Strontium monohydroxide
- Formula: HOSr
- Molecular weight: 104.63
- IUPAC Standard InChIKey: HGDJQLJUGUXYKQ-UHFFFAOYSA-M
- CAS Registry Number: 12141-14-9
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Data at other public NIST sites:
- Options:
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 |
---|---|---|---|---|---|
ΔfH°gas | -205.52 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1975 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 246.46 | J/mol*K | Review | Chase, 1998 | Data 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.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | 298. to 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 |
Reference | Chase, 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) | 1019.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 981.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
5.1 ± 0.2 | EI | Murad, 1983 | LBLHLM |
5.1 ± 0.2 | EI | Murad, 1981 | LLK |
5.6 ± 0.1 | DER | Kelly and Padley, 1970 | RDSH |
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 | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Σ+ | 3 | SrO stretch | 592 | T | gas | LF | Beardah and Ellis, 1999 |
State: E
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Σ+ | 3 | SrO stretch | 612 | T | gas | LF | Beardah and Ellis, 1999 |
State: D
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Σ+ | 3 | SrO stretch | 630 | T | gas | LF | Beardah and Ellis, 1999 |
State: C
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Π | 2 | Bend | 255 | T w | gas | LF | Beardah and Ellis, 1999 |
State: B'
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Π | 2 | Bend | 394 | gas | LF | Beardah and Ellis, 2003 | |
Σ+ | 3 | SrO stretch | 574 | gas | LF | Beardah and Ellis, 2003 | |
State: B
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Π | 2 | Bend | 400.84 | gas | LF | Nakagawa, Wormsbecher, et al., 1983 Presunka and Coxon, 1993 | |
Σ+ | 3 | SrO stretch | 533.7 | gas | LF | Oberlander and Parson, 1996 | |
State: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (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 | |
---|---|---|---|---|---|---|---|
Π | 2 | Bend | 381.36 | gas | LF | Presunka and Coxon, 1994 | |
Σ+ | 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 | |
---|---|---|---|---|---|---|---|
Σ+ | 1 | OH stretch | 3766 ± 10 | gas | LF | Jarman and Bernath, 1992 | |
Π | 2 | Bend | 363.69 | gas | LF | Nakagawa, Wormsbecher, et al., 1983 Brazier and Bernath, 1985 Presunka and Coxon, 1993 Beardah and Ellis, 1999 | |
Σ+ | 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
w | Weak |
T | Tentative assignment or approximate value |
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
x | Energy 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 B2Σ+-X2Σ+ 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 (υ,
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 2Π--X 2Σ+ transition of SrOH: Deperturbation analysis of K-resonance in the v2=1 level of the A 2Π 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 2Δ--X 2Σ+ 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 theB2Σ+--X2Σ+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
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.