1
|
Guddorf BJ, Feldt M, Hepp A, Daniliuc CG, Lips F. Reactivity of an NHC-Coordinated Trisilacyclopropylidene with Transition Metal Carbonyl Compounds. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benedikt J. Guddorf
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, D-48149 Münster, Deutschland
| | - Milica Feldt
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, D-48149 Münster, Deutschland
| | - Alexander Hepp
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, D-48149 Münster, Deutschland
| | - Constantin G. Daniliuc
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation, Corrensstraße 36, D-48149 Münster, Deutschland
| | - Felicitas Lips
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28-30, D-48149 Münster, Deutschland
| |
Collapse
|
2
|
Romain C, Bellemin-Laponnaz S, Dagorne S. Recent progress on NHC-stabilized early transition metal (group 3–7) complexes: Synthesis and applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213411] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
3
|
Krahfuß MJ, Nitsch J, Bickelhaupt FM, Marder TB, Radius U. N-Heterocyclic Silylenes as Ligands in Transition Metal Carbonyl Chemistry: Nature of Their Bonding and Supposed Innocence. Chemistry 2020; 26:11276-11292. [PMID: 32233000 PMCID: PMC7497151 DOI: 10.1002/chem.202001062] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/28/2020] [Indexed: 11/07/2022]
Abstract
A study on the reactivity of the N-heterocyclic silylene Dipp2 NHSi (1,3-bis(diisopropylphenyl)-1,3-diaza-2-silacyclopent-4-en-2-yliden) with the transition metal complexes [Ni(CO)4 ], [M(CO)6 ] (M=Cr, Mo, W), [Mn(CO)5 (Br)] and [(η5 -C5 H5 )Fe(CO)2 (I)] is reported. We demonstrate that N-heterocyclic silylenes, the higher homologues of the now ubiquitous NHC ligands, show a remarkably different behavior in coordination chemistry compared to NHC ligands. Calculations on the electronic features of these ligands revealed significant differences in the frontier orbital region which lead to some peculiarities of the coordination chemistry of silylenes, as demonstrated by the synthesis of the dinuclear, NHSi-bridged complex [{Ni(CO)2 (μ-Dipp2 NHSi)}2 ] (2), complexes [M(CO)5 (Dipp2 NHSi)] (M=Cr 3, Mo 4, W 5), [Mn(CO)3 (Dipp2 NHSi)2 (Br)] (9) and [(η5 -C5 H5 )Fe(CO)2 (Dipp2 NHSi-I)] (10). DFT calculations on several model systems [Ni(L)], [Ni(CO)3 (L)], and [W(CO)5 (L)] (L=NHC, NHSi) reveal that carbenes are typically the much better donor ligands with a larger intrinsic strength of the metal-ligand bond. The decrease going from the carbene to the silylene ligand is mainly caused by favorable electrostatic contributions for the NHC ligand to the total bond strength, whereas the orbital interactions were often found to be higher for the silylene complexes. Furthermore, we have demonstrated that the contribution of σ- and π-interaction depends significantly on the system under investigation. The σ-interaction is often much weaker for the NHSi ligand compared to NHC but, interestingly, the π-interaction prevails for many NHSi complexes. For the carbonyl complexes, the NHSi ligand is the better σ-donor ligand, and contributions of π-symmetry play only a minor role for the NHC and NHSi co-ligands.
Collapse
Affiliation(s)
- Mirjam J. Krahfuß
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Jörn Nitsch
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - F. Matthias Bickelhaupt
- Department of Theoretical ChemistryAmsterdam Center for, Multiscale Modeling (ACMM)Vrije Universiteit AmsterdamDe Boelelaan 10831081 HVAmsterdamThe Netherlands
- Institute for Molecules and Materials (IMM)Radboud UniversityHeyendaalseweg 1356525 AJNijmegenThe Netherlands
| | - Todd B. Marder
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Udo Radius
- Institut für Anorganische ChemieJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| |
Collapse
|
4
|
Frisch P, Szilvási T, Porzelt A, Inoue S. Transition Metal Carbonyl Complexes of an N-Heterocyclic Carbene Stabilized Silyliumylidene Ion. Inorg Chem 2019; 58:14931-14937. [DOI: 10.1021/acs.inorgchem.9b02772] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Philipp Frisch
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Tibor Szilvási
- Department of Chemical and Biological Engineering, University of Wisconsin−Madison, 1415 Engineering Drive, Madison, Wisconsin 53706-1607, United States
| | - Amelie Porzelt
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstraße 4, 85748 Garching bei München, Germany
| |
Collapse
|
5
|
Wang Z, Jiang L, Ng CK, Song X, Hor TSA, Zhao J. Isolation and Crystallographic Identification of Photoactive Pt
II
Tris‐ and Bis(
N
‐methylbenzimidazole‐NHC) Complexes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Zhe Wang
- Institute of Materials Research and Engineering Agency for Science Innovis 2 Fusionopolis Way 138634 Singapore Singapore
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Lu Jiang
- Institute of Materials Research and Engineering Agency for Science Innovis 2 Fusionopolis Way 138634 Singapore Singapore
| | - Chee Koon Ng
- Institute of Materials Research and Engineering Agency for Science Innovis 2 Fusionopolis Way 138634 Singapore Singapore
| | - Xiaolu Song
- Institute of Materials Research and Engineering Agency for Science Innovis 2 Fusionopolis Way 138634 Singapore Singapore
| | - T. S. Andy Hor
- Department of Chemistry The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Jin Zhao
- Institute of Materials Research and Engineering Agency for Science Innovis 2 Fusionopolis Way 138634 Singapore Singapore
| |
Collapse
|
6
|
Nogueira LS, Neves P, Gomes AC, Lavrador P, Cunha-Silva L, Valente AA, Gonçalves IS, Pillinger M. Molybdenum(0) tricarbonyl and tetracarbonyl complexes with a cationic pyrazolylpyridine ligand: synthesis, crystal structures and catalytic performance in olefin epoxidation. RSC Adv 2018; 8:16294-16302. [PMID: 35542229 PMCID: PMC9080237 DOI: 10.1039/c8ra01687a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/24/2018] [Indexed: 11/21/2022] Open
Abstract
The synthesis of molybdenum(0) tricarbonyl and tetracarbonyl complexes of the form [Mo(CO)3(ptapzpy)Br] (1) and cis-[Mo(CO)4(ptapzpy)]Br (2) is reported, where ptapzpy = 2-(1-propyltrimethylammonium-3-pyrazolyl)pyridine. Preparation of these derivatives was accomplished either through thermal replacement of CO in Mo(CO)6 (for 1) or substitution under milder conditions of piperidine ligands in the precursor cis-[Mo(CO)4(pip)2] (for 2). The crystal structures of the ligand [ptapzpy]Br and complexes 1 and 2 were determined. Thermal treatment of 2 at 125-150 °C leads to mono decarbonylation and formation of 1. On the other hand, oxidative decarbonylation of 1 and 2 by reaction with tert-butylhydroperoxide (TBHP, 10 equiv.) gives a molybdenum oxide hybrid material formulated as [Mo3O9([ptapzpy]Br)2]·nH2O (3), which was characterised by FT-IR and Raman spectroscopy, thermogravimetric analysis, and 13C{1H} CP MAS NMR spectroscopy. Compounds 1-3 were effective (pre)catalysts for the epoxidation of cis-cyclooctene at 55 °C with aqueous H2O2 or TBHP (slightly better results were obtained with the former). The characterisation of the Mo-containing solids isolated after the catalytic reaction showed that poorly soluble β-octamolybdate salts, (L) x [Mo8O26], were formed from 1-3 with TBHP and from 1 with H2O2, while soluble oxoperoxo species were formed from 3 with H2O2. These findings helped to explain the different catalytic performances obtained.
Collapse
Affiliation(s)
- Lucie S Nogueira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Patrícia Neves
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Ana C Gomes
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Pedro Lavrador
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Luís Cunha-Silva
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto 4169-007 Porto Portugal
| | - Anabela A Valente
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Isabel S Gonçalves
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| | - Martyn Pillinger
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro Portugal ,
| |
Collapse
|
7
|
Neves P, Nogueira LS, Valente AA, Pillinger M, Gonçalves IS, Sampaio-Dias IE, Sousa CA, Rizzo-Aguiar F, Rodríguez-Borges JE. Performance of chiral tetracarbonylmolybdenum pyrindanyl amine complexes in catalytic olefin epoxidation. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Wang Z, Song X, Jiang L, Lin TT, Schreyer MK, Zhao J, Hor TSA. Seven-Coordinate MoII
−Diiodo Complexes with Benzothiazole−N-Heterocyclic-Carbene Ligands and Their Mo0
Precursors: Synthesis, Structures, and Catalytic Application in the Epoxidation of cis
-Cyclooctene. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Zhe Wang
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Xiaolu Song
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
| | - Lu Jiang
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
| | - Ting Ting Lin
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
| | - Martin Karl Schreyer
- Institute of Chemical and Engineering Sciences; Agency for Science, Technology and Research (A*STAR); 1 Pesek Road, Jurong Island Singapore 627833 Singapore
| | - Jin Zhao
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - T. S. Andy Hor
- Institute of Materials Research and Engineering; Agency for Science, Technology and Research (A*STAR); 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
- Department of Chemistry; The University of Hong Kong; Hong Kong SAR China
| |
Collapse
|
9
|
Synthesis of two new Mo(II) organometallic catalysts immobilized on POSS for application in olefin oxidation reactions. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
10
|
Song X, Lim MH, Mohamed DKB, Wong SM, Zhao J, Hor TA. Re(I) carbonyl complexes containing pyridyl-imine and amine ligands: Synthesis, characterization and their catalytic olefin epoxidation activities. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.04.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
11
|
Ibrahim H, Bala MD. Earth abundant metal complexes of donor functionalised N-heterocyclic carbene ligands: synthesis, characterisation and application as amination catalysts. NEW J CHEM 2016. [DOI: 10.1039/c6nj01118g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A detailed study on Co and Ni complexes of N-functionalised chelating NHC ligands applied for the mono-arylation of aniline and substituted aryl amines is presented.
Collapse
Affiliation(s)
- Halliru Ibrahim
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Muhammad Dabai Bala
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| |
Collapse
|
12
|
|