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Flint AR, Westbrook BR, Fortenberry RC. Theoretical Rotational and Vibrational Spectral Data for the Hypermagnesium Oxide Species Mg 2O and Mg 2O . Chemphyschem 2024:e202400479. [PMID: 38801234 DOI: 10.1002/cphc.202400479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/22/2024] [Accepted: 05/26/2024] [Indexed: 05/29/2024]
Abstract
While magnesium is astronomically observed in small molecules, it largely serves as a contributor to silicate grains, though how these grains form is not well-understood. The smallest hypermagnesium oxide compounds (Mg2 ${{}_{2}}$ O/Mg2 ${{}_{2}}$ O+ ${{}^{+}}$ ) may play a role in silicate formation, but little vibrational reference data exist. As such, anharmonic spectroscopic data are computed forX ˜ 1 Σ g + ${{{\tilde{\rm {X}}}}^1 {\rm{\Sigma }}_g^+ }$ Mg2 ${{}_{2}}$ O,a ˜ 1 Σ u + ${{{\tilde{\rm {a}}}}^1 {\rm{\Sigma }}_u^+ }$ Mg2 ${{}_{2}}$ O, andX ˜ 2 Σ g + ${{{\tilde{\rm {X}}}}^2 {\rm{\Sigma }}_g^+ }$ Mg2 ${{}_{2}}$ O+ ${{}^{+}}$ using quartic force fields (QFFs). Explicitly-correlated coupled-cluster QFFs for the neutral species perform well, implying that full multireference treatment may not be necessary for such systems if enough electron correlation is included. Equation-of-motion ionization potential (EOMIP) methods forX ˜ 2 Σ g + ${{{\tilde{\rm {X}}}}^2 {\rm{\Sigma }}_g^+ }$ Mg2 ${{}_{2}}$ O+ ${{}^{+}}$ QFFs circumvent previous symmetry breaking issues even in explicitly-correlated coupled-cluster results, motivating the need for EOMIP treatments at minimum for such systems. All three species are found to have high-intensity vibrational frequencies. Even so, the highly intense frequency (X ˜ 1 Σ g + ${{{\tilde{\rm {X}}}}^1 {\rm{\Sigma }}_g^+ }$ Mg2 ${{}_{2}}$ O: 894.7 cm-1/11.18 μm;a ˜ 1 Σ u + ${{{\tilde{\rm {a}}}}^1 {\rm{\Sigma }}_u^+ }$ Mg2 ${{}_{2}}$ O: 915.0 cm-1/10.91 μm) for either neutral state may be astronomically obscured by the polycyclic aromatic hydrocarbon 11.2 μm band. Mg2 ${{}_{2}}$ O+ ${{}^{+}}$ may be less susceptible to such obfuscation, and itsν 1 ${{\nu }_{1}}$ intensity is computed to be a massive 4793 km mol-1.
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Affiliation(s)
- Athena R Flint
- Department of Chemistry & Biochemistry, University of Mississippi, University, MS 38655, USA
| | - Brent R Westbrook
- The Open Force Field Initiative, Open Molecular Software Foundation, Davis, CA 95616, USA
| | - Ryan C Fortenberry
- Department of Chemistry & Biochemistry, University of Mississippi, University, MS 38655, USA
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Persinger TD, Frohman DJ, Fawzy WM, Heaven MC. Spectroscopy and electronic structure of the hypermetallic oxide, MgOMg. J Chem Phys 2020; 153:054308. [DOI: 10.1063/5.0020431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Daniel J. Frohman
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - Wafaa M. Fawzy
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - Michael C. Heaven
- Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
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Antonov IO, Barker BJ, Heaven MC. Pulsed-field ionization zero electron kinetic energy spectrum of the ground electronic state of BeOBe+. J Chem Phys 2011; 134:044306. [DOI: 10.1063/1.3541255] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Kwapien K, Sierka M, Döbler J, Sauer J, Haertelt M, Fielicke A, Meijer G. Strukturelle Vielfalt und Flexibilität von MgO-Clustern in der Gasphase. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201004617] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kwapien K, Sierka M, Döbler J, Sauer J, Haertelt M, Fielicke A, Meijer G. Structural Diversity and Flexibility of MgO Gas-Phase Clusters. Angew Chem Int Ed Engl 2011; 50:1716-9. [DOI: 10.1002/anie.201004617] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 11/09/2010] [Indexed: 11/11/2022]
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Ostojić B, Bunker PR, Schwerdtfeger P, Assadollahzadeh B, Jensen P. The predicted spectrum of the hypermetallic molecule MgOMg. Phys Chem Chem Phys 2011; 13:7546-53. [DOI: 10.1039/c0cp02996c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Krivovichev SV, Filatov SK, Semenova TF. Types of cationic complexes based on oxocentred tetrahedra [OM4] in the crystal structures of inorganic compounds. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc1998v067n02abeh000287] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Srnec M, Zahradník R. Small Group IIa–VIa Clusters and Related Systems: A Theoretical Study of Physical Properties, Reactivity, and Electronic Spectra. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600816] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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van Heijnsbergen D, von Helden G, Meijer G, Duncan MA. Infrared resonance-enhanced multiphoton ionization spectroscopy of magnesium oxide clusters. J Chem Phys 2002. [DOI: 10.1063/1.1432999] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Alexander I. Boldyrev
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322-0300
| | - Lai-Sheng Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99352, and W. R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
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Boldyrev AI, Li X, Wang LS. “Napoleon Hat” Structure of Tetraatomic Molecules. A Combined Photoelectron Spectroscopy and Ab Initio Study of CAlSi2- and Its Neutral. J Phys Chem A 2000. [DOI: 10.1021/jp000262n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander I. Boldyrev
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322-0300
| | - Xi Li
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99352, and W. R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
| | - Lai-Sheng Wang
- Department of Physics, Washington State University, 2710 University Drive, Richland, Washington 99352, and W. R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K8-88, P.O. Box 999, Richland, Washington 99352
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Bellert D, Burns KL, Wampler R, Breckenridge W. An accurate determination of the ionization energy of the MgO molecule. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(00)00383-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Boldyrev AI, Simons J. Ab Initio Predictions of New Carbon Hypermagnesium Species: Mg2C and Mg3C. J Phys Chem A 1997. [DOI: 10.1021/jp9615868] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jack Simons
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112
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Kudo H, Yokoyama K. The Structures and Bonding of Hyperlithiated Molecules. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1996. [DOI: 10.1246/bcsj.69.1459] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Boldyrev AI, Simons J. Why Are (MgO)n Clusters and Crystalline MgO So Reactive? ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953617p] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Jack Simons
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112
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