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Knispel C, Limberg C, Tschersich C. A molecular Mo4Bi4 framework composed exclusively of unsupported metal-metal bonds. Chem Commun (Camb) 2011; 47:10794-6. [PMID: 21892472 DOI: 10.1039/c1cc14616e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of [Cp(2)MoH(2)] with bismuth allyloxide, [Bi{OCH(CH(3))CH==CH(2)}(3)], gave rise to an extended octanuclear complex wherein two cyclic Mo(2)Bi(2) units composed of four Mo-Bi bonds are linked by a Bi-Bi bond. The fact that the construction of such an assembly could be accomplished only in the case of a monomethylation of the parent allyl residue demonstrates a subtle substituent effect.
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Affiliation(s)
- Christina Knispel
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489 Berlin, Germany
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2
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Affiliation(s)
- Christina Knispel
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Christian Limberg
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Burkhard Ziemer
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
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3
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Kou X, Wang X, Mendoza-Espinosa D, Zakharov LN, Rheingold AL, Watson WH, Brien KA, Jayarathna LK, Hanna TA. Bismuth Aryloxides. Inorg Chem 2009; 48:11002-16. [DOI: 10.1021/ic901134t] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaodi Kou
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
| | - Xiaoyu Wang
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
| | | | - Lev N. Zakharov
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, m/c 0358, La Jolla, California 92093-0358
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, m/c 0358, La Jolla, California 92093-0358
| | - William H. Watson
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
| | - Kimberly A. Brien
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
| | - L. Kasun Jayarathna
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
| | - Tracy A. Hanna
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
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Mendoza-Espinosa D, Hanna TA. Heterobimetallic Bismuth(III)/Molybdenum(VI) and Antimony(III)/Molybdenum(VI) Calix[5]arene Complexes. Progress toward Modeling the SOHIO Catalyst. Inorg Chem 2009; 48:7452-6. [DOI: 10.1021/ic901103r] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Tracy A. Hanna
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129
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5
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Stavila V, Thurston JH, Whitmire KH. Selective Arylation Reactions of Bismuth−Transition Metal Salicylate Complexes. Inorg Chem 2009; 48:6945-51. [PMID: 19537724 DOI: 10.1021/ic9010357] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vitalie Stavila
- Department of Chemistry, MS 60, Rice University, 6100 Main Street, Houston, Texas 77005
| | - John H. Thurston
- Department of Chemistry, MS 60, Rice University, 6100 Main Street, Houston, Texas 77005
| | - Kenton H. Whitmire
- Department of Chemistry, MS 60, Rice University, 6100 Main Street, Houston, Texas 77005
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6
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Knispel C, Limberg C, Mehring M. Opening of Bent Bi−C Bonds by Silanols To Give Stable Cp2Mo(μ-BiOR)2MoCp2 Complexes. Organometallics 2008. [DOI: 10.1021/om8008662] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christina Knispel
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Christian Limberg
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Michael Mehring
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
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Alonso JC, Neves P, Pires da Silva MJ, Quintal S, Vaz PD, Silva C, Valente AA, Ferreira P, Calhorda MJ, Félix V, Drew MGB. Molybdenum η3-Allyl Dicarbonyl Complexes as a New Class of Precursors for Highly Reactive Epoxidation Catalysts with tert-Butyl Hydroperoxide. Organometallics 2007. [DOI: 10.1021/om700348w] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- João C. Alonso
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Patrícia Neves
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Maria João Pires da Silva
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Susana Quintal
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Pedro D. Vaz
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Carlos Silva
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Anabela A. Valente
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Paula Ferreira
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Maria José Calhorda
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Vitor Félix
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
| | - Michael G. B. Drew
- Departamento de Engenharia Cerâmica e do Vidro, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal, Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal, and School of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, U.K
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From molecules to bismuth oxide-based materials: Potential homo- and heterometallic precursors and model compounds. Coord Chem Rev 2007. [DOI: 10.1016/j.ccr.2006.06.005] [Citation(s) in RCA: 251] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Limberg C. The SOHIO Process as an Inspiration for Molecular Organometallic Chemistry. TOP ORGANOMETAL CHEM 2006. [DOI: 10.1007/3418_055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Hoppe E, Limberg C, Ziemer B, Mügge C. Vanadium calixarene complexes as molecular models for supported vanadia. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2006.02.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Mehring M, Mansfeld D, Paalasmaa S, Schürmann M. Polynuclear Bismuth-Oxo Clusters: Insight into the Formation Process of a Metal Oxide. Chemistry 2006; 12:1767-81. [PMID: 16331714 DOI: 10.1002/chem.200500857] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The reaction of the bismuth silanolates [Bi(OSiR2R')3] (R = R' = Me, Et, iPr; R = Me, R' = tBu) with water has been studied. Partial hydrolysis gave polynuclear bismuth-oxo clusters whereas amorphous bismuth-oxo(hydroxy) silanolates were obtained when an excess of water was used in the hydrolysis reaction. The metathesis reaction of BiCl3 with NaOSiMe3 provided mixtures of heterobimetallic silanolates. The molecular structures of [Bi18Na4O20(OSiMe3)18] (2), [Bi33NaO38(OSiMe3)24].3 C7H8 (3.3 C7H8), [Bi50Na2O64(OH)2(OSiMe3)22].2 C7H8.2H2O (4.2 C7H8.2 H2O), [Bi4O2(OSiEt3)8] (5), [Bi9O7(OSiMe3)13].0.5 C7H8 (6. 0.5C7H8), [Bi18O18(OSiMe3)18)].2C7H8 (7. 2C7H8) and [Bi20O18(OSiMe3)24].3C7H8 (8.3C7H8) are presented and compared with the solid-state structures of [Bi22O26(OSiMe2tBu)14] (9) and beta-Bi2O3. Compound 2 crystallises in the triclinic space group P1 with the lattice constants a = 17.0337(9), b = 19.5750(14), c = 26.6799(16) A, alpha = 72.691(4), beta = 73.113(4) and gamma = 70.985(4) degrees ; compound 3.3C7H8 crystallises in the monoclinic space group P2(1)/n with the lattice constants a = 20.488(4), b = 22.539(5), c = 26.154(5) A and beta = 100.79(3) degrees ; compound 4.2C7H82 H2O crystallises in the monoclinic space group P2(1)/n with the lattice constants a = 20.0518(12), b = 24.1010(15), c = 27.4976(14) A and beta = 103.973(3) degrees ; compound 5 crystallises in the monoclinic space group P2(1)/c with the lattice constants a = 25.256(5), b = 15.372(3), c = 21.306(4) A and beta = 113.96(3) degrees ; compound 6.0.5C7H8 crystallises in the triclinic space group P1 with the lattice constants a = 15.1916(9), b = 15.2439(13), c = 22.487(5) A, alpha = 79.686(3), beta = 74.540(5) and gamma = 66.020(4) degrees ; compound 7.2C7H8 crystallises in the triclinic space group P1 with the lattice constants a = 14.8295(12), b = 16.1523(13), c = 18.4166(17) A, alpha = 75.960(4), beta = 79.112(4) and gamma = 63.789(4) degrees ; and compound 8.3C7H8 crystallises in the triclinic space group P1 with the lattice constants a = 17.2915(14), b = 18.383(2), c = 18.4014(18) A, alpha = 95.120(5), beta = 115.995(5) and gamma = 106.813(5) degrees . The molecular structures of the bismuth-rich compounds are related to the CaF2-type structure. Formally, the hexanuclear [Bi6O8]2+ fragment might be described as the central building unit, which is composed of bismuth atoms placed at the vertices of an octahedron and oxygen atoms capping the trigonal faces. Depending on the reaction conditions and the identity of R, the thermal decomposition of the hydrolysis products [Bi(n)O(l)(OH)(m-)(OSiR3)(3n-(2l-m))] gives alpha-Bi2O3, beta-Bi2O3, Bi12SiO20 or Bi4Si3O12.
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Affiliation(s)
- Michael Mehring
- Anorganische Chemie II, Fachbereich Chemie der Universität Dortmund, Otto-Hahn-Str. 6, 44227 Dortmund, Germany.
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Mehring M, Mansfeld D, Costisella B, Schürmann M. The First Metal-Oxo Cluster Containing Lithium and Bismuth. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200500629] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Mehring M, Paalasmaa S, Schürmann M. Structural Relationships in High-Nuclearity Heterobimetallic Bismuth-Oxo Clusters. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200500636] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Ould-Ely T, Thurston JH, Whitmire KH. Heterobimetallic bismuth–transition metal coordination complexes as single-source molecular precursors for the formation of advanced oxide materials. CR CHIM 2005. [DOI: 10.1016/j.crci.2005.04.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Roggan S, Limberg C, Ziemer B. Molecular Compounds with Mo-O-Bi Moieties. Angew Chem Int Ed Engl 2005; 44:5259-62. [PMID: 16034991 DOI: 10.1002/anie.200500375] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Stefan Roggan
- Humboldt-Universität zu Berlin, Institut für Chemie, Germany
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The structural characterization of the first mononuclear alkoxide cation: Isolation and X-ray study of [Mo(OMe)5(CH3CN)]Bi2Cl7. INORG CHEM COMMUN 2005. [DOI: 10.1016/j.inoche.2005.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Mansfeld D, Mehring M, Schürmann M. From a Monomeric Bismuth Silanolate to a Molecular Bismuth Oxo Cluster: [Bi22O26(OSiMe2tBu)14]. Angew Chem Int Ed Engl 2004; 44:245-9. [PMID: 15614925 DOI: 10.1002/anie.200461476] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dirk Mansfeld
- Universität Dortmund, Lehrstuhl für Anorganische Chemie II, 44221 Dortmund, Germany
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Mansfeld D, Mehring M, Schürmann M. Ein monomeres Bismutsilanolat zur Synthese des Bismutoxoclusters [Bi22O26(OSiMe2tBu)14]. Angew Chem Int Ed Engl 2004. [DOI: 10.1002/ange.200461476] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Thurston JH, Kumar A, Hofmann C, Whitmire KH. Heterobimetallic Bi(III)−Ti(IV) Coordination Complexes: Synthesis and Solid-State Structures of BiTi4(sal)6(μ-OiPr)3(OiPr)4, and the Cyclic Isomers Bi4Ti4(sal)10(μ-OiPr)4(OiPr)4 and Bi8Ti8(sal)20(μ-OiPr)8(OiPr)8. Inorg Chem 2004; 43:8427-36. [PMID: 15606191 DOI: 10.1021/ic049061e] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of a 1:2 mixture of bismuth(III) salicylate with titanium(IV) isopropoxide in refluxing toluene has been investigated and found to proceed with ligand exchange to produce the new heterobimetallic complexes BiTi(4)(sal)(6)(mu-O(i)Pr)(3)(O(i)Pr)(4) (1), Bi(4)Ti(4)(sal)(10)(mu-O(i)Pr)(4)(O(i)Pr)(4) (2), and Bi(8)Ti(8)(sal)(20)(mu-O(i)Pr)(8)(O(i)Pr)(8) (3). Complex 1 is the major product, while 2 and 3 were identified as minor products from the reaction. Compound 1 is produced pure and in high yield by employing stoichiometric amounts of reagents; its crystal structure consists of a [Ti(4)(sal)(6)(O(i)Pr)(7)](3)(-) ion capped by a Bi(3+) ion. Complexes 2 and 3 exhibit cyclic ring structures of bismuth and titanium atoms showing crystallographically imposed inversion symmetry. Both structures occlude large quantities of lattice solvent. The compositional and structural parameters from the single crystal studies indicate that complexes 2 and 3 may represent sequential steps in a ligand exchange process between the two metal species, while the reactivity patterns that were observed provide clues about the solution state structure of bismuth(III) salicylate itself. The 2D COSY (1)H NMR spectrum of 1 indicates retention of the asymmetric structure in solution as evidenced by the presence of 14 diastereotopic isopropoxide methyl resonances.
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Affiliation(s)
- John H Thurston
- Department of Chemistry, Rice University, Houston, Texas 77005, USA
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Aboelella NW, York JT, Reynolds AM, Fujita K, Kinsinger CR, Cramer CJ, Riordan CG, Tolman WB. Mixed metal bis(mu-oxo) complexes with [CuM(mu-O)2]n+(M = Ni(III) or Pd(II)) cores. Chem Commun (Camb) 2004:1716-7. [PMID: 15278152 DOI: 10.1039/b404640d] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two highly reactive heterodinuclear bis(mu-oxo) complexes were prepared by combining mononuclear peroxo species with reduced metal precursors at -80 degrees C and were identified by UV-vis, EPR/NMR, and resonance Raman spectroscopy, with corroboration in the case of the CuPd system from density functional calculations.
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Affiliation(s)
- Nermeen W Aboelella
- Department of Chemistry, Center for Metals in Biocatalysis, Supercomputer Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455, USA
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Bachman RE, Whitmire KH, Thurston JH, Gulea A, Stavila O, Stavila V. Bismuth ladder polymers: structural and thermal studies of [Bi(OCH2CH2)3N]n and [(BixTb1−x(O2C2H2)3N·2H2O]n. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01381-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Goodyear JW, Hemingway CW, Harrington RW, Wiseman MR, Brisdon BJ. The crystal structure of [Mo(NCS)(CO)2(η3-C3H5)(NCMe)2]·MeCN and the reactions of {Mo(CO)2(η3-C3H5)+} containing species with symmetric alkynes. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01981-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Thurston JH, Whitmire KH. Heterobimetallic bismuth-transition metal salicylate complexes as molecular precursors for ferroelectric materials. Synthesis and structure of Bi(2)M(2)(sal)(4)(Hsal)(4)(OR) (4) (M = Nb, Ta; R = CH(2)CH(3), CH(CH(3))(2)), Bi(2)Ti(3)(sal)(8)(Hsal)(2), and Bi(2)Ti(4)(O(i)Pr)(sal)(10)(Hsal) (sal = O(2)CC(6)H(4)-2-O; Hsal = O(2)CC(6)H(4)-2-OH). Inorg Chem 2002; 41:4194-205. [PMID: 12160407 DOI: 10.1021/ic0255454] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reactions between triphenylbismuth, salicylic acid, and the metal alkoxides M(OCH(2)CH(3))(5) (M = Nb, Ta) or Ti[OCH(CH(3))(2)](4) have been investigated under different reaction conditions and in different stoichiometries. Six novel heterobimetallic bismuth alkoxy-carboxylate complexes have been synthesized in good yield as crystalline solids. These include Bi(2)M(2)(sal)(4)(Hsal)(4)(OR)(4) (M = Nb, Ta; R = CH(2)CH(3), CH(CH(3))(2)), Bi(2)Ti(3)(sal)(8)(Hsal)(2), and Bi(2)Ti(4)(O(i)Pr)(sal)(10)(Hsal) (sal = O(2)CC(6)H(4)-2-O; Hsal = O(2)CC(6)H(4)-2-OH). The complexes have been characterized spectroscopically and by single-crystal X-ray diffraction. Compounds of the group V transition metals contain metal ratios appropriate for precursors of ferroelectric materials. The molecules exhibit excellent solubility in common organic solvents and good stability against unwanted hydrolysis. The nature of the thermal decomposition of the complexes has been explored by thermogravimetric analysis and powder X-ray diffraction. We have shown that the complexes are converted to the corresponding oxide by heating in an oxygen atmosphere at 500 degrees C. The mass loss of the complexes, as indicated by thermogravimetric analysis, and the resulting unit cell parameters of the oxides are consistent with the formation of the desired heterobimetallic oxide. The complexes decomposed to form the bismuth-rich phases Bi(4)Ti(3)O(12) and Bi(5)Nb(3)O(15) as well as the expected oxides BiMO(4) (M = Nb, Ta) and Bi(2)Ti(4)O(11).
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Affiliation(s)
- John H Thurston
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, USA
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Hanna TA, Rieger AL, Rieger PH, Wang X. Evidence for an unstable Bi(II) radical from Bi-O bond homolysis. Implications in the rate-determining step of the SOHIO process. Inorg Chem 2002; 41:3590-2. [PMID: 12099857 DOI: 10.1021/ic0202864] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of BiCl(3) with the lithium salt of o-di-tert-butylphenol under nitrogen forms organic oxidation products rather than the expected Bi(OAr)(3) complex, and bismuth disproportionation products. Likewise, the decomposition of Bi(III) aryloxides Bi(O-2,6-(i)Pr(2)C(6)H(3))(3) and ClBi(O-2,4,6-(t)Bu(3)C(6)H(2))(3) leads to corresponding organic oxidation products. These reactions can be explained by Bi-O bond homolysis to form unstable Bi(II) radicals, analogous to a fundamental step suggested to intervene in the SOHIO process.
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Affiliation(s)
- Tracy A Hanna
- Department of Chemistry, Campus Box 298860, Texas Christian University, Fort Worth, Texas 76129, USA.
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Limberg C, Hunger M, Habicht W, Kaifer E. Synthesis of heterometallic bismuth/molydenum alkoxides and their behavior on silica surfaces. Inorg Chem 2002; 41:3359-65. [PMID: 12079453 DOI: 10.1021/ic011252j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of [(C(3)H(5))Mo(CO)(2)(CH(3)CN)(2)Cl], 2, with [Bi(OCH(2)CH(2)OCH(3))(3)](2) on a large scale leads to the novel molybdenum/bismuth alkoxide [(C(3)H(5))Mo(CO)(2)(mu-kappa O,2 kappa O'-OCH(2)CH(2)OCH(3))(2)(mu-kappa O-OCH(2)CH(2)OCH(3))BiCl], 6, as the main product as well as to [(C(3)H(5))Mo(CO)(2)(mu-kappa O,2 kappa O'-OCH(2)CH(2)OCH(3))(2)(mu-Cl)BiCl], 4, as a byproduct. Both compounds were characterized by elemental analysis, IR, and NMR spectroscopy as well as by X-ray diffraction. If 6 is brought into contact with a large excess of silica gel, aggregation and condensation reactions are initiated, which led to clusters of ca. 200 nm size spread over the silica surface. When the resulting material is calcinated at 350 degrees C in the presence of O(2), all organic ligands are eliminated and the metal oxo units rearrange: SEM/EDX measurements showed afterward Mo-free bismuth oxo clusters with sizes between 30 and 1000 nm, which are distributed together with molybdenum oxo particles of lower nuclearity over the silica surface. If such a material is employed as a potential catalyst for the propene oxidation under technical conditions, no activity is observed. If, however, the process is performed under very low pressures, a conversion of 5% is found. This result is discussed in the context of the mechanism proposed for the technical oxidation of propene to acrolein on bismuthmolybdate catalysts.
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Affiliation(s)
- Christian Limberg
- Universität Heidelberg, Anorganisch-Chemisches Institut, Im Neuenheimer Feld 270, D-69120, Heidelberg, Germany.
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Hunger M, Limberg C, Kaifer E, Rutsch P. Reactions of cyclopentadienylmolybdenum compounds with bismuth alkoxides. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(01)01303-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hanna TA, Keitany G, Ibarra C, Sommer RD, Rheingold AL. Synthesis and crystal structure of a three-coordinate bismuth alkoxide with bismuth-β-phenyl secondary interactions, Bi(OCPh3)3. Polyhedron 2001. [DOI: 10.1016/s0277-5387(01)00857-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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