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Yin ZB, Wu B, Wang GX, Wei J, Xi Z. Dinitrogen Functionalization Affording Chromium Diazenido and Side-on η 2-Hydrazido Complexes. J Am Chem Soc 2023; 145:7065-7070. [PMID: 36815758 DOI: 10.1021/jacs.3c00266] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Isolation of key intermediate complexes in dinitrogen functionalization is crucial for elucidating the mechanistic details and further investigation. Herein, the synthesis and characterization of (μ-η1:η1-N2)(η1-N2)-Cr(I) 3 and (η1-N2)2-Cr(0) complexes 4 supported by Cp* (Cp* = C5Me5) and NHC ligands were reported. Further functionalization of Cr(0)-N2 complex 4 with silyl halides delivered the key intermediates in the alternating pathway, the chromium diazenido complex 5 and the chromium side-on η2-hydrazido complex 6. Protonation of 6 led to the quantitative formation of N2H4. Moreover, the [η2-Me3SiNNSiMe3]2- unit in 6 enabled N-C bond formation reactions with CO2 and tBuNCO, giving the corresponding N,O-chelating hydrazidochromium complexes 7 and 8, respectively.
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Affiliation(s)
- Zhu-Bao Yin
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Botao Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Gao-Xiang Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Junnian Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai, 200032, China
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2
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Cena N, Peloquin AJ, Aristov MM, Carroll XB, Iacono ST, Boatz JA, Olmstead MM, Balch AL, Ghiassi KB. Variable hydrazine coordination modes from reactions with dichlorotris(triphenylphosphine)ruthenium(II). Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Suzuki S, Toda T, Kuwata S. A diazene-bridged diruthenium complex with structural restraint defined by single meta-diphosphinobenzene. Dalton Trans 2021; 50:4789-4795. [PMID: 33625422 DOI: 10.1039/d0dt04398b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Creation of confined coordination spaces with controlled flexibility is of importance in mimicking enzymatic reactions. We found that a simple, non-chelating 1,3-bis(diphenylphosphino)benzene (DPPBz) assembled two Cp*Ru units to give a dinuclear complex, wherein only one DPPBz supports an open framework without metal-metal bonding. Subsequent treatment with an excess of hydrazine resulted in formal 2e-/2H+ transfer from hydrazine to afford a diazene-bridged complex featuring intramolecular NHCl hydrogen bonds. In constrast, a monophosphine failed to stabilize the diazene-bridged dinuclear structure due to the lack of the enforcement of the conformation.
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Affiliation(s)
- Satoshi Suzuki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan.
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4
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Speelman AL, Skubi KL, Mercado BQ, Holland PL. Synthesis and Reactivity of Iron Complexes with a Biomimetic SCS Pincer Ligand. Inorg Chem 2021; 60:1965-1974. [PMID: 33443404 DOI: 10.1021/acs.inorgchem.0c03427] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent experimental evidence suggests that the FeMoco of nitrogenase undergoes structural rearrangement during N2 reduction, which may result in the generation of coordinatively unsaturated iron sites with two sulfur donors and a carbon donor. In an effort to synthesize and study small-molecule model complexes with a one-carbon/two-sulfur coordination environment, we have designed two new SCS pincer ligands containing a central NHC donor accompanied by thioether- or thiolate-functionalized aryl groups. Metalation of the thioether ligand with Fe(OTf)2 gives 6-coordinate complexes in which the SCS ligand binds meridionally. In contrast, metalation of the thiolate ligand with Fe(HMDS)2 gives a four-coordinate pseudotetrahedral amide complex in which the ligand binds facially, illustrating the potential structural flexibility of these ligands. Reaction of the amide complex with a bulky monothiol gives a four-coordinate complex with a one-carbon/three-sulfur coordination environment that resembles the resting state of nitrogenase. Reaction of the amide complex with phenylhydrazine gives a product with a rare κ1-bound phenylhydrazido group which undergoes N-N cleavage to give a phenylamido complex.
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Affiliation(s)
- Amy L Speelman
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Kazimer L Skubi
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Brandon Q Mercado
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Patrick L Holland
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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5
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Li J, Yang D, Tong P, Wang C, Wang B, Qu J. Thiolate-Bridged Dicobalt Complexes Bearing Hydrazine, Hydrazido, and Diazenido Ligands: Synthesis, Structural Characterization, and Interconversion. Inorg Chem 2020; 59:8203-8212. [PMID: 32496765 DOI: 10.1021/acs.inorgchem.0c00542] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Synthetic di- or multimetallic complexes bearing NxHy nitrogenous ligands in a sulfur-rich coordination environment have attracted considerable attention due to their importance in evaluating the complex mechanism of biological nitrogen fixation. Herein, we report a series of thiolate-bridged dicobalt NxHy species obtained by treatment of CoIIICoIII precursor with hydrazine and its substituted derivatives at ambient temperature. Remarkably, when the substituent is the cyclohexyl group, the resulting species can interconvert through different pathways. This Co2S2 skeleton provides a new model system for obtaining valuable information about the early N2Hx-bound intermediate species during the catalytic cycle of nitrogenase.
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Affiliation(s)
- Jianzhe Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Dawei Yang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Peng Tong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Chunlong Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China.,Key Laboratory for Advanced Materials, East China University of Science and Technology, Shanghai 200237, P. R. China
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6
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Lv L, Yu L, Qiu Z, Li C. Switch in Selectivity for Formal Hydroalkylation of 1,3‐Dienes and Enynes with Simple Hydrazones. Angew Chem Int Ed Engl 2020; 59:6466-6472. [PMID: 31972873 DOI: 10.1002/anie.201915875] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Leiyang Lv
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Lin Yu
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zihang Qiu
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
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7
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Lv L, Yu L, Qiu Z, Li C. Switch in Selectivity for Formal Hydroalkylation of 1,3‐Dienes and Enynes with Simple Hydrazones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915875] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Leiyang Lv
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Lin Yu
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Zihang Qiu
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry and FRQNT Center for Green Chemistry and CatalysisMcGill University 801 Sherbrooke Street West Montreal Quebec H3A 0B8 Canada
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Albertin G, Antoniutti S, Bortoluzzi M, Castro J. Preparation and crystal structure of the boranehydrazine complex [RuCl(κ1-NH2NH2BPh3){P(OEt)3}4]BPh4. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Labrum NS, Caulton KG. [Cr(pincer 2-)] 2 as an electron shuttle for reductively promoted hydrazine disproportionation. Dalton Trans 2019; 48:11642-11646. [PMID: 31310268 DOI: 10.1039/c9dt02300c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We describe here delivery of hydrazine to a reducing, low oxidation state chromium bound to a proton responsive ligand which has already been deprotonated. Reaction of PhHNNH2 at a 4 : 1 mole ratio with the bis-(pyrazolate)pyridyl pincer ligated reducing agent [CrIIL]2 gives prompt conversion to [CrL2(PhNH2)2(μ-PhHNN)], with release of NH3 and C6H6, a new disproportionation of the hydrazine, with trapping of PhHNN as its dianion, bridging the two chromium centers. The redox balance of the reaction is discussed, and participation by Brønsted basic sites on the bis-(pyrazolate)pyridyl pincer ligand L2- is suggested, but no hydrazine protons remain on the pincer in the product.
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10
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Li CC, Dai XJ, Wang H, Zhu D, Gao J, Li CJ. Iron-Catalyzed Nucleophilic Addition Reaction of Organic Carbanion Equivalents via Hydrazones. Org Lett 2018; 20:3801-3805. [PMID: 29911871 DOI: 10.1021/acs.orglett.8b01391] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Chen-Chen Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Xi-Jie Dai
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Haining Wang
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Dianhu Zhu
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Jian Gao
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FRQNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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11
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12
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Field LD, Hazari N, Li HL. Nitrogen fixation revisited on iron(0) dinitrogen phosphine complexes. Inorg Chem 2015; 54:4768-76. [PMID: 25945866 DOI: 10.1021/acs.inorgchem.5b00211] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A reinvestigation of the treatment of [Fe(N2)(PP)2] (PP = depe, dmpe) with acid revealed no ammonium formation. Instead, rapid protonation at the metal center to give hydride complexes was observed. Treatment of [Fe(N2)(dmpe)2] with methylating agents such as methyl triflate or methyl tosylate resulted in methylation of the metal center to afford [FeMe(N2)(dmpe)2](+). Treatment of [Fe(N2)(dmpe)2] with trimethylsilyl triflate, however, resulted in reaction at dinitrogen affording NH4(+) on subsequent treatment with acid. The side-on bound hydrazine complex [Fe(N2H4)(dmpe)2](2+) and bis(ammonia) complex [Fe(NH3)2(dmpe)2](2+) were identified by (15)N NMR spectroscopy as other species formed in the reaction mixture.
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Affiliation(s)
- Leslie D Field
- †School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Nilay Hazari
- ‡Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Hsiu L Li
- †School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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13
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Albertin G, Antoniutti S, Botter A, Castro J. Hydrazine complexes of ruthenium with cyclopentadienyl and indenyl ligands: Preparation and reactivity. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Köthe C, Braun B, Herwig C, Limberg C. Synthesis, Characterization, and Interconversion of β‐Diketiminato Nickel N
x
H
y
Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402812] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Claudia Köthe
- Institut für Chemie, Humboldt‐Universität zu Berlin, Brook‐Taylor‐Strasse 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/
| | - Beatrice Braun
- Institut für Chemie, Humboldt‐Universität zu Berlin, Brook‐Taylor‐Strasse 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/
| | - Christian Herwig
- Institut für Chemie, Humboldt‐Universität zu Berlin, Brook‐Taylor‐Strasse 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/
| | - Christian Limberg
- Institut für Chemie, Humboldt‐Universität zu Berlin, Brook‐Taylor‐Strasse 2, 12489 Berlin, Germany, http://www.chemie.hu‐berlin.de/aglimberg/
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15
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Fehler SK, Pratsch G, Heinrich MR. Phenyldiazene - abgefangen in Cycloadditionsreaktionen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Fehler SK, Pratsch G, Heinrich MR. The trapping of phenyldiazenes in cycloaddition reactions. Angew Chem Int Ed Engl 2014; 53:11361-5. [PMID: 25154799 DOI: 10.1002/anie.201406175] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Indexed: 11/06/2022]
Abstract
The reactivity of phenyldiazenes was studied intensively in the late 1960s, but not much is known about their behavior under acidic conditions. Based on the formation of phenyldiazenes from phenylazocarboxylates, we herein describe how reactions of phenyldiazenes can be directed into ionic or radical pathways. Cycloaddition reactions with furans leading to pyridazinium salts represent the first examples for the direct trapping of phenyldiazenes with conservation of the N=N moiety.
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Affiliation(s)
- Stefanie K Fehler
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schuhstrasse 19, 91052 Erlangen (Germany) http://www.medchem.uni-erlangen.de/heinrichlab/
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Field LD, Li HL, Dalgarno SJ, McIntosh RD. Base-Induced Dehydrogenation of Ruthenium Hydrazine Complexes. Inorg Chem 2013; 52:1570-83. [DOI: 10.1021/ic302449n] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leslie D. Field
- School of
Chemistry, University of New South Wales, NSW 2052, Australia
| | - Hsiu L. Li
- School of
Chemistry, University of New South Wales, NSW 2052, Australia
| | - Scott J. Dalgarno
- School of EPS-Chemistry, Heriot-Watt University, Edinburgh, Scotland, UK EH14 4AS
| | - Ruaraidh D. McIntosh
- School of EPS-Chemistry, Heriot-Watt University, Edinburgh, Scotland, UK EH14 4AS
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18
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Singh AK, Levine BG, Staples RJ, Odom AL. A 4-coordinate Ru(ii) imido: unusual geometry, synthesis, and reactivity. Chem Commun (Camb) 2013; 49:10799-801. [DOI: 10.1039/c3cc46596a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Köthe C, Metzinger R, Herwig C, Limberg C. Reductive Deprotonation and Dehydrogenation of Phenylhydrazine at a Nickel Center To Give a Nickel Diazenido Complex. Inorg Chem 2012; 51:9740-7. [DOI: 10.1021/ic301066x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Claudia Köthe
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489
Berlin, Germany
| | - Ramona Metzinger
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489
Berlin, Germany
| | - Christian Herwig
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489
Berlin, Germany
| | - Christian Limberg
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Str. 2, 12489
Berlin, Germany
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