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Cuellar De Lucio AJ, Cai IC, Witzke RJ, Desnoyer AN, Tilley TD. Synthesis, Characterization, and Reactivity of Low-Coordinate Titanium(III) Amido Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Irene C. Cai
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Ryan J. Witzke
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Addison N. Desnoyer
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - T. Don Tilley
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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2
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Zitz R, Hlina J, Arp H, Kinschel D, Marschner C, Baumgartner J. Group 4 Metal and Lanthanide Complexes in the Oxidation State +3 with Tris(trimethylsilyl)silyl Ligands. Inorg Chem 2019; 58:7107-7117. [PMID: 31066552 PMCID: PMC6534343 DOI: 10.1021/acs.inorgchem.9b00866] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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A number of paramagnetic
silylated d1 group 4 metallates were prepared by reaction
of potassium tris(trimethylsilyl)silanide with group 4 metallates
of the type K[Cp2MCl2] (M = Ti, Zr, Hf). The
outcomes of the reactions differ for all three metals. While for the
hafnium case the expected complex [Cp2Hf{Si(SiMe3)3}2]− was obtained, the
analogous titanium reaction led to a product with two Si(H)(SiMe3)2 ligands. The reaction with zirconium caused
the formation of a dinuclear fulvalene bridged complex. The desired
[Cp2Zr{Si(SiMe3)3}2]− could be obtained by reduction of Cp2Zr{Si(SiMe3)3}2 with potassium. In related reactions
of potassium tris(trimethylsilyl)silanide with some lanthanidocenes
Cp3Ln (Ln = Ce, Sm, Gd, Ho, Tm) complexes of the type [Cp3Ln Si(SiMe3)3]− with
either [18-crown-6·K]+ or the complex ion [18-crown-6·K·Cp·K·18-crown-6]
as counterions were obtained. Due to d1 or fn electron configuration, unambiguous characterization of all obtained
complexes could only be achieved by single crystal XRD diffraction
analysis. Reactions of (Me3Si)3SiK with K[Cp2MCl2] (M = Ti, Zr, Hf) gave different paramagnetic
silylated d1 Group 4 metal ate complexes. For Hf the complex
[Cp2Hf{Si(SiMe3)3}2]− was formed, but for Ti a product with two Si(H)(SiMe3)2 ligands was isolated. With Zr a dinuclear fulvalene
bridged complex formed but [Cp2Zr{Si(SiMe3)3}2]− could be obtained by reduction
of the neutral complex. In reactions of (Me3Si)3SiK with Cp3Ln (Ln = Ce, Sm, Gd, Ho, Tm) complexes of
the type [Cp3LnSi(SiMe3)3]− were observed.
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Affiliation(s)
- Rainer Zitz
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
| | - Johann Hlina
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
| | - Henning Arp
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
| | - Dominik Kinschel
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
| | - Christoph Marschner
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
| | - Judith Baumgartner
- Institut für Anorganische Chemie , Technische Universität Graz , Stremayrgasse 9 , 8010 Graz , Austria
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3
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Sgro MJ, Piers WE. Synthesis, characterization and reactivity of yttrium and gadolinium silyl complexes. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.04.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Okazaki M, Ebina S. Synthesis and Structure of an η2-Silanimine-coordinated Half-sandwich-type Titanium Complex. CHEM LETT 2014. [DOI: 10.1246/cl.140286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masaaki Okazaki
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University
| | - Shoya Ebina
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University
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5
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Xue ZL, Morton LA. Transition metal alkylidene complexes. Pathways in their formation and tautomerization between bis-alkylidenes and alkyl alkylidynes. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.048] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Qiu H, Chen SJ, Wang CS, Wu YD, Guzei IA, Chen XT, Xue ZL. Synthesis and Characterization of Siloxy, Aminoxy, and Oxo Complexes from the Reaction of a Tantalum Amide Silyl Complex with Oxygen. Inorg Chem 2009; 48:3073-9. [DOI: 10.1021/ic802380u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- He Qiu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Shu-Jian Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Chang-Sheng Wang
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Yun-Dong Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Ilia A. Guzei
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Xue-Tai Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China, Department of Chemistry, Liaoning Normal University, Dalian 116029, China, Department of Chemistry, The University of Wisconsin, Madison, Wisconsin 53706-1396, and State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing
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7
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Ignatov SK, Rees NH, Merkoulov AA, Dubberley SR, Razuvaev AG, Mountford P, Nikonov GI. Silyl Hydrides of Tantalum Supported by Cyclopentadienyl-imido Ligand Sets: Syntheses, X-ray, NMR, and DFT Studies. Organometallics 2008. [DOI: 10.1021/om800553y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stanislav K. Ignatov
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Nicholas H. Rees
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Alexei A. Merkoulov
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Stuart R. Dubberley
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Alexei G. Razuvaev
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Philip Mountford
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
| | - Georgii I. Nikonov
- Department of Chemistry, Nizhny Novgorod State University, Gagarin Avenue 23, 603600 Nizhny Novgorod, Russian Federation, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K., Department of Chemistry, Moscow State University, Vorob’evy Gory, 119992, Moscow, Russian Federation, and Department of Chemistry, Brock University, Glenridge Avenue 500, St. Catharines, ON L2S 3A1, Canada
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8
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Zirngast M, Baumgartner J, Marschner C. Preparation, Structure and Reactivity of Et2N(Me3Si)2SiK. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200701143] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Cirera J, Ruiz E, Alvarez S. Stereochemistry and Spin State in Four-Coordinate Transition Metal Compounds. Inorg Chem 2008; 47:2871-89. [DOI: 10.1021/ic702276k] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jordi Cirera
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
| | - Santiago Alvarez
- Departament de Química Inorgànica and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain
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10
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Ignatov SK, Rees NH, Merkoulov AA, Dubberley SR, Razuvaev AG, Mountford P, Nikonov GI. Non-Innocent Behaviour of Imido Ligands in the Reactions of Silanes with Half-Sandwich Imido Complexes of Nb and V: A Silane/Imido Coupling Route to Compounds with Nonclassical SiH Interactions. Chemistry 2007; 14:296-310. [PMID: 17899558 DOI: 10.1002/chem.200700271] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Reactions of imido complexes [M(Cp)(=NR')(PR''3)2] (M=V, Nb) with silanes afford a plethora of products, depending on the nature of the metal, substitution at silicon and nitrogen and the steric properties of the phosphine. The main products are [M(Cp)(=NR')(PR3)(H)(SiRnCl3-n)] (M=V, Nb; R'=2,6-diisopropylphenyl (Ar), 2,6-dimethylphenyl (Ar')), [Nb(Cp)(=NR')(PR''3)(H)(SiPhR2)] (R2=MeH, H2), [Nb(Cp)(==NR')(PR''3)(Cl)(SiHRnCl2-n)] and [Nb(Cp)(eta 3-N(R)SiR2--H...)(PR''3)(Cl)]. Complexes with the smaller Ar' substituent at nitrogen react faster, as do more acidic silanes. Bulkier groups at silicon and phosphorus slow down the reaction substantially. Kinetic NMR experiments supported by DFT calculations reveal an associative mechanism going via an intermediate N-silane adduct [Nb(Cp){=N(-->SiHClR2)R'}(PR''3)2] bearing a penta-coordinate silicon centre, which then rearranges into the final products through a Si--H or Si--Cl bond activation process. DFT calculations show that this imido-silane adduct is additionally stabilized by a Si--HM agostic interaction. Si--H activation is kinetically preferred even when Si--Cl activation affords thermodynamically more stable products. The niobium complexes [NbCp(=NAr)(PMe3)(H)(SiR2Cl)] (R=Ph, Cl) are classical according to X-ray studies, but DFT calculations suggest the presence of interligand hypervalent interactions (IHI) in the model complex [Nb(Cp) (==NMe)(PMe3)(H)(SiMe2Cl)]. The extent of Si--H activation in the beta-Si--HM agostic complexes [Cp{eta 3-N(R')SiR2--H}M(PR''3)(Cl)] (R''=PMe3, PMe2Ph) primarily depends on the identity of the ligand trans to the Si--H bond. A trans phosphine leads to a stronger Si--H bond, manifested by a larger J(Si--H) coupling constant. The Si--H activation diminishes slightly when a less basic phosphine is employed, consistent with decreased back-donation from the metal.
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Affiliation(s)
- Stanislav K Ignatov
- Department of Chemistry, University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny, Novgorod 603950, Russia
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11
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Cai H, Yu X, Chen S, Qiu H, Guzei IA, Xue ZL. Amide−Silyl Ligand Exchanges and Equilibria among Group 4 Amide and Silyl Complexes. Inorg Chem 2007; 46:8071-8. [PMID: 17711274 DOI: 10.1021/ic7010293] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
M(NMe2)4 (M = Zr, 1a; Hf, 1b) and the silyl anion (SiButPh2)- (2) in Li(THF)2SiButPh2 (2-Li) were found to undergo a ligand exchange to give [M(NMe2)3(SiButPh2)2]- (M = Zr, 3a; Hf, 3b) and [M(NMe2)5]- (M = Zr, 4a; Hf, 4b) in THF. The reaction is reversible, leading to equilibria: 2 1a (or 1b) + 2 2 <--> 3a (or 3b) + 4a (or 4b). In toluene, the reaction of 1a with 2 yields [(Me2N)3Zr(SiButPh2)2]-[Zr(NMe2)5Li2(THF)4]+ (5) as an ionic pair. The silyl anion 2 selectively attacks the -N(SiMe3)2 ligand in (Me2N)3Zr-N(SiMe3)2 (6a) to give 3a and [N(SiMe3)2]- (7) in reversible reaction: 6a + 2 2 <--> 3a + 7. The following equilibria have also been observed and studied: 2M(NMe2)4 (1a; 1b) + [Si(SiMe3)3]- (8) <--> (Me2N)3M-Si(SiMe3)3 (M = Zr, 9a; Hf, 9b) + [M(NMe2)5]- (M = Zr, 4a; Hf, 4b); 6a (or 6b) + 8 <--> 9a (or 9b) + [N(SiMe3)2]- (7). The current study represents rare, direct observations of reversible amide-silyl exchanges and their equilibria. Crystal structures of 5, (Me2N)3Hf-Si(SiMe3)3 (9b), and [Hf(NMe2)4]2 (dimer of 1b), as well as the preparation of (Me2N)3M-N(SiMe3)2 (6a; 6b) are also reported.
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Affiliation(s)
- Hu Cai
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA
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12
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Qiu H, Chen S, Xue ZL. A Kinetic Study of the Silyl Substitution in Tantalum Amide Silyl Complex (Me2N)3Ta[Si(SiMe3)3]2. Inorg Chem 2007; 46:6178-81. [PMID: 17580934 DOI: 10.1021/ic0703169] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Kinetic studies have been performed for the substitution of the first silyl ligand in (Me(2)N)(3)Ta[Si(SiMe(3))(3)](2) (1) by Li(THF)(3)SiButPh(2) at 233 K (THF = tetrahydrofuran). In the presence of excess Li(THF)(3)SiButPh(2), these studies reveal that the reaction likely follows a dissociative pathway. THF, a polar solvent, is found to promote the substitution, and the order of the reaction with respect to THF is 1.7(0.3).
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Affiliation(s)
- He Qiu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, USA
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13
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Spencer MD, Shelby QD, Girolami GS. Titanium-Catalyzed Dehydrocoupling of Silanes: Direct Conversion of Primary Monosilanes to Titanium(0) Oligosilane Complexes with Agostic α-Si-H···Ti Interactions. J Am Chem Soc 2007; 129:1860-1. [PMID: 17260992 DOI: 10.1021/ja067503a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael D Spencer
- School of Chemical Sciences, The University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA
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14
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Bini F, Rosier C, Saint-Arroman RP, Neumann E, Dablemont C, de Mallmann A, Lefebvre F, Niccolai GP, Basset JM, Crocker M, Buijink JK. Surface Organometallic Chemistry of Titanium: Synthesis, Characterization, and Reactivity of (⋮Si−O)nTi(CH2C(CH3)3)4-n (n = 1, 2) Grafted on Aerosil Silica and MCM-41. Organometallics 2006. [DOI: 10.1021/om050675g] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabien Bini
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Cécile Rosier
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Romain Petroff Saint-Arroman
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Eva Neumann
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Céline Dablemont
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Aimery de Mallmann
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Frédéric Lefebvre
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Gerald P. Niccolai
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Jean-Marie Basset
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Mark Crocker
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
| | - Jan-Karel Buijink
- Laboratoire de Chimie Organométallique de Surface (UMR 9986 CNRS/ENSCPE Lyon) 43, boulevard du 11 novembre 1918, 69616 Villeurbanne Cedex, France, and Shell International Chemicals, Shell Research and Technology Center Amsterdam, P.O. Box 38000, 1030 BN Amsterdam, The Netherlands
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15
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Qiu H, Cai H, Woods JB, Wu Z, Chen T, Yu X, Xue ZL. Disilyl Complexes of Zirconium, Hafnium, and Tantalum. Their Synthesis, Characterization, and Exchanges with Silyl Anions. Organometallics 2005. [DOI: 10.1021/om050302f] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- He Qiu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Hu Cai
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Jaime B. Woods
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Tianniu Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Xianghua Yu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
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Woods JB, Yu X, Chen T, Xue ZL. A Trisilyl Zincate Containing Bidentate [(Me3Si)2Si(CH2)2Si(SiMe3)2]2- Ligands. Organometallics 2004. [DOI: 10.1021/om049277o] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jaime B. Woods
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Xianghua Yu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Tianniu Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
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17
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Yu X, Bi S, Guzei IA, Lin Z, Xue ZL. Zirconium, Hafnium, and Tantalum Amide Silyl Complexes: Their Preparation and Conversion to Metallaheterocyclic Complexes via γ-Hydrogen Abstraction by Silyl Ligands. Inorg Chem 2004; 43:7111-9. [PMID: 15500349 DOI: 10.1021/ic049023v] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New transition metal silyl amide complexes (Me(2)N)(3)Ta[N(SiMe(3))(2)](SiPh(2)Bu(t)) (1) and (Me(2)N)M[N(SiMe(3))(2)](2)(SiPh(2)Bu(t)) (M = Zr, 2a, and Hf, 2b) were found to undergo gamma-H abstraction by the silyl ligands to give metallaheterocyclic complexes (3) and (M = Zr, 4a, and Hf, 4b), respectively. The conversion of 1 to 3 follows first-order kinetics with DeltaH() = 23.6(1.6) kcal/mol and DeltaS() = 3(5) eu between 288 and 313 K. The formation of 4a from (Me(2)N)Zr[N(SiMe(3))(2)](2)Cl (5a) and Li(THF)(2)SiPh(2)Bu(t) (6) involves the formation of the intermediate 2a, followed by gamma-H abstraction. Kinetic studies of these consecutive reactions, a second-order reaction to give 2a and then a first-order gamma-H abstraction to give 4a, were conducted by an analytical method and a numerical method. At 278 K, the rate constants k(1) and k(2) for the two consecutive reactions are 2.17(0.03) x 10(-)(3) M(-)(1) s(-)(1) and 5.80(0.15) x 10(-)(5) s(-)(1) by the analytical method. The current work is a rare kinetic study of the A + B --> C --> D (+ E) consecutive reactions. Kinetic studies of the formation of a metallaheterocyclic moiety have, to our knowledge, not been reported. In addition, gamma-H abstraction by a silyl ligand to give such a metallaheterocyclic moiety is new. Theoretical investigations of the gamma-H abstraction by silyl ligands have been conducted by density functional theory calculations at the Becke3LYP (B3LYP) level, and they revealed that the formation of the metallacyclic complexes through gamma-H abstraction is entropically driven. X-ray crystal structures of (Me(2)N)(3)Ta[N(SiMe(3))(2)](SiPh(2)Bu(t)) (1), (Me(2)N)Zr[N(SiMe(3))(2)](2)Cl (5a), and (M = Zr, 4a, and Hf, 4b) are also reported.
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Affiliation(s)
- Xianghua Yu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, USA
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18
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Yu X, Morton LA, Xue ZL. Transition-Metal Silyl Complexes and Chemistry in the Reactions of Silanes with Transition-Metal Complexes. Organometallics 2004. [DOI: 10.1021/om049862p] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xianghua Yu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Laurel A. Morton
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
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19
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Turculet L, Tilley TD. Synthesis and Reactivity of d0 Alkyl, Silyl, and Hydride Complexes of Titanium and Zirconium Featuring an Aryl-Substituted Tripodal Triamido Ligand Derived from cis,cis-1,3,5-Triaminocyclohexane. Organometallics 2004. [DOI: 10.1021/om0306832] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura Turculet
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
| | - T. Don Tilley
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460
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20
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Synthesis, characterization and X-ray structures of new molybdenum bis(imide) amide and silyl complexes. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01271-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Cauzzi D, Graiff C, Marazzi M, Predieri G, Tiripicchio A. Preparation of Ti(IV), Zr(IV) and Sn(IV) metal alkyls containing the (PriO)3SiCH2 fragment. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01879-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Silyl-substituted alkylidenes: preparation of the novel complexes and mechanistic studies of their formation from reactions of alkylidenes with silanes and silyl-to-alkylidyne migration. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1169(02)00221-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Blanton JR, Diminnie JB, Chen T, Wiltz AM, Xue Z. α,ω-Bis(potassiosilyl)alkanes. Synthesis and Characterization of [K(18-crown-6)]2[(Me3Si)2Si(CH2)nSi(SiMe3)2]. Organometallics 2001. [DOI: 10.1021/om010692f] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jaime R. Blanton
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Tianniu Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Alicia M. Wiltz
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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24
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Diminnie JB, Blanton JR, Cai H, Quisenberry KT, Xue Z. Reactions of Tantalum Alkylidene Complexes with Silanes. Synthesis and Characterization of Novel Metallasilacyclodiene Complexes and Kinetic and Mechanistic Studies of Their Formation. Organometallics 2001. [DOI: 10.1021/om000476r] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jonathan B. Diminnie
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jaime R. Blanton
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Hu Cai
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Keith T. Quisenberry
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600
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25
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26
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Wu Z, Xue Z. Synthesis and Characterization of Tantalum Silyl and Disilyl Imido Complexes That Do Not Contain Anionic π-Ligands. Organometallics 2000. [DOI: 10.1021/om000503d] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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27
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Wu Z, Diminnie JB, Xue Z. d0 Bis(silyl) Complexes Free of Anionic π-Ligands: Syntheses, Structures, and a Novel Exchange between Silyl Ligands and Silyl Anions. J Am Chem Soc 1999. [DOI: 10.1021/ja984424t] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996-1600
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28
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Wu Z, Diminnie JB, Xue Z. Multi-insertion Reactions of Isocyanides with Zirconium Amido Silyl Complexes. Organometallics 1999. [DOI: 10.1021/om980979l] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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29
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Chen T, Wu Z, Li L, Sorasaenee KR, Diminnie JB, Pan H, Guzei IA, Rheingold AL, Xue Z. Direct Observation of an Equilibrium between (ButCH2)2W(⋮CBut)(SiButPh2) and (ButCH2)W(CHBut)2(SiButPh2) and an Unusual Silyl Migration. J Am Chem Soc 1998. [DOI: 10.1021/ja982571l] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tianniu Chen
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Zhongzhi Wu
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Liting Li
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Karn R. Sorasaenee
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Hongjun Pan
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Ilia A. Guzei
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Arnold L. Rheingold
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee Knoxville, Tennessee 37996 Department of Chemistry & Biochemistry The University of Delaware, Newark, Delaware 19716
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30
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Wu Z, Diminnie JB, Xue Z. Synthesis and Characterization of Group 4 Amido Silyl Complexes Free of Anionic π-Ligands. Inorg Chem 1998. [DOI: 10.1021/ic980821t] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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31
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Wu Z, McAlexander LH, Diminnie JB, Xue Z. Reactions of (Me3ECH2)3ZrSi(SiMe3)3 (E = C, Si) with 2,6-Dimethylphenyl Isocyanide. Preferential Isocyanide Insertion into Zr−Silyl Bonds. Organometallics 1998. [DOI: 10.1021/om980485o] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Lenore H. McAlexander
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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32
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Liu X, Li L, Diminnie JB, Yap GPA, Rheingold AL, Xue Z. Reactivities of a Bis(alkylidene) Complex. Synthesis of a Silyl Bis(alkylidyne) Complex and a Reaction Cycle among Symmetric Bis(alkylidyne), Bis(alkylidene), and Nonsymmetric Bis(alkylidyne) Compounds. Organometallics 1998. [DOI: 10.1021/om980652k] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaozhan Liu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
| | - Liting Li
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
| | - Glenn P. A. Yap
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
| | - Arnold L. Rheingold
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600, and Department of Chemistry & Biochemistry, The University of Delaware, Newark, Delaware 19716-2522
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33
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Wu Z, Diminnie JB, Xue Z. Synthesis and X-ray Crystal Structure of a Chlorobis(trimethylsiloxy)zirconium Silyl Derivative, (Me3SiO)2Zr(SiPh2But)Cl·2THF. Organometallics 1998. [DOI: 10.1021/om980148f] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996
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34
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Wu Z, Diminnie JB, Xue Z. Synthesis and Characterization of Unusual Dichloro(amido)-Bridged Zirconium Complexes. X-ray Crystal Structures of (Me2N)3Zr(μ-Cl)2(μ-NMe2)Zr(NMe2)2(THF) and Cl(Me2N)2Zr(μ-Cl)2(μ-NMe2)Zr(NMe2)2(THF). Inorg Chem 1998. [DOI: 10.1021/ic980046h] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhongzhi Wu
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Jonathan B. Diminnie
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
| | - Ziling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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35
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McAlexander LH, Li L, Yang Y, Pollitte JL, Xue Z. Syntheses of Titanium and Zirconium Chlorotrialkyl Complexes and Crystal Structure of Chlorotrineopentylzirconium Containing Unusual Linear Symmetric Metal-Chloride Polymeric Chains. Inorg Chem 1998; 37:1423-1426. [PMID: 11670357 DOI: 10.1021/ic971407g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lenore H. McAlexander
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996-1600
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36
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Casty GL, Tilley TD, Yap GPA, Rheingold AL. Synthesis and Reactivity of d0 Bis(imido) Silyl and Germyl Complexes of Molybdenum and Tungsten. Organometallics 1997. [DOI: 10.1021/om970527t] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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