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Petrov PA, Smolentsev AI, Bogomyakov AS, Konchenko SN. Novel vanadium complexes supported by a bulky tris(pyrazolyl)borate ligand. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.03.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Brown A, Saber M, Van den Heuvel W, Schulte K, Soncini A, Dunbar KR. Titanium(III) Member of the Family of Trigonal Building Blocks with Scorpionate and Cyanide Ligands. Inorg Chem 2017; 56:1031-1035. [DOI: 10.1021/acs.inorgchem.6b02643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew Brown
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Mohamed Saber
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | | | - Kelsey Schulte
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Alessandro Soncini
- School of
Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kim R. Dunbar
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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3
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Caballo J, Greño M, Mena M, Pérez-Redondo A, Yélamos C. Homo and heteropolymetallic Group 4 molecular nitrides. Dalton Trans 2015; 44:18145-57. [PMID: 26419656 DOI: 10.1039/c5dt02836a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of [{Ti(η(5)-C5Me5)(μ-NH)}3(μ3-N)] (1) with zirconium or hafnium tetrachloride adducts [MCl4(thf)2] affords complexes [Cl3M{(μ3-N)(μ3-NH)2Ti3(η(5)-C5Me5)3(μ3-N)}] (M = Zr (2), Hf (3)). Titanium chloride complexes [Cl2Ti{(μ3-N)2(μ3-NH)Ti3(η(5)-C5Me5)3(μ3-N)}] (4) and [(Me2NH)ClTi{(μ3-N)3Ti3(η(5)-C5Me5)3(μ3-N)}] (5) are obtained by reaction of 1 with [TiCl4-x(NMe2)x] (x = 2, 3). The dimethylamine ligand in 5 is displaced by pyridine to give the analogue complex [(py)2ClTi{(μ3-N)3Ti3(η(5)-C5Me5)3(μ3-N)}] (6). Treatment of the titanium chloride complexes 4 and 5 with sodium cyclopentadienide or lithium bis(trimethylsilyl)amide reagents leads to the cube-type nitrido derivatives [RTi{(μ3-N)3Ti3(η(5)-C5Me5)3(μ3-N)}] (R = η(5)-C5H5 (7), N(SiMe3)2 (8)). The reaction of the zirconium trichloride complex 2 with [Tl(C5H5)] yields exclusively the dichloride-monocyclopentadienyl derivative [(η(5)-C5H5)Cl2Zr{(μ3-N)(μ3-NH)2Ti3(η(5)-C5Me5)3(μ3-N)}] (9). However, the treatment of 2 with excess [Na(C5H5)] causes further chloride replacement in 9 and subsequent cyclopentadiene elimination to give [(η(5)-C5H5)Zr{(μ3-N)3Ti3(η(5)-C5Me5)3(μ3-N)}] (10) via intermediates [(η(5)-C5H5)2ClZr{(μ3-N)Ti3(η(5)-C5Me5)3(μ-NH)2(μ3-N)}] (11) and [(η(5)-C5H5)ClZr{(μ3-N)2(μ3-NH)Ti3(η(5)-C5Me5)3(μ3-N)}] (12). Treatment of 2 or 9 with [Mg(C5H5)2] leads to the magnesium derivative [(η(5)-C5H5)Mg(μ-Cl)2(η(5)-C5H5)Zr{(μ4-N)(μ3-N)(μ3-NH)Ti3(η(5)-C5Me5)3(μ3-N)}] (13), which can be visualized as a result of the incorporation of one [Mg(η(5)-C5H5)Cl] moiety to complex 12. In contrast to the metathesis process with [M(C5H5)x] derivatives and subsequent C5H6 eliminations, the reaction of 2 with potassium pentamethylcyclopentadienide in toluene produces the paramagnetic derivative [K(μ-Cl)3Zr{(μ3-N)(μ3-NH)2Ti3(η(5)-C5Me5)3(μ3-N)}] (14) and C10Me10. Complex 14 reacts with one equivalent of 18-crown-6 or cryptand-222 to give the molecular complex [(18-crown-6)K(μ-Cl)3Zr{(μ3-N)(μ3-NH)2Ti3(η(5)-C5Me5)3(μ3-N)}] (15) or the ion pair [K(crypt-222)][Cl3Zr{(μ3-N)(μ3-NH)2Ti3(η(5)-C5Me5)3(μ3-N)}] (16). The X-ray crystal structures of 2, 8, 13 and 15 have been determined.
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Affiliation(s)
- Jorge Caballo
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28871 Alcalá de Henares-Madrid, Spain.
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4
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Schädle D, Meermann-Zimmermann M, Schädle C, Maichle-Mössmer C, Anwander R. Rare-Earth Metal Complexes with Terminal Imido Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500045] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Galájov M, Garcı́a C, Gómez M, Gómez-Sal P, Temprado M. Synthesis and DFT, Multinuclear Magnetic Resonance, and X-ray Structural Studies of Iminoacyl Imido Hydridotris(3,5-dimethylpyrazolyl)borate Niobium and Tantalum(V) Complexes. Organometallics 2014. [DOI: 10.1021/om5002028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Miguel Galájov
- Centro de Espectroscopia de RMN, ‡Departamento de Quı́mica Orgánica
y Quı́mica Inorgánica and §Departamento de Quı́mica
Analítica, Quı́mica Física e Ingeniería
Quı́mica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Carlos Garcı́a
- Centro de Espectroscopia de RMN, ‡Departamento de Quı́mica Orgánica
y Quı́mica Inorgánica and §Departamento de Quı́mica
Analítica, Quı́mica Física e Ingeniería
Quı́mica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Manuel Gómez
- Centro de Espectroscopia de RMN, ‡Departamento de Quı́mica Orgánica
y Quı́mica Inorgánica and §Departamento de Quı́mica
Analítica, Quı́mica Física e Ingeniería
Quı́mica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Pilar Gómez-Sal
- Centro de Espectroscopia de RMN, ‡Departamento de Quı́mica Orgánica
y Quı́mica Inorgánica and §Departamento de Quı́mica
Analítica, Quı́mica Física e Ingeniería
Quı́mica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Manuel Temprado
- Centro de Espectroscopia de RMN, ‡Departamento de Quı́mica Orgánica
y Quı́mica Inorgánica and §Departamento de Quı́mica
Analítica, Quı́mica Física e Ingeniería
Quı́mica, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
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6
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Galájov M, García C, Gómez M, Gómez-Sal P. Alkyl chlorido hydridotris(3,5-dimethylpyrazolyl)borate imido niobium and tantalum(V) complexes: synthesis, conformational states of alkyl groups in solid and solution, X-ray diffraction and multinuclear magnetic resonance spectroscopy studies. Dalton Trans 2014; 43:5747-58. [PMID: 24573068 DOI: 10.1039/c3dt53353k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The alkylation of the starting pseudooctahedral dichlorido imido hydridotris(3,5-dimethylpyrazolyl)borate niobium and tantalum(v) compounds [MTp*Cl2(NtBu)] (M = Nb,Ta; Tp* = BH(3,5-Me2C3HN2)3) with MgClR in different conditions led to new alkyl chlorido imido derivatives [MTp*ClR(NtBu)] (M = Nb/Ta, R = CH2CH31a/1b, CH2Ph 2a/2b, CH2tBu 3a/3b, CH2SiMe34a/4b, CH2CMe2Ph 5a/5b), whereas the dimethyl derivatives [MTp*Me2(NtBu)] (M = Nb 6a, Ta 6b) could be isolated as unitary species when the reaction was carried out using 2 equivalents of the magnesium reagent MgClMe. However, the chlorido methyl [MTp*ClMe(NtBu)] (M = Nb 7a, Ta 7b) complexes were obtained by heating at 50 °C the dichlorido and dimethyl imido complexes mixtures in a 1 : 1 ratio. All of the complexes were studied by multinuclear magnetic resonance spectroscopy and the molecular structures of 1b, 2a/b, 3a/b, 4a and 5a/b were determined by X-ray diffraction methods. In the solid state the complexes 1b, 4a and 5a exhibit only a gauche-anti conformation and the complexes 2a/b, 3a/b and 5b exhibit only a gauche-syn conformation of the alkyl substituents, whereas both conformational states, which do not show mutual exchange in the NMR time scale, were observed for 3a/b in a benzene-d6 solution. The (15)N chemical shifts of the complexes 1-7 are discussed.
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Affiliation(s)
- Miguel Galájov
- Centro de Espectroscopia de RMN, Universidad de Alcalá, Campus Universitario, E-28871 Alcalá de Henares, Spain
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7
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Elorriaga D, Galajov M, Garcı́a C, Gómez M, Gómez-Sal P. Hydridotris(3,5-dimethylpyrazolyl)borate Dimethylamido Imido Niobium and Tantalum Complexes: Synthesis, Reactivity, Fluxional Behavior, and C–H Activation of the NMe2 Function. Organometallics 2012. [DOI: 10.1021/om300437e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Elorriaga
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Miguel Galajov
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Carlos Garcı́a
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Manuel Gómez
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
| | - Pilar Gómez-Sal
- Departamento de Quı́mica Inorgánica and ‡Centro
de Espectroscopia de RMN, Universidad de Alcalá,
Campus Universitario, E-28871 Alcalá de Henares, Spain
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8
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Paolucci G, Bortoluzzi M, Sperni L. Synthesis and characterization of a homoleptic titanium dihydrobis(pyrazol-1-yl)borate complex. INORG CHEM COMMUN 2009. [DOI: 10.1016/j.inoche.2009.08.004] [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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9
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Sarju J, Arbour J, Sayer J, Rohrmoser B, Scherer W, Wagner G. Synthesis and characterisation of mixed ligand Pt(ii) and Pt(iv) oxadiazoline complexes. Dalton Trans 2008:5302-12. [DOI: 10.1039/b807410k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Otero A, Fernández-Baeza J, Antiñolo A, Tejeda J, Lara-Sánchez A, Sánchez-Barba LF, Sánchez-Molina M, Rodríguez AM, Bo C, Urbano-Cuadrado M. Expanding Heteroscorpionates. Facile Synthesis of New Hybrid Scorpionate/Cyclopentadienyl Ligands and Their Lithium and Group 4 Metal Compounds: A Combined Experimental and Density Functional Theory Study. Organometallics 2007. [DOI: 10.1021/om7003942] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Juan Fernández-Baeza
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Antonio Antiñolo
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Juan Tejeda
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Margarita Sánchez-Molina
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Carles Bo
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
| | - Manuel Urbano-Cuadrado
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain, Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Mostoles-28933-Madrid, Spain, Institute of Chemical Research of Catalonia (ICIQ), Avenida Països Catalans 16, 43007-Tarragona, Spain, and Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Campus Sescelades, Macelli Domingo s/n, 43007 Tarragona, Spain
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11
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Bigmore HR, Zuideveld MA, Kowalczyk RM, Cowley AR, Kranenburg M, McInnes EJL, Mountford P. Synthesis, structures, and olefin polymerization capability of vanadium(4+) imido compounds with fac-N3 donor ligands. Inorg Chem 2007; 45:6411-23. [PMID: 16878953 DOI: 10.1021/ic060454i] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
One-pot reactions of V(NMe2)4 with a range of primary alkyl- and arylamines RNH2 and Me3SiCl afforded the corresponding five-coordinate vanadium(4+) imido compounds V(NR)Cl2(NHMe2)2 [R = 2,6-C6H3(i)Pr2 (1a, previously reported), 2-C6H4(t)Bu (1b), 2-C6H4CF3 (1c), (t)Bu (1d), Ad (Ad = adamantyl, 1e)]. The crystal structures of 1b (two diamorphic forms) and 1c featured N-H...Cl hydrogen-bonded chains. Reaction of 1a-e with the neutral face-capping, N3 donor ligands TACN (TACN = 1,4,7-trimethyltriazacyclononane) or TPM [TPM = tris(3,5-dimethylpyrazolyl)methane] gave the corresponding six-coordinate complexes V(NR)(TACN)Cl2 (2a-e) and V(NR)(TPM)Cl2 (3a-e). The X-ray structures of 2b, 2c, 2d, 3b, 3c, and 3e were determined. When activated with methylaluminoxane, certain of the complexes V(NR)(TPM)Cl2 (3) formed moderately active ethylene polymerization catalysts, whereas none of the compounds V(NR)(TACN)Cl2 (2) were active.
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Affiliation(s)
- Helen R Bigmore
- Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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12
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Li D, Ruschman C, Parkin S, Clérac R, Holmes SM. Syntheses, structures, and magnetic characterization of dicyanometalate(ii) building blocks: [NEt4][(Tp*)MII(CN)2] [MII= Cr, Co, Ni; Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate]. Chem Commun (Camb) 2006:4036-8. [PMID: 17003891 DOI: 10.1039/b608297a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses and structures of three dicyanometalate(II) complexes, [NEt(4)][(Tp*)M(II)(CN)(2)].nMeCN.(1/2)Et(2)O (M(II) = Cr, 1, n = (1/2); Co, 2, n = 1; Ni, 3, n = 1) are described; magnetic studies indicate that 3 is diamagnetic while 1 and 2 are paramagnetic high- and low-spin S = 2 and (1/2) complexes, respectively.
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Affiliation(s)
- Dongfeng Li
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA
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13
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Oulié, P, Bréfuel N, Vendier L, Duhayon C, Etienne M. A New Way to Scorpionate Niobium Complexes: Terminal Alkyne, Imido, and Oxo Complexes and the Rearrangement of α-Agostic Ethyl Complexes. Organometallics 2005. [DOI: 10.1021/om050423f] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pascal Oulié,
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 Route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Nicolas Bréfuel
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 Route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 Route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Carine Duhayon
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 Route de Narbonne, 31077 Toulouse Cedex 04, France
| | - Michel Etienne
- Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 Route de Narbonne, 31077 Toulouse Cedex 04, France
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14
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Marchetti F, Pellei M, Pettinari C, Pettinari R, Rivarola E, Santini C, Skelton BW, White AH. Tin(IV) and organotin(IV) derivatives of bis(pyrazolyl)acetate: Synthesis, spectroscopic characterization and behaviour in solution. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.01.067] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Otero A, Fernández-Baeza J, Antiñolo A, Tejeda J, Lara-Sánchez A, Sánchez-Barba L, Rodríguez AM, Maestro MA. An Unprecedented Hybrid Scorpionate/Cyclopentadienyl Ligand. J Am Chem Soc 2004; 126:1330-1. [PMID: 14759177 DOI: 10.1021/ja0391558] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for the preparation of the first hybrid scorpionate/cyclopentadienyllithium compound as a new class of tridentate ligand is described. This compound is an excellent reagent for the introduction of this ligand into transition metal complexes.
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Affiliation(s)
- Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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17
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Cai H, Lam WH, Yu X, Liu X, Wu ZZ, Chen T, Lin Z, Chen XT, You XZ, Xue Z. Synthesis, characterization, and theoretical studies of group 4 amido hydrotris(pyrazolyl)borate complexes. Inorg Chem 2003; 42:3008-15. [PMID: 12716195 DOI: 10.1021/ic026063v] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Titanium and zirconium amido complexes containing a hydrotris(pyrazolyl)borate (Tp) or hydrotris(3,5-dimethylpyrazolyl)borate (Tp*) ligand TpM(NMe(2))(3) (M = Ti, 1; M = Zr, 2) and Tp*M(NMe(2))(3) (M = Ti, 3; M = Zr, 4) were prepared by the reactions of M(NMe(2))(3)Cl (M = Ti, Zr) with sodium hydridotris(pyrazol-1-yl)borate and potassium hydridotris(3,5-dimethylpyrazol-1-yl)borate, respectively. The structures of 1, 2, and 4.CH(2)Cl(2) were determined by X-ray diffraction and show octahedral coordination geometry around the metal centers. Density functional theory calculations at the B3PW91 level were performed to understand the orientations and the rotational behavior of amido ligands in these metal complexes.
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Affiliation(s)
- Hu Cai
- Department of Chemistry, The University of Tennessee, Knoxville, TN 37996, USA
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Gust K, Knox J, Heeg M, Schlegel H, Winter C. Synthesis, Structure, and Molecular Orbital Calculations of (Pyrazolato)vanadium(III) Complexes − Understanding η2-Pyrazolato Ligand Coordination on d2 Metal Centers. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200209)2002:9<2327::aid-ejic2327>3.0.co;2-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wang ZH, Tang LF, Jia WL, Wang JT, Wang HG. Synthesis and characterization of bidentate organotin Lewis acid derivatives containing bis(pyrazol-1-yl)alkanes: X-ray crystal structure of PhBr2(L)SnCH2SnPhBr2 (L=bis(4-chloropyrazol-1-yl)methane). Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)00863-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rüther T, Cavell KJ, Braussaud NC, Skelton BW, White AH. Synthesis, characterisation and catalytic behaviour of a novel class of chromium(iii) and vanadium(iii) complexes containing bi- and tri-dentate imidazole chelating ligands: a comparative study. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b207248c] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sugawara KI, Hikichi S, Akita M. Di- and tri-valent chlorochromium complexes bearing hydrotris(3,5-diisopropylpyrazolyl)borato ligand (TpiPr2), TpiPr2CrCln(L) (n = 1, 2) and [TpiPr2Cr(μ-Cl)]2: flexible coordination behavior of the TpiPr2 ligand and reduction features of Cr(ii) species. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b207326a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sugawara KI, Hikichi S, Akita M. Dichloromethane Activation by Chlorochromium(II) Complexes with TpiPr2: Generation of an Electrophilic Cr–Methylene Species without the Action of an External Cl-Abstraction Reagent. CHEM LETT 2001. [DOI: 10.1246/cl.2001.1094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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