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Jensen JO. Vibrational frequencies and structural determination of hafnium tetrahydroborate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2003; 59:379-392. [PMID: 12685912 DOI: 10.1016/s1386-1425(02)00168-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The normal mode frequencies and corresponding vibrational assignments of of hafnium tetrahydroborate in T symmetry are examined theoretically using the Gaussian 98 set of quantum chemistry codes. All normal modes were successfully assigned to one of to one of six types of motion (B-H stretch, Hf-B stretch, B-Hf-B bend, H-B-H bend, BH4 wag, and BH4 twist) predicted by a group theoretical analysis. By comparing the vibrational frequencies with IR and Raman spectra available in the literature, a set of scaling factors is derived. Theoretical IR and Raman intensities are reported. Quantum chemical calculations predict that the molecule does not possess strict Td symmetry. The Td structure possesses one negative eigenvalue. The minimum energy structure possesses T symmetry.
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Affiliation(s)
- James O Jensen
- U.S. Army Edgewood Chemical and Biological Center, AMSSB-RRT-DP, Aberdeen Proving Grounds, MD 21010-5424, USA.
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Chen X, Liu S, Plečnik CE, Liu FC, Fraenkel G, Shore SG. Cyclic Organohydroborate Complexes of Metallocenes. VII. Synthesis, Structure, and Fluxional Behavior of Cp2ZrX{(μ-H)2BC8H14} (X = H, D, Cl). Organometallics 2002. [DOI: 10.1021/om0206249] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xuenian Chen
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Shengming Liu
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Christine E. Plečnik
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Fu-Chen Liu
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Gideon Fraenkel
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Sheldon G. Shore
- Evans Laboratory, Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
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Choukroun R, Douziech B, Donnadieu B. Disproportionation of Cationic Zirconium Complexes: A Possible Pathway to the Deactivation of Catalytic Cationic Systems. Organometallics 1997. [DOI: 10.1021/om9701736] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robert Choukroun
- Equipe Précurseurs Moléculaires et Matériaux, Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex, France
| | - Bénédicte Douziech
- Equipe Précurseurs Moléculaires et Matériaux, Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex, France
| | - Bruno Donnadieu
- Equipe Précurseurs Moléculaires et Matériaux, Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex, France
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Jordan, Liu FC, Shore SG. Cyclic Hydroborate Complexes of Metallocenes. 1. Organodiborate Ring Transformations Promoted by Zirconocene and Hafnocene Dichlorides. Syntheses and Structures of Zirconocene and Hafnocene Boracyclopentane Derivatives. Inorg Chem 1997. [DOI: 10.1021/ic970758s] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jordan
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Fu-Chen Liu
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
| | - Sheldon G. Shore
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210
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Demachy I, Esteruelas MA, Jean Y, Lledós A, Maseras F, Oro LA, Valero C, Volatron F. Hydride Exchange Processes in the Coordination Sphere of Transition Metal Complexes: The OsH3(BH4)(PR3)2 System. J Am Chem Soc 1996. [DOI: 10.1021/ja9526170] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Isabelle Demachy
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Miguel A. Esteruelas
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Yves Jean
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Agustí Lledós
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Feliu Maseras
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Luis A. Oro
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - Cristina Valero
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
| | - François Volatron
- Contribution from the Unitat de Química Física, Departament de Química, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain, Departamento de Química Inorgánica, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain, and Laboratoire de Chimie Théorique (CNRS URA 506, ICMO), Bat. 490, Université de Paris-Sud, 91405 Orsay Cedex, France
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