Title: Copper Complexes with Diazoolefin Ligands and their Photochemical Conversion into Alkenylidene Complexes

Journal Article · · Angewandte Chemie

Abstract Homometallic copper complexes with alkenylidene ligands are discussed as intermediates in catalysis but the isolation of such complexes has remained elusive. Herein, we report the structural characterization of copper complexes with bridging and terminal alkenylidene ligands. The compounds were obtained by irradiation of Cu I complexes with N‐heterocyclic diazoolefin ligands. The complex with a terminal alkenylidene ligand required isolation in a crystalline matrix, and its structural characterization was enabled by in crystallo photolysis at low temperature.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357; SC0018977
OSTI ID:
1905676
Journal Information:
Angewandte Chemie, Journal Name: Angewandte Chemie Journal Issue: 4 Vol. 135; ISSN 0044-8249
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (69)

Copper(I) Carbenes: The Synthesis of Active Intermediates in Copper-Catalyzed Cyclopropanation journal April 2001
Chrom-Kupfer-Austausch bei Fischer-Carbenkomplexen: Kristallstruktur eines [Cu{=CR1(OR2)}(MeCN)(Et2O)][PF6]-Komplexes journal September 2001
Copper(I) Carbenes: The Synthesis of Active Intermediates in Copper-Catalyzed Cyclopropanation journal April 2001
Chromium-Copper Exchange of Fischer Carbene Complexes: X-Ray Crystal Structure of a [Cu{=CR1(OR2)}(MeCN)(Et2O)][PF6] Complex journal September 2001
Kupfer-Carben-Komplexe: hochentwickelte Katalysatoren, neue Erkenntnisse journal March 2003
Lewis Base Stabilized Dicarbon: Predictions from Theory journal January 2012
C 4 Cumulene and the Corresponding Air-Stable Radical Cation and Dication journal March 2014
Kupfer- und Silber-Carbenkomplexe ohne Heteroatom-Stabilisierung: Struktur, Spektroskopie und relativistische Effekte journal July 2015
Stable Mesoionic N‐Heterocyclic Olefins (mNHOs) journal January 2020
Copper Carbene Complexes: Advanced Catalysts, New Insights journal March 2003
Lewis Base Stabilized Dicarbon: Predictions from Theory journal January 2012
C 4 Cumulene and the Corresponding Air-Stable Radical Cation and Dication journal March 2014
Copper and Silver Carbene Complexes without Heteroatom-Stabilization: Structure, Spectroscopy, and Relativistic Effects journal July 2015
Stable Mesoionic N‐Heterocyclic Olefins (mNHOs) journal January 2020
Dialkylamino‐substituierte Ethylendiazoniumsalze journal November 1987
The Fate of NHC-Stabilized Dicarbon journal January 2015
Copper-Carbene Intermediates in the Copper-Catalyzed Functionalization of OH Bonds journal May 2015
Vinyliden-Übergangsmetallkomplexe journal March 1988
2,2-(n,n′-dimethyl-ethylendiamino)-ethylendiazonium-ion, ein diazonium-ion mit ungewöhnlichen eigenschaften journal January 1985
Non-heteroatom-substituted alkylidene complexes of groups 10 and 11 journal January 2018
Atomically precise copper nanoclusters and their applications journal March 2018
Crystalline monometal-substituted free carbenes journal August 2022
Electronic structure and electrophilic reactivity of discrete copper diphenylcarbenes journal December 2005
Chemistry of vinylidene complexes. XXII. Synthesis and physicochemical properties of the binuclear vinylidene complex [Cp(CO)2ReCu(μ-CCHPh)(μ-Cl)]2. Molecular structure of the new rheniumcopper complex journal May 2014
Recent advances in copper-catalyzed propargylic substitution journal January 2015
Pushing Chemical Boundaries with N-Heterocyclic Olefins (NHOs): From Catalysis to Main Group Element Chemistry journal August 2017
Transition-Metal-Catalyzed Cross-Couplings through Carbene Migratory Insertion journal June 2017
N-Heterocyclic Carbene Complexes of Copper, Nickel, and Cobalt journal January 2019
Transition Metal Vinylidene- and Allenylidene-Mediated Catalysis in Organic Synthesis journal January 2019
Tuning the Metal/Chalcogen Composition in Copper(I)–Chalcogenide Clusters with Cyclic (Alkyl)(amino)carbene Ligands journal February 2019
Revisiting the Bonding Scenario of Two Donor Ligand Stabilized C2 Species journal December 2020
Coinage Metal Catalyzed C−H Bond Functionalization of Hydrocarbons journal August 2008
Catalytic Carbene Insertion into C−H Bonds journal February 2010
All-Electron Scalar Relativistic Basis Sets for Third-Row Transition Metal Atoms journal May 2008
Synthesis, Molecular Structures, and Reactivity of Mono- and Binuclear Neutral Copper(I) Carbenes journal November 2008
Discrete Bridging and Terminal Copper Carbenes in Copper-Catalyzed Cyclopropanation journal July 2004
Isolable and Well-Defined Butadienyl Organocopper(I) Aggregates: Facile Synthesis, Structural Characterization, and Reaction Chemistry journal December 2013
Monomeric Bis(η2-alkyne) Complexes of Copper(I) and Silver(I) with η1-Bonded Alkyl, Vinyl, and Aryl Ligands journal January 1996
In Crystallo Snapshots of Rh 2 -Catalyzed C–H Amination journal November 2020
Two Copper-Carbenes from One Diazo Compound journal March 2021
N2/CO Exchange at a Vinylidene Carbon Center: Stable Alkylidene Ketenes and Alkylidene Thioketenes from 1,2,3-Triazole Derived Diazoalkenes journal August 2021
Direct Characterization of a Reactive Lattice-Confined Ru 2 Nitride by Photocrystallography journal February 2017
Characterization of a Reactive Rh 2 Nitrenoid by Crystalline Matrix Isolation journal September 2019
A Fluxional α-Carbonyl Diazoalkane Complex of Copper Relevant to Catalytic Cyclopropanation journal September 2000
Remarkably Stable Copper(I) α-Carbonyl Carbenes: Synthesis, Structure, and Mechanistic Studies of Alkene Cyclopropanation Reactions journal January 2009
Synthesis of Bis(phosphine) and N-Heterocyclic Carbene Supported α- Diazoalkyl Complexes of Copper(I) journal September 2009
A platinum(ii) metallonitrene with a triplet ground state journal August 2020
Isolation and reactivity of an elusive diazoalkene journal April 2021
Isolation and characterization of diazoolefins journal October 2021
Singlet carbenes as mimics for transition metals: synthesis of an air stable organic mixed valence compound [M 2 (C 2 ) + ˙; M = cyclic(alkyl)(amino)carbene] journal January 2014
Synthetic chemistry with nitrous oxide journal January 2015
Synthesis, properties & applications of N-heterocyclic olefins in catalysis journal January 2019
Copper nanoclusters: designed synthesis, structural diversity, and multiplatform applications journal January 2021
In crystallo organometallic chemistry journal January 2021
Vanadium complexes with N-heterocyclic vinylidene ligands journal January 2022
Recent advances of mesoionic N-heterocyclic olefins journal January 2022
Balanced basis sets of split valence, triple zeta valence and quadruple zeta valence quality for H to Rn: Design and assessment of accuracy journal January 2005
µ-Acetylide and µ-alkenylidene ligands in “click” triazole syntheses journal January 2007
Diazoalkanes react with a bis(phosphino)borate copper(i) source to generate [Ph2BPtBu2]Cu(η1-N2CR2), [Ph2BPtBu2]Cu(CPh2), and [Ph2BPtBu2]Cu–N(CPh2)(NCPh2) journal January 2008
Copper-catalyzed azide–alkyne cycloaddition (CuAAC) and beyond: new reactivity of copper(i) acetylides journal January 2010
Novel benzeneosmium complexes containing alkynyl, vinyl and vinylidene groups as ligands journal January 1985
A generally applicable atomic-charge dependent London dispersion correction journal April 2019
Crystallography of Reactive Intermediates journal April 2020
Density-functional exchange-energy approximation with correct asymptotic behavior journal September 1988
Density-functional approximation for the correlation energy of the inhomogeneous electron gas journal June 1986
Direct Evidence of a Dinuclear Copper Intermediate in Cu(I)-Catalyzed Azide-Alkyne Cycloadditions journal April 2013
Structure Analysis of Photo-induced Triplet Phenylnitrene Using Synchrotron Radiation journal October 2003
Development of Asymmetric Propargylic Substitution Reactions Using Transition Metal Catalysts journal June 2021
The final fate of NHC stabilized dicarbon journal February 2017