1
|
Nasser N, Puddephatt RJ. Chemistry of Gold(III) with a Pyridine-Oxaziridine Ligand: Competition between C-O and N-O bond Activation. Chempluschem 2023; 88:e202300274. [PMID: 37639223 DOI: 10.1002/cplu.202300274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
The oxaziridine derivative 2-t-butyl-3-(2-pyridinyl)oxaziridine reacted with Na[AuCl4 ].2H2 O to give, after recrystallization from a solvent mixture containing methanol, a mixture of gold(III) complexes which were characterized crystallographically as the amide complex [AuCl2 {κ2 -N,N'-2-C5 H4 NC(=O)N(t-Bu)] and the aldolate complex [AuCl2 {κ2 -N,O-2-C5 H4 NCH(OMe)O)]. It is suggested that these products arise after initial O-N or C-N bond cleavage respectively of the strained oxaziridine ring, after coordination to the gold(III) center. Monitoring of reactions by NMR spectroscopy showed that O-N bond cleavage of the oxaziridine ring was favoured in the presence of a protic solvent.
Collapse
Affiliation(s)
- Nasser Nasser
- Department of Chemistry, University of Western Ontario, London, N6 A 5B7, Canada
| | - Richard J Puddephatt
- Department of Chemistry, University of Western Ontario, London, N6 A 5B7, Canada
| |
Collapse
|
2
|
Clapson ML, Sharma H, Zurakowski JA, Drover MW. Cooperative Nitrile Coordination Using Nickel and a Boron-Containing Secondary Coordination Sphere. Chemistry 2023; 29:e202203763. [PMID: 36534339 DOI: 10.1002/chem.202203763] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/23/2022]
Abstract
Metal-ligand cooperation has emerged as a versatile tool for substrate activation in chemical reactivity. Herein, we provide the synthesis and characterization of a monoboranyl-containing analogue of the ubiquitous bulky diphosphine ligand, 1,2-bis(di-tert-butylphosphino)ethane, whose reactivity has been examined using nickel. Together, the pairing of nickel and boron provides a platform that allows for the cooperative coordination of organonitriles, giving unusual examples of intermolecularly bound dinickelacycles.
Collapse
Affiliation(s)
- Marissa L Clapson
- Department of Chemistry and Biochemistry, The University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
| | - Harvey Sharma
- Department of Chemistry and Biochemistry, The University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
| | - Joseph A Zurakowski
- Department of Chemistry and Biochemistry, The University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
| | - Marcus W Drover
- Department of Chemistry and Biochemistry, The University of Windsor, 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
| |
Collapse
|
3
|
Dodd NA, Bacsa J, Sadighi JP. Synthesis of a Nickel(I) alkoxide and related cation equivalents. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
4
|
Ravindra S, Irfana Jesin CP, Shabashini A, Nandi GC. Recent Advances in the Preparations and Synthetic Applications of Oxaziridines and Diaziridines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001372] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sundaresan Ravindra
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - C. P. Irfana Jesin
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - Arivalagan Shabashini
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| | - Ganesh Chandra Nandi
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015, Tamilnadu India
| |
Collapse
|
5
|
D’Accriscio F, Ohleier A, Nicolas E, Demange M, Thillaye Du Boullay O, Saffon-Merceron N, Fustier-Boutignon M, Rezabal E, Frison G, Nebra N, Mézailles N. [(dcpp)Ni(η2-Arene)] Precursors: Synthesis, Reactivity, and Catalytic Application to the Suzuki–Miyaura Reaction. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Florian D’Accriscio
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Alexia Ohleier
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Emmanuel Nicolas
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Matthieu Demange
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Olivier Thillaye Du Boullay
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599, Université Paul Sabatier, CNRS, 31062 Toulouse Cedex, France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Elixabete Rezabal
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Gilles Frison
- Laboratoire Chimie Moléculaire, Ecole Polytechnique, CNRS, 91128 Palaiseau Cédex, France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée, Université Paul Sabatier, CNRS, 118 Route de Narbonne, 31062 Toulouse, France
| |
Collapse
|
6
|
Desnoyer AN, He W, Behyan S, Chiu W, Love JA, Kennepohl P. The Importance of Ligand-Induced Backdonation in the Stabilization of Square Planar d 10 Nickel π-Complexes. Chemistry 2019; 25:5259-5268. [PMID: 30693581 DOI: 10.1002/chem.201805987] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 01/06/2023]
Abstract
The electronic nature of Ni π-complexes is underexplored even though these complexes have been widely postulated as intermediates in organometallic chemistry. Herein, the geometric and electronic structure of a series of nickel π-complexes, Ni(dtbpe)(X) (dtbpe=1,2-bis(di-tert-butyl)phosphinoethane; X=alkene or carbonyl containing π-ligands), is probed using a combination of 31 P NMR, Ni K-edge XAS, Ni Kβ XES, and DFT calculations. These complexes are best described as square planar d10 complexes with π-backbonding acting as the dominant contributor to M-L bonding to the π-ligand. The degree of backbonding correlates with 2 JPP from NMR and the energy of the Ni 1s→4pz pre-edge in the Ni K-edge XAS data, and is determined by the energy of the π*ip ligand acceptor orbital. Thus, unactivated olefinic ligands tend to be poor π-acids whereas ketones, aldehydes, and esters allow for greater backbonding. However, backbonding is still significant even in cases in which metal contributions are minor. In such cases, backbonding is dominated by charge donation from the diphosphine, which allows for strong backdonation, although the metal centre retains a formal d10 electronic configuration. This ligand-induced backbonding can be formally described as a 3-centre-4-electron (3c-4e) interaction, in which the nickel centre mediates charge transfer from the phosphine σ-donors to the π*ip ligand acceptor orbital. The implications of this bonding motif are described with respect to both structure and reactivity.
Collapse
Affiliation(s)
- Addison N Desnoyer
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Weiying He
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Shirin Behyan
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Weiling Chiu
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Jennifer A Love
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Pierre Kennepohl
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| |
Collapse
|
7
|
He W, Kennepohl P. Direct experimental evaluation of ligand-induced backbonding in nickel metallacyclic complexes. Faraday Discuss 2019; 220:133-143. [PMID: 31544197 DOI: 10.1039/c9fd00041k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The details of ligand-induced backbonding in nickel diphosphine π complexes are explored using nickel L-edge (3d←2p) X-ray absorption spectroscopy as a means of quantifying the degree of backbonding derived from direct Ni 3d donation into the π ligand. It is observed that backbonding into weakly π acidic ligands such as alkenes and arenes is dominated by contributions from the diphosphine ligand via σ-donation, leading to activated metallacycles with a Ni(0) d10 metal centre. With more strongly π acidic ligands, however, metal contributions to backbonding increase substantially leading to a more electron-deficient metal centre that is best described as having a Ni(i) spectroscopic oxidation state.
Collapse
Affiliation(s)
- Weiying He
- The University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, British Columbia, Canada.
| | | |
Collapse
|
8
|
Nasser N, Fard MA, Boyle PD, Puddephatt RJ. Oxygen atom transfer to platinum(II): A 2-pyridyloxaziridine and a 2-pyridylnitrone as potential oxygen atom donors. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.12.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
9
|
|