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Lococciolo G, Gupta SK, Dechert S, Demeshko S, Duboc C, Atanasov M, Neese F, Meyer F. Oxygen-Donor Metalloligands Induce Slow Magnetization Relaxation in Zero Field for a Cobalt(II) Complex with {CoO 4} Motif. Inorg Chem 2024; 63:5652-5663. [PMID: 38470330 DOI: 10.1021/acs.inorgchem.4c00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Most 3d metal-based single-molecule magnets (SMMs) use N-ligands or ligands with even softer donors to impart a particular coordination geometry and increase the zero-field splitting parameter |D|, while complexes with hard O-donor ligands showing slow magnetization relaxation are rare. Here, we report that a diamagnetic NiII complex of a tetradentate ligand featuring two N-heterocyclic carbene and two alkoxide-O donors, [LO,ONi], can serve as a {O,O'}-chelating metalloligand to give a trinuclear complex [(LO,ONi)Co(LO,ONi)](OTf)2 (2) with an elongated tetrahedral {CoIIO4} core, D = -74.3 cm-1, and a spin reversal barrier Ueff = 86.9 cm-1 in the absence of an external dc field. The influence of diamagnetic NiII on the electronic structure of the {CoO4} unit in comparison to [Co(OPh)4]2- (A) has been probed with multireference ab initio calculations. These reveal a contrapolarizing effect of the NiII, which forms stronger metal-alkoxide bonds than the central CoII, inducing a change in ligand field splitting and a 5-fold increase in the magnetic anisotropy in 2 compared to A, with an easy magnetization axis along the Ni-Co-Ni vector. This demonstrates a strategy to enhance the SMM properties of 3d metal complexes with hard O-donors by modulating the ligand field character via the coordination of diamagnetic ions and the benefit of robust metalloligands in that regard.
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Affiliation(s)
- Giuseppe Lococciolo
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, Göttingen 37077, Germany
| | - Sandeep K Gupta
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, Göttingen 37077, Germany
| | - Sebastian Dechert
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, Göttingen 37077, Germany
| | - Serhiy Demeshko
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, Göttingen 37077, Germany
| | - Carole Duboc
- Université Grenoble Alpes, CNRS UMR 5250, DCM, Grenoble F-38000, France
| | - Mihail Atanasov
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Akad. Georgi Bontchev Street 11, Sofia 1113, Bulgaria
| | - Frank Neese
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, Göttingen 37077, Germany
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2
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Prakash O, Chábera P, Kaul N, Hlynsson VF, Rosemann NW, Losada IB, Hoang Hai YT, Huang P, Bendix J, Ericsson T, Häggström L, Gupta AK, Strand D, Yartsev A, Lomoth R, Persson P, Wärnmark K. How Rigidity and Conjugation of Bidentate Ligands Affect the Geometry and Photophysics of Iron N-Heterocyclic Complexes: A Comparative Study. Inorg Chem 2024; 63:4461-4473. [PMID: 38421802 PMCID: PMC10934811 DOI: 10.1021/acs.inorgchem.3c03972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
Two iron complexes featuring the bidentate, nonconjugated N-heterocyclic carbene (NHC) 1,1'-methylenebis(3-methylimidazol-2-ylidene) (mbmi) ligand, where the two NHC moieties are separated by a methylene bridge, have been synthesized to exploit the combined influence of geometric and electronic effects on the ground- and excited-state properties of homoleptic FeIII-hexa-NHC [Fe(mbmi)3](PF6)3 and heteroleptic FeII-tetra-NHC [Fe(mbmi)2(bpy)](PF6)2 (bpy = 2,2'-bipyridine) complexes. They are compared to the reported FeIII-hexa-NHC [Fe(btz)3](PF6)3 and FeII-tetra-NHC [Fe(btz)2(bpy)](PF6)2 complexes containing the conjugated, bidentate mesoionic NHC ligand 3,3'-dimethyl-1,1'-bis(p-tolyl)-4,4'-bis(1,2,3-triazol-5-ylidene) (btz). The observed geometries of [Fe(mbmi)3](PF6)3 and [Fe(mbmi)2(bpy)](PF6)2 are evaluated through L-Fe-L bond angles and ligand planarity and compared to those of [Fe(btz)3](PF6)3 and [Fe(btz)2(bpy)](PF6)2. The FeII/FeIII redox couples of [Fe(mbmi)3](PF6)3 (-0.38 V) and [Fe(mbmi)2(bpy)](PF6)2 (-0.057 V, both vs Fc+/0) are less reducing than [Fe(btz)3](PF6)3 and [Fe(btz)2(bpy)](PF6)2. The two complexes show intense absorption bands in the visible region: [Fe(mbmi)3](PF6)3 at 502 nm (ligand-to-metal charge transfer, 2LMCT) and [Fe(mbmi)2(bpy)](PF6)2 at 410 and 616 nm (metal-to-ligand charge transfer, 3MLCT). Lifetimes of 57.3 ps (2LMCT) for [Fe(mbmi)3](PF6)3 and 7.6 ps (3MLCT) for [Fe(mbmi)2(bpy)](PF6)2 were probed and are somewhat shorter than those for [Fe(btz)3](PF6)3 and [Fe(btz)2(bpy)](PF6)2. [Fe(mbmi)3](PF6)3 exhibits photoluminescence at 686 nm (2LMCT) in acetonitrile at room temperature with a quantum yield of (1.2 ± 0.1) × 10-4, compared to (3 ± 0.5) × 10-4 for [Fe(btz)3](PF6)3.
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Affiliation(s)
- Om Prakash
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Pavel Chábera
- Chemical
Physics Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Nidhi Kaul
- Department
of Chemistry − Ångström Laboratory, Uppsala University, Box
523, SE-751 20 Uppsala, Sweden
| | - Valtýr F. Hlynsson
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Nils W. Rosemann
- Chemical
Physics Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Iria Bolaño Losada
- Theoretical
Chemistry Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Yen Tran Hoang Hai
- Theoretical
Chemistry Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Ping Huang
- Department
of Chemistry − Ångström Laboratory, Uppsala University, Box
523, SE-751 20 Uppsala, Sweden
| | - Jesper Bendix
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Tore Ericsson
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Lennart Häggström
- Department
of Physics − Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Arvind Kumar Gupta
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Daniel Strand
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Arkady Yartsev
- Chemical
Physics Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Reiner Lomoth
- Department
of Chemistry − Ångström Laboratory, Uppsala University, Box
523, SE-751 20 Uppsala, Sweden
| | - Petter Persson
- Theoretical
Chemistry Division, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Kenneth Wärnmark
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
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3
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Yang W, Li X, Li SY, Li Q, Sun H, Li X. Synthesis of Bis(silylene) Iron Chlorides and Their Catalytic Activity for Dinitrogen Silylation. Inorg Chem 2023; 62:21014-21024. [PMID: 38095917 DOI: 10.1021/acs.inorgchem.3c02445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
In this study, three tetracoordinated bis(silylene) iron(II) chlorides, namely, [SiCHRSi]FeCl2 (1) (R = H), (2) (R = CH3), and (3) (R = Ph), were synthesized through the reactions of the three different bis(silylene) ligands [LSiCHRSiL] (L = PhC(NtBu)2, L1 (R = H), L2 (R = CH3), L3 (R = Ph)) with FeCl2·(THF)1.5 in THF. The bis(silylene) Fe complexes 1-3 could be used as effective catalysts for dinitrogen silylation, with complex 3 demonstrating the highest turnover number (TON) of 746 equiv among the three complexes. The catalytic mechanism was explored, revealing the involvement of the pentacoordinated bis(dinitrogen) iron(0) complexes [SiCHRSi]Fe(N2)2(THF), (4)-(6), as the active catalysts in the dinitrogen silylation reaction. Additionally, the cyclic silylene compound 10 was obtained from the reaction of L1 with KC8. Single-crystal X-ray diffraction analyses confirmed the molecular structures of complexes 1-3 and 10 in the solid state.
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Affiliation(s)
- Wenjing Yang
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
| | - Xiaomiao Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
| | - Sheng-Yong Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
| | - Qingshuang Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250100 Jinan, People's Republic of China
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4
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Thompson ES, Olivas EM, Torres A, Arreaga BC, Alarcon HL, Dolberry D, Brannon JP, Stieber SCE. Effect of methylene versus ethylene linkers on structural properties of tert-butyl and mesityl bis(imidazolium) bromide salts. Acta Crystallogr E Crystallogr Commun 2022; 78:905-911. [PMID: 36072516 PMCID: PMC9443804 DOI: 10.1107/s2056989022008003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022]
Abstract
The crystal structures of ligand precursor bis(imidaozolium) salts 1,1′-methylenebis(3-tert-butylimidazolium) dibromide monohydrate, C15H26N4+·2Br−·H2O or [tBuNHC2Me][Br]2·H2O, 1,1′-(ethane-1,2-diyl)bis(3-tert-butylimidazolium) dibromide dihydrate, C16H28N4+·2Br−·2H2O or [tBuNHC2Et][Br]2·2H2O, 1,1′-methylenebis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide dihydrate, C25H30N42+·2Br−·2H2O or [MesNHC2Me][Br]2·2H2O, and 1,1′-1,1′-(ethane-1,2-diyl)bis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide tetrahydrate, C26H32N42+·2Br−·4H2O or [MesNHC2Et][Br]2·4H2O, are reported. At 293 K, [tBuNHC2Me][Br]2·H2O crystallizes in the P21/c space group, while [tBuNHC2Et][Br]2·2H2O crystallizes in the P21/n space group at 100 K. At 112 K, [MesNHC2Me][Br]2·2H2O crystallizes in the orthorhombic space group Pccn while [MesNHC2Et][Br]2·4H2O crystallizes in the P21/c space group at 100 K. The crystal structures of ligand precursor bis(imidazolium) salts 1,1′-methylenebis(3-tert-butylimidazolium) dibromide monohydrate, C15H26N4+·2Br−·H2O or [tBuNHC2Me][Br]2·H2O, 1,1′-(ethane-1,2-diyl)bis(3-tert-butylimidazolium) dibromide dihydrate, C16H28N4+·2Br−·2H2O or [tBuNHC2Et][Br]2·2H2O, 1,1′-methylenebis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide dihydrate, C25H30N42+·2Br−·2H2O or [MesNHC2Me][Br]2·2H2O, and 1,1′-(ethane-1,2-diyl)bis[3-(2,4,6-trimethylphenyl)imidazolium] dibromide tetrahydrate, C26H32N42+·2Br−·4H2O or [MesNHC2Et][Br]2·4H2O, are reported. At 293 K, [tBuNHC2Me][Br]2·H2O crystallizes in the P21/c space group, while [tBuNHC2Et][Br]2·2H2O crystallizes in the P21/n space group at 100 K. At 112 K, [MesNHC2Me][Br]2·2H2O crystallizes in the orthorhombic space group Pccn while [MesNHC2Et][Br]2·4H2O crystallizes in the P21/c space group at 100 K. Bond distances and angles within the imidazolium rings are generally comparable among the four structures. All four bis(imidazolium) salts co-crystallize with one to four molecules of water.
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5
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Zámbó GG, Schlagintweit JF, Reich RM, Kühn FE. Organometallic 3d transition metal NHC complexes in oxidation catalysis. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00127f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of processes for the selective oxidation of hydrocarbons is a major focus in catalysis research. Making this process simultaneously environmentally friendly is still challenging. 3d transition metals are...
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6
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Ye Z, Yang Z, Yang C, Huang M, Xu X, Ke Z. Disarming the alkoxide trap to access a practical FeCl 3 system for borrowing-hydrogen N-alkylation. Org Chem Front 2022. [DOI: 10.1039/d2qo00825d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Disarming the alkoxide trap using an in situ reduction strategy to access a practical FeCl3 and N-heterocyclic carbene system for borrowing-hydrogen N-alkylation.
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Affiliation(s)
- Zongren Ye
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Zhenjie Yang
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Chenhui Yang
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Ming Huang
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
- School of Clinical Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. China
| | - Xianfang Xu
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, School of Chemistry, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, P. R. China
- Guangdong Provincial Key Laboratory of Optical Chemicals, XinHuaYue Group, Maoming, 525000, P.R. China
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7
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Neshat A, Mastrorilli P, Mousavizadeh Mobarakeh A. Recent Advances in Catalysis Involving Bidentate N-Heterocyclic Carbene Ligands. Molecules 2021; 27:95. [PMID: 35011327 PMCID: PMC8746573 DOI: 10.3390/molecules27010095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/02/2021] [Accepted: 12/13/2021] [Indexed: 11/17/2022] Open
Abstract
Since the discovery of persistent carbenes by the isolation of 1,3-di-l-adamantylimidazol-2-ylidene by Arduengo and coworkers, we witnessed a fast growth in the design and applications of this class of ligands and their metal complexes. Modular synthesis and ease of electronic and steric adjustability made this class of sigma donors highly popular among chemists. While the nature of the metal-carbon bond in transition metal complexes bearing N-heterocyclic carbenes (NHCs) is predominantly considered to be neutral sigma or dative bonds, the strength of the bond is highly dependent on the energy match between the highest occupied molecular orbital (HOMO) of the NHC ligand and that of the metal ion. Because of their versatility, the coordination chemistry of NHC ligands with was explored with almost all transition metal ions. Other than the transition metals, NHCs are also capable of establishing a chemical bond with the main group elements. The advances in the catalytic applications of the NHC ligands linked with a second tether are discussed. For clarity, more frequently targeted catalytic reactions are considered first. Carbon-carbon coupling reactions, transfer hydrogenation of alkenes and carbonyl compounds, ketone hydrosilylation, and chiral catalysis are among highly popular reactions. Areas where the efficacy of the NHC based catalytic systems were explored to a lesser extent include CO2 reduction, C-H borylation, alkyl amination, and hydroamination reactions. Furthermore, the synthesis and applications of transition metal complexes are covered.
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Affiliation(s)
- Abdollah Neshat
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
| | - Piero Mastrorilli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica, Politecnico di Bari, Via Orabona, I-70125 Bari, Italy;
| | - Ali Mousavizadeh Mobarakeh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
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8
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Schwarz N, Sun X, Yadav R, Köppe R, Simler T, Roesky PW. Application of the Redox-Transmetalation Procedure to Access Divalent Lanthanide and Alkaline-Earth NHC Complexes*. Chemistry 2021; 27:12857-12865. [PMID: 34165229 PMCID: PMC8518399 DOI: 10.1002/chem.202101923] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Indexed: 11/10/2022]
Abstract
Divalent lanthanide and alkaline-earth complexes supported by N-heterocyclic carbene (NHC) ligands have been accessed by redox-transmetalation between air-stable NHC-AgI complexes and the corresponding metals. By using the small ligand 1,3-dimethylimidazol-2-ylidene (IMe), two series of isostructural complexes were obtained: the tetra-NHC complexes [LnI2 (IMe)4 ] (Ln=Eu and Sm) and the bis-NHC complexes [MI2 (IMe)2 (THF)2 ] (M=Yb, Ca and Sr). In the former, distortions in the NHC coordination were found to originate from intermolecular repulsions in the solid state. Application of the redox-transmetalation strategy with the bulkier 1,3-dimesitylimidazol-2-ylidene (IMes) ligand yielded [SrI2 (IMes)(THF)3 ], while using a similar procedure with Ca metal led to [CaI2 (THF)4 ] and uncoordinated IMes. DFT calculations were performed to rationalise the selective formation of the bis-NHC adduct in [SrI2 (IMe)2 (THF)2 ] and the tetra-NHC adduct in [SmI2 (IMe)4 ]. Since the results in the gas phase point towards preferential formation of the tetra-NHC complexes for both metal centres, the differences between both arrangements are a result of solid-state effects such as slightly different packing forces.
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Affiliation(s)
- Noah Schwarz
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Xiaofei Sun
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Ravi Yadav
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Ralf Köppe
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
| | - Thomas Simler
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
- Laboratoire de Chimie Moléculaire (LCM) CNRS, École PolytechniqueInstitut Polytechnique de Paris91120PalaiseauFrance
| | - Peter W. Roesky
- Institute of Inorganic ChemistryKarlsruhe Institute of Technology (KIT)Engesserstraße 1576131KarlsruheGermany
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9
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Cui H, Hu ZB, Chen C, Ruan H, Fang Y, Zhang L, Zhao Y, Tan G, Song Y, Wang X. A high-spin diradical dianion and its bridged chemically switchable single-molecule magnet. Chem Sci 2021; 12:9998-10004. [PMID: 34377394 PMCID: PMC8317668 DOI: 10.1039/d1sc01932e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/21/2021] [Indexed: 11/21/2022] Open
Abstract
Triplet diradicals have attracted tremendous attention due to their promising application in organic spintronics, organic magnets and spin filters. However, very few examples of triplet diradicals with singlet–triplet energy gaps (ΔEST) over 0.59 kcal mol−1 (298 K) have been reported to date. In this work, we first proved that the dianion of 2,7-di-tert-butyl-pyrene-4,5,9,10-tetraone (2,7-tBu2-PTO) was a triplet ground state diradical in the magnesium complex 1 with a singlet–triplet energy gap ΔEST = 0.94 kcal mol−1 (473 K). This is a rare example of stable diradicals with singlet–triplet energy gaps exceeding the thermal energy at room temperature (298 K). Moreover, the iron analog 2 containing the 2,7-tBu2-PTO diradical dianion was isolated, which was the first single-molecule magnet bridged by a diradical dianion. When 2 was doubly reduced to the dianion salt 2K2, single-molecule magnetism was switched off, highlighting the importance of diradicals in single-molecule magnetism. We report a triplet diradical dianion in magnesium complex with ΔEST = 0.94 kcal mol−1 (473 K). Its iron analog is the first single-molecule magnet bridged by a diradical dianion, and the SMM property is switched off through two-electron reduction.![]()
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Affiliation(s)
- Haiyan Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China .,Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University Nanjing 210095 China
| | - Zhao-Bo Hu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Chao Chen
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Huapeng Ruan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Yong Fang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Li Zhang
- Center of Materials Science and Engineering, Guangxi University of Science and Technology Liuzhou 545006 China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Gengwen Tan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - You Song
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
| | - Xinping Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China
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Adak L, Hatakeyama T, Nakamura M. Iron-Catalyzed Cross-Coupling Reactions Tuned by Bulky Ortho-Phenylene Bisphosphine Ligands. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laksmikanta Adak
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Takuji Hatakeyama
- Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Masaharu Nakamura
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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11
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Tuning the structure of mercury (II) complexes as antibacterial agents by varying the halogen atoms (Cl and Br) and extending the spacer length of the imidazole-2-thione ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
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Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
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13
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He Z, Xue X, Liu Y, Yu N, Krogman JP. Aminolysis of bis[bis(trimethylsilyl)amido]-manganese, -iron, and -cobalt for the synthesis of mono- and bis-silylene complexes. Dalton Trans 2020; 49:12586-12591. [PMID: 32856683 DOI: 10.1039/d0dt00570c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a method for the synthesis of amidinate stabilized silylene (NHSi) metal-halide complexes from M{N(SiMe3)2}2 (M = Mn, Fe, Co). The reported reactions can be used to make mono-silylene or bis-silylene complexes and the resulting products can be easily controlled by the reaction stoichiometry. Additionally, we apply this new synthetic protocol for the synthesis of a bis-iron complex derived from a bis-amidinate ligand having a terphenyl backbone.
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Affiliation(s)
- Zhiyuan He
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. and Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaolian Xue
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Yilan Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Na Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Jeremy P Krogman
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
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14
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Mühlen C, Linde J, Rakers L, Tan TTY, Kampert F, Glorius F, Hahn FE. Synthesis of Iron(0) Complexes Bearing Protic NHC Ligands: Synthesis and Catalytic Activity. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00260] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Christoph Mühlen
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28-30, 48149 Münster, Germany
| | - Jenny Linde
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28-30, 48149 Münster, Germany
| | - Lena Rakers
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Tristan T. Y. Tan
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28-30, 48149 Münster, Germany
| | - Florian Kampert
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28-30, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - F. Ekkehardt Hahn
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28-30, 48149 Münster, Germany
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15
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Kumar S. Recent Advances in the Schiff Bases and
N
‐Heterocyclic Carbenes as Ligands in the Cross‐Coupling Reactions: A Comprehensive Review. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3504] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sumit Kumar
- Department of Chemistry Central University of Haryana Jant‐Pali Mahendergarh 123031 India
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16
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Liu L, Lee W, Yuan M, Gutierrez O. Mechanisms of Bisphosphine Iron-Catalyzed C(SP2)-C(SP3) Cross-Coupling Reactions: Inner-Sphere or Outer-Sphere Arylation? COMMENT INORG CHEM 2018. [DOI: 10.1080/02603594.2018.1539392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lei Liu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA
| | - Wes Lee
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA
| | - Mingbin Yuan
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA
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17
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Pradeep T, Velusamy M, Mayilmurugan R. Novel iron(II)-N-heterocyclic carbene catalysts for efficient transfer hydrogenations under mild condition. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.08.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Elpitiya GR, Malbrecht BJ, Jenkins DM. A Chromium(II) Tetracarbene Complex Allows Unprecedented Oxidative Group Transfer. Inorg Chem 2017; 56:14101-14110. [DOI: 10.1021/acs.inorgchem.7b02253] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Gaya R. Elpitiya
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Brian J. Malbrecht
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - David M. Jenkins
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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19
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Charra V, de Frémont P, Braunstein P. Multidentate N-heterocyclic carbene complexes of the 3d metals: Synthesis, structure, reactivity and catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Schneider H, Schmidt D, Eichhöfer A, Radius M, Weigend F, Radius U. Synthesis and Reactivity of NHC‐Stabilized Iron(II)–Mesityl Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Heidi Schneider
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - David Schmidt
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Andreas Eichhöfer
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
| | - Michael Radius
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Florian Weigend
- Institut für Nanotechnologie Karlsruher Institut für Technologie (KIT) Campus Nord, Hermann‐von‐Helmholtz‐Platz 1 76344 Eggenstein‐Leopoldshafen Germany
- Institut für Physikalische Chemie Karlsruher Institut für Technologie (KIT) Campus Süd, Kaiserstraße 12 76131 Karlsruhe Germany
| | - Udo Radius
- Institut für Anorganische Chemie Julius‐Maximilians‐Universität Würzburg Am Hubland 97074 Würzburg Germany
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21
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Matsubara Y, Yamaguchi T, Hashimoto T, Yamaguchi Y. Iron(II) bipyridine complexes for the cross-coupling reaction of bromocyclohexane with phenylmagnesium bromide. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.02.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Luecke MP, Porwal D, Kostenko A, Zhou YP, Yao S, Keck M, Limberg C, Oestreich M, Driess M. Bis(silylenyl)-substituted ferrocene-stabilized η6-arene iron(0) complexes: synthesis, structure and catalytic application. Dalton Trans 2017; 46:16412-16418. [DOI: 10.1039/c7dt03301j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The synthesis of the first ferrocene bis(NHSi)-stabilized iron(arene) complexes and their application in the catalytic hydrogenation of ketones is reported.
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Affiliation(s)
- Marcel-Philip Luecke
- Department of Chemistry: Metalorganics and Inorganic Materials
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Digvijay Porwal
- Department of Chemistry: Synthesis and catalysis
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Arseni Kostenko
- Department of Chemistry: Metalorganics and Inorganic Materials
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Yu-Peng Zhou
- Department of Chemistry: Metalorganics and Inorganic Materials
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Shenglai Yao
- Department of Chemistry: Metalorganics and Inorganic Materials
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Matthias Keck
- Department of Chemistry: Coordination chemistry and catalysis
- Humboldt-Universität zu Berlin
- D-12489 Berlin
- Germany
| | - Christian Limberg
- Department of Chemistry: Coordination chemistry and catalysis
- Humboldt-Universität zu Berlin
- D-12489 Berlin
- Germany
| | - Martin Oestreich
- Department of Chemistry: Synthesis and catalysis
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials
- Technische Universität Berlin
- D-10623 Berlin
- Germany
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23
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Ouyang Z, Cheng J, Li L, Bao X, Deng L. High-Spin Iron(I) and Iron(0) Dinitrogen Complexes Supported by N-Heterocyclic Carbene Ligands. Chemistry 2016; 22:14162-5. [DOI: 10.1002/chem.201603390] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Zhenwu Ouyang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Jun Cheng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Lingling Li
- Instrumental Analysis Center; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Xiaoli Bao
- Instrumental Analysis Center; Shanghai Jiao Tong University; 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Liang Deng
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
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24
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Hickey AK, Lee WT, Chen CH, Pink M, Smith JM. A Bidentate Carbene Ligand Stabilizes a Low-Coordinate Iron(0) Carbonyl Complex. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00599] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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
| | - Wei-Tsung Lee
- 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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25
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Pinto MF, Cardoso BDP, Barroso S, Martins AM, Royo B. Chelating bis-N-heterocyclic carbene complexes of iron(ii) containing bipyridyl ligands as catalyst precursors for oxidation of alcohols. Dalton Trans 2016; 45:13541-6. [PMID: 27506414 DOI: 10.1039/c6dt02718k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Chelating bis-N-heterocyclic carbene (bis-NHC) complexes of iron(ii) containing pyridyl ligands have been prepared by the reaction of [FeCl2L] [L = bipy (1), phen (2)] with [LiN(SiMe3)2] and a bis(imidazolium) salt. The [Fe(bis-NHC)L(I)2] complexes were active pre-catalysts in the oxidation of 1-phenylethanol with tert-butyl hydroperoxide in neat conditions, affording a quantitative yield of acetophenone in 4.5 h. The catalyst could be reused up to six cycles giving a turnover number (TON) of 1500. Various secondary alcohols, both aromatic and aliphatic were selectivity oxidised to the corresponding ketones in excellent yields. Compound 1 is stable in acetonitrile solution for ca. 4 h, although after 16 h, it evolves to a mixture of [Fe(bis-NHC)(bipy)2]I2 (3), [Fe(bipy)3](2+) and bis-imidazolium salt. The molecular structure of 3 has been determined by X-ray diffraction studies.
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Affiliation(s)
- Mara F Pinto
- Instituto de Tecnologia Química e Biológica António Xavier, ITQB, Av. da República, EAN, 2780-157 Oeiras, Portugal.
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26
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Guérinot A, Cossy J. Iron-Catalyzed C-C Cross-Couplings Using Organometallics. Top Curr Chem (Cham) 2016; 374:49. [PMID: 27573401 DOI: 10.1007/s41061-016-0047-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/20/2016] [Indexed: 01/15/2023]
Abstract
Over the last decades, iron-catalyzed cross-couplings have emerged as an important tool for the formation of C-C bonds. A wide variety of alkenyl, aryl, and alkyl (pseudo)halides have been coupled to organometallic reagents, the most currently used being Grignard reagents. Particular attention has been devoted to the development of iron catalysts for the functionalization of alkyl halides that are generally challenging substrates in classical cross-couplings. The high functional group tolerance of iron-catalyzed cross-couplings has encouraged organic chemists to use them in the synthesis of bioactive compounds. Even if some points remain obscure, numerous studies have been carried out to investigate the mechanism of iron-catalyzed cross-coupling and several hypotheses have been proposed.
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Affiliation(s)
- Amandine Guérinot
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231, ESPCI Paris/CNRS/PSL* Research Institute, 10 rue Vauquelin, 75231, Paris Cedex 05, France.
| | - Janine Cossy
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231, ESPCI Paris/CNRS/PSL* Research Institute, 10 rue Vauquelin, 75231, Paris Cedex 05, France
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27
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Bauer M, Premužić D, Thiele G, Neumüller B, Tonner R, Raya-Barón Á, Fernández I, Kuzu I. Advanced NMR Methods and DFT Calculations on the Regioselective Deprotonation and Functionalization of 1,1′-Methylenebis(3-methylimidazole-2-thione). Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600323] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mona Bauer
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Dejan Premužić
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Günther Thiele
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Bernhard Neumüller
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Ralf Tonner
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
| | - Álvaro Raya-Barón
- Department of Chemistry and Physics; Laboratory of Organic Chemistry; University of Almería; Ctra. Sacramento s/n 04120 Almería Spain
| | - Ignacio Fernández
- Department of Chemistry and Physics; Laboratory of Organic Chemistry; University of Almería; Ctra. Sacramento s/n 04120 Almería Spain
- BITAL; Research Centre for Agricultural and Food Biotechnology; Almería Spain
| | - Istemi Kuzu
- Philipps-Universität Marburg; Fachbereich Chemie; Hans-Meerwein-Straße 4 35032 Marburg Germany
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28
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Liao JL, Chi Y, Wang JY, Chen ZN, Tsai ZH, Hung WY, Tseng MR, Lee GH. Pt(II) Phosphors Featuring Both Dicarbene and Functional Biazolate Chelates: Synthesis, Luminescent Properties, and Applications in Organic Light-Emitting Diodes. Inorg Chem 2016; 55:6394-404. [DOI: 10.1021/acs.inorgchem.6b00097] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jia-Ling Liao
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jin-Yun Wang
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zhong-Ning Chen
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zheng-Hua Tsai
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Wen-Yi Hung
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Meu-Rurng Tseng
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
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29
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Affiliation(s)
- Julien Legros
- Normandie Université COBRA UMR 6014 Université Rouen INSA Rouen and CNRS 1 rue Lucien Tesnière 76821 Mont-Saint-Aignan France
| | - Bruno Figadère
- CNRS BioCIS UMR 8076 Labex LERMIT Université Paris Sud and CNRS 5 rue J. B. Clément 92296 Châtenay-Malabry France
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30
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Ouyang Z, Meng Y, Cheng J, Xiao J, Gao S, Deng L. Three- and Four-Coordinate Homoleptic Iron(I)–NHC Complexes: Synthesis and Characterization. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhenwu Ouyang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yinshan Meng
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory of
Rare Earth Materials Chemistry and Applications, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jun Cheng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jie Xiao
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Song Gao
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory of
Rare Earth Materials Chemistry and Applications, College of Chemistry
and Molecular Engineering, Peking University, Beijing 100871, China
| | - Liang Deng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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31
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Chandrachud PP, Bass HM, Jenkins DM. Synthesis of Fully Aliphatic Aziridines with a Macrocyclic Tetracarbene Iron Catalyst. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00066] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Preeti P. Chandrachud
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Heather M. Bass
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - David M. Jenkins
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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32
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Liang Q, Janes T, Gjergji X, Song D. Iron complexes of a bidentate picolyl-NHC ligand: synthesis, structure and reactivity. Dalton Trans 2016; 45:13872-80. [DOI: 10.1039/c6dt02792j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Reversible deprotonation–reprotonation of a bidentate picolyl-NHC ligand on Fe(ii).
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Affiliation(s)
- Qiuming Liang
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Trevor Janes
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Xhoana Gjergji
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
| | - Datong Song
- Davenport Chemical Research Laboratories
- Department of Chemistry
- University of Toronto
- Toronto
- Canada
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33
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Weiss DT, Anneser MR, Haslinger S, Pöthig A, Cokoja M, Basset JM, Kühn FE. NHC Versus Pyridine: How “Teeth” Change the Redox Behavior of Iron(II) Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00732] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel T. Weiss
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Markus R. Anneser
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Stefan Haslinger
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Alexander Pöthig
- Catalysis
Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße
1, D-85747 Garching
bei München, Germany
| | - Mirza Cokoja
- Chair of Inorganic & Organometallic Chemistry, Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Jean-Marie Basset
- KAUST
Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Fritz E. Kühn
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
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34
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Przyojski JA, Veggeberg KP, Arman HD, Tonzetich ZJ. Mechanistic Studies of Catalytic Carbon–Carbon Cross-Coupling by Well-Defined Iron NHC Complexes. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01445] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacob A. Przyojski
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Kevin P. Veggeberg
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi D. Arman
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Zachary J. Tonzetich
- Department of Chemistry, University of Texas at San Antonio, San Antonio, Texas 78249, United States
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35
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36
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Juarez RA, Lee WT, Smith JM, Wang H. Computational evaluation of tris(carbene)borate donor properties in {NiNO}(10) complexes. Dalton Trans 2015; 43:14689-95. [PMID: 25142086 DOI: 10.1039/c4dt01426j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Electronic structure calculations are performed to characterise the structures, energies, and spectroscopic data for a series of four-coordinate tris(carbene)borate {NiNO}(10) complexes. There is excellent agreement between the computational and experimental results for known complexes, allowing for structure-function relationships to be delineated. Calculations that provide insights into the synthetic accessibility of nickel(iv) nitrides by oxygen atom abstraction from these complexes are also reported.
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Affiliation(s)
- Ruth A Juarez
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
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37
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Wang X, Zhang J, Wang L, Deng L. High-Spin Iron(II) Alkynyl Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Characterization, and Reactivity Study. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00028] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaojie Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China, 200032
| | - Jia Zhang
- State Key Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China, 200032
| | - Lei Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China, 200032
| | - Liang Deng
- State Key Laboratory of Organometallic Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China, 200032
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38
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Klawitter I, Anneser MR, Dechert S, Meyer S, Demeshko S, Haslinger S, Pöthig A, Kühn FE, Meyer F. Iron Complexes of a Macrocyclic N-Heterocyclic Carbene/Pyridine Hybrid Ligand. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00103] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Iris Klawitter
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstraße
4, D-37077 Göttingen, Germany
| | - Markus R. Anneser
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching bei München, Germany
| | - Sebastian Dechert
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstraße
4, D-37077 Göttingen, Germany
| | - Steffen Meyer
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstraße
4, D-37077 Göttingen, Germany
| | - Serhiy Demeshko
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstraße
4, D-37077 Göttingen, Germany
| | - Stefan Haslinger
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching bei München, Germany
| | - Alexander Pöthig
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching bei München, Germany
| | - Fritz E. Kühn
- Chair
of Inorganic Chemistry/Molecular Catalysis, Department of Chemistry
and Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching bei München, Germany
| | - Franc Meyer
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstraße
4, D-37077 Göttingen, Germany
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39
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Liu Y, Luo L, Xiao J, Wang L, Song Y, Qu J, Luo Y, Deng L. Four-Coordinate Iron(II) Diaryl Compounds with Monodentate N-Heterocyclic Carbene Ligation: Synthesis, Characterization, and Their Tetrahedral-Square Planar Isomerization in Solution. Inorg Chem 2015; 54:4752-60. [PMID: 25822256 DOI: 10.1021/acs.inorgchem.5b00138] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The salt elimination reactions of (IPr2Me2)2FeCl2 (IPr2Me2 = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) with the corresponding aryl Grignard reagents afford [(IPr2Me2)2FeAr2] (Ar = Ph, 3; C6H4-p-Me, 4; C6H4-p-(t)Bu, 5; C6H3-3,5-(CF3)2, 6) in good yields. X-ray crystallographic studies revealed the presence of both tetrahedral and trans square planar isomers for 3 and 6 and the tetrahedral structures for 4 and 5. Magnetic susceptibility and (57)Fe Mössbauer spectrum measurements on the solid samples indicated the high-spin (S = 2) and intermediate-spin (S = 1) nature of the tetrahedral and square planar structures, respectively. Solution property studies, including solution magnetic susceptibility measurement, variable-temperature (1)H and (19)F NMR, and absorption spectroscopy, on 3-6, as well as an (57)Fe Mössbauer spectrum study on a frozen tetrahydrofuran solution of tetrahedral [(IPr2Me2)2(57)FePh2] suggest the coexistence of tetrahedral and trans square planar structures in solution phase. Density functional theory calculations on (IPr2Me2)2FePh2 disclosed that the tetrahedral and trans square planar isomers are close in energy and that the geometry isomerization can occur by spin-change-coupled geometric transformation on four-coordinate iron(II) center.
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Affiliation(s)
- Yuesheng Liu
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - Lun Luo
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Jie Xiao
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - Lei Wang
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
| | - You Song
- ∥State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China, 210093
| | - Jingping Qu
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Yi Luo
- ‡State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, People's Republic of China, 116024
| | - Liang Deng
- †State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People's Republic of China, 200032
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40
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Schroeder H, Buback J, Demeshko S, Matyjaszewski K, Meyer F, Buback M. Speciation Analysis in Iron-Mediated ATRP Studied via FT-Near-IR and Mössbauer Spectroscopy. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hendrik Schroeder
- Center for Macromolecular Engineering,
Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Johannes Buback
- Center for Macromolecular Engineering,
Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
| | | | - Krzysztof Matyjaszewski
- Center for Macromolecular Engineering,
Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
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41
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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42
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Liu Y, Xiao J, Wang L, Song Y, Deng L. Carbon–Carbon Bond Formation Reactivity of a Four-Coordinate NHC-Supported Iron(II) Phenyl Compound. Organometallics 2015. [DOI: 10.1021/om501061b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuesheng Liu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
| | - Jie Xiao
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
| | - Lei Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
| | - You Song
- State
Key Laboratory of Coordination Chemistry, School of Chemistry and
Chemical Engineering, Nanjing University, Nanjing, People’s Republic of China 210093
| | - Liang Deng
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, People’s Republic of China 200032
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43
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Chan CY, Barnard PJ. Rhenium complexes of bidentate, bis-bidentate and tridentate N-heterocyclic carbene ligands. Dalton Trans 2015; 44:19126-40. [DOI: 10.1039/c5dt03295d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Rhenium(i) tricarbonyl complexes of a range of bidentate, bis-bidentate and tridentate NHC ligands have been prepared. These NHC ligands are of interest for possible applications in the development of Tc-99m or Re-186/188 radiopharmaceuticals and the stability of two complexes were evaluated in ligand challenge experiments using the metal binding amino acids l-histidine or l-cysteine.
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Affiliation(s)
- Chung Ying Chan
- Department of Chemistry and Physics
- La Trobe Institute for Molecular Science
- La Trobe University
- Victoria
- Australia
| | - Peter J. Barnard
- Department of Chemistry and Physics
- La Trobe Institute for Molecular Science
- La Trobe University
- Victoria
- Australia
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44
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45
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Suzuki T, Matsumoto J, Kajita Y, Inomata T, Ozawa T, Masuda H. Nitrosyl and carbene iron complexes bearing a κ3-SNS thioamide pincer type ligand. Dalton Trans 2015; 44:1017-22. [DOI: 10.1039/c4dt03128h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The monochelate iron complex with κ3-SNS thioamide pincer ligand, [Fe(THF)2(κ3-LDPM)], gave novel complexes, [Fe(NHC)(κ3-LDPM)] and [Fe(NO)2(κ3-LDPM)], by substitution reactions with N heterocyclic carbene and NO molecules, respectively.
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Affiliation(s)
- Tatsuya Suzuki
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Jun Matsumoto
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Yuji Kajita
- Department of Applied Chemistry
- Aichi Institute of Technology
- Yakusa-cho
- Japan
| | - Tomohiko Inomata
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Tomohiro Ozawa
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
| | - Hideki Masuda
- Department of Frontier Materials
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya 466-8555
- Japan
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46
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Kawamura S, Agata R, Nakamura M. Regio- and stereoselective multisubstituted olefin synthesis via hydro/carboalumination of alkynes and subsequent iron-catalysed cross-coupling reaction with alkyl halides. Org Chem Front 2015. [DOI: 10.1039/c5qo00147a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new synthetic route towards multisubstituted olefins was developed based on the direct cross coupling of alkenyl aluminium reagents, prepared by hydro- and carboalumination, with alkyl halides in the presence of an iron catalyst.
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Affiliation(s)
- Shintaro Kawamura
- International Research Center for Elements Science (IRCELS)
- Institute for Chemical Research (ICR)
- Kyoto University
- Kyoto
- Japan
| | - Ryosuke Agata
- International Research Center for Elements Science (IRCELS)
- Institute for Chemical Research (ICR)
- Kyoto University
- Kyoto
- Japan
| | - Masaharu Nakamura
- International Research Center for Elements Science (IRCELS)
- Institute for Chemical Research (ICR)
- Kyoto University
- Kyoto
- Japan
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47
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Liu YZ, Wang J, Zhao Y, Chen L, Chen XT, Xue ZL. Four-coordinate Co(ii) and Fe(ii) complexes with bis(N-heterocyclic carbene)borate and their magnetic properties. Dalton Trans 2015; 44:908-11. [DOI: 10.1039/c4dt02537g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Both square planar and tetrahedral isomers of the four-coordinate Co(ii) complex with a bis(N-heterocyclic carbene)borate ligand were isolated while only a tetrahedral configuration was found for the Fe(ii) analogue.
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Affiliation(s)
- Yuan-Zhong Liu
- State Key Laboratory of Coordination Chemistry
- Nanjing National Laboratory of Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jing Wang
- State Key Laboratory of Coordination Chemistry
- Nanjing National Laboratory of Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry
- Nanjing National Laboratory of Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Lei Chen
- State Key Laboratory of Coordination Chemistry
- Nanjing National Laboratory of Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Xue-Tai Chen
- State Key Laboratory of Coordination Chemistry
- Nanjing National Laboratory of Microstructures
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Zi-Ling Xue
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
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48
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Cardoso JM, Lopes R, Royo B. Dehydrogenative silylation of alcohols catalysed by half-sandwich iron N-heterocyclic carbene complexes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.06.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Gallego D, Inoue S, Blom B, Driess M. Highly Electron-Rich Pincer-Type Iron Complexes Bearing Innocent Bis(metallylene)pyridine Ligands: Syntheses, Structures, and Catalytic Activity. Organometallics 2014. [DOI: 10.1021/om500966t] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daniel Gallego
- Department of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Shigeyoshi Inoue
- Department of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Burgert Blom
- Department of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Matthias Driess
- Department of Chemistry:
Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
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50
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Rieb J, Raba A, Haslinger S, Kaspar M, Pöthig A, Cokoja M, Basset JM, Kühn FE. Synthesis, Characterization, and Reactivity of Furan- and Thiophene-Functionalized Bis(N-heterocyclic carbene) Complexes of Iron(II). Inorg Chem 2014; 53:9598-606. [DOI: 10.1021/ic500959m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Julia Rieb
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Andreas Raba
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Stefan Haslinger
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Manuel Kaspar
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Alexander Pöthig
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Mirza Cokoja
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
| | - Jean-Marie Basset
- Catalysis
Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Fritz E. Kühn
- Chair
of Inorganic Chemistry/Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747 Garching, Germany
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