Kr B-X Douglas, Hauge, et al., 1984


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

Pi 2 Bend 400.84 gas LF Nakagawa, Wormsbecher, et al., 1983
Presunka and Coxon, 1993
Sigma+ 3 SrO stretch 533.7 gas LF Oberlander and Parson, 1996

State:   A


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

To = 14674.04 gas A-X 645 695 Wormsbecher, Trkula, et al., 1983
Brazier and Bernath, 1985
Steimle, Fletcher, et al., 1992
Presunka and Coxon, 1994
Presunka and Coxon, 1995
Wang, Sheridan, et al., 2006
Tx = 14598 ± 15 Kr A-X Douglas, Hauge, et al., 1984


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

Pi 2 Bend 381.36 gas LF Presunka and Coxon, 1994
Sigma+ 3 SrO stretch 542.6 gas LF Brazier and Bernath, 1985
Presunka and Coxon, 1995

State:   X


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

Sigma+ 1 OH stretch 3766 ± 10 gas LF Jarman and Bernath, 1992
Pi 2 Bend 363.69 gas LF Nakagawa, Wormsbecher, et al., 1983
Brazier and Bernath, 1985
Presunka and Coxon, 1993
Beardah and Ellis, 1999
Sigma+ 3 SrO stretch 526.99 gas LF Nakagawa, Wormsbecher, et al., 1983
Brazier and Bernath, 1985
Presunka and Coxon, 1995
Beardah and Ellis, 1999
3 SrO stretch 479.3 Ar IR Kauffman, Hauge, et al., 1984

Additional references: Jacox, 1994, page 29; Jacox, 1998, page 140; Jacox, 2003, page 23; James and Sugden, 1955; Anderson, Barclay, et al., 1992; Fletcher, Jung, et al., 1993; Zhao, Hajigeorgiou, et al., 1996; Yu, Wang, et al., 2006

Notes

wWeak
TTentative assignment or approximate value
oEnergy separation between the v = 0 levels of the excited and electronic ground states.
xEnergy separation between the band maximum of the excited electronic state and the v = 0 level of the ground state.

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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Murad, 1983
Murad, E., Abstraction reactions of Ca+ and Sr+ ions, J. Chem. Phys., 1983, 78, 6611. [all data]

Murad, 1981
Murad, E., Thermochemical properties of the gaseous alkaline earth monohydroxides, J. Chem. Phys., 1981, 75, 4080. [all data]

Kelly and Padley, 1970
Kelly, R.; Padley, P.J., Ionization potentials of alkaline-earth monohydroxides, Chem. Commun., 1970, 1606. [all data]

Beardah and Ellis, 1999
Beardah, M.S.; Ellis, A.M., Observation of several new electronic transitions of the SrOH free radical, J. Chem. Phys., 1999, 110, 23, 11244, https://doi.org/10.1063/1.479065 . [all data]

Wang, Dick, et al., 2007
Wang, J.-G.; Dick, M.J.; Sheridan, P.M.; Yu, S.; Bernath, P.F., Further spectroscopic investigations of the high energy electronic states of SrOH: The and the transitions, J. Mol. Spectrosc., 2007, 245, 1, 26, https://doi.org/10.1016/j.jms.2007.06.005 . [all data]

Wang, Sheridan, et al., 2006
Wang, J.-G.; Sheridan, P.M.; Dick, M.J.; Bernath, P.F., Optical--optical double-resonance spectroscopy of SrOH: The transition, J. Mol. Spectrosc., 2006, 236, 1, 21, https://doi.org/10.1016/j.jms.2005.12.002 . [all data]

Beardah and Ellis, 2003
Beardah, M.S.; Ellis, A.M., Observation of a new transition of the SrOH free radical, J. Mol. Spectrosc., 2003, 218, 1, 80, https://doi.org/10.1016/S0022-2852(02)00040-1 . [all data]

Wormsbecher, Trkula, et al., 1983
Wormsbecher, R.F.; Trkula, M.; Martner, C.; Penn, R.E.; Harris, D.O., Chemiluminescent reactions of alkaline-earth metals with water and hydrazine, J. Mol. Spectrosc., 1983, 97, 1, 29, https://doi.org/10.1016/0022-2852(83)90335-1 . [all data]

Nakagawa, Wormsbecher, et al., 1983
Nakagawa, J.; Wormsbecher, R.F.; Harris, D.O., High-resolution laser excitation spectra of linear triatomic molecules: Analysis of the B2«SIGMA»+-X2«SIGMA»+ system of SrOH and SrOD, J. Mol. Spectrosc., 1983, 97, 1, 37, https://doi.org/10.1016/0022-2852(83)90336-3 . [all data]

Steimle, Fletcher, et al., 1992
Steimle, T.C.; Fletcher, D.A.; Jung, K.Y.; Scurlock, C.T., A supersonic molecular beam optical Stark study of CaOH and SrOH, J. Chem. Phys., 1992, 96, 4, 2556, https://doi.org/10.1063/1.462007 . [all data]

Presunka and Coxon, 1993
Presunka, P.I.; Coxon, J.A., High-resolution laser spectroscopy of excited bending vibrations («upsilon», Can. J. Chem., 1993, 71, 10, 1689, https://doi.org/10.1139/v93-211 . [all data]

Douglas, Hauge, et al., 1984
Douglas, M.A.; Hauge, R.H.; Margrave, J.L., Electronic Matrix Isolation Spectroscopic Studies of the Group IIA Metal---Water Photochemistry, High Temp. Sci., 1984, 17, 201. [all data]

Oberlander and Parson, 1996
Oberlander, M.D.; Parson, J.M., Laser excited fluorescence study of reactions of excited Ca and Sr with water and alcohols: Product selectivity and energy disposal, J. Chem. Phys., 1996, 105, 14, 5806, https://doi.org/10.1063/1.472457 . [all data]

Brazier and Bernath, 1985
Brazier, C.R.; Bernath, P.F., Laser and fourier transform spectroscopy of the transition of SrOH, J. Mol. Spectrosc., 1985, 114, 1, 163, https://doi.org/10.1016/0022-2852(85)90345-5 . [all data]

Presunka and Coxon, 1994
Presunka, P.I.; Coxon, J.A., Laser spectroscopy of the A 2«PI»--X 2«SIGMA»+ transition of SrOH: Deperturbation analysis of K-resonance in the v2=1 level of the A 2«PI» state, J. Chem. Phys., 1994, 101, 1, 201, https://doi.org/10.1063/1.468171 . [all data]

Presunka and Coxon, 1995
Presunka, P.I.; Coxon, J.A., Laser excitation and dispersed fluorescence investigations of the system of SrOH, Chem. Phys., 1995, 190, 1, 97, https://doi.org/10.1016/0301-0104(94)00330-D . [all data]

Jarman and Bernath, 1992
Jarman, C.N.; Bernath, P.F., High resolution laser spectroscopy of the C 2«DELTA»--X 2«SIGMA»+ transition of CaOH and CaOD: Vibronic coupling and the Renner--Teller effect, J. Chem. Phys., 1992, 97, 3, 1711, https://doi.org/10.1063/1.463158 . [all data]

Kauffman, Hauge, et al., 1984
Kauffman, J.W.; Hauge, R.H.; Margrave, J.L., High Temp. Sci., 1984, 18, 97. [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [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]

James and Sugden, 1955
James, C.G.; Sugden, T.M., A New Identification of the Flame Spectra of the Alkaline-Earth Metals, Nature, 1955, 175, 4451, 333, https://doi.org/10.1038/175333a0 . [all data]

Anderson, Barclay, et al., 1992
Anderson, M.A.; Barclay, W.L., Jr.; Ziurys, L.M., The millimeter-wave spectrum of the SrOH and SrOD radicals, Chem. Phys. Lett., 1992, 196, 1-2, 166, https://doi.org/10.1016/0009-2614(92)85948-A . [all data]

Fletcher, Jung, et al., 1993
Fletcher, D.A.; Jung, K.Y.; Scurlock, C.T.; Steimle, T.C., Molecular beam pump/probe microwave-optical double resonance using a laser ablation source, J. Chem. Phys., 1993, 98, 3, 1837, https://doi.org/10.1063/1.464218 . [all data]

Zhao, Hajigeorgiou, et al., 1996
Zhao, C.; Hajigeorgiou, P.G.; Bernath, P.F.; Hepburn, J.W., High-Resolution Laser Excitation Spectroscopy of theB2«SIGMA»+--X2«SIGMA»+System of Jet-Cooled SrOD, J. Mol. Spectrosc., 1996, 176, 2, 268, https://doi.org/10.1006/jmsp.1996.0086 . [all data]

Yu, Wang, et al., 2006
Yu, S.; Wang, J.-G.; Sheridan, P.M.; Dick, M.J.; Bernath, P.F., Laser spectroscopy of the and transitions of SrOD, J. Mol. Spectrosc., 2006, 240, 1, 26, https://doi.org/10.1016/j.jms.2006.08.004 . [all data]


Notes

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