1
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Bekiş DF, Thomas-Hargreaves LR, Berthold C, Ivlev SI, Buchner MR. Structure and spectroscopic properties of etherates of the beryllium halides. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2023-0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Abstract
The synthesis of beryllium halide etherates and the solution behavior in benzene, dichloromethane, and chloroform was studied by NMR, IR, and Raman spectroscopy. Mononuclear units of [BeX
2(L)2] (X = Cl, Br, I; L = Et2O, thf) were identified as the favorably formed species in solution. Treatment of the mononuclear diethyl ether beryllium halide adduct with one equivalent beryllium halide formed the dinuclear compounds [BeX
2(OEt2)]2 (X = Cl, Br, I). The solid-state structures of [BeCl2(thf)2] and [BeBr2(thf)2] have been determined by single crystal X-ray diffraction analysis. [BeI2(thf)2] decomposed in all solvents. In CD2Cl2 the salt [Be(thf)4]I2 was formed, whereas in C6D6 and CDCl3, BeI2 precipitated and [BeI(thf)3]+, [Be(thf)4]2+ together with the thf ring-opening product [Be(μ
2-O(CH2)4I)I(thf)]2 were observed in solution.
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Affiliation(s)
- Deniz F. Bekiş
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Straße 4, 35032 Marburg , Germany
| | | | - Chantsalmaa Berthold
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Straße 4, 35032 Marburg , Germany
| | - Sergei I. Ivlev
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Straße 4, 35032 Marburg , Germany
| | - Magnus R. Buchner
- Fachbereich Chemie , Philipps-Universität Marburg , Hans-Meerwein-Straße 4, 35032 Marburg , Germany
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2
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Wagner HE, Hohnstein S, Schußmann MG, Steppe LA, Breher F. Phosphine-functionalised tris(pyrazolyl)methane ligands and their mono- and heterobimetallic complexes. Dalton Trans 2019; 48:15397-15407. [PMID: 31180415 DOI: 10.1039/c9dt02057h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, characterisation and reactivity of new phosphine-functionalised tris(pyrazolyl)methane ligands (TpmPR2, 2a-c, with R = Ph, nBu, iPr) are presented. The reaction of 2a-c with [Rh(CO)2Cl]2 furnished N,P-heterochelate carbonyl complexes (3a-c), which were used to quantify the donor abilities of the ligands via IR spectroscopy. The coordination flexibility was demonstrated by treating representative members of this new ligand class with [CpRu(acn)3][PF6] (acn = acetonitrile), [(tht)AuCl] (tht = tetrahydrothiophene) and [Pd(allyl)Cl]2 providing either a N,N,P-heteroscorpionate complex (4) or the P-coordinated complexes (5,6) without any involvement of the pyrazolyl entities. With 2a and [Pd(cod)Cl2], another P,N-heterochelate complex (7) was obtained, which served as a precursor for a heterobimetallic complex containing palladium and copper (8). Detailed NMR spectroscopic and X-ray crystallographic investigations have been performed on all new complexes.
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Affiliation(s)
- Hanna E Wagner
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Silvia Hohnstein
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Max G Schußmann
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Lukas A Steppe
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Frank Breher
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
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3
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Jayakumar S, Mahendiran D, Arumai Selvan D, Kalilur Rahiman A. Bis(imidazol-1-yl)methane-based heteroscorpionate metal(II) complexes: Theoretical, antimicrobial, antioxidant, in vitro cytotoxicity and c-Met tyrosine kinase studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Jayakumar S, Mahendiran D, Rahiman AK. Theoretical, antimicrobial, antioxidant, in vitro cytotoxicity, and cyclin-dependent kinase 2 inhibitor studies of metal(II) complexes with bis(imidazol-1-yl)methane-based heteroscorpionate ligands. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1620217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- S. Jayakumar
- Post-Graduate and Research Department of Chemistry, The New College (Autonomous), Chennai, India
- Department of Chemistry, Misrimal Navajee Munoth Jain Engineering College, Chennai, India
| | - D. Mahendiran
- Post-Graduate and Research Department of Chemistry, The New College (Autonomous), Chennai, India
- Molecular Pharmacology and Pathology Program, Department of Pathology, Bosch Institute, University of Sydney, Sydney, Australia
| | - A. Kalilur Rahiman
- Post-Graduate and Research Department of Chemistry, The New College (Autonomous), Chennai, India
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5
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Luna Barros M, Cushion MG, Schwarz AD, Turner ZR, Mountford P. Magnesium, calcium and zinc [N 2N'] heteroscorpionate complexes. Dalton Trans 2019; 48:4124-4138. [PMID: 30638242 DOI: 10.1039/c8dt04985h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of sterically demanding N2N' heteroscorpionate pro-ligands (HC(tBu2pz)2SiMe2N(H)R (R = iPr, tBu, Ph, Xyl)) has been prepared via a straightforward modular synthetic route. An extensive study into the synthesis and characterisation of lithium, magnesium, calcium and zinc complexes supported by both 3,5-tBu and 3,5-Me substituted N2N' ligand families has been conducted. Attempted deprotonation of the pro-ligands with nBuLi afforded the corresponding lithium salts Li{HC(tBu2pz)2SiMe2NR} (R = iPr (1), tBu (2), Ph (3) and Xyl (4)) but air- and thermal-sensitivity limited the yields of these potentially useful precursors; only the sterically encumbered ligand system allowed clean reactivity. Magnesium methyl complexes Mg{HC(tBu2pz)2SiMe2NR}Me (R = iPr (5) and R = Ph (6)) were prepared using an excess of the Grignard reagent MeMgCl. Magnesium butyl complexes were synthesised in good yields using the dialkyl precursor MgnBu2 to afford Mg{HC(R'2pz)2SiMe2NR}nBu (R' = Me; R = iPr (7), tBu (8), Ad (9), Ph (10). R' = tBu; R = iPr (11), Ph (12)). Protonolylsis reactions were used to synthesise magnesium and calcium amide complexes Mg{HC(R'2pz)2SiMe2NR}{N(SiHMe2)2} (R' = Me; R = iPr (13), tBu (14), Ph (15). R' = tBu; R = Ph (16)) or Mg{HC(R'2pz)2SiMe2NR}{N(SiMe3)2} (R' = Me; R = iPr (17), tBu (18), Ph (19). R' = tBu; R = Ph (20)), and Ca{HC(R'2pz)2SiMe2NR}{N(SiMe2)2} (L) (R' = Me; L = thf; R = iPr (21), tBu (22), Ph (23). R' = tBu; L = none; R = Ph (24). Zinc methyl complexes Zn{HC(R'2pz)2SiMe2NR}Me (R' = Me; R = iPr (25), tBu (26), Ph (27). R' = tBu; R = Ph (28)) were prepared by reaction of the N2N' heteroscorpionate pro-ligands with ZnMe2. In preliminary studies, magnesium amide complexes 16 and 20 were evaluated as initiators for the ring-opening polymerisation (ROP) of ε-caprolactone (ε-CL) and rac-lactide (rac-LA). Although the overall polymerisation control was poor, 16 and 20 were found to be active initiators.
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Affiliation(s)
- Mariana Luna Barros
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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6
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Alkorta I, Claramunt RM, Díez-Barra E, Elguero J, de la Hoz A, López C. The organic chemistry of poly(1 H -pyrazol-1-yl)methanes. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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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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8
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Krieck S, Koch A, Hinze K, Müller C, Lange J, Görls H, Westerhausen M. s-Block Metal Complexes with Bis- and Tris(pyrazolyl)methane and -methanide Ligands. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501263] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sven Krieck
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Alexander Koch
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Kay Hinze
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Christoph Müller
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Juliane Lange
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
| | - Matthias Westerhausen
- Institute of Inorganic and Analytical Chemistry; Friedrich Schiller University Jena; Humboldtstrasse 8 07743 Jena Germany
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9
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Ortiz PD, Ortiz M, Suardíaz R, Fragoso A, Ortiz PJ. Experimental and theoretical characterization of a novel bis-pyrazoylmethane ligand. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2015; 53:539-543. [PMID: 25916751 DOI: 10.1002/mrc.4242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 02/26/2015] [Accepted: 03/07/2015] [Indexed: 06/04/2023]
Affiliation(s)
- Pedro D Ortiz
- Departamento de Química Inorgánica, Facultad de Química, Universidad de La Habana, La Habana, Cuba
| | - Mayreli Ortiz
- Nanobiotechnology E Bioanalysis Group, Departament d'Enginyeria Química, Universitat Rovira i Virgili, Tarragona, Spain
| | | | - Alex Fragoso
- Nanobiotechnology E Bioanalysis Group, Departament d'Enginyeria Química, Universitat Rovira i Virgili, Tarragona, Spain
| | - Pedro J Ortiz
- Departamento de Química-Física, Facultad de Química, Universidad de La Habana, La Habana, Cuba
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10
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Roa AE, Campos J, Paneque M, Salazar V, Otero A, Lara-Sánchez A, Rodríguez AM, López-Solera I, Gómez MV. Synthesis of new heteroscorpionate iridium(i) and iridium(iii) complexes. Dalton Trans 2015; 44:6987-98. [DOI: 10.1039/c5dt00482a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The reactivity of different heteroscorpionate ligands based on bis(pyrazol-1-yl)methane, with different iridium-(i) and -(iii) precursors is reported.
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Affiliation(s)
- A. E. Roa
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092-Sevilla
| | - J. Campos
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092-Sevilla
| | - M. Paneque
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092-Sevilla
| | - V. Salazar
- Centro de Investigaciones Químicas
- Universidad Autónoma del Estado de Hidalgo
- Pachuca
- México
| | - A. Otero
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real
| | - A. Lara-Sánchez
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real
| | - A. M. Rodríguez
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real
| | - I. López-Solera
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real
| | - M. V. Gómez
- Departamento de Química Inorgánica
- Orgánica y Bioquímica
- and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Universidad de Castilla-La Mancha
- 13071-Ciudad Real
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11
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Gardinier JR, Hewage JS, Lindeman SV. Isomer Dependence in the Assembly and Lability of Silver(I) Trifluoromethanesulfonate Complexes of the Heteroditopic Ligands, 2-, 3-, and 4-[Di(1H-pyrazolyl)methyl]phenyl(di-p-tolyl)phosphine. Inorg Chem 2014; 53:12108-21. [DOI: 10.1021/ic5019357] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- James R. Gardinier
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881, United States
| | - Jeewantha S. Hewage
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881, United States
| | - Sergey V. Lindeman
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881, United States
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12
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Knight SE, Bezpalko MW, Foxman BM, Thomas CM. Coordination of N -heterocyclic phosphine- and phosphenium-containing pincer ligands to copper(I): Evidence for reactive electrophilic metal–phosphenium intermediates. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Sánchez‐Barba LF, Garcés A, Fernández‐Baeza J, Otero A, Honrado M, Lara‐Sánchez A, Rodríguez AM, López‐Solera I. Unprecedented Formation of the First Alkaline‐Earth‐Metal Complex Bearing an Asymmetrical
gem‐
Dithiolato Heteroscorpionato Ligand. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301544] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Luis F. Sánchez‐Barba
- Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain, http://www.urjc.es/
| | - Andrés Garcés
- Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain, http://www.urjc.es/
| | - Juan Fernández‐Baeza
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
| | - Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
| | - Manuel Honrado
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
| | - Agustín Lara‐Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
| | - Isabel López‐Solera
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla‐La Mancha, Campus Universitario, 13071 Ciudad Real, Spain, http://www.uclm.es/
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14
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Gajewska MJ, Ching WM, Wen YS, Hung CH. Synthesis, structure, and catecholase activity of bispyrazolylacetate copper(ii) complexes. Dalton Trans 2014; 43:14726-36. [DOI: 10.1039/c4dt01467g] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heteroleptic copper(ii) complexes containing bis(3,5-di-t-butylpyrazol-1-yl)acetate and nitrogen heterocyclic co-ligands identified the influence of co-ligands on the conformation and catecholase-like catalytic activity.
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Affiliation(s)
| | - Wei-Min Ching
- Institute of Chemistry
- Academia Sinica
- Taipei 105, Taiwan
| | - Yuh-Sheng Wen
- Institute of Chemistry
- Academia Sinica
- Taipei 105, Taiwan
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15
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Tampier S, Burzlaff N. Heteroscorpionate complexes based on bis(3,5-di-tert-butylpyrazol-1-yl)dithioacetate. Acta Crystallogr C 2013; 69:981-5. [PMID: 24005504 DOI: 10.1107/s0108270113021148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 07/29/2013] [Indexed: 11/10/2022] Open
Abstract
The heteroscorpionate ligand bis(3,5-di-tert-butylpyrazol-1-yl)dithioacetate (bdtbpzdta) has been synthesized by reacting bis(3,5-di-tert-butylpyrazol-1-yl)methane with n-BuLi and CS2. The ligand was isolated as [bis(3,5-di-tert-butylpyrazol-1-yl)dithioacetato](tetrahydrofuran)lithium(I) tetrahydrofuran monosolvate, [Li(C24H39N4S2)(C4H8O)]·C4H8O or [Li(bdtbpzdta)(THF)]·THF, in which the lithium cation is bound by the κ(3)N,N',S-coordinated heteroscorpionate ligand. A similar coordination mode is observed for a zinc chloride complex bearing the bdtbpzdta ligand, namely [bis(3,5-di-tert-butylpyrazol-1-yl)dithioacetato]chloridozinc(II), [Zn(C24H39N4S2)Cl] or [Zn(bdtbpzdta)Cl], which exhibits κ(3)N,N',S-coordination and resembles the active site of zinc-containing peptide deformylases (PDFs).
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Affiliation(s)
- Stefan Tampier
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
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16
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Otero A, Fernández-Baeza J, Lara-Sánchez A, Sánchez-Barba LF. Metal complexes with heteroscorpionate ligands based on the bis(pyrazol-1-yl)methane moiety: Catalytic chemistry. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.027] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Arrowsmith M, Crimmin MR, Hill MS, Kociok-Köhn G. Beryllium derivatives of a phenyl-substituted β-diketiminate: a well-defined ring opening reaction of tetrahydrofuran. Dalton Trans 2013; 42:9720-6. [PMID: 23685744 DOI: 10.1039/c3dt51021b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Merle Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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18
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Bortoluzzi M, Paolucci G, Fregona D, Via LD, Enrichi F. Group 3 and lanthanide triflate-complexes with [N,N,O]-donor ligands: synthesis, characterization, and cytotoxic activity. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.728591] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Marco Bortoluzzi
- a Dipartimento di Scienze Molecolari e Nanosistemi , Università Ca’ Foscari Venezia , Dorsoduro 2137, 30121 Venezia , Italy
| | - Gino Paolucci
- a Dipartimento di Scienze Molecolari e Nanosistemi , Università Ca’ Foscari Venezia , Dorsoduro 2137, 30121 Venezia , Italy
| | - Dolores Fregona
- b Dipartimento di Scienze Chimiche , via Marzolo 1, 35131 Padova , Italy
| | - Lisa Dalla Via
- c Dipartimento di Scienze del Farmaco , via Marzolo 5, 35131 Padova , Italy
| | - Francesco Enrichi
- d CIVEN, Coordinamento Interuniversitario Veneto per le Nanotecnologie , via delle Industrie 5, 30175 Marghera (Venezia) , Italy
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19
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Liu XL, Zhang XY, Song HB, Tang LF. Reactivity of Bis(3,5-dimethylpyrazol-1-yl)methyllithium with S or CS2, Followed by Reaction with Fe3(CO)12 and Ar3SnCl or RX: Unexpected Formation of (3,5-Dimethylpyrazol-1-yl)dithioformate Derivatives. Organometallics 2012. [DOI: 10.1021/om300448a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xia-Li Liu
- Department of Chemistry, State Key
Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Xiao-Yan Zhang
- Department of Chemistry, State Key
Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hai-Bin Song
- Department of Chemistry, State Key
Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Liang-Fu Tang
- Department of Chemistry, State Key
Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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Cabeza JA, García-Álvarez P, Guadalupe Hernández-Cruz M. Reactions of CS2 and C(S)NPh Adducts of N-Heterocyclic Carbenes with [Ru3(CO)12]: Remarkable Reactivity of These Betaines Involving One or Two C-S Bond Activation Processes. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200245] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Jones MW, Baldwin JE, Cowley AR, Dilworth JR, Karpov A, Smiljanic N, Thompson AL, Adlington RM. Synthesis of new bulky bis(pyrazolyl)methane carboxylate (heteroscorpionate) ligands and their complexes with iron, manganese and nickel. Dalton Trans 2012; 41:14068-86. [DOI: 10.1039/c2dt31859h] [Citation(s) in RCA: 27] [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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22
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Examining the impact of steric and electronic variation in N2S scorpionate ligands on the properties of zinc(II) and cadmium(II) complexes. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.07.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Noor A, Kretschmer WP, Glatz G, Kempe R. Highly Active Titanium-Based Olefin Polymerization Catalysts Bearing Bulky Aminopyridinato Ligands. Inorg Chem 2011; 50:4598-606. [PMID: 21486015 DOI: 10.1021/ic200318h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Awal Noor
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Winfried P. Kretschmer
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany
- Center for Catalytic Olefin Polymerization, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
| | - Germund Glatz
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany
| | - Rhett Kempe
- Lehrstuhl für Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany
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Otero A, Lara-Sánchez A, Fernández-Baeza J, Alonso-Moreno C, Castro-Osma JA, Márquez-Segovia I, Sánchez-Barba LF, Rodríguez AM, Garcia-Martinez JC. Neutral and Cationic Aluminum Complexes Supported by Acetamidate and Thioacetamidate Heteroscorpionate Ligands as Initiators for Ring-Opening Polymerization of Cyclic Esters. Organometallics 2011. [DOI: 10.1021/om1010676] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Juan Fernández-Baeza
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Carlos Alonso-Moreno
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Jose A. Castro-Osma
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - I. Márquez-Segovia
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, Móstoles 28933 Madrid, Spain
| | - Ana M. Rodríguez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
| | - Joaquin C. Garcia-Martinez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain
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Strianese M, Milione S, Bertolasi V, Pellecchia C, Grassi A. Heteroscorpionate-based Co2+, Zn2+, and Cu2+ complexes: coordination behavior, aerobic oxidation, and hydrogen sulfide detection. Inorg Chem 2011; 50:900-10. [PMID: 21214208 DOI: 10.1021/ic101467s] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The coordination behavior and reactivity of the phenol-substituted bis(pyrazolyl)methane ligands, (3,5-(t)Bu(2)-2-phenol)bis(3,5-Me(2)-pyrazol-1-yl)methane (L1-H) and 2-phenol-bis(3,5-Me(2)-pyrazol-1-yl)methane (L2-H) have been investigated in the metal complexes (L1-H)CoCl(2) (1), (L1-H)ZnCl(2) (2), (L3)CuCl(2) (3), (L2)(2)Co(2)Cl(2) (4) (L2-H)ZnCl(2) (5), and (L2-H)CuCl(2)·H(2)O (6). The mononuclear tetrahedral cobalt complex 1 was isolated and fully characterized by X-ray single crystal diffraction and (1)H NMR spectroscopy and relaxometry. The neutral L1-H is κ(2)-coordinated to the metal center whereas the not coordinated hydroxy-phenyl group is involved in extended intermolecular hydrogen bonds. Aerobic oxidation of L1-H was observed in the reaction of this ligand with CuCl(2) to yield the para-quinone derivative L3 (L3 = 2-(t)Bu-6-(bis(3,5-Me(2)-pyrazol-1-yl)methyl)cyclohexa-2,5-diene-1,4-dione). Upon oxidation L3 resulted κ(2)-coordinated to the tetrahedral Cu(II) metal center, affording 3. The reaction of L2-H with CoCl(2)·6H(2)O produced the elimination of 1 equiv of hydrochloric acid and the formation of the binuclear complex 4 in which one cobalt is in an octahedral environment featuring two κ(3)-coordinated deprotonated ligands whereas the second cobalt center is detected in tetrahedral coordination geometry, bound to the octahedral cobalt via two phenoxo bridging moieties. Interestingly L2-H, (3-(t)Bu-2-phenol)bis(3,5-Me(2)-pyrazol-1-yl)methane (L4-H), or (5-(t)Bu-2-phenol)bis(3,5-Me(2)-pyrazol-1-yl)methane (L5-H) were not oxidized in the reaction with CuCl(2). The reaction of the ligand L2-H with ZnCl(2) and CuCl(2)·2H(2)O yielded the κ(2)-coordinated tetrahedral complex 5 and the square planar complex 6, respectively. The application of the cobalt complex 1 as molecular dosimeter for H(2)S was explored and compared to that of the zinc analogue 2. Density functional theory (DFT) calculations and NMR experiments to assess the possible mechanisms of H(2)S detection by both 1 and 2 are also described.
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Affiliation(s)
- Maria Strianese
- Dipartimento di Chimica, Università di Salerno, Fisciano (SA), Italy
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Synthesis and structural characterization of mono- and dinuclear Mo(V)-oxo-complexes containing bis(3,5-dimethylpyrazol-1-yl)acetate anion as ligand. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2010.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Silvestri A, Grisi F, Milione S. Ring opening polymerization of lactide promoted by alcoholyzed heteroscorpionate aluminum complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24145] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bassanetti I, Gennari M, Marchiò L, Terenghi M, Elviri L. Li+, Cu+, and Ag+ Oligonuclear Structures with the Sterically Demanding Bis(3,5-tertbutylpyrazol-1-yl)dithioacetate Heteroscorpionate Ligand. Inorg Chem 2010; 49:7007-15. [DOI: 10.1021/ic100886x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Irene Bassanetti
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, viale G. P. Usberti 17/a, I 43100 Parma, Italy
| | - Marcello Gennari
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, viale G. P. Usberti 17/a, I 43100 Parma, Italy
| | - Luciano Marchiò
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, viale G. P. Usberti 17/a, I 43100 Parma, Italy
| | - Mattia Terenghi
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, viale G. P. Usberti 17/a, I 43100 Parma, Italy
| | - Lisa Elviri
- Dipartimento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università degli Studi di Parma, viale G. P. Usberti 17/a, I 43100 Parma, Italy
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Sánchez-Méndez A, de Jesús E, Flores JC, Gómez-Sal P. [Bis(pyrazolyl)methane]palladium Complexes with a Carbosilane Dendritic Structure. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000076] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yogi A, Oh JH, Nishioka T, Tanaka R, Asato E, Kinoshita I, Takara S. Synthesis and structural characterization of novel ruthenium(II) complexes featuring an N,N,O-scorpionate ligand: A versatile synthetic precursor for open-face scorpionatoruthenium(II) complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2010.01.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Otero A, Lara-Sánchez A, Fernández-Baeza J, Martínez-Caballero E, Márquez-Segovia I, Alonso-Moreno C, Sánchez-Barba LF, Rodríguez AM, López -Solera I. New achiral and chiral NNE heteroscorpionate ligands. Synthesis of homoleptic lithium complexes as well as halide and alkyl scandium and yttrium complexes. Dalton Trans 2010; 39:930-40. [DOI: 10.1039/b914966j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Gennari M, Bassanetti I, Marchiò L. Metal-organic chains constructed from pre-organized N2S2 donor ligands. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.05.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Milione S, Capacchione C, Cuomo C, Strianese M, Bertolasi V, Grassi A. New Zinc Complexes bearing κ2-Heteroscorpionate Ligands: Influence of Second-Sphere Bonding Interactions on Reactivity and Properties. Inorg Chem 2009; 48:9510-8. [DOI: 10.1021/ic901091e] [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)
- Stefano Milione
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
| | - Carmine Capacchione
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
| | - Cinzia Cuomo
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
| | - Maria Strianese
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
| | - Valerio Bertolasi
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
| | - Alfonso Grassi
- Dipartimento di Chimica, Università di Salerno, via Ponte don Melillo, I-84084 Fisciano (SA), Italy, and
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36
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Kopf H, Holzberger B, Pietraszuk C, Hübner E, Burzlaff N. Neutral Ruthenium Carbene Complexes bearing N,N,O Heteroscorpionate Ligands: Syntheses and Activity in Metathesis Reactions. Organometallics 2008. [DOI: 10.1021/om8006129] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Henning Kopf
- Department of Chemistry, Universität Konstanz, Fach M728, D-78457 Konstanz, Germany, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Inorganic Chemistry, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
| | - Bastian Holzberger
- Department of Chemistry, Universität Konstanz, Fach M728, D-78457 Konstanz, Germany, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Inorganic Chemistry, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
| | - Cezary Pietraszuk
- Department of Chemistry, Universität Konstanz, Fach M728, D-78457 Konstanz, Germany, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Inorganic Chemistry, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
| | - Eike Hübner
- Department of Chemistry, Universität Konstanz, Fach M728, D-78457 Konstanz, Germany, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Inorganic Chemistry, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
| | - Nicolai Burzlaff
- Department of Chemistry, Universität Konstanz, Fach M728, D-78457 Konstanz, Germany, Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland, and Inorganic Chemistry, Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nürnberg, Egerlandstrasse 1, D-91058 Erlangen, Germany
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Xie YF, Wen ZK, Tan RY, Hong J, Zhao SB, Tang LF. Bis(3,5-dimethylpyrazol-1-yl)acyl and Bis(3,5-dimethylpyrazol-1-yl)methide Carbonyl Tungsten Derivatives. Organometallics 2008. [DOI: 10.1021/om800603p] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yun-Fu Xie
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Zhen-Kang Wen
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Run-Yu Tan
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Juan Hong
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Shu-Bin Zhao
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Liang-Fu Tang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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Otero A, Fernández-Baeza J, Lara-Sánchez A, Antiñolo A, Tejeda J, Martínez-Caballero E, Márquez-Segovia I, López-Solera I, Sánchez-Barba LF, Alonso-Moreno C. Versatile scorpionates and new developments in the denticity changes of NNCp hybrid scorpionate/cyclopentadienyl ligands in Sc and Y compounds: from kappa1-Neta5-Cp to kappa2-NNeta5-Cp. Inorg Chem 2008; 47:4996-5005. [PMID: 18447332 DOI: 10.1021/ic800267v] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of hybrid scorpionate/cyclopentadienyl ligands in the form of the lithium derivatives [Li(bpzcp)(THF)] [bpzcp=2,2-bis(3,5-dimethylpyrazol-1-yl)-1,1-diphenylethylcyclopentadienyl], [Li(bpztcp)(THF)] [bpztcp=2,2-bis(3,5-dimethylpyrazol-1-yl)-1-tert-butylethylcyclopentadienyl], and the in situ-generated "Li(bpzpcp)" [bpzpcp=2,2-bis(3,5-dimethylpyrazol-1-yl)-1-phenylethylcyclopentadienyl] with MCl3(THF)3 afforded the group 3 halide compounds [MCl2(bpzcp)(THF)] (M=Sc, 1; Y, 2), [MCl2(bpztcp)(THF)] (M=Sc, 3; Y, 4), and [MCl2(bpzpcp)(THF)] (M=Sc, 5; Y, 6). The H2O adduct of 4, [YCl2(bpztcp)(H2O)] (7), was formed when a solution of 4 was allowed to stand at room temperature in the presence of moisture. Complexes 1-7 adopt a pseudo-octahedral structure with heteroscorpionate ligands kappa2-NNeta5-Cp coordinated to the metal through the cyclopentadienyl group and two imino nitrogens of pyrazole rings. The alkyl heteroscorpionate scandium and yttrium complexes recently reported by our group, [M(CH2SiMe3)2(bpzcp)], react with 2,6-dimethylphenol and 3,5-dimethylphenol to give the bis(aryloxide) derivatives [M(OAr)2(bpzcp)] (M=Sc, OAr=2,6-dimethylphenoxide, 8; M=Y, OAr=2,6-dimethylphenoxide, 9; M=Y, OAr=3,5-dimethylphenoxide, 10). Complex 9 underwent an interesting hydrolysis process to give the tetranuclear complex [{Y(bpzcp)}(micro-OH)2(micro3-OH){Y(OAr)2}]2 (11). Variable-temperature 1H NMR experiments on 9 and 10 revealed a rapid fluxional exchange between coordinated and noncoordinated pyrazolyl rings, producing interconversion between the two enantiomers in which the scorpionate ligand can be coordinated in a kappa1-Neta5-Cp form. The structures of the complexes were determined by spectroscopic methods and the X-ray crystal structures of 2, 7, and 11 were also established. Complexes 1 and 2 are active olefin polymerization catalysts after activation with methylaluminoxane. These compounds gave atactic polystyrenes with narrow molecular weight distribution (Mn/Mw 1.26-1.91) and with low molecular weights.
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Affiliation(s)
- Antonio Otero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, Ciudad Real, Spain.
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39
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Pellei M, Alidori S, Camalli M, Campi G, Lobbia GG, Mancini M, Papini G, Spagna R, Santini C. Copper(I)–organophosphine complexes of bis(3,5-dimethylpyrazol-1-yl)dithioacetate ligand. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.09.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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Wen ZK, Xie YF, Zhao SB, Tan RY, Tang LF. Functionalized bis(pyrazol-1-yl)methanes by organotin halide on the methine carbon atom and their related reactions. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.01.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Otero A, Fernández-Baeza J, Antiñolo A, Lara-Sánchez A, Martínez-Caballero E, Tejeda J, Sánchez-Barba LF, Alonso-Moreno C, López-Solera I. Scandium and Yttrium Complexes Supported by NNCp Heteroscorpionate Ligands: Synthesis, Structure, and Polymerization of ϵ-Caprolactone. Organometallics 2008. [DOI: 10.1021/om701033r] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [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., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Juan Fernández-Baeza
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Antonio Antiñolo
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Agustín Lara-Sánchez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Emilia Martínez-Caballero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Juan Tejeda
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Carlos Alonso-Moreno
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
| | - Isabel López-Solera
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain., and Departamento de Química Inorgánica y Analítica, Universidad Rey Juan Carlos, 28933 Móstoles, Madrid, Spain
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Burzlaff N. Tripodal N,N,O-ligands for metalloenzyme models and organometallics. ADVANCES IN INORGANIC CHEMISTRY 2008. [DOI: 10.1016/s0898-8838(08)00004-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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43
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Zazybin A, Parkin S, Ladipo FT. Synthesis, characterization, and ethylene polymerization behavior of [(RR′-admpzp)2Ti(OPri)2] complexes (RR′-admpzp=1-dialkylamino-3-(3,5-dimethyl-pyrazol-1-yl)-propan-2-olate). J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.08.040] [Citation(s) in RCA: 3] [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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Tran BL, Carrano CJ. Synthesis and characterization of heteroscorpionate dioxo-tungsten(VI) complexes. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.10.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Tan RY, Hong J, Du M, Tang LF. New multidentate heteroscorpionate ligands: N-Phenyl-2,2-bis(pyrazol-1-yl)thioacetamide and ethyl 2,2-bis(pyrazol-1-yl)dithioacetate as well as their derivatives. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.12.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Otero A, Fernandez-Baeza J, Antiñolo A, Tejeda J, Lara-Sanchez A, Sanchez-Barba LF, López-Solera I, Rodríguez AM. Lithium, Titanium, and Zirconium Complexes with Novel Amidinate Scorpionate Ligands. Inorg Chem 2007; 46:1760-70. [PMID: 17274614 DOI: 10.1021/ic062093c] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of bis(3,5-dimethylpyrazol-1-yl)methane (bdmpzm) with BunLi and carbodiimide derivatives, namely, N,N'-diisopropyl, dicyclohexyl, and 1-tert-butyl-3-ethyl carbodiimides, enables the preparation of new heteroscorpionate ligands in the form of the lithium derivatives [Li(NNN)(THF)] (NNN = pbpamd (1) (pbpamd = N,N'-diisopropylbis(3,5-dimethylpyrazol-1-yl)acetamidinate); cbpamd (2) (cbpamd = N,N'-dicyclohexylbis(3,5-dimethylpyrazol-1-yl)acetamidinate); and tbpamd (3) (tbpamd = N-ethyl-N'-tert-butylbis(3,5-dimethylpyrazol-1-yl)acetamidinate)), although a similar process with N,N'-dimethylcarbodiimide gave the dinuclear complex [Li(bpzii)(THF)]2 (4) (bpzii = N-(dimethylamino)-N'-[(dimethylamino)bis(3,5-dimethylpyrazol-1-yl)methylimino]imino). When this last reaction was carried out in an air atmosphere, the cluster complex [Li8(mu4-O)2(mu4-OH)2(mu4-pz)2(kappa2-bpziLi)2(bpzCN)2(THF)4] (5) (bpziLi = dimethylaminobis(3,5-dimethylpyrazol-1-yl)methyliminolithium, bpzCN = bis(3,5-dimethylpyrazol-1-yl)acetonitrile) was isolated and characterized by X-ray analysis. Finally, when the same process was carried out in the presence of water the amidine-scorpionate (bpzan) (6) (bpzan = N,N-dimethylbis(3,5-dimethylpyrazol-1-yl)acetamidine) was obtained. Compounds 1 and 3 reacted with [TiCl4(THF)2] or [ZrCl4] to give complexes of stoichiometry [MCl3((kappa3-NNN))] (M = Ti, Zr) (7-10). The structures of the different compounds were determined by spectroscopic methods and, in addition, the X-ray crystal structures of 1, 3, 4, 5, and 6 were also established.
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Affiliation(s)
- Antonio Otero
- Departamento de Química InorgAnica, OrgAnica y Bioquímica, Universidad de Castilla-La Mancha, Campus Universitario, 13071-Ciudad Real, Spain.
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48
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Marzano C, Pellei M, Colavito D, Alidori S, Lobbia GG, Gandin V, Tisato F, Santini C. Synthesis, Characterization, and in Vitro Antitumor Properties of Tris(hydroxymethyl)phosphine Copper(I) Complexes Containing the New Bis(1,2,4-triazol-1-yl)acetate Ligand. J Med Chem 2006; 49:7317-24. [PMID: 17149861 DOI: 10.1021/jm0601248] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new sodium bis(1,2,4-triazol-1-yl)acetate ligand, Na[HC(CO(2))(tz)(2)], has been prepared in methanol solution by using 1,2,4-triazole, dibromoacetic acid, and NaOH. Treatment of the [Cu(CH(3)CN)(4)][PF(6)] acceptor with Na[HC(CO(2))(tz)(2)] or Na[HC(CO(2))[(pz(Me2))(2)] in the presence of the tris(hydroxymethyl)phosphine coligand in methanol/acetonitrile solutions produced unprecedented mononuclear copper(I) complexes of the [L(n)]Cu[P(CH(2)OH)(3)](2) (L(1), 2; L(2), 3) [(CH(3)CN)(2)Cu(P(CH(2)OH)(3))(2)]PF(6), 4. These compounds have been characterized by elemental analyses, FTIR, ESI-MS, and multinuclear (1H and 31P) NMR spectral data. The new copper(I) complexes were tested for their cytotoxic properties against a panel of several human tumor cell lines. The results reported here indicate that all the complexes showed in vitro antitumor activity similar or better than that of cisplatin, the most used metal-based antitumor drug. In particular, [HC(CO(2))(pz(Me2))(2)]Cu[P(CH(2)OH)(3)](2), 3 showed IC(50) values markedly lower than the reference compound against all tumor cell lines. Chemosensitivity tests performed on cisplatin sensitive and resistant cell lines have demonstrated that all these Cu(I) complexes were able to overcome cisplatin resistance, supporting the hypothesis of a different mechanism of action compared to that exhibited by the reference drug. Flow cytometric analysis on 2008 human ovarian carcinoma cells revealed that complex 3, chosen as the best candidate, induced a marked enlargement of both cell size and granularity, and a significant increase in the fraction of G2/M cells that, differently from cisplatin, was not accompanied by the appearance of a relevant sub-G1 fraction. Besides, no evidence of caspase-3 activation was detected in cells treated with complex 3. We hypothesize that the cytotoxic activity of the new copper(I) complex may be correlated to its ability to trigger paraptosis, a nonapoptotic mechanism of cell death.
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Affiliation(s)
- Cristina Marzano
- Dipartimento di Scienze Farmaceutiche, Università di Padova, via Marzolo 5, 35131 Padova, Italy.
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Milione S, Cuomo C, Grassi A. Ethylene polymerization catalyzed by group 4 metal complexes of tridentate heteroscorpionate ligands. Top Catal 2006. [DOI: 10.1007/s11244-006-0118-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Pellei M, Gioia Lobbia G, Ricciutelli M, Santini C. Synthesis and spectroscopic characterization of new organotin(IV) complexes with bis(3,5-dimethylpyrazol-1-yl)dithioacetate. J COORD CHEM 2006. [DOI: 10.1080/00958970412331331650] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maura Pellei
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Giancarlo Gioia Lobbia
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Massimo Ricciutelli
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
| | - Carlo Santini
- a Dipartimento di Scienze Chimiche , Università di Camerino , via S. Agostino 1, 62032 Camerino, Macerata, Italy
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