1
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Kaab omeyr A, Dorosti N. THEORETICAL STUDIES ON STRUCTURE-DIRECTING INTERACTIONS OF DIPHENYL N-(2-PYRAZINYL CARBONYL) PHOSPHORAMIDATE. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622010140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Sivaev IB, Stogniy MY, Bregadze VI. Transition metal complexes with carboranylphosphine ligands. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213795] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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3
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Lian L, Yin J, Lin C, Ye K, Yuan Y. Phosphine Oxide-Directed Palladium-Catalyzed Heck-Type Functionalization of o-Carboranes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Lian L, Lin C, Yu Y, Yuan Y, Ye KY. Phosphine oxide-directed palladium-catalyzed B(3)–H arylation of o-carboranes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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5
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Keener M, Hunt C, Carroll TG, Kampel V, Dobrovetsky R, Hayton TW, Ménard G. Redox-switchable carboranes for uranium capture and release. Nature 2020; 577:652-655. [DOI: 10.1038/s41586-019-1926-4] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 10/30/2019] [Indexed: 11/09/2022]
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6
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Benton A, Durand DJ, Copeland Z, Watson JD, Fey N, Mansell SM, Rosair GM, Welch AJ. On the Basicity of Carboranylphosphines. Inorg Chem 2019; 58:14818-14829. [DOI: 10.1021/acs.inorgchem.9b02486] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Amanda Benton
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Derek J. Durand
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Zachariah Copeland
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - James D. Watson
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Natalie Fey
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Stephen M. Mansell
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Georgina M. Rosair
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Alan J. Welch
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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7
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Rodríguez-Rey JL, Esteban-Gómez D, Platas-Iglesias C, Sousa-Pedrares A. Electronic versus steric control in palladium complexes of carboranyl phosphine-iminophosphorane ligands. Dalton Trans 2019; 48:486-503. [PMID: 30520489 DOI: 10.1039/c8dt04006k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of carboranyl phosphine-iminophosphorane ligands was prepared and characterized. The new ligands present a carboranyl group directly attached to the iminophosphorane nitrogen atom through a cage carbon atom (C-carboranyl derivatives L1-L3) or through the B3 boron atom (B-carboranyl derivatives L4 and L5), and the phosphine group on a side chain derived from the diphosphine dppm, i.e. with a two-atom spacer between the P and N donor atoms. The non-carboranyl analogue L6, with a biphenyl group on the nitrogen atom, was also synthesized for comparison. These potential (P, N) ligands were used to obtain palladium complexes (Pd1-Pd6) and, thus, study how the different inductive effect of the carboranyl substituents can modify the coordinating ability of the nitrogen atom. The structural analysis of the complexes revealed two different coordination modes for the ligands: the (P, N) chelate coordination and the unexpected P-terminal coordination, which is not observed for non-carboranyl phosphine-iminophosphoranes. These unexpected structural differences led us to perform DFT calculations on the ligands and metal complexes. The calculations show that the final coordination modes depend on the balance between the electronic and steric properties of the particular carboranyl group.
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Affiliation(s)
- José Luis Rodríguez-Rey
- Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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8
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Coburger P, Aures R, Schulz P, Hey-Hawkins E. Exploiting the Ring Strain of Diphosphetanes: A Synthetic and Computational Approach towards 1,2,5-Selenadiphospholanes. Chempluschem 2018; 83:1057-1064. [PMID: 31950730 DOI: 10.1002/cplu.201800391] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 11/11/2022]
Abstract
A carboranyl-based meso-1,2,5-selenadiphospholane diselenide was synthesised starting from a strained carborane-substituted 1,2-diphosphetane and subsequently reduced to an unprecedented carboranyl-based meso-1,2,5-selenadiphospholane. The electronic structure and the bonding situation for both compounds were investigated by density functional theory (DFT), Natural Bond Orbital (NBO) analyses, Fractional Occupation Density (FOD) analysis, Complete Active Space Self Consistent Field (CASSCF) calculations and time-dependent DFT (TDDFT) calculations. Ring-opening reactions of meso-1,2,5-selenadiphospholane with nucleophiles and electrophiles are reported together with calculated reaction mechanisms (DFT level). Isolated compounds were characterised by NMR and IR spectroscopy, high-resolution mass spectrometry, elemental analysis and single-crystal X-ray diffraction.
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Affiliation(s)
- Peter Coburger
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Richard Aures
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Paulina Schulz
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Leipzig University, Faculty of Chemistry and Mineralogy Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
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9
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Crujeiras P, Rodríguez-Rey JL, Sousa-Pedrares A. Coordinating Ability of the Iminophosphorane Group in ortho
-Carborane Derivatives. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pablo Crujeiras
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - José Luis Rodríguez-Rey
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Antonio Sousa-Pedrares
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
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10
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Mejri A, Fliss O, Alouani K. Bis(aminophosphine) diselenides as chemosensors for heavy metal cations: An electrochemical, spectroscopic and theoretical study. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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11
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Crujeiras P, Rodríguez-Rey JL, Sousa-Pedrares A. Deactivation of the coordinating ability of the iminophosphorane group by the effect of ortho-carborane. Dalton Trans 2017; 46:2572-2593. [DOI: 10.1039/c6dt04592h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An electron-withdrawing carborane group deactivates the nitrogen donor atom of an iminophosphorane ligand, which is not observed for organic ligands.
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Affiliation(s)
- Pablo Crujeiras
- Departamento de Química Inorgánica
- Facultad de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - José Luis Rodríguez-Rey
- Departamento de Química Inorgánica
- Facultad de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Antonio Sousa-Pedrares
- Departamento de Química Inorgánica
- Facultad de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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12
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Riley LE, Krämer T, McMullin CL, Ellis D, Rosair GM, Sivaev IB, Welch AJ. Large, weakly basic bis(carboranyl)phosphines: an experimental and computational study. Dalton Trans 2017; 46:5218-5228. [PMID: 28378864 DOI: 10.1039/c7dt00485k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(carboranyl)phosphines and their {AuCl} and {Se} derivatives have been the subject of experimental and computational studies.
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Affiliation(s)
- Laura E. Riley
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK EH14 4AS
| | - Tobias Krämer
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK EH14 4AS
| | | | - David Ellis
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK EH14 4AS
| | - Georgina M. Rosair
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK EH14 4AS
| | - Igor B. Sivaev
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 119991 Moscow
- Russia
| | - Alan J. Welch
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- UK EH14 4AS
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13
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Gao Y, Lin YJ, Han YF, Jin GX. Efficient synthesis of carborane azo derivatives and their reactivity. Dalton Trans 2017; 46:1585-1592. [DOI: 10.1039/c6dt04550b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
An iridium(iii)-catalyzed C–N-bond-forming direct synthesis of carborane azo derivatives was developed.
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Affiliation(s)
- Yang Gao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry
- Fudan University
- Shanghai
| | - Yue-Jian Lin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry
- Fudan University
- Shanghai
| | - Ying-Feng Han
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry
- Fudan University
- Shanghai
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry
- Fudan University
- Shanghai
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14
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Estrada J, Lugo CA, McArthur SG, Lavallo V. Inductive effects of 10 and 12-vertex closo-carborane anions: cluster size and charge make a difference. Chem Commun (Camb) 2016; 52:1824-6. [DOI: 10.1039/c5cc08377j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The inductive effects of 10 and 12-vertex closo-carborane anion ligand substituents are elucidated for the first time. It is found that both of these cluster substituents are potent electron donating groups, which is in contrast to C-functionalized o-carborane. The fact that the 10-vertex cluster displays the strongest electron donating ability can be rationalized by its charge and size.
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Affiliation(s)
- Jess Estrada
- Center for Catalysis
- Department of Chemistry University of California Riverside
- Riverside
- USA
| | - Christopher A. Lugo
- Center for Catalysis
- Department of Chemistry University of California Riverside
- Riverside
- USA
| | - Scott G. McArthur
- Center for Catalysis
- Department of Chemistry University of California Riverside
- Riverside
- USA
| | - Vincent Lavallo
- Center for Catalysis
- Department of Chemistry University of California Riverside
- Riverside
- USA
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15
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Resisting B–H oxidative addition: The divergent reactivity of the o-carborane and carba-closo-dodecaborate ligand substituents. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.05.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Estrada J, Woen DH, Tham FS, Miyake GM, Lavallo V. Synthesis and Reactivity of a Zwitterionic Palladium Allyl Complex Supported by a Perchlorinated Carboranyl Phosphine. Inorg Chem 2015; 54:5142-4. [DOI: 10.1021/acs.inorgchem.5b00576] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jess Estrada
- Center
for Catalysis, Department of Chemistry University of California—Riverside, Riverside, California 92521, United States
| | - David H. Woen
- Center
for Catalysis, Department of Chemistry University of California—Riverside, Riverside, California 92521, United States
| | - Fook S. Tham
- Center
for Catalysis, Department of Chemistry University of California—Riverside, Riverside, California 92521, United States
| | - Garret M. Miyake
- Department
of Chemistry and Biochemistry, Universty of Colorado—Boulder, Boulder, Colorado 80309, United States
| | - Vincent Lavallo
- Center
for Catalysis, Department of Chemistry University of California—Riverside, Riverside, California 92521, United States
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17
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Popescu AR, Rojo I, Teixidor F, Sillanpää R, Viñas C. Intramolecular Communication in Anionic Oxidized Phosphanes through a Chelated Proton. Chemistry 2015; 21:8613-25. [DOI: 10.1002/chem.201500307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Indexed: 11/10/2022]
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18
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Lugo CA, Moore CE, Rheingold AL, Lavallo V. Synthesis of a Hybrid m-Terphenyl/o-Carborane Building Block: Applications in Phosphine Ligand Design. Inorg Chem 2015; 54:2094-6. [DOI: 10.1021/ic5030636] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Christopher A. Lugo
- Department of Chemistry, University of California—Riverside (UCR), Riverside, California 92521, United States
| | - Curtis E. Moore
- Department
of Chemistry and Biochemistry, University of California—San Diego, La Jolla, California 92093, United States
| | - Arnold L. Rheingold
- Department
of Chemistry and Biochemistry, University of California—San Diego, La Jolla, California 92093, United States
| | - Vincent Lavallo
- Department of Chemistry, University of California—Riverside (UCR), Riverside, California 92521, United States
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19
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Tiedemann MA, Mandell CL, Chan BC, Nataro C. X-ray structures and oxidative electrochemistry of phosphine sulfides and phosphine selenides. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Pyykkö P. Additive Covalent Radii for Single-, Double-, and Triple-Bonded Molecules and Tetrahedrally Bonded Crystals: A Summary. J Phys Chem A 2014; 119:2326-37. [DOI: 10.1021/jp5065819] [Citation(s) in RCA: 374] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Pekka Pyykkö
- Department of Chemistry, University of Helsinki, POB 55 (A. I. Virtasen aukio 1), 00014 Helsinki, Finland
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21
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Popescu AR, Teixidor F, Viñas C. Metal promoted charge and hapticities of phosphines: The uniqueness of carboranylphosphines. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.016] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Crespo O, Gimeno MC, Laguna A, Lehtonen O, Ospino I, Pyykkö P, Villacampa MD. Structural and Photophysical Study on Heterobimetallic Complexes with d8-d10Interactions Supported by Carborane Ligands: Theoretical Analysis of the Emissive Behaviour. Chemistry 2014; 20:3120-7. [DOI: 10.1002/chem.201303735] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Indexed: 11/09/2022]
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23
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Yao ZJ, Jin GX. Transition metal complexes based on carboranyl ligands containing N, P, and S donors: Synthesis, reactivity and applications. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.02.004] [Citation(s) in RCA: 189] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Drisch M, Sprenger JAP, Finze M. Carba-closo-dodecaborate Anions with Cluster Carbon-Phosphorous Bonds. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Yao ZJ, Lin YJ, Li ZH, Jin GX. CC Bond Cleavage of Zwitterionic Carboranes Promoted by a Half-Sandwich Iridium(III) Complex. Chemistry 2013; 19:2611-4. [DOI: 10.1002/chem.201203850] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 11/18/2012] [Indexed: 11/08/2022]
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26
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B–H bond activation half-sandwich Ir and Ru complexes containing carboranylamidinate selenolate ligands. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.05.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Wrackmeyer B, Klimkina EV, Milius W. 2‐Halogeno‐1,3,2‐diselenaphospholanes with an Annelated Dicarba‐
closo
‐dodecaborane(12) Unit: Synthesis, Molecular Structure and Reactivity. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200163] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bernd Wrackmeyer
- Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany, Fax: +49‐921‐552157
| | - Elena V. Klimkina
- Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany, Fax: +49‐921‐552157
| | - Wolfgang Milius
- Anorganische Chemie I, Universität Bayreuth, 95440 Bayreuth, Germany
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28
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Yao ZJ, Jin GX. Synthesis, Reactivity, and Structural Transformation of Mono- and Binuclear Carboranylamidinate-Based 3d Metal Complexes and Metallacarborane Derivatives. Organometallics 2012. [DOI: 10.1021/om2011358] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zi-Jian Yao
- Shanghai Key Laboratory
of Molecular
Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China
| | - Guo-Xin Jin
- Shanghai Key Laboratory
of Molecular
Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic
of China
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29
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Popescu AR, Musteti AD, Ferrer-Ugalde A, Viñas C, Núñez R, Teixidor F. Influential Role of Ethereal Solvent on Organolithium Compounds: The Case of Carboranyllithium. Chemistry 2012; 18:3174-84. [DOI: 10.1002/chem.201102626] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Indexed: 01/27/2023]
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30
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31
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Farràs P, Teixidor F, Rojo I, Kivekäs R, Sillanpää R, González-Cardoso P, Viñas C. Relaxed but highly compact diansa metallacyclophanes. J Am Chem Soc 2011; 133:16537-52. [PMID: 21905695 DOI: 10.1021/ja205850p] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of monoansa [μ-1,1'-PR-3,3'-Co(1,2-C(2)B(9)H(10))(2)](-) and diansa [8,8'-μ-(1'',2''-benzene)-μ-1,1'-PR-3,3'-Co(1,2-C(2)B(9)H(9))(2)](-) (R = Ph, (t)Bu) cobaltabisdicarbollidephanes have been synthesized, characterized and studied by NMR, MALDI-TOF-MS, UV-visible spectroscopy, cyclic voltammetry, and DFT calculations. Single crystal X-ray diffraction revealed a highly relaxed structure characterized by the title angle α of 3.8° ([7](-)), this being the smallest angle α for a metallacyclophane. In such compounds, the metal-to-phosphorus distance is less than the sum of their van der Waals radii. The availability of a phosphorus lone pair causes an electron delocalization through the metal, as shown by the abnormal (31)P NMR chemical shift. Remarkably, the combination of a phosphine donor and a phenyl acceptor moieties causes a synergistic effect that is observed through the different techniques used in this study. The importance of having an available lone pair is demonstrated by the oxidation of phosphorus with hydrogen peroxide, sulfur, and elemental black selenium to produce the corresponding P(V) compounds. When the electron lone pair is used to form the bond with the corresponding chalcogen atom, the communication between the donor and acceptor moieties on the diansa metallacyclophane is shut down.
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Affiliation(s)
- Pau Farràs
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la U.A.B., E-08193 Bellaterra, Spain
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32
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Yao ZJ, Jin GX. Monophosphine-o-Carborane Sulfide as a Noninnocent Ligand for C,S, S,S′, and B,S,S′ Coordination Modes of Half-Sandwich Iridium and Rhodium Complexes. Organometallics 2011. [DOI: 10.1021/om200528q] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zi-Jian Yao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China
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