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Smirnov AN, Solomonik VG, Yurchenko SN, Tennyson J. Spectroscopy of YO from first principles. Phys Chem Chem Phys 2019; 21:22794-22810. [PMID: 31598617 DOI: 10.1039/c9cp03208h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an ab initio study on the spectroscopy of the open-shell diatomic molecule yttrium oxide, YO. The study considers the six lowest doublet states, X2Σ+, A'2Δ, A2Π, B2Σ+, C2Π, D2Σ+, and a few higher-lying quartet states using high levels of electronic structure theory and accurate nuclear motion calculations. The coupled cluster singles, doubles, and perturbative triples, CCSD(T), and multireference configuration interaction (MRCI) methods are employed in conjunction with a relativistic pseudopotential on the yttrium atom and a series of correlation-consistent basis sets ranging in size from triple-ζ to quintuple-ζ quality. Core-valence correlation effects are taken into account and complete basis set limit extrapolation is performed for CCSD(T). Spin-orbit coupling is included through the use of both MRCI state-interaction with spin-orbit (SI-SO) approach and four-component relativistic equation-of-motion CCSD calculations. Using the ab initio data for bond lengths ranging from 1.0 to 2.5 Å, we compute 6 potential energy, 12 spin-orbit, 8 electronic angular momentum, 6 electric dipole moment and 12 transition dipole moment (4 parallel and 8 perpendicular) curves which provide a complete description of the spectroscopy of the system of six lowest doublet states. The Duo nuclear motion program is used to solve the coupled nuclear motion Schrödinger equation for these six electronic states. The spectra of 89Y16O simulated for different temperatures are compared with several available high resolution experimental studies; good agreement is found once minor adjustments are made to the electronic excitation energies.
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Affiliation(s)
- Alexander N Smirnov
- Department of Physics, Ivanovo State University of Chemistry and Technology, Ivanovo 153000, Russia
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Vega-Vega Á, Barrientos C, Largo A. Metallic monoboronyl compounds: Prediction of their structure and comparison with the cyanide analogues. J Comput Chem 2017; 38:807-815. [DOI: 10.1002/jcc.24752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Álvaro Vega-Vega
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias; Universidad de Valladolid; Campus Miguel Delibes, Paseo de Belén 7 47011 Valladolid Spain
| | - Carmen Barrientos
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias; Universidad de Valladolid; Campus Miguel Delibes, Paseo de Belén 7 47011 Valladolid Spain
| | - Antonio Largo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias; Universidad de Valladolid; Campus Miguel Delibes, Paseo de Belén 7 47011 Valladolid Spain
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Redondo P, Largo A, Vega-Vega Á, Barrientos C. Structure and spectroscopic properties of neutral and cationic tetratomic [C,H,N,Zn] isomers: A theoretical study. J Chem Phys 2015; 142:184301. [PMID: 25978885 DOI: 10.1063/1.4919879] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The structure and spectroscopic parameters of the most relevant [C,H,N,Zn] isomers have been studied employing high-level quantum chemical methods. For each isomer, we provide predictions for their molecular structure, thermodynamic stabilities as well as vibrational and rotational spectroscopic parameters which could eventually help in their experimental detection. In addition, we have carried out a detailed study of the bonding situations by means of a topological analysis of the electron density in the framework of the Bader's quantum theory of atoms in molecules. The analysis of the relative stabilities and spectroscopic parameters suggests two linear isomers of the neutral [C,H,N,Zn] composition, namely, cyanidehydridezinc HZnCN ((1)Σ) and hydrideisocyanidezinc HZnNC ((1)Σ), as possible candidates for experimental detections. For the cationic [C,H,N,Zn](+) composition, the most stable isomers are the ion-molecule complexes arising from the direct interaction of the zinc cation with either the nitrogen or carbon atom of either hydrogen cyanide or hydrogen isocyanide, namely, HCNZn(+) ((2)Σ) and HCNZn(+) ((2)Σ).
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Affiliation(s)
- Pilar Redondo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Antonio Largo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Álvaro Vega-Vega
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Carmen Barrientos
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011 Valladolid, Spain
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Flory MA, Ziurys LM. Millimeter-wave rotational spectroscopy of FeCN (X 4Δi) and FeNC (X 6Δi): Determining the lowest energy isomer. J Chem Phys 2011; 135:184303. [PMID: 22088061 DOI: 10.1063/1.3653809] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- M A Flory
- Department of Chemistry and Department of Astronomy, Steward Observatory, University of Arizona, 933 N. Cherry Ave., Tucson, Arizona 85721, USA
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Barrientos C, Redondo P, Rayón VM, Largo A. Structure and stability of neutral cyanide complexes of copper and zinc. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.01.073] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Rayón VM, Redondo P, Valdés H, Barrientos C, Largo A. Polyisocyanides of Titanium. J Phys Chem A 2009; 113:1574-7. [DOI: 10.1021/jp809339f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Víctor M. Rayón
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Pilar Redondo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Haydee Valdés
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Carmen Barrientos
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Antonio Largo
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain, and Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
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Hirano T, Okuda R, Nagashima U, Tanaka K, Jensen P. Ab initio molecular orbital study of ground and low-lying electronic states of NiCN. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.01.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Paul A, Yamaguchi Y, Schaefer HF. Coupled cluster investigation on the low-lying electronic states of CuCN and CuNC and the ground state barrier to isomerization. J Chem Phys 2007; 127:154324. [DOI: 10.1063/1.2784393] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Redondo P, Rayón VM, Valdés H, Barrientos C, Largo A. A theoretical study of the [FeCN]+ system: Cyanide–isocyanide competition and isomerization barrier. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.07.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lee DK, Lim IS, Lee YS, Hagebaum-Reignier D, Jeung GH. Molecular properties and potential energy surfaces of the cyanides of the groups 1 and 11 metal atoms. J Chem Phys 2007; 126:244313. [PMID: 17614555 DOI: 10.1063/1.2749504] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Ab initio calculations on the metal (groups 1 and 11) cyanide complexes show two stable configurations for the ground state geometry, a linear cyanide (MCN) and a triangular (MNC) form with an obtuse M-N-C angle. Lithium complex may exist in a linear isocyanide (MNC) form, but it cannot be differentiated from the triangular configuration because of the flatness of the potential energy surface connecting the two isomers. The metal atom and cyano radical are bonded through a strongly ionic configuration (M+CN-) in both geometrical forms. The MNC triangular form is a very floppy structure having one low frequency for the bending mode, whereas the MCN linear form is more rigid. The CN complexes of the alkali atoms have a triangular geometry as the lowest energy conformer, while the noble metal atoms prefer the linear cyanide one. The relative stability of the two isomers, dipole moments, and effective charges are reported in this paper. The essential aspects of the potential energy surfaces for the ground and the first excited states exhibiting a closely avoided crossing are also explained.
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Affiliation(s)
- Dong-ki Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 305-701 Daejeon, Korea
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Rayón VM, Redondo P, Valdés H, Barrientos C, Largo A. Cyanides and Isocyanides of First-Row Transition Metals: Molecular Structure, Bonding, and Isomerization Barriers. J Phys Chem A 2007; 111:6334-44. [PMID: 17580838 DOI: 10.1021/jp072434n] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cyanides and isocyanides of first-row transition metal M(CN) (M=Sc-Zn) are investigated with quantum chemistry techniques, providing predictions for their molecular properties. A careful analysis of the competition between cyanide and isocyanide isomers along the transition series has been carried out. In agreement with the experimental observations, late transition metals (Co-Zn) clearly prefer a cyanide arrangement. On the other hand, early transition metals (Sc-Fe), with the only exception of the Cr(CN) system, favor the isocyanide isomer. The theoretical calculations predict the following unknown isocyanides, ScNC(3Delta), TiNC(4Phi), VNC(5Delta), and MnNC(7Sigma+), and agree with the experimental observation of FeNC(6Delta) and the CrCN(6Sigma+) cyanide. First-row transition metal cyanides and isocyanides are predicted to have relatively large dissociation energies with values within the range 80-101 kcal mol(-1), except Zn(CN), which has a dissociation energy around 50-55 kcal mol(-1), and low isomerization barriers. A detailed analysis of the bonding has been carried out employing the topological analysis of the charge density and an energy decomposition analysis. The role of the covalent and electrostatic contributions to the metal-ligand bonding, as well as the importance of pi bonding, are discussed.
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Affiliation(s)
- Víctor M Rayón
- Departamento de Química Física y Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47005 Valladolid, Spain
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Flory MA, Field RW, Ziurys LM. The pure rotational spectrum of CrCN (X 6 Σ +): an unexpected geometry and unusual spin interactions. Mol Phys 2007. [DOI: 10.1080/00268970601146872] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Villaume S, Strich A, Daniel C, Perera SA, Bartlett RJ. A coupled cluster study of the electronic spectroscopy and photochemistry of Cr(CO)6. Phys Chem Chem Phys 2007; 9:6115-22. [DOI: 10.1039/b709050a] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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