51
|
Völcker F, Roesky PW. Bimetallic rare-earth/platinum complexes ligated by phosphinoamides. Dalton Trans 2016; 45:9429-35. [DOI: 10.1039/c6dt00417b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The heterometallic early-late 5d/4f binuclear phosphinoamido Ln/Pt(0) complexes [(Ph2PNHPh)Pt{μ-(Ph2PNPh)}3Ln(μ-Cl)Li(THF)3] (Ln = Y, Lu) and [(Ph2PNHPh)Pt{μ-(Ph2PNPh)}3Ln{η2-(Ph2PNPh)}][Li(THF)4] (Ln = Y, Lu) are reported.
Collapse
Affiliation(s)
- Franziska Völcker
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
| | - Peter W. Roesky
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
| |
Collapse
|
52
|
Carlsen RW, Ess DH. Allylic amination reactivity of Ni, Pd, and Pt heterobimetallic and monometallic complexes. Dalton Trans 2016; 45:9835-40. [DOI: 10.1039/c6dt00256k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal heterobimetallic complexes with dative metal–metal interactions have the potential for novel fast reactivity.
Collapse
Affiliation(s)
- Ryan W. Carlsen
- Department of Chemistry and Biochemistry
- Brigham Young University
- Provo
- USA
| | - Daniel H. Ess
- Department of Chemistry and Biochemistry
- Brigham Young University
- Provo
- USA
| |
Collapse
|
53
|
Kreider-Mueller A, Quinlivan PJ, Rauch M, Owen JS, Parkin G. Synthesis, structure and reactivity of [TmBut]ZnH, a monomeric terminal zinc hydride compound in a sulfur-rich coordination environment: access to a heterobimetallic compound. Chem Commun (Camb) 2016; 52:2358-61. [DOI: 10.1039/c5cc08915h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The zinc hydride complex, [TmBut]ZnH, undergoes insertion of CO2 and facile protolytic cleavage, of which the latter provides access to heterobimetallic [TmBut]ZnMo(CO)3Cp.
Collapse
Affiliation(s)
| | | | - Michael Rauch
- Department of Chemistry
- Columbia University
- New York
- USA
| | | | - Gerard Parkin
- Department of Chemistry
- Columbia University
- New York
- USA
| |
Collapse
|
54
|
Henckel DA, Lin YF, McCormick TM, Kaminsky W, Cossairt BM. A doubly deprotonated diimine dioximate metalloligand as a synthon for multimetallic complex assembly. Dalton Trans 2016; 45:10068-75. [DOI: 10.1039/c5dt03650j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An electrocatalytically active cobalt diimine dioximate metalloligand was prepared and explored as a precursor for a variety of multimetallic complexes with Co–Zn, –Cd, –Mn, and –Ru coordination.
Collapse
Affiliation(s)
| | - Yuting F. Lin
- University of Washington
- Department of Chemistry
- Seattle
- USA
| | | | | | | |
Collapse
|
55
|
Krogman JP, Bezpalko MW, Foxman BM, Thomas CM. Multi-electron redox processes at a Zr(iv) center facilitated by an appended redox-active cobalt-containing metalloligand. Dalton Trans 2016; 45:11182-90. [DOI: 10.1039/c6dt01498d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of a reduced heterobimetallic Co−I/ZrIV complex with a series of azido and diazo reagents is explored to demonstrate the feasibility of facilitating two-electron redox processes at a formally d0 Zr(iv) center using the appended Co fragment exclusively as an electron-reservoir.
Collapse
|
56
|
Abstract
Alfred Werner, who pioneered the field of coordination chemistry, envisioned coordination complexes as a single, transition metal atom at the epicenter of a vast ligand space. The idea that the locus of a coordination complex could be shared by multiple metals held together with covalent bonds would eventually lead to the discovery of the quadruple and quintuple bond, which have no analogues outside of the transition metal block. Metal-metal bonding can be classified into homometallic and heterometallic groups. Although the former is dominant, the latter is arguably more intriguing because of the inherently larger chemical space in which metal-metal bonding can be explored. In 2013, Lu and Thomas independently reported the isolation of heterometallic multiple bonds with exclusively first-row transition metals. Structural and theoretical data supported triply bonded Fe-Cr and Fe-V cores. This Account describes our continued efforts to configure bonds between first-row transition metals from titanium to copper. Double-decker ligands, or binucleating platforms that brace two transition metals in proximity, have enabled the modular synthesis of diverse metal-metal complexes. The resulting complexes are also ideal for investigating the effects of an "ancillary" metal on the properties and reactivities of an "active" metal center. A total of 38 bimetallic complexes have been compiled comprising 18 unique metal-metal pairings. Twenty-one of these bimetallics are strictly isostructural, allowing for a systematic comparison of metal-metal bonding. The nature of the chemical bond between first-row metals is remarkably variable and depends on two primary factors: the total d-electron count, and the metals' relative d-orbital energies. Showcasing the range of covalent bonding are a quintuply bonded (d-d)(10) Mn-Cr heterobimetallic and the singly bonded late-late pairings, e.g., Fe-Co, which adopt unusually high spin states. A long-term goal is to rationally tailor the properties and reactivities of the bimetallic complexes. In some cases, synergistic redox and magnetic properties were found that are different from the expected sum of the individual metals. Intermetal charge transfer was shown in a Co-M series, for M = Mn to Cu, where the transition energy decreases as M is varied across the first-row period. The potential of using metal-metal complexes for multielectron reduction of small-molecules is addressed by N2 binding studies and a mechanistic study of a dicobalt catalyst in reductive silylation of N2 to N(SiMe3)3. Finally, metal-ion exchange reactions with metal-metal complexes can be selective under appropriate reaction conditions, providing an alternative synthetic route to metal-metal species.
Collapse
Affiliation(s)
- Reed J. Eisenhart
- Department of Chemistry and Center for Metals in Biocatalysis, University Of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Laura J. Clouston
- Department of Chemistry and Center for Metals in Biocatalysis, University Of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Connie C. Lu
- Department of Chemistry and Center for Metals in Biocatalysis, University Of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| |
Collapse
|
57
|
Casado MA, Álvarez-Vergara MC, Pérez-Torrente JJ, Lahoz FJ, Dobrinovich IT, Oro LA. Synthesis of Titanium and Zirconium Complexes with 2-Pyridonate and 2, 6-Pyridinedithiolate Ligands. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
58
|
Krogman JP, Foxman BM, Thomas CM. Formation and Subsequent Reactivity of a N2-Stabilized Cobalt–Hydride Complex. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00182] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jeremy P. Krogman
- Department of Chemistry, Brandeis University, 415 South Street MS 015, Waltham, Massachusetts 02454, United States
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, 415 South Street MS 015, Waltham, Massachusetts 02454, United States
| | - Christine M. Thomas
- Department of Chemistry, Brandeis University, 415 South Street MS 015, Waltham, Massachusetts 02454, United States
| |
Collapse
|
59
|
Walker WK, Kay BM, Michaelis SA, Anderson DL, Smith SJ, Ess DH, Michaelis DJ. Origin of Fast Catalysis in Allylic Amination Reactions Catalyzed by Pd–Ti Heterobimetallic Complexes. J Am Chem Soc 2015; 137:7371-8. [DOI: 10.1021/jacs.5b02428] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Whitney K. Walker
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Benjamin M. Kay
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Scott A. Michaelis
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Diana L. Anderson
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Stacey J. Smith
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Daniel H. Ess
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - David J. Michaelis
- Department of Chemistry and
Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| |
Collapse
|
60
|
Zhang Y, Roberts SP, Bergman RG, Ess DH. Mechanism and Catalytic Impact of Ir–Ta Heterobimetallic and Ir–P Transition Metal/Main Group Interactions on Alkene Hydrogenation. ACS Catal 2015. [DOI: 10.1021/cs501884j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ying Zhang
- Department
of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Samuel P. Roberts
- Department
of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Robert G. Bergman
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Daniel H. Ess
- Department
of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| |
Collapse
|
61
|
Ostapowicz TG, Fryzuk MD. Anionic Tantalum Dihydride Complexes: Heterobimetallic Coupling Reactions and Reactivity toward Small-Molecule Activation. Inorg Chem 2015; 54:2357-66. [DOI: 10.1021/ic502976r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Thomas G. Ostapowicz
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada
| | - Michael D. Fryzuk
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada
| |
Collapse
|
62
|
Mohamed AS, Jourdain I, Knorr M, Rousselin Y, Kubicki MM. Crystal structure of tricarbon-yl(μ-di-phenyl-phosphido-κ(2) P:P)(methyl-diphenyl-silyl-κSi)bis(tri-phenyl-phosphane-κP)iron(II)platinum(0)(Fe-Pt). Acta Crystallogr E Crystallogr Commun 2015; 71:241-3. [PMID: 25878830 PMCID: PMC4384561 DOI: 10.1107/s2056989015001565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 01/23/2015] [Indexed: 12/04/2022]
Abstract
The title compound, [FePt(C12H10P)(C13H13Si)(C18H15P)2(CO)3]·0.5CH2Cl2, represents an example of a phosphido-bridged heterobimetallic silyl complex; these are inter-esting precursors for the coordination and activation of small unsaturated organic mol-ecules. The μ2-PPh2 ligand spans the iron and platinum atoms, which are connected via a metal-metal bond of 2.7738 (4) Å. In contrast to most other complexes of the [(OC)3Fe(SiR 3)(μ-PR 2)PtL 2] family, where the iron-bound SiR 3 group is trans-arranged with respect to the μ2-PPh2 ligand, the SiPh2Me ligand is roughly collinear with the Fe-Pt vector [Si-Fe-Pt = 169.07 (3)°].
Collapse
Affiliation(s)
- Ahmed Said Mohamed
- Institut UTINAM UMR CNRS 6213, University of Franche-Comté, 16 route de Gray, Besançon 25030, France
| | - Isabelle Jourdain
- Institut UTINAM UMR CNRS 6213, University of Franche-Comté, 16 route de Gray, Besançon 25030, France
| | - Michael Knorr
- Institut UTINAM UMR CNRS 6213, University of Franche-Comté, 16 route de Gray, Besançon 25030, France
| | - Yoann Rousselin
- ICMUB UMR CNRS 6302, University of Burgundy, 9 avenue Alain Savary, Dijon 21078, France
| | - Marek M. Kubicki
- ICMUB UMR CNRS 6302, University of Burgundy, 9 avenue Alain Savary, Dijon 21078, France
| |
Collapse
|
63
|
Wu B, Bezpalko MW, Foxman BM, Thomas CM. A heterobimetallic complex featuring a Ti-Co multiple bond and its application to the reductive coupling of ketones to alkenes. Chem Sci 2015; 6:2044-2049. [PMID: 29142672 PMCID: PMC5654242 DOI: 10.1039/c4sc03772c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/18/2015] [Indexed: 12/12/2022] Open
Abstract
A Ti/Co heterobimetallic complex featuring a very short metal–metal triple bond has been synthesized. This complex promotes the reductive coupling reaction of aryl ketones into alkenes.
To explore metal–metal multiple bonds between first row transition metals, Ti/Co complexes supported by two phosphinoamide ligands have been synthesized and characterized. The Ti metalloligand Cl2Ti(XylNPiPr2)2 (1) was treated with CoI2 under reducing conditions, permitting isolation of the Ti/Co complex [(μ-Cl)Ti(XylNPiPr2)2CoI]2 (2). One electron reduction of complex 2 affords ClTi(XylNPiPr2)2CoPMe3 (3), which features a metal–metal triple bond and an unprecedentedly short Ti–Co distance of 2.0236(9) Å. This complex is shown to promote the McMurry coupling reaction of aryl ketones into alkenes, with concomitant formation of the tetranuclear complex [Ti(μ3-O)(NXylPiPr2)2CoI]2 (4). A cooperative mechanism involving bimetallic C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
O bond activation and a cobalt carbene intermediate is proposed.
Collapse
Affiliation(s)
- Bing Wu
- Department of Chemistry , Brandeis University , 415 South Street MS 015 , Waltham , MA 02454 , USA .
| | - Mark W Bezpalko
- Department of Chemistry , Brandeis University , 415 South Street MS 015 , Waltham , MA 02454 , USA .
| | - Bruce M Foxman
- Department of Chemistry , Brandeis University , 415 South Street MS 015 , Waltham , MA 02454 , USA .
| | - Christine M Thomas
- Department of Chemistry , Brandeis University , 415 South Street MS 015 , Waltham , MA 02454 , USA .
| |
Collapse
|
64
|
|
65
|
Pandiarajan T, John Berchmans L, Ravichandran S. Fabrication of spinel ferrite based alkaline anion exchange membrane water electrolysers for hydrogen production. RSC Adv 2015. [DOI: 10.1039/c5ra01123j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alkaline anion exchange membrane water electrolysis (AEMWE) is considered to be an alternative to proton exchange membrane water electrolysis (PEMWE), owing to the use of non-noble meta/metal oxides in AEMWE.
Collapse
Affiliation(s)
- T. Pandiarajan
- Electro Inorganic Chemicals Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630003
- India
| | - L. John Berchmans
- Electro Inorganic Chemicals Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630003
- India
| | - S. Ravichandran
- Electro Inorganic Chemicals Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630003
- India
| |
Collapse
|
66
|
Kuppuswamy S, Cass T, Bezpalko MW, Foxman BM, Thomas CM. Synthesis and investigation of the metal–metal interactions in heterobimetallic Cr/Rh and Cr/Ir complexes. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.07.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
67
|
Meyer J, González-Gallardo S, Hohnstein S, Garnier D, Armbruster MK, Fink K, Klopper W, Breher F. Tris(3,5-dimethylpyrazolyl)methane-Based Heterobimetallic Complexes that Contain Zn and CdTransition-Metal Bonds: Synthesis, Structures, and Quantum Chemical Calculations. Chemistry 2014; 21:2905-14. [DOI: 10.1002/chem.201405397] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/10/2014] [Indexed: 11/10/2022]
|
68
|
Dunn PL, Reath AH, Clouston LJ, Young VG, Tonks IA. Homo- and heteroleptic group 4 2-(diphenylphosphino)pyrrolide complexes: Synthesis, coordination chemistry and solution state dynamics. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.06.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
69
|
Blusch LK, Mitevski O, Martin-Diaconescu V, Pröpper K, DeBeer S, Dechert S, Meyer F. Selective synthesis and redox sequence of a heterobimetallic nickel/copper complex of the noninnocent Siamese-twin porphyrin. Inorg Chem 2014; 53:7876-85. [PMID: 25014112 DOI: 10.1021/ic500460n] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The Siamese-twin porphyrin (1H4) is a redox noninnocent pyrazole-expanded porphyrin with two equivalent dibasic {N4} binding sites. It is now shown that its selective monometalation can be achieved to give the nickel(II) complex 1H2Ni with the second {N4} site devoid of a metal ion. This intermediate is then cleanly converted to 1Ni2 and to the first heterobimetallic Siamese-twin porphyrin 1CuNi. Structural characterization of 1H2Ni shows that it has the same helical structure previously seen for 1Cu2, 1Ni2, and free base 1H6(2+). Titration experiments suggest that the metal-devoid pocket of 1H2Ni can accommodate two additional protons, giving [1H4Ni](2+). Both bimetallic complexes 1Ni2 and 1CuNi feature rich redox chemistry, similar to the recently reported 1Cu2, including two chemically reversible oxidations at moderate potentials between -0.3 and +0.5 V (vs Cp2Fe/Cp2Fe(+)). The locus of these oxidations, in singly oxidized [1Ni2](+) and [1CuNi](+) as well as twice oxidized [1CuNi](2+), has been experimentally derived from comparison of the electrochemical properties of the complete series of complexes 1Cu2, 1Ni2, and 1CuNi, and from electron paramagnetic resonance (EPR) spectroscopy and X-ray absorption spectroscopy (XAS) (Ni and Cu K edges). All redox events are largely ligand-based, and in heterobimetallic 1CuNi, the first oxidation takes place within its Cu-subunit, while the second oxidation then occurs in its Ni-subunit. Adding pyridine to solutions of [1Ni2](+) and [1CuNi](2+) cleanly converts them to metal-oxidized redox isomers with axial EPR spectra typical for Ni(III) having significant dz(2)(1) character, reflecting close similarity with nickel complexes of common porphyrins. The possibility of selectively synthesizing heterobimetallic complexes 1MNi from a symmetric binucleating ligand scaffold, with the unusual situation of three distinct contiguous redox sites (M, Ni, and the porphyrin-like ligand), further expands the Siamese-twin porphyrin's potential to serve as an adjustable platform for multielectron redox processes in chemical catalysis and in electronic applications.
Collapse
Affiliation(s)
- Lina K Blusch
- Institut für Anorganische Chemie, Georg-August Universität , Tammannstrasse 4, D-37077 Göttingen, Germany
| | | | | | | | | | | | | |
Collapse
|
70
|
Oishi M, Oshima M, Suzuki H. A Study on Zr–Ir Multiple Bonding Active for C–H Bond Cleavage. Inorg Chem 2014; 53:6634-54. [PMID: 24915499 DOI: 10.1021/ic500258g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Masataka Oishi
- Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masato Oshima
- School
of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi-shi, Kanagawa 243-0297, Japan
| | - Hiroharu Suzuki
- Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
71
|
Hutchinson DJ, Hanton LR, Moratti SC. The one pot synthesis of heterobimetallic complexes from a homoditopic pyrimidine–hydrazone ligand. RSC Adv 2014. [DOI: 10.1039/c3ra47735e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Three new heterobimetallic complexes have been synthesised facilely in high yield and purity from a symmetric homoditopic pyrimidine-hydrazone ligand in a one-pot, two step reaction.
Collapse
Affiliation(s)
| | - Lyall R. Hanton
- Department of Chemistry
- University of Otago
- Dunedin, New Zealand
| | | |
Collapse
|
72
|
Pandiarajan T, Ravichandran S, Berchmans LJ. Enhancing the electro catalytic activity of manganese ferrite through cerium substitution for oxygen evolution in KOH solutions. RSC Adv 2014. [DOI: 10.1039/c4ra09806d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alkaline water electrolysis (AWE) is the simplest way of producing hydrogen, an attractive fuel for the future.
Collapse
Affiliation(s)
- T. Pandiarajan
- CSIR – Central Electrochemical Research Institute
- Karaikudi-630006, India
| | - S. Ravichandran
- CSIR – Central Electrochemical Research Institute
- Karaikudi-630006, India
| | - L. J. Berchmans
- CSIR – Central Electrochemical Research Institute
- Karaikudi-630006, India
| |
Collapse
|
73
|
Krogman JP, Thomas CM. Metal–metal multiple bonding in C3-symmetric bimetallic complexes of the first row transition metals. Chem Commun (Camb) 2014; 50:5115-27. [DOI: 10.1039/c3cc47537a] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
74
|
Goforth SK, Walroth RC, Brannaka JA, Angerhofer A, McElwee-White L. Heterobimetallic Complexes of Polypyridyl Ligands Containing Paramagnetic Centers: Synthesis and Characterization by IR and EPR. Inorg Chem 2013; 52:14116-23. [DOI: 10.1021/ic401952s] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sarah K. Goforth
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Richard C. Walroth
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Joseph A. Brannaka
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Alexander Angerhofer
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Lisa McElwee-White
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| |
Collapse
|
75
|
Schwedtmann K, Holthausen MH, Feldmann KO, Weigand JJ. NHC-Mediated Synthesis of an Asymmetric, Cationic Phosphoranide, a Phosphanide, and Coinage-Metal Phosphanido Complexes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308309] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
76
|
Schwedtmann K, Holthausen MH, Feldmann KO, Weigand JJ. NHC-mediated synthesis of an asymmetric, cationic phosphoranide, a phosphanide, and coinage-metal phosphanido complexes. Angew Chem Int Ed Engl 2013; 52:14204-8. [PMID: 24259151 DOI: 10.1002/anie.201308309] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Indexed: 11/12/2022]
Affiliation(s)
- Kai Schwedtmann
- Professur für Anorganische Koordinationschemie, TU Dresden, 01062 Dresden (Germany)
| | | | | | | |
Collapse
|
77
|
Napoline JW, Kraft SJ, Matson EM, Fanwick PE, Bart SC, Thomas CM. Tris(phosphinoamide)-supported uranium-cobalt heterobimetallic complexes featuring Co → U dative interactions. Inorg Chem 2013; 52:12170-7. [PMID: 24111545 DOI: 10.1021/ic402343q] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A series of tris- and tetrakis(phosphinoamide) U/Co complexes has been synthesized. The uranium precursors, (η(2)-Ph2PN(i)Pr)4U (1), (η(2)-(i)Pr2PNMes)4U (2), (η(2)-Ph2PN(i)Pr)3UCl (3), and (η(2)-(i)Pr2PNMes)3UI (4), were easily accessed via addition of the appropriate stoichiometric equivalents of [Ph2PN(i)Pr]K or [(i)Pr2PNMes]K to UCl4 or UI4(dioxane)2. Although the phosphinoamide ligands in 1 and 4 have been shown to coordinate to U in an η(2)-fashion in the solid state, the phosphines are sufficiently labile in solution to coordinate cobalt upon addition of CoI2, generating the heterobimetallic Co/U complexes ICo(Ph2PN(i)Pr)3U[η(2)-Ph2PN(i)Pr] (5), ICo((i)Pr2PNMes)3U[η(2)-((i)Pr2PNMes)] (6), ICo(Ph2PN(i)Pr)3UI (7), and ICo((i)Pr2PNMes)3UI (8). Structural characterization of complexes 5 and 7 reveals reasonably short Co-U interatomic distances, with 7 exhibiting the shortest transition metal-uranium distance ever reported (2.874(3) Å). Complexes 7 and 8 were studied by cyclic voltammetry to examine the influence of the metal-metal interaction on the redox properties compared with both monometallic Co and heterobimetallic Co/Zr complexes. Theoretical studies are used to further elucidate the nature of the transition metal-actinide interaction.
Collapse
Affiliation(s)
- J Wesley Napoline
- Department of Chemistry, Brandeis University , 415 South Street, Waltham, Massachusetts 02454, United States
| | | | | | | | | | | |
Collapse
|
78
|
Chi Y. Chemistry of Heterometallic Cluster Compounds Prepared by Condensation of Group 6 Metal Acetylide and Group 8 Binary Carbonyl Complexes. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199200093] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
79
|
Timerbulatova MG, Gatus MRD, Vuong KQ, Bhadbhade M, Algarra AG, Macgregor SA, Messerle BA. Bimetallic Complexes for Enhancing Catalyst Efficiency: Probing the Relationship between Activity and Intermetallic Distance. Organometallics 2013. [DOI: 10.1021/om4005059] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina G. Timerbulatova
- School of Chemistry, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Mark R. D. Gatus
- School of Chemistry, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Khuong Q. Vuong
- School of Chemistry, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Mohan Bhadbhade
- Mark Wainwright Analytical Centre, University of New South Wales, Kensington, New South Wales 2052, Australia
| | - Andrés G. Algarra
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Stuart A. Macgregor
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Barbara A. Messerle
- School of Chemistry, University of New South Wales, Kensington, New South Wales 2052, Australia
| |
Collapse
|
80
|
Donets PA, Cramer N. Diaminophosphine Oxide Ligand Enabled Asymmetric Nickel-Catalyzed Hydrocarbamoylations of Alkenes. J Am Chem Soc 2013; 135:11772-5. [DOI: 10.1021/ja406730t] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Pavel A. Donets
- Laboratory of Asymmetric Catalysis
and Synthesis, Institute
of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne,
Switzerland
| | - Nicolai Cramer
- Laboratory of Asymmetric Catalysis
and Synthesis, Institute
of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne,
Switzerland
| |
Collapse
|
81
|
Jayarathne U, Mazzacano TJ, Bagherzadeh S, Mankad NP. Heterobimetallic Complexes with Polar, Unsupported Cu–Fe and Zn–Fe Bonds Stabilized by N-Heterocyclic Carbenes. Organometallics 2013. [DOI: 10.1021/om400471u] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Upul Jayarathne
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607, United States
| | - Thomas J. Mazzacano
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607, United States
| | - Sharareh Bagherzadeh
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago,
Illinois 60607, United States
| |
Collapse
|
82
|
Jian C, Zhang J, Dai Z, Gao Y, Tang N, Wu J. Synthesis and Characterization of Magnesium Alkoxides Incorporated into Bulky Aluminium Tetraphenolate Helices and Application in the Ring‐Opening Polymerization of Lactides. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300284] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chunli Jian
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| | - Jinjin Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| | - Zhongran Dai
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| | - Yuan Gao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| | - Ning Tang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| | - Jincai Wu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China, http://chem.lzu.edu.cn/LZCHEM/visit/szdw/Teacher_One.aspx?TeacherNO=51
| |
Collapse
|
83
|
Napoline JW, Krogman JP, Shi R, Kuppuswamy S, Bezpalko MW, Foxman BM, Thomas CM. Activation of E-H and E-E (E = S, O) Bonds by Heterobimetallic Zr/Co Complexes: Evidence for Both One- and Two-Electron Processes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300122] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
84
|
Goforth SK, Walroth RC, McElwee-White L. Evaluation of Multisite Polypyridyl Ligands as Platforms for the Synthesis of Rh/Zn, Rh/Pd, and Rh/Pt Heterometallic Complexes. Inorg Chem 2013; 52:5692-701. [DOI: 10.1021/ic301810y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sarah K. Goforth
- Department of Chemistry,
University of Florida, Gainesville, Florida 32611, United States
| | - Richard C. Walroth
- Department of Chemistry,
University of Florida, Gainesville, Florida 32611, United States
| | - Lisa McElwee-White
- Department of Chemistry,
University of Florida, Gainesville, Florida 32611, United States
| |
Collapse
|
85
|
Hayatifar M, Marchetti F, Pampaloni G, Zacchini S. Synthesis, X-ray Characterization, and Reactivity of α-Aminoacidato Ethoxide Complexes of Niobium(V) and Tantalum(V). Inorg Chem 2013; 52:4017-25. [DOI: 10.1021/ic4000654] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammad Hayatifar
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Guido Pampaloni
- Dipartimento di
Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Stefano Zacchini
- Dipartimento di
Chimica Industriale “Toso Montanari”, Università di Bologna, Viale Risorgimento 4,
I-40136 Bologna, Italy
| |
Collapse
|
86
|
Rudd PA, Liu S, Planas N, Bill E, Gagliardi L, Lu CC. Multiple Metal-Metal Bonds in Iron-Chromium Complexes. Angew Chem Int Ed Engl 2013; 52:4449-52. [DOI: 10.1002/anie.201208686] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Indexed: 11/05/2022]
|
87
|
Rudd PA, Liu S, Planas N, Bill E, Gagliardi L, Lu CC. Multiple Metal-Metal Bonds in Iron-Chromium Complexes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201208686] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
88
|
Zhou W, Marquard SL, Bezpalko MW, Foxman BM, Thomas CM. Catalytic Hydrosilylation of Ketones Using a Co/Zr Heterobimetallic Complex: Evidence for an Unusual Mechanism Involving Ketyl Radicals. Organometallics 2013. [DOI: 10.1021/om301194g] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Wen Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Seth L. Marquard
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Mark W. Bezpalko
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| | - Christine M. Thomas
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts,
02454, United States
| |
Collapse
|
89
|
Ma M, Sidiropoulos A, Ralte L, Stasch A, Jones C. Metal-only Lewis pairs featuring unsupported Pt→M (M = Zn or Cd) dative bonds. Chem Commun (Camb) 2013; 49:48-50. [DOI: 10.1039/c2cc37442k] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
90
|
Napoline JW, Bezpalko MW, Foxman BM, Thomas CM. N–H activation of hydrazines by a heterobimetallic Zr–Co complex: promotion of one-electron chemistry at Zr. Chem Commun (Camb) 2013; 49:4388-90. [DOI: 10.1039/c2cc35594a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
91
|
Kuppuswamy S, Bezpalko MW, Powers TM, Turnbull MM, Foxman BM, Thomas CM. Utilization of Phosphinoamide Ligands in Homobimetallic Fe and Mn Complexes: The Effect of Disparate Coordination Environments on Metal–Metal Interactions and Magnetic and Redox Properties. Inorg Chem 2012; 51:8225-40. [DOI: 10.1021/ic300776y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Subramaniam Kuppuswamy
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts
02454, United States
| | - Mark W. Bezpalko
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts
02454, United States
| | - Tamara M. Powers
- Department of Chemistry and Chemical
Biology, Harvard University, Cambridge,
Massachusetts 02139, United States
| | - Mark M. Turnbull
- Carlson
School of Chemistry
and Biochemistry, Clark University, 950
Main Street, Worcester, Massachusetts 01610, United States
| | - Bruce M. Foxman
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts
02454, United States
| | - Christine M. Thomas
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts
02454, United States
| |
Collapse
|
92
|
Oishi M, Kino M, Saso M, Oshima M, Suzuki H. Early–Late Heterobimetallic Complexes with a Ta–Ir Multiple Bond: Bimetallic Oxidative Additions of C–H, N–H, and O–H Bonds. Organometallics 2012. [DOI: 10.1021/om300429u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Masataka Oishi
- Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku,
Tokyo 152-8552, Japan
| | - Masashi Kino
- Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku,
Tokyo 152-8552, Japan
| | - Masayuki Saso
- Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku,
Tokyo 152-8552, Japan
| | - Masato Oshima
- School
of Engineering, Tokyo
Polytechnic University, 1583 Iiyama, Atsugi-shi, Kanagawa 243-0297,
Japan
| | - Hiroharu Suzuki
- Graduate School of Science and
Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku,
Tokyo 152-8552, Japan
| |
Collapse
|
93
|
|
94
|
Kuppuswamy S, Cooper BG, Bezpalko MW, Foxman BM, Powers TM, Thomas CM. Synthesis and structural characterization of high spin M/Cu (M = Mn, Fe) heterobimetallic and Fe/Cu2 trimetallic phosphinoamides. Inorg Chem 2012; 51:1866-73. [PMID: 22257083 DOI: 10.1021/ic202165z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The heterobimetallic complexes [Mn((i)PrNPPh(2))(3)Cu((i)PrNHPPh(2))] (1) and [Fe((i)PrNPPh(2))(3)Cu((i)PrNHPPh(2))] (2) have been synthesized by the one pot reaction of LiN(i)PrPPh(2), MCl(2) (M = Mn, Fe), and CuI in high yield. Addition of excess CuI into 2 or directly to the reaction mixture led to the formation of a heterotrimetallic [Fe((i)PrNPPh(2))(3)Cu(2)((i)PrNPPh(2))] (3) in good yield. Complexes 1-3 have been characterized by means of elemental analysis, paramagnetic (1)H NMR, UV-vis spectroscopy, cyclic voltammetry, and single crystal X-ray analysis. In all three complexes, Mn or Fe are in the +2 oxidation state and have a high spin electron configuration, as evidenced by solution Evans' method. In addition, the oxidation state of Fe in complex 3 is confirmed by zero-field (57)Fe Mössbauer spectroscopy. X-ray crystallography reveals that the three coordinate Mn/Fe centers in the zwitterionic complexes 1-3 adopt an unusual trigonal planar geometry.
Collapse
Affiliation(s)
- Subramaniam Kuppuswamy
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | | | | | | | | | | |
Collapse
|
95
|
Cooper BG, Napoline JW, Thomas CM. Catalytic Applications of Early/Late Heterobimetallic Complexes. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2012. [DOI: 10.1080/01614940.2012.619931] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
96
|
Daniels DP, Deacon GB, Harakat D, Jaroschik F, Junk PC. Synthesis and characterisation of alkaline earth bis(diphenylphosphano)metallocene complexes and heterobimetallic alkaline earth metal/platinum(ii) complexes [Ae(thf)x(η5-C5H4PPh2)2Pt(Me)2] (Ae = Ca, Sr, Ba). Dalton Trans 2012; 41:267-77. [DOI: 10.1039/c1dt11324k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
97
|
Kameo H, Nakajima Y, Namura K, Suzuki H. Heterometallic Effects in Nitrogen–Hydrogen Bond Cleavage by Trinuclear Mixed-Metal Polyhydrido Clusters Containing Ruthenium and Osmium. Organometallics 2011. [DOI: 10.1021/om200901j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hajime Kameo
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yumiko Nakajima
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Kyo Namura
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiroharu Suzuki
- Department of Applied Chemistry,
Graduate School of
Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
98
|
Serra D, Correia MC, McElwee-White L. Iron and Ruthenium Heterobimetallic Carbonyl Complexes as Electrocatalysts for Alcohol Oxidation: Electrochemical and Mechanistic Studies. Organometallics 2011. [DOI: 10.1021/om101070z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Daniel Serra
- Department of Chemistry
and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Marie C. Correia
- Department of Chemistry
and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Lisa McElwee-White
- Department of Chemistry
and Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| |
Collapse
|
99
|
Gogoi U, Guha AK, Phukan AK. Nature of Intramolecular Metal–Metal Interactions in Supported Group 4–Group 9 and Group 6–Group 9 Heterobimetallic Complexes: A Combined Density Functional Theory and Topological Study. Organometallics 2011. [DOI: 10.1021/om200833a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ujjal Gogoi
- Department
of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
| | - Ankur Kanti Guha
- Department
of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
| | - Ashwini K. Phukan
- Department
of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India
| |
Collapse
|
100
|
Curley JJ, Bergman RG, Tilley TD. Preparation and physical properties of early-late heterobimetallic compounds featuring Ir-M bonds (M = Ti, Zr, Hf). Dalton Trans 2011; 41:192-200. [PMID: 22020701 DOI: 10.1039/c1dt11753j] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Treatment of Cp*Ir N(t)Bu (1) with the appropriate metallocene equivalent is an effective route for the preparation of the heterobimetallic complexes Cp*Ir(μ-N(t)Bu)MCp(2) (2-M, M = Ti, Zr, Hf). The electronic structures of the isostructural series of compounds, 2-M, are described with reference to single-crystal X-ray, Raman, UV-vis, and cyclic voltammetry data. Density functional theory (DFT) calculations were used to aid in the interpretation of this experimental work. Treatment of the zirconium or hafnium congeners with 2,6-lutidinium triflate leads to protonation of the Ir-M bond, to afford Cp*Ir(μ-N(t)Bu)(μ-H)MCp(2)OTf (3-M, M = Zr, Hf). Compound 3-Zr was characterized by single-crystal X-ray diffraction and independently prepared by the reaction of 1 and Cp(2)Zr(H)Cl in the presence of Me(3)SiOTf. In reactions analogous to those for 2-Zr, 2-Hf reacts with S(8) and aryl azides to insert an S-atom or aryl azide fragment into the metal-metal bond, yielding Cp*Ir(μ-N(t)Bu)(μ-S)HfCp(2) (6-Hf) and Cp*Ir(μ-N(t)Bu)(N(3)Ph)HfCp(2) (4-Hf), respectively. Heating 4-Hf results in N(2) extrusion to form Cp*Ir(μ-N(t)Bu)(NPh)HfCp(2) (5-Hf). The kinetics of the latter reaction were studied to obtain activation parameters and a Hammett trend; these data are compared to those for the analogous reaction involving Ir-Zr heterobimetallics.
Collapse
Affiliation(s)
- John J Curley
- Department of Chemistry, University of California, Berkeley, CA 94720, USA
| | | | | |
Collapse
|