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Iffland L, Khedkar A, Petuker A, Lieb M, Wittkamp F, van Gastel M, Roemelt M, Apfel UP. Solvent-Controlled CO2 Reduction by a Triphos–Iron Hydride Complex. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00711] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linda Iffland
- Anorganische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Abhishek Khedkar
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
- Max-Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Anette Petuker
- Anorganische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Max Lieb
- Anorganische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Florian Wittkamp
- Anorganische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Maurice van Gastel
- Max-Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Michael Roemelt
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
- Max-Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Ulf-Peter Apfel
- Anorganische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
- Fraunhofer UMSICHT, Osterfelder Straße 3, 46047 Oberhausen, Germany
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Dai H, Guan H. Iron Dihydride Complexes: Synthesis, Reactivity, and Catalytic Applications. Isr J Chem 2017. [DOI: 10.1002/ijch.201700101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huiguang Dai
- Department of Chemistry University of Cincinnati Cincinnati, OH 45221-0172 USA
| | - Hairong Guan
- Department of Chemistry University of Cincinnati Cincinnati, OH 45221-0172 USA
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Hickey AK, Chen CH, Pink M, Smith JM. Low-Valent Iron Carbonyl Complexes with a Tripodal Carbene Ligand. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00646] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anne K. Hickey
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Chun-Hsing Chen
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Jeremy M. Smith
- Department of Chemistry, Indiana University, 800 East
Kirkwood Avenue, Bloomington, Indiana 47405, United States
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Oishi M, Endo T, Oshima M, Suzuki H. Aluminum-stabilized low-spin iron(II) hydrido complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane. Inorg Chem 2014; 53:5100-8. [PMID: 24801527 DOI: 10.1021/ic500195q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We investigated herein the reactions of (Me3tacn)FeCln (1a: n = 3, 1b: n = 2) with common aluminum hydride reagents and a bulky dihydridoaluminate {Li(ether)2}{Al(OC6H3-2,6-(t)Bu2)}(μ-H)2, which yielded the diamagnetic hydrido complexes 2-4 containing Fe(II) and Al(III). In particular, the use of divalent 1b afforded excellent isolated yields. The structures of 2-4 were determined using spectroscopic and crystallographic analyses. The crystal structures showed distorted octahedral Fe centers and fairly short Fe-Al distances [2.19-2.24 Å]. The structures of cation moiety 2 and neutral complex 4 were further probed using DFT calculations, which indicated a stable low-spin Fe(II) state and strongly electron-donating nature of the (Me3tacn)FeH3 fragment toward the Al(III) center.
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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
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Frank N, Hanau K, Flosdorf K, Langer R. Formation of an iron phosphine–borane complex by formal insertion of BH3 into the Fe–P bond. Dalton Trans 2013; 42:11252-61. [DOI: 10.1039/c3dt51254a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Langer R, Iron MA, Konstantinovski L, Diskin-Posner Y, Leitus G, Ben-David Y, Milstein D. Iron Borohydride Pincer Complexes for the Efficient Hydrogenation of Ketones under Mild, Base-Free Conditions: Synthesis and Mechanistic Insight. Chemistry 2012; 18:7196-209. [DOI: 10.1002/chem.201200159] [Citation(s) in RCA: 176] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Indexed: 11/05/2022]
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7
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Coordination Modes and Hydride Exchange Dynamics in Transition Metal Tetrahydroborate Complexes. STRUCTURE AND BONDING 2007. [DOI: 10.1007/430_2007_076] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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Makhaev VD. Structural and dynamic properties of tetrahydroborate complexes. RUSSIAN CHEMICAL REVIEWS 2007. [DOI: 10.1070/rc2000v069n09abeh000580] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yu Y, Brennessel WW, Holland PL. Borane B-C Bond Cleavage by a Low-Coordinate Iron Hydride Complex and N-N Bond Cleavage by the Hydridoborate Product. Organometallics 2007; 26:3217-3226. [PMID: 18725998 DOI: 10.1021/om7003805] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The iron(II) hydride dimers [L(R)Fe(μ-H)(2)FeL(R)] (L(Me) = 2,4-bis(2,6-diisopropylphenylimino) pent-3-yl; L(tBu) = 2,2,6,6-tetramethyl-3,5-bis(2,6-diisopropylphenylimino)hept-4-yl) abstract hydrocarbyl groups from BR'(3) (R' = Et, Ph) to give L(R)FeR' and L(R)Fe(μ-H)(2)BR'(2). Mechanistic studies with R = R' = Me are consistent with a process in which the hyride dimer opens one Fe-H bond, and subsequent B-H bond formation is concerted with dissociation of an Fe-H unit. Cleavage of boron-carbon bonds is likely to proceed at least in part from transient quaternary borate anions. In a separate bond-breaking reaction, L(Me)Fe(μ-H)(2)BEt(2) reacts with N(2)H(4) to eject H(2) from the bridging hydrides and cleave the N-N bond in the diaminoborate complex L(Me)Fe(μ-NH(2))(2)BEt(2). These novel bond-breaking reactions are facilitated by the low coordination number at the iron(II) center.
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Affiliation(s)
- Ying Yu
- Department of Chemistry, University of Rochester, NY 14627
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10
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Mehn MP, Brown SD, Paine TK, Brennessel WW, Cramer CJ, Peters JC, Que L. High-spin and low-spin iron(ii) complexes with facially-coordinated borohydride ligands. Dalton Trans 2006:1347-51. [PMID: 16505914 DOI: 10.1039/b509580h] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rare examples of monometallic high-spin and low-spin L3Fe(H3BH) complexes have been characterized, where the two L3 ligands are [TpPh2] and [PhBP3] ([TpPh2] = [HB(3,5-Ph2pz)3]- and [PhBP3] = [PhB(CH2PPh2)3]-). The structures are reported wherein the borohydride ligand is facially coordinated to the iron center in each complex. Density functional methods have been employed to explain the bonding in these unusual iron(II) centers. Despite the differences in spin states, short Fe-B distances are observed in both complexes and there is significant theoretical evidence to support a substantial bonding interaction between the iron and boron nuclei. In light of this interaction, we suggest that these complexes can be described as (L3)Fe(eta4-H3BH) complexes.
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Affiliation(s)
- Mark P Mehn
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455, USA
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Poignant G, Nlate S, Guerchais V, Edwards AJ, Raithby PR. Synthesis and Properties of (η2-C,X) Chelate Arylcarbene Complexes [Fe(C5Me5)(L){η2-C(OMe)C6H4-o-X}][OTf] (L = CO, PMe3; X = OMe, Cl). Organometallics 1997. [DOI: 10.1021/om960711z] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Gao Y, Holah DG, Hughes AN, Spivak GJ, Havighurst MD, Magnuson VR, Polyakov V. Reactions of FeIII with LiAlH4 and LiBH4 in the presence of bis(diphenylphosphino)methane (dppm) and CO. The crystal and molecular structures of trans-[Fe(Cl)(CO)(η2-dppm)2] [FeCl4], trans-Fe(H)2(η2-dppm)2 and cis-[Fe(η2-S2CH(η2-dppm)2]BF4. Polyhedron 1997. [DOI: 10.1016/s0277-5387(97)00025-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Transition metal tetrahydroborato complexes: an orbital interaction analysis of their structure and bonding. Coord Chem Rev 1996. [DOI: 10.1016/s0010-8545(96)01254-4] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Nlate S, Guénot P, Sinbandhit S, Toupet L, Lapinte C, Guerchais V. Ein Carbeneisen-Chelatkomplex als Quelle für ein Ferraboranderivat. Angew Chem Int Ed Engl 1994. [DOI: 10.1002/ange.19941062121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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