1
|
Mikhaylov VN, Balova IA. Alternative Transformations of N-Heterocyclic Carbene Complexes of the Group 11 Metals in Transmetalation Reactions (A Review). RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221110098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
2
|
Kariuki BM, Platts JA, Newman PD. A hybrid bipy-NHC ligand for the construction of group 11 mixed-metal bimetallic complexes. RSC Adv 2021; 11:34170-34173. [PMID: 35497314 PMCID: PMC9042343 DOI: 10.1039/d1ra06581e] [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: 09/01/2021] [Accepted: 10/05/2021] [Indexed: 11/25/2022] Open
Abstract
An asymmetric bipy/NHC ligand L has been used to construct Au/Au, Au/Ag and Au/Cu bimetallic complexes through prior coordination of the NHC to Au(i) and subsequent introduction of the second group 11 metal ion at the bipy donor of the hybrid ligand. The complex [Au(κC-L)2]BF4,1, has been used as the precursor for the formation of [AuAg(κ-C Au,κ2-N,N'Ag-1)2](BF4)2, 2a, [AuCu(κ-C Au,κ2-N,N'Cu-1)2](BF4)2, 2b and [AuAu'(κ-CAu/Au',κ1-NAu/Au'-1)2](BF4)2, 3.
Collapse
Affiliation(s)
- Benson M Kariuki
- School of Chemistry, Cardiff University Park Place Cardiff CF10 3AT Wales UK
| | - James A Platts
- School of Chemistry, Cardiff University Park Place Cardiff CF10 3AT Wales UK
| | - Paul D Newman
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University Park Place Cardiff CF10 3AT Wales UK
| |
Collapse
|
3
|
Lapshin IV, Cherkasov AV, Trifonov AA. Synthesis and structures of 4,5-dimethyl-1,3-bis(pyridin-2-ylmethyl)-1H-imidazolium chloride and 1,1′-bis(pyridin-2-ylmethyl)-2,2′-bis(4,5-dimethylimidazole). Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3303-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Evans KJ, Mansell SM. Functionalised N-Heterocyclic Carbene Ligands in Bimetallic Architectures. Chemistry 2020; 26:5927-5941. [PMID: 31981386 PMCID: PMC7317719 DOI: 10.1002/chem.201905510] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Indexed: 12/18/2022]
Abstract
N-Heterocyclic carbenes (NHCs) have become immensely successful ligands in coordination chemistry and homogeneous catalysis due to their strong terminal σ-donor properties. However, by targeting NHC ligands with additional functionalisation, a new area of NHC coordination chemistry has developed that has enabled NHCs to be used to build up bimetallic and multimetallic architectures. This minireview covers the development of functionalised NHC ligands that incorporate additional donor sites in order to coordinate two or more metal atoms. This can be through the N-atom of the NHC ring, through a donor group attached to the N-atom or the carbon backbone, coordination of the π-bond or an annulated π-donor on the backbone, or through direct metalation of the backbone.
Collapse
Affiliation(s)
- Kieren J. Evans
- Institute of Chemical SciencesHeriot-Watt UniversityEdinburghEH14 4ASUK
| | | |
Collapse
|
5
|
Evans KJ, Campbell CL, Haddow MF, Luz C, Morton PA, Mansell SM. Lithium Complexes with Bridging and Terminal NHC Ligands: The Decisive Influence of an Anionic Tether. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kieren J. Evans
- Institute of Chemical Sciences Heriot‐Watt University EH14 4AS Edinburgh UK
| | | | - Mairi F. Haddow
- Institute of Chemical Sciences Heriot‐Watt University EH14 4AS Edinburgh UK
| | - Christian Luz
- Institute of Chemical Sciences Heriot‐Watt University EH14 4AS Edinburgh UK
| | - Paul A. Morton
- Institute of Chemical Sciences Heriot‐Watt University EH14 4AS Edinburgh UK
| | - Stephen M. Mansell
- Institute of Chemical Sciences Heriot‐Watt University EH14 4AS Edinburgh UK
| |
Collapse
|
6
|
Luo S, Bruggeman DF, Siegler MA, Bouwman E. Can pendant pyridyl arm assist the proton delivery in electrocatalysis? Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Kaub C, Lebedkin S, Li A, Kruppa SV, Strebert PH, Kappes MM, Riehn C, Roesky PW. Bimetallic d 10 -Metal Complexes of a Bipyridine Substituted N-Heterocyclic Carbene. Chemistry 2018; 24:6094-6104. [PMID: 29377298 DOI: 10.1002/chem.201705757] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Indexed: 12/18/2022]
Abstract
The hybrid ligand 3-(2,2'-bipyridine-6-ylmethyl)-1-mesityl-1H-imidazolylidene (NHCBipy ) featuring both carbene and N-donor sites, was selectively complexed with various d10 metal cations in order to examine its coordination behavior with regard to homo and heterometallic structures. Respective silver complexes can be obtained by the silver oxide route and are suitable transmetallation reagents for the synthesis of gold(I) compounds. Starting from the mononuclear complexes [(NHCBipy )AuCl], [(NHCBipy )Au(C6 F5 )] and [(NHCBipy )2 Au][ClO4 ], open-chain as well as cyclic heterobimetallic complexes containing Cu+ , Ag+ , Zn2+ , Cd2+ , and Hg2+ were synthesized. Furthermore, the homobimetallic species [(NHCBipy )2 M2 ][ClO4 ]2 (M=Cu, Ag) were obtained. All bimetallic compounds were fully characterized including single-crystal X-ray analysis. Their photoluminescence (PL) properties were investigated in the solid state at temperatures between 15 and 295 K and compared with those of the mononuclear species. There is a clear difference in PL properties between the open chain and the cyclic heterobimetallic complexes. The latter species show different PL properties, depending on the metals involved. In addition, collision-induced dissociation (CID) experiments were performed on electrosprayed cations of the cyclic heterobimetallic compounds, to compare the metal binding at the carbene and N-donor sites.
Collapse
Affiliation(s)
- Christoph Kaub
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technologie (KIT), Engesserstr. 15, 76131, Karlsruhe, Germany
| | - Sergei Lebedkin
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Alina Li
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131, Karlsruhe, Germany
| | - Sebastian V Kruppa
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger Str. 52-54, 67663, Kaiserslautern, Germany
| | - Patrick H Strebert
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger Str. 52-54, 67663, Kaiserslautern, Germany
| | - Manfred M Kappes
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber Weg 2, 76131, Karlsruhe, Germany
| | - Christoph Riehn
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger Str. 52-54, 67663, Kaiserslautern, Germany.,Forschungszentrum OPTIMAS, TU Kaiserslautern, Erwin-Schrödinger-Str. 46, 67663, Kaiserslautern, Germany
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technologie (KIT), Engesserstr. 15, 76131, Karlsruhe, Germany
| |
Collapse
|
8
|
Fei B, Chen XQ, Cai YD, Fang JK, Tong ML, Tucek J, Bao X. The influence of NCE− (E = S, Se, BH3) ligands on the temperature of spin crossover in a family of iron(ii) mononuclear complexes. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00303c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The temperature of spin crossover was systematically tuned by replacing the NCE− (E = S, Se, BH3) co-ligands in a family of mononuclear complexes.
Collapse
Affiliation(s)
- Bin Fei
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Xiu Qin Chen
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - You De Cai
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jing-Kun Fang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Ming Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- 510275 Guangzhou
- P. R. China
| | - Jiri Tucek
- Regional Centre of Advanced Technologies and Materials
- Department of Experimental Physics
- Faculty of Science
- Palacky University
- 78371 Olomouc
| | - Xin Bao
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
- State Key Laboratory of Coordination Chemistry
| |
Collapse
|
9
|
Bouché M, Mordan M, Kariuki BM, Coles SJ, Christensen J, Newman PD. Mono- and dimeric complexes of an asymmetric heterotopic P,CNHC,pyr ligand. Dalton Trans 2016; 45:13347-60. [PMID: 27461718 DOI: 10.1039/c6dt02476a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An asymmetric heterotopic ligand (S-N(Me)CP) containing a central bicyclic, expanded-ring NHC with one pyridyl and one phosphine exo-substituent has been synthesised and its coordination chemistry with selected late transition metals investigated. The amidinium precursor [S-N(Me)CHP]PF6 shows variable coordination modes with Ag(i), Cu(i) and Au(i) depending on the L : M ratio. The reaction of two mols of [S-N(Me)CHP]PF6 with [Cu(MeCN)4]BF4, AgBF4 or Au(THT)Cl gives the bis-ligand complexes [Cu(κ-P-N(Me)CHP)2(CH3CN)2]BF4·(PF6)2, 1, and [M(κ-P-N(Me)CHP)2]X·(PF6)2 (3: M = Ag, X = BF4; 6: M = Au, X = Cl) respectively. The 1 : 1 reaction of [S-N(Me)CHP]PF6 with AgOTf gave the head-to-tail dimer H,T-[Ag2(μ-N,P-N(Me)CHP)2(μ-OTf)2](PF6)2, 2, whereas the analogous reaction with Au(THT)Cl gave monomeric [Au(κ-P-N(Me)CHP)Cl]PF6, 5. Complex 2 was converted to H,T-[Ag2(μ-C,P-N(Me)CP)2](PF6)2, 4, upon addition of base, while 6 gave [Au(κ-C-N(Me)CP)2]Cl, 8, when treated likewise. Reaction of [S-N(Me)CHP]PF6 with Ni(1,5-COD)2 gave the oxidative addition/insertion product [Ni(κ(3)-N,C,P-N(Me)CP)(η(3)-C8H13)]PF6, 9, which converted to [Ni(κ(3)-N,C,P-N(Me)CP)Cl]PF6, 10, upon exposure of a CHCl3 solution to air. Complex 10 showed conformational isomerism that was also present in [Rh(κ(3)-N,C,P-N(Me)CP)(CO)]PF6, 14, prepared from the precursor complex [Rh(κ-P-N(Me)CHP)(acac)(CO)]PF6, 13, upon heating in C6H5Cl. [Pt(κ(3)-N,C,P-N(Me)CP)(Cl)]PF6, 12, derived from trans-[Pt(κ-P-N(Me)CHP)2(Cl)2](PF6)2, 11, was isolated as a single conformer.
Collapse
Affiliation(s)
- Mathilde Bouché
- School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK.
| | | | | | | | | | | |
Collapse
|
10
|
Cox K, Kariuki BM, Smyth A, Newman PD. N2S2 and N4S4 precursors to PS2 macrocycles and cyclic amidinium salts. Dalton Trans 2016; 45:8485-93. [PMID: 27112102 DOI: 10.1039/c6dt00806b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cyclo-condensation of 1R,2R-diaminocyclohexane with 2,2'-(ethane-1,2-diyldisulfanediyl)dibenzaldehyde gave the 1 : 1 addition compound chxn-(im)N2S2 in high yield. When the same condensation reaction was performed with 1R,3S-diamino-1,7,7-trimethylcyclopentane as the diamine, the 2 : 2 addition compound tmcp-(im)N4S4 was obtained selectively. Reduction of the diimines gave the saturated analogues chxn-N2S2 (1) and tmcp-N4S4 (3) the former of which could be phosphorylated with PhP(NMe2)2 to give the novel 13-membered macrocycle chxn-PS2, 2. Introduction of the phenylphosphine function proved stereoselective with a preference for the N(R)/N(S) configuration at the nitrogen atoms. The coordination chemistry of the novel phosphine has been explored with Cu(i) and Mo(0) through formation of the complexes Cu(2)I, 4, and Mo(CO)3(2), 5. Extension of the phosphorylation chemistry to tmcp-N4S4 (3) proved unsuccessful but ring closure reactions of both 1 and 3 with triethylorthoformate gave cyclic amidinium salts which are potential precursors to macrocyclic N-heterocyclic carbenes.
Collapse
Affiliation(s)
- Katrina Cox
- School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK.
| | | | | | | |
Collapse
|
11
|
Lillo VJ, Mansilla J, Saá JM. Organocatalysis by Networks of Cooperative Hydrogen Bonds: Enantioselective Direct Mannich Addition to Preformed Arylideneureas. Angew Chem Int Ed Engl 2016; 55:4312-6. [DOI: 10.1002/anie.201511555] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 01/27/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Victor J. Lillo
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| | - Javier Mansilla
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| | - José M. Saá
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| |
Collapse
|
12
|
Lillo VJ, Mansilla J, Saá JM. Organocatalysis by Networks of Cooperative Hydrogen Bonds: Enantioselective Direct Mannich Addition to Preformed Arylideneureas. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Victor J. Lillo
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| | - Javier Mansilla
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| | - José M. Saá
- Departamento de Química; Universidad de las Islas Baleares; 07122 Palma de Mallorca Spain
| |
Collapse
|
13
|
Liu QX, Huo R, Liu J, Wei Q, Zhao XJ, Zhao ZX. NHC Tetranuclear Silver(I) Complexes and Intramolecular Extended π–π Interactions. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qing-Xiang Liu
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Ran Huo
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Jun Liu
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Qing Wei
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Xiao-Jun Zhao
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Zhi-Xiang Zhao
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| |
Collapse
|