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Gange GB, Humphries AL, Royzman DE, Smith MD, Peryshkov DV. Metal-Free Bond Activation by Carboranyl Diphosphines. J Am Chem Soc 2021; 143:10842-10846. [PMID: 34254787 DOI: 10.1021/jacs.1c05387] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report metal-free bond activation by the carboranyl diphosphine 1-PtBu2-2-PiPr2-C2B10H10. This main group element system contains basic binding sites and possesses the ability to cycle through two-electron redox states. The reported reactions with selected main group hydrides and alcohols occur via the formal oxidation of the phosphine groups and concomitant reduction of the boron cage. These transformations, which are driven by the cooperation between the electron-donating exohedral substituents and the electron-accepting cluster, differ from those of "regular" phosphines and are reminiscent of oxidative addition to transition metal centers, thus representing a new approach to metal-free bond activation.
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Affiliation(s)
- Gayathri B Gange
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Amanda L Humphries
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Dmitry E Royzman
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Mark D Smith
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Dmitry V Peryshkov
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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2
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Coburger P, Bielytskyi P, Williamson D, Rys E, Kreienbrink A, Lönnecke P, Matysik J, Hey-Hawkins E. Accessing the First nido-Carborane-Substituted Diphosphetane: A Ligand and Synthon for nido-Carboranylphosphanes. Chemistry 2019; 25:11456-11465. [PMID: 31074568 DOI: 10.1002/chem.201900989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/04/2019] [Indexed: 11/06/2022]
Abstract
Deboronation of a carborane-substituted diphosphetane 2 in toluene yielded the first nido-carboranyldiphosphetane 1. The P-P bond in 1 can be broken via dismutation reactions with diaryl dichalcogenides yielding nido-carboranyl bis-phosphanes that were not accessible via established synthetic protocols. Additionally, transition metal complexes of 1 could be isolated including one coordination polymer. Notably, when the deboronation of 2 is carried out in ethanol, unprecedented nido-carborane-substituted secondary bis-phosphane monoxides (3, 4) are obtained. These compounds are interesting starting materials for further reactivity studies due to their P-H bonds. Experimental findings are supported by DFT calculations including the calculation of reaction mechanisms and NMR spectroscopic parameters.
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Affiliation(s)
- Peter Coburger
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Pavlo Bielytskyi
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Analytical Chemistry, Linnéstraße 3, 04103, Leipzig, Germany
| | - Darcy Williamson
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany.,Monash University, Wellington Rd, Clayton, VIC 3800, Australia
| | - Evgeny Rys
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany.,A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Science, Vavilov Str. 28, 117813, Moscow, Russia
| | - Anika Kreienbrink
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Peter Lönnecke
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, 04103, Leipzig, Germany
| | - Jörg Matysik
- Leipzig University, Faculty of Chemistry and Mineralogy, Institute of Analytical Chemistry, Linnéstraße 3, 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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3
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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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4
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Coburger P, Schulz J, Klose J, Schwarze B, Sárosi MB, Hey-Hawkins E. C 2-Symmetric P,N Ligands Derived from Carborane-Based Diphosphetanes: Synthesis and Coordination Chemistry. Inorg Chem 2016; 56:292-304. [PMID: 27958718 DOI: 10.1021/acs.inorgchem.6b02173] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Racemic carborane-based bisphosphanes were obtained by dismutation reactions between a carborane-based diphosphetane and diaryl dichalogenides. NMR spectroscopic and theoretical studies revealed a two-step mechanism explaining the high stereoselectivity of these reactions. The coordination chemistry of the multidentate P,N ligands 6c and 6d in copper(I) and silver(I) complexes was studied. While 6d acted exclusively as tetradentate ligand, 6c showed either tridentate or tetradentate coordination depending on the metal and the counterion.
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Affiliation(s)
- Peter Coburger
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
| | - Jan Schulz
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
| | - Jennifer Klose
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
| | - Benedikt Schwarze
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
| | - Menyhárt B Sárosi
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
| | - Evamarie Hey-Hawkins
- Leipzig University , Faculty of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Johannisallee 29, D-04103 Leipzig, Germany
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5
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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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6
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Yang L. Bis(μ-nitrato-κ 2O: O)bis{[1,2-bis(diisopropylphosphanyl)-1,2-dicarba- closo-dodecaborane-κ 2P, P′]silver(I)} dichloromethane disolvate. Acta Crystallogr Sect E Struct Rep Online 2014; 70:m141. [PMID: 24826102 PMCID: PMC3998584 DOI: 10.1107/s1600536814006084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 03/19/2014] [Indexed: 11/10/2022]
Abstract
The title compound, [Ag2(NO3)2(C14H38B10P2)2]·2CH2Cl2, was synthesized by the reaction of 1,2-bis(diisopropylphosphanyl)-1,2-dicarba-closo-dodecaborane with AgNO3. The resulting dinuclear molecule has crystallographically imposed inversion symmetry. The diisopropylphosphanyl-closo-carborane ligand is coordinated in a bidentate manner to the AgIatom through the two P atoms. The distorted tetrahedral coordination of the metal is completed by two O atoms of two bridging nitrate anions. The separation between the two AgIatoms is 3.8913 (5) Å. C—H...O hydrogen bonds are observed involving the dichloromethane solvent molecule and the nitrate anion.
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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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8
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Weber L, Kahlert J, Brockhinke R, Böhling L, Brockhinke A, Stammler HG, Neumann B, Harder RA, Fox MA. Luminescence properties of C-diazaborolyl-ortho-carboranes as donor-acceptor systems. Chemistry 2012; 18:8347-57. [PMID: 22623079 DOI: 10.1002/chem.201200390] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Indexed: 11/08/2022]
Abstract
Seven derivatives of 1,2-dicarbadodecaborane (ortho-carborane, 1,2-C(2)B(10)H(12)) with a 1,3-diethyl- or 1,3-diphenyl-1,3,2-benzodiazaborolyl group on one cage carbon atom were synthesized and structurally characterized. Six of these compounds showed remarkable low-energy fluorescence emissions with large Stokes shifts of 15100-20260 cm(-1) and quantum yields (Φ(F)) of up to 65% in the solid state. The low-energy fluorescence emission, which was assigned to a charge-transfer (CT) transition between the cage and the heterocyclic unit, depended on the orientation (torsion angle, ψ) of the diazaborolyl group with respect to the cage C-C bond. In cyclohexane, two compounds exhibited very weak dual fluorescence emissions with Stokes shifts of 15660-18090 cm(-1) for the CT bands and 1960-5540 cm(-1) for the high-energy bands, which were assigned to local transitions within the benzodiazaborole units (local excitation, LE), whereas four compounds showed only CT bands with Φ(F) values between 8-32%. Two distinct excited singlet-state (S(1)) geometries, denoted S(1)(LE) and S(1)(CT), were observed computationally for the benzodiazaborolyl-ortho-carboranes, the population of which depended on their orientation (ψ). TD-DFT calculations on these excited state geometries were in accord with their CT and LE emissions. These C-diazaborolyl-ortho-carboranes were viewed as donor-acceptor systems with the diazaborolyl group as the donor and the ortho-carboranyl group as the acceptor.
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Affiliation(s)
- Lothar Weber
- Fakultät für Chemie der Universität Bielefeld, 33615 Bielefeld, Germany.
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9
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Fey N, Haddow MF, Mistry R, Norman NC, Orpen AG, Reynolds TJ, Pringle PG. Regioselective B-Cyclometalation of a Bulky o-Carboranyl Phosphine and the Unexpected Formation of a Dirhodium(II) Complex. Organometallics 2012. [DOI: 10.1021/om201198s] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Natalie Fey
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Mairi F. Haddow
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Rakesh Mistry
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Nicholas C. Norman
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - A. Guy Orpen
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Timothy J. Reynolds
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
| | - Paul G. Pringle
- School of Chemistry, University of Bristol, Cantock’s
Close, Bristol BS8 1TS, U.K
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10
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Lerouge F, Ferrer-Ugalde A, Viñas C, Teixidor F, Sillanpää R, Abreu A, Xochitiotzi E, Farfán N, Santillan R, Núñez R. Synthesis and fluorescence emission of neutral and anionic di- and tetra-carboranyl compounds. Dalton Trans 2011; 40:7541-50. [PMID: 21701761 DOI: 10.1039/c1dt10309a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of photoluminescent neutral and anionic di-carboranyl and tetra-carboranyl derivatives have been synthesized and characterized. The reaction of α,α'-bis(3,5-bis(bromomethyl)phenoxy-m-xylene with 4 equiv. of the monolithium salt of 1-Ph-1,2-C(2)B(10)H(11) or 1-Me-1,2-C(2)B(10)H(11) gives the neutral tetracarboranyl-functionalized aryl ether derivatives closo-1 and closo-2, respectively. The addition of the monolithium salt of 1-Ph-1,2-closo-C(2)B(10)H(11) to α,α,'-dibromo-m-xylene or 2,6-dibromomethyl-pyridine gives the corresponding di-carboranyl derivatives closo-3 and closo-4. These compounds, which contain four or two closo clusters, were degraded using the classical method, KOH in EtOH, affording the corresponding nido species, which were isolated as potassium or tetramethylammonium salts. All the compounds were characterized by IR, (1)H, (11)B and (13)C NMR spectroscopy, and the crystal structure of closo-3 was analysed by X-ray diffraction. The carboranyl fragments are bonded through CH(2) units to different organic moieties, and their influence on the photoluminescent properties of the final molecules has been studied. All the closo- and nido-carborane derivatives exhibit a blue emission under ultraviolet excitation at room temperature in different solvents. The fluorescence properties of these closo and nido-derivatives depend on the substituent (Ph or Me) bonded to the C(cluster), the solvent polarity, and the organic unit bearing the carborane clusters (benzene or pyridine). In the case of nido-derivatives, an important effect of the cation is also observed.
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Affiliation(s)
- Frédéric Lerouge
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193, Bellaterra (Barcelona), Spain
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11
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Popescu A, Laromaine A, Teixidor F, Sillanpää R, Kivekäs R, Llambias JI, Viñas C. Uncommon Coordination Behaviour of P(S) and P(Se) Units when Bonded to Carboranyl Clusters: Experimental and Computational Studies on the Oxidation of Carboranyl Phosphine Ligands. Chemistry 2011; 17:4429-43. [DOI: 10.1002/chem.201003330] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Adrian‐Radu Popescu
- Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B. 08193 Bellaterra (Spain), Fax: (+34) 93‐580‐57‐29
| | - Anna Laromaine
- Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B. 08193 Bellaterra (Spain), Fax: (+34) 93‐580‐57‐29
| | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B. 08193 Bellaterra (Spain), Fax: (+34) 93‐580‐57‐29
| | - Reijo Sillanpää
- Department of Chemistry, University of Jyväskylä, 40014, Jyväskylä (Finland)
| | - Raikko Kivekäs
- Department of Chemistry, P.O. Box 55, University of Helsinki, 00014 (Finland)
| | - Joan Ignasi Llambias
- Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B. 08193 Bellaterra (Spain), Fax: (+34) 93‐580‐57‐29
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (CSIC), Campus U.A.B. 08193 Bellaterra (Spain), Fax: (+34) 93‐580‐57‐29
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Yang L, Zhu C, Li D. Di-μ-thiocyanato-bis{[1,2-bis(diisopropylphosphanyl)-1,2-dicarba- closo-dodecaborane]silver(I)}. Acta Crystallogr Sect E Struct Rep Online 2011; 67:m2. [PMID: 21522546 PMCID: PMC3050408 DOI: 10.1107/s1600536810049263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 11/25/2010] [Indexed: 11/10/2022]
Abstract
The title compound, [Ag2(NCS)2(C14H38B10P2)2], was synthesized by the reaction of 1,2-bis(diisopropylphosphanyl)-1,2-dicarba-closo-dodecaborane with AgSCN. The diisopropylphosphanyl-closo-carborane ligand is coordinated in a bidentate manner to the AgI atom through the two P atoms. The coordination of the AgI atom is distorted tetrahedral, in which two vertices are formed by the P atoms of the chelating diphosphine ligand, and the other two are occupied by the S and N atoms of the two bridging thiocyanate anions, leading to a centrosymmetric binuclear complex. The distance between the two C atoms in the carborane skeleton is 1.851 (6) Å.
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13
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Stadlbauer S, Lönnecke P, Welzel P, Hey-Hawkins E. Highly Water-Soluble Carbaborane-Bridged Bis(glycophosphonates). European J Org Chem 2009. [DOI: 10.1002/ejoc.200900813] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Fox MA, Peace RJ, Clegg W, Elsegood MR, Wade K. Trends in ortho-carboranes 1-X-2-R-1,2-C2B10H10 (R=Ph, Me) bearing an exo-CN-bonded substituent group (X=NO, NNR′ or NHR′′). Polyhedron 2009. [DOI: 10.1016/j.poly.2009.04.041] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Fox MA, MacBride JH, Peace RJ, Clegg W, Elsegood MR, Wade K. New synthetic and structural studies on nitroso-ortho-carboranes RCB10H10CNO and bis(ortho-carboranyl)amines (RCB10H10C)2NH (R=Ph or Me). Polyhedron 2009. [DOI: 10.1016/j.poly.2008.12.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Teixidor F, Laromaine A, Kivekäs R, Sillanpää R, Viñas C, Vespalec R, Horáková H. Synthesis, reactivity and complexation studies of N,S exo-heterodisubstituted o-carborane ligands. Carborane as a platform to produce the uncommon bidentate chelating (pyridine)N-C-C-C-S(H) motif. Dalton Trans 2008:345-54. [DOI: 10.1039/b715362g] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Núñez R, Teixidor F, Kivekäs R, Sillanpää R, Viñas C. Influence of the solvent and R groups on the structure of (carboranyl)R2PI2 compounds in solution. Crystal structure of the first iodophosphonium salt incorporating the anion [7,8-nido-C2B9H10]−. Dalton Trans 2008:1471-80. [DOI: 10.1039/b716217k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dou J, Su F, Nie Y, Li D, Wang D. Self-assembled 2D supramolecular networks of copper(i) carborane complexes through C–H⋯H–B dihydrogen bonding interactions. Dalton Trans 2008:4152-6. [DOI: 10.1039/b801339j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Su F, Guo Q, Dou J, Li D, Wang D. [1,2-Bis(diisopropyl-phosphino)-1,2-dicarba-closo-dodeca-borane-κP,P']dichloridomercury(II). Acta Crystallogr Sect E Struct Rep Online 2007; 64:m134. [PMID: 21200491 PMCID: PMC2915082 DOI: 10.1107/s1600536807065130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2007] [Accepted: 12/02/2007] [Indexed: 11/10/2022]
Abstract
In the title complex, [HgCl(2)(C(14)H(38)B(10)P(2))], the Hg(II) atom is in a distorted HgCl(2)P(2) tetra-hedral coordination environment. The chelation of the Hg atom by two P atoms and two C atoms from the carborane skeleton results in a nearly planar five-membered ring.
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Plasticity of the five-membered chelate ring in [PdCl2(1,2-(PR2)2-1,2-C2B10H10)] complexes (R=H or iPr). Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.12.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Glukhov I, Antipin M, Lyssenko K. C−C Bond Variation in the 1-Phenyl-o-carborane: Steric versus Electronic Effects. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200300743] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Boyd LA, Clegg W, Copley RCB, Davidson MG, Fox MA, Hibbert TG, Howard JAK, Mackinnon A, Peace RJ, Wade K. Exo-π-bonding to an ortho-carborane hypercarbon atom: systematic icosahedral cage distortions reflected in the structures of the fluoro-, hydroxy- and amino-carboranes, 1-X-2-Ph-1,2-C2B10H10 (X = F, OH or NH2) and related anions. Dalton Trans 2004:2786-99. [PMID: 15514767 DOI: 10.1039/b406422d] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structures of derivatives of phenyl-ortho-carborane bearing on the second cage hypercarbon atom a pi-donor substituent (F, OH, O-, NH2, NH- and CH2-) were investigated by NMR, X-ray crystallography and computational studies. The molecular structures of these compounds, notably their cage C1-C2 distances and the orientations of their pi-donor substituents (OH, NH2, NH- and CH2-) show remarkable and systematic variations with the degree of exo pi-bonding, which varies as expected with the pi-donor characteristics of the substituent.
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Affiliation(s)
- Lynn A Boyd
- Chemistry Department, Durham University Science Laboratories, South Road, Durham, UK
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Llop J, Viñas C, Oliva JM, Teixidor F, Flores MA, Kivekas R, Sillanpää R. Modulation of the CC distance in disubstituted l,2-R2-o-carboranes. Crystal structure of closo l,2-(SPh)2-l,2-C2B10H10. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01637-6] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Paavola S, Teixidor F, Viñas C, Kivekäs R. Study of the o-carboranyl fragment as an uncommon substituent. Crystal structures of [PdClMe(1,2-(PPh2)2-1,2-C2B10H10)]·CH2Cl2 and [PdClMe(1,2-(PiPr2)2-1,2-C2B10H10)]. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(01)01366-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Synthesis and coordination properties of 1-tert-butylchlorophosphino- and 1,2-bis(tert-butylchlorophosphino)-1,2-dicarba-closo-dodecaborane(12)—molecular structures of rac- and meso-1,2-(PtBuCl)2C2B10H10 and (R,R,R,R/S,S,S,S)-[{Cu{1,2-(PtBuCl)2C2B10H10}(μ-Cl)}2]. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00913-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Oliva J, Viñas C. Electronic structure and assignment of experimental 11 B nuclei NMR signals in the ortho -carborane 1,2-(SH) 2 -1,2-C 2 B 10 H 10 by ab initio calculations. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00646-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Teixidor F, Núñez R, Viñas C, Sillanpää R, Kivekäs R. The Distinct Effect of the o-Carboranyl Fragment: Its Influence on the I-I Distance in R 3 PI 2 Complexes. Angew Chem Int Ed Engl 2000; 39:4290-4292. [PMID: 29711927 DOI: 10.1002/1521-3773(20001201)39:23<4290::aid-anie4290>3.0.co;2-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2000] [Indexed: 11/05/2022]
Affiliation(s)
- Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (CSIC) Campus de la U.A.B. 08193 Bellaterra, Spain, Fax: (+34) 935805729
| | - Reijo Sillanpää
- Department of Chemistry, University of Turku, 20014, Finland
| | - Raikko Kivekäs
- Department of Chemistry, University of Helsinki, 00014, Finland
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Teixidor F, Núñez R, Viñas C, Sillanpää R, Kivekäs R. The Distinct Effect of theo-Carboranyl Fragment: Its Influence on the I−I Distance in R3PI2 Complexes. Angew Chem Int Ed Engl 2000. [DOI: 10.1002/1521-3757(20001201)112:23<4460::aid-ange4460>3.0.co;2-d] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Balema VP, Blaurock S, Pecharsky VK, Rys EG, Hey-Hawkins E. Synthesis and molecular structure of (R,R\S,S)-[PdCl2{ {1,2-(PPhCl)2C2B10H10} }]. Polyhedron 1998. [DOI: 10.1016/s0277-5387(98)00183-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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