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Radal L, Almallah H, Labonde M, Roger J, Cattey H, Sabbadin H, Amardeil R, Pirio N, Hierso J. Hybrid Phosphine/Amino-Acid Ligands Built on Phenyl and Ferrocenyl Platforms: Application in the Suzuki Coupling of o-Dibromobenzene with Fluorophenylboronic Acid. ChemistryOpen 2023; 12:e202200190. [PMID: 36635048 PMCID: PMC9836907 DOI: 10.1002/open.202200190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/10/2022] [Indexed: 01/14/2023] Open
Abstract
We describe the synthesis and characterization of two classes of hybrid phosphino ligands functionalized with amino ester or amino acid groups. These compounds are built either on a rigid planar phenyl platform or on a functionalized - conformationally controlled - rotational ferrocene backbone. Modifications at the -PR2 phosphino groups (R=aryl and alkyl, with various steric bulk, Ph, Mes, i-Pr, Cy) and at the amino acid/amino ester functions are reported, showing a valuable high modularity. The coordination chemistry of these compounds regarding palladium and gold was investigated, in particular with respect to the coordination mode of the phosphino groups and the preferred interaction with metals for the amino ester and amino acid functions. For all the hybrid ligands, based either on ferrocenyl or phenyl platforms, the (P,N)-chelating effect dominates in solution for coordination to Pd(II), while linear P-Au(I) complexes without interaction with the amino groups are assumed. The investigation of the catalytic activity of these new ligands in the demanding palladium-catalyzed Suzuki-Miyaura coupling of o-dibromoarenes with fluorophenylboronic acid underlined the importance of the amino ester dicyclohexylphosphinoferrocene for avoiding the deleterious homocoupling and arene oligomerization side-reactions that were otherwise observed with the other phosphine ligands.
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Affiliation(s)
- Léa Radal
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Hamze Almallah
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Marine Labonde
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Henri Sabbadin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302Université de Bourgogne9 avenue Alain Savary21078DijonFrance
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Navrátil M, Císařová I, Štěpnička P. Synthesis and coordination of hybrid phosphinoferrocenes with extended donor pendants. Dalton Trans 2022; 51:14618-14629. [PMID: 36083192 DOI: 10.1039/d2dt02514k] [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
Combining a phosphinoferrocene fragment with extended multidonor moieties affords novel, flexible multidonor pro-ligands. This contribution describes the synthesis of two structurally similar functional phosphines, Ph2PfcNHC(O)CH2PPh2 (1) and Ph2PfcNHCH2CH2PPh2 (2, fc = ferrocene-1,1'-diyl), and their coordination behaviour towards Pd(II). The former amidophosphine reacts with [PdCl2(MeCN)2] to produce the chelate complex [PdCl2(1-κ2P,P')] as a mixture of cis and trans isomers, which convert into bis-chelate [PdCl2(Ph2PfcNC(O)CH2PPh2-κ3P,P',N)] upon reacting with a strong base (KOt-Bu). In contrast, the more flexible and more basic phosphinoamine 2 directly forms the cationic bis-chelate complex [PdCl(2-κ3P,P',N)]Cl via spontaneous self-ionisation. Subsequent halogen abstraction with Ag[SbF6] results either in counter ion exchange to give [PdCl(2-κ3P,P',N)][SbF6] or in the formation of a structurally unique complex [PdCl(2-κ4Fe,P,P',N)][SbF6]2 with an Fe → Pd dative interaction, depending on the amount of silver(I) salt used (1 or 2 equiv.).
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Affiliation(s)
- Michal Navrátil
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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Zhong KL, Quan J, Pan XX, Song W, Li BF. Synthesis, crystal structure and properties of a 2-D Cd(II) coordination polymer based on ferrocenecarboxylate and 4,4′-bipyridine ligands. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2021. [DOI: 10.1515/znb-2021-0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A new cadmium(II)-based coordination polymer [Cd3(FcCOO)6(4,4′-bipy)(H2O)2]
n
(FcCOO = ferrocenecarboxylato and 4,4′-bipy = 4,4′-bipyridine) has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction. The results of a crystal structural analysis has revealed that the title compound consists of two crystallographically unique CdII centers, one in a general position with a five-coordinated and one on an inversion center with a six-coordinated environment. The CdII centers are connected by FcCOO− units to form a metal carboxylate oxygen chain extending parallel to the [100] direction while the 4,4′-bipy ligands further act as bridging linkers of the CdII centers resulting in a layered polymer. In addition, an X-ray powder diffraction and thermal gravimetric analysis and a cyclo-voltammetric characterization of the complex have also been carried out.
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Affiliation(s)
- Kai-Long Zhong
- School of Life and Health, Nanjing Polytechnic Institute , Nanjing , 210048 , China
| | - Jing Quan
- School of Life and Health, Nanjing Polytechnic Institute , Nanjing , 210048 , China
| | - Xian-Xiao Pan
- School of Environmental Engineering, Nanjing Polytechnic Institute , Nanjing , 210048 , China
| | - Wei Song
- School of Life and Health, Nanjing Polytechnic Institute , Nanjing , 210048 , China
| | - Bing-Feng Li
- School of Life and Health, Nanjing Polytechnic Institute , Nanjing , 210048 , China
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4
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Vosáhlo P, Radal L, Labonde M, Císařová I, Roger J, Pirio N, Hierso JC, Štěpnička P. Synthesis and Catalytic Use of Polar Phosphinoferrocene Amidosulfonates Bearing Bulky Substituents at the Ferrocene Backbone. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00244] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Léa Radal
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB) UMR CNRS 6302, Université Bourgogne Franche-Comté (UBFC), 9 avenue Alain Savary, 21078 Dijon, France
| | - Marine Labonde
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB) UMR CNRS 6302, Université Bourgogne Franche-Comté (UBFC), 9 avenue Alain Savary, 21078 Dijon, France
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Julien Roger
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB) UMR CNRS 6302, Université Bourgogne Franche-Comté (UBFC), 9 avenue Alain Savary, 21078 Dijon, France
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB) UMR CNRS 6302, Université Bourgogne Franche-Comté (UBFC), 9 avenue Alain Savary, 21078 Dijon, France
| | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB) UMR CNRS 6302, Université Bourgogne Franche-Comté (UBFC), 9 avenue Alain Savary, 21078 Dijon, France
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
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5
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Almássy A, Hejtmánková A, Vargová D, Šebesta R. Isomerization of Ferrocenyl Phosphinites to Phosphane-oxides and retro-Phospha-Brook Rearrangement. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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6
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Khrizanforov M, Shekurov R, Zagidullin A, Gerasimova T, Ivshin K, Kataeva O, Miluykov V. Zwitterionic form of Ugi amine H-phosphinic acid: Structure and electrochemical properties. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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7
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Varmužová V, Horký F, Štěpnička P. Synthesis and coordination of a hybrid phosphinoferrocene sulfonamide ligand. NEW J CHEM 2021. [DOI: 10.1039/d1nj00080b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid, phosphinoferrocene sulfonamide ligand was synthesised and studied as a ligand in Pd(ii) complexes, which were structurally characterised. Selected compounds were studied by cyclic voltammetry.
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Affiliation(s)
- Věra Varmužová
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Hlavova 2030
- Czech Republic
| | - Filip Horký
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Hlavova 2030
- Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- Hlavova 2030
- Czech Republic
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8
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Anzaldo B, Villamizar C CP, Sharma P, Gutiérrez R, Toscano AR, Gaviño R. Ferrocenylated imine- and amine(secondary/tertiary)- phosphine P^N ligands and their Pd(II) complexes: Synthesis and structural characterization. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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The synthesis and structure of new ferrocenyl-containing o-iminophenol schiff bases and nickel(II), copper(II) bis-o-iminophenolato complexes. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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10
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Navrátil M, Císařová I, Alemayehu A, Škoch K, Štěpnička P. Synthesis and Structural Characterisation of an N-Phosphanyl Ferrocene Carboxamide and its Ruthenium, Rhodium and Palladium Complexes. Chempluschem 2020; 85:1325-1338. [PMID: 32567813 DOI: 10.1002/cplu.202000303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/02/2020] [Indexed: 11/07/2022]
Abstract
[((Diphenylphosphanyl)amino)carbonyl]ferrocene (1) has been synthesized and coordinated to light platinum metals, ruthenium, rhodium and palladium, in diverse coordination modes. Specifically, compound 1 was used to prepare the following phosphane complexes, [(η6 -mes)RuCl2 (1-κP)], [(η5 -C5 Me5 )RhCl2 (1-κP)], trans-[PdCl2 (1-κP)2 ], and [(LNC )PdCl(1-κP)] (mes=mesitylene, LNC =[2-(dimethylamino-κN)methyl]phenyl-κC1 ). They were subsequently converted into cationic O,P-chelate complexes by halide abstraction with AgClO4 and into neutral O,P-chelate complexes by deprotonation with potassium tert-butoxide. All coordination compounds and phosphane chalcogenides 1E (P-bound chalcogen atom E=O, S and Se), which were also synthesised, were structurally characterised using spectroscopic methods (IR, multinuclear NMR and ESI MS) and single-crystal X-ray diffraction analysis. The electrochemical behaviour of the prepared compounds was studied by cyclic voltammetry, and the (LNC )Pd-1 complexes were further studied by Mössbauer spectroscopy.
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Affiliation(s)
- Michal Navrátil
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Adam Alemayehu
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40, Prague, Czech Republic
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11
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Bárta O, Gyepes R, Císařová I, Alemayehu A, Štěpnička P. Synthesis and study of Fe → Pd interactions in unsymmetric Pd(ii) complexes with phosphinoferrocene guanidine ligands. Dalton Trans 2020; 49:4225-4229. [PMID: 32196051 DOI: 10.1039/d0dt00812e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Readily available phosphinoferrocene guanidines coordinate Pd(ii) as P,N-chelating or κ3P,N,Fe-bound ligands. As the latter, they give rise to the first donor-asymmetric complexes featuring Fe-Pd dative bonds, which were studied using direct (spectroscopic and electrochemical) methods and theoretical (DFT) approaches.
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Affiliation(s)
- Ondřej Bárta
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Róbert Gyepes
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Adam Alemayehu
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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12
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Škoch K, Vosáhlo P, Císařová I, Štěpnička P. Synthesis and characterisation of Pd(ii) and Au(i) complexes with mesoionic carbene ligands bearing phosphinoferrocene substituents and isomeric carbene moieites. Dalton Trans 2020; 49:1011-1021. [PMID: 31916562 DOI: 10.1039/c9dt04521j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
While numerous functional ligands combining phosphine and imidazole-2-ylidene (or imidazolin-2-ylidene) donor moieties have already been reported, the chemistry of the corresponding functional mesoionic carbenes (MIC) derived from 1,2,3-triazoles remains nearly untapped. This contribution describes the synthesis of two isomeric series of triazolium salts bearing 1'-(diphenylphosphino)ferrocenyl substituents by [3 + 2] cycloaddition of a P-protected phosphinoferrocene alkyne with azides, or alternatively of a P-protected phosphinoferrocene azide with terminal alkynes, and by subsequent methylation. These salts were used to synthesize structurally unique Pd(ii) complexes featuring a P,C-chelating triazolylidene carbene ligands and Au(i)-MIC complexes with free phosphine groups. The latter were further utilised to prepare Pd(ii)Au(i) heterometallic complexes containing bridging ferrocene phosphino-carbenes as structurally flexible, donor-unsymmetric metalloligands. In addition, the reactivity of the newly prepared, P-protected phosphinoferrocene alkyne Ph2PfcC[triple bond, length as m-dash]CH·BH3 (fc = ferrocene-1,1'-diyl) was investigated, and representatives from all reported compound classes were structurally characterised.
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Affiliation(s)
- Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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13
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Itazaki M, Matsutani T, Nochida T, Moriuchi T, Nakazawa H. Convenient synthesis of phosphinecarboxamide and phosphinecarbothioamide by hydrophosphination of isocyanates and isothiocyanates. Chem Commun (Camb) 2020; 56:443-445. [DOI: 10.1039/c9cc08329d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Convenient synthesis of phosphinecarboxamidein by hydrophosphination of isocyanates (and isothiocyanates) was achieved without catalyst and solvent. This system shows shorter reaction time, high yield, and good functional group tolerance.
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Affiliation(s)
- Masumi Itazaki
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Takanari Matsutani
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Tomoya Nochida
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Toshiyuki Moriuchi
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Hiroshi Nakazawa
- Department of Chemistry
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
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14
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Coughlin O, Krämer T, Benjamin SL. Diverse structure and reactivity of pentamethylcyclopentadienyl antimony(iii) cations. Dalton Trans 2020; 49:1726-1730. [DOI: 10.1039/d0dt00024h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rare examples of Sb(iii) cations which are not supported by coordinative bonds demonstrate Lewis acidic reactivity.
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Affiliation(s)
- Omar Coughlin
- Department of Chemistry and Forensics
- Nottingham Trent University
- Nottingham
- UK
| | - Tobias Krämer
- Department of Chemistry
- Maynooth University
- Maynooth
- Ireland
| | - Sophie L. Benjamin
- Department of Chemistry and Forensics
- Nottingham Trent University
- Nottingham
- UK
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15
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Horký F, Škoch K, Císařová I, Štěpnička P. Versatile coordination and C-H activation of a multi-donor phosphinoferrocene carboxamide ligand in Pd(ii) complexes. Dalton Trans 2019; 48:16412-16425. [PMID: 31642824 DOI: 10.1039/c9dt03646f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A multi-donor phosphinoferrocene carboxamide, FcCONHCH2CH2PPh2 (1, Fc = ferrocenyl), was prepared, converted into the corresponding phosphine oxide 1O and phosphine selenide 1Se and, mainly, studied as a ligand in Pd(ii) complexes. In its native form, amide 1 preferentially coordinated soft Pd(ii) as a simple phosphine, giving rise to mixtures of cis and trans-[PdX2(1-κP)2] (2; X = Cl (a), Br (b), and I (c)), wherein the isomer ratios depended on the auxiliary halide ligand or, alternatively, to the complex [(LNC)PdCl(1-κP)] (6, LNC = 2-[(dimethylamino)methyl-κN]phenyl-κC1). This coordination mode was nevertheless easily changed when creating a vacant coordination site at the palladium. Thus, treatment of 2a with NH4[PF6] in the presence of free 1 produced [PdCl(1-κP)3][PF6] (3), while complete halogen removal with a Ag(i) salt led to cationic complexes cis-[Pd(1-κ2O,P)2]X2 (4, X = CF3SO3 (a), ClO4 (b), BF4 (c)) or [(LNC)Pd(1-κ2O,P)]X (7a and 7b), containing seven-membered O,P-chelate rings. In contrast, amide nitrogen deprotonation with KOt-Bu followed by spontaneous intramolecular halogen substitution resulted in the transformation of 6 into the chelate complex [(LNC)Pd{(1- H)-κ2N,P}] (8) featuring a five-membered N,P-chelate ring, and in the conversion of 2a and 2b into the product of C-H bond activation [Pd{Fe(η5-C5H3CONCH2CH2PPh2-κ3C,N,P)(η5-C5H5)}(1-κP)] (5), with doubly chelating deprotonated 1. Importantly, complexes 2-4-5 and 6-7-8 were mutually interconverted in triads (by protonation/deprotonation and by halide addition/abstraction), which highlights the flexible coordination and chemical stability of ligand 1. The crystal structures of 1O·½H2O, trans-2a·MeCN, trans-2b·3C2H4Cl2, trans-2c·2.5C2H4Cl2, 4a·CH2Cl2, 5·3CHCl3·Et2O, and 8 were determined by single-crystal X-ray diffraction analysis, and the representative compounds were studied by cyclic voltammetry.
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Affiliation(s)
- Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Karel Škoch
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
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16
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Ye L, Rouxel JR, Asban S, Rösner B, Mukamel S. Probing Molecular Chirality by Orbital-Angular-Momentum-Carrying X-ray Pulses. J Chem Theory Comput 2019; 15:4180-4186. [PMID: 31125229 DOI: 10.1021/acs.jctc.9b00346] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A twisted X-ray beam with orbital angular momentum is employed in a theoretical study to probe molecular chirality. A nonlocal response description of the matter-field coupling is adopted to account for the field short wavelength and the structured spatial profile. We use the minimal-coupling Hamiltonian, which implicitly takes into account the multipole contributions to all orders. The combined interactions of the spin and orbital angular momentum of the X-ray beam give rise to circular-helical dichroism signals, which are stronger than ordinary circular dichroism signals, and may serve as a useful tool for the study of molecular chirality in the X-ray regime.
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Affiliation(s)
- Lyuzhou Ye
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
| | - Jérémy R Rouxel
- Laboratory of Ultrafast Spectroscopy , École Polytechnique Fédérale de Lausanne , Lausanne CH-1015 , Switzerland.,Paul Scherrer Institut , Villigen-PSI 5232 , Switzerland
| | - Shahaf Asban
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
| | | | - Shaul Mukamel
- Department of Chemistry and Department of Physics and Astronomy , University of California , Irvine , California 92697 , United States
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Mehlmann P, Dielmann F. Switching the Electron-Donating Ability of Phosphines through Proton-Responsive Imidazolin-2-ylidenamino Substituents. Chemistry 2019; 25:2352-2357. [PMID: 30506604 DOI: 10.1002/chem.201805540] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Indexed: 11/06/2022]
Abstract
Stimuli-responsive ancillary ligands are valuable tools to control the activity and selectivity of transition-metal catalysts. The synthesis and characterization of a series of metal complexes containing phosphines with proton-responsive imidazolin-2-ylidenamino substituents are reported. Determination of the ligand-donor properties revealed that protonation of each substituent increases the Tolman electronic parameter (TEP) of the phosphine by 22 cm-1 , hence allowing for switching of the electron-donor power of phosphine 2 within an unprecedented range (ΔTEP=43.4 cm-1 ).
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Affiliation(s)
- Paul Mehlmann
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Fabian Dielmann
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
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Radal L, Vosáhlo P, Roger J, Cattey H, Amardeil R, Císařová I, Štěpnička P, Pirio N, Hierso J. Highly Functionalized Brønsted Acidic/Lewis Basic Hybrid Ferrocene Ligands: Synthesis and Coordination Chemistry. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Léa Radal
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Petr Vosáhlo
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 128 40 Prague Czech Republic
| | - Nadine Pirio
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) UMR CNRS 6302 Université de Bourgogne Franche‐Comté (UBFC) 9 avenue Alain Savary 21078 Dijon France
- Institut Universitaire de France 103 Boulevard Saint Michel 75005 Paris Cedex France
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Vosáhlo P, Schulz J, Škoch K, Císařová I, Štěpnička P. Synthesis and characterisation of palladium(ii) complexes with hybrid phosphinoferrocene ligands bearing additional O-donor substituents. NEW J CHEM 2019. [DOI: 10.1039/c9nj00298g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coordination of phosphinoferrocene ligands with O-donor substituents to Pd(ii) is affected by the nature of the oxygen functions and may results in hemilabile species.
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Affiliation(s)
- Petr Vosáhlo
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague
- Czech Republic
| | - Jiří Schulz
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague
- Czech Republic
| | - Karel Škoch
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague
- Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague
- Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 40 Prague
- Czech Republic
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20
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Zábranský M, Císařová I, Trzeciak AM, Alsalahi W, Štěpnička P. Synthesis, Structural Characterization, and Hydroformylation Activity of Rhodium(I) Complexes with a Polar Phosphinoferrocene Sulfonate Ligand. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00800] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Zábranský
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Anna M. Trzeciak
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland
| | - Waleed Alsalahi
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
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21
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Alabau RG, Esteruelas MA, Martínez A, Oliván M, Oñate E. Base-Free and Acceptorless Dehydrogenation of Alcohols Catalyzed by an Iridium Complex Stabilized by a N,N,N-Osmaligand. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00380] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Roberto G. Alabau
- Departamento de Química Inorgánica − Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) − Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica − Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) − Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Antonio Martínez
- Departamento de Química Inorgánica − Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) − Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica − Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) − Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica − Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) − Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
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22
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Francos J, Borge J, Conejero S, Cadierno V. Platinum Complexes with a Phosphino-Oxime/Oximate Ligand. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800398] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC); Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8, E -33006 Oviedo Spain
| | - Javier Borge
- Departamento de Química Física y Analítica; Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Química; Universidad de Oviedo; Julián Clavería 8, E -33006 Oviedo Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica; Centro de Innovación en Química Avanzada (ORFEO-CINQA); CSIC and Universidad de Sevilla; Avda. Américo Vespucio 49, E -41092 Sevilla Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC); Centro de Innovación en Química Avanzada (ORFEO-CINQA); Departamento de Química Orgánica e Inorgánica; Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería 8, E -33006 Oviedo Spain
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23
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González-Pelayo S, López E, Borge J, de-los-Santos-Álvarez N, López LA. Ferrocene-Decorated Phenol Derivatives by Trapping ortho
-Quinone Methide Intermediates with Ferrocene. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800396] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Silvia González-Pelayo
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 6 33006- Oviedo Spain
| | - Enol López
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 6 33006- Oviedo Spain
| | - Javier Borge
- Departamento de Química Física e Analítica and Instituto Universidad de Oviedo; Julián Clavería, 6 33006- Oviedo Spain
| | - Noemí de-los-Santos-Álvarez
- Departamento de Química Física e Analítica and Instituto Universidad de Oviedo; Julián Clavería, 6 33006- Oviedo Spain
| | - Luis A. López
- Departamento de Química Orgánica e Inorgánica and Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 6 33006- Oviedo Spain
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Zábranský M, Císařová I, Štěpnička P. Synthesis, Coordination, and Catalytic Use of 1′-(Diphenylphosphino)ferrocene-1-sulfonate Anion. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00178] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Martin Zábranský
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
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25
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Charvátová H, Vašíček T, Císařová I, Štěpnička P. Synthesis and structural characterization of ferrocene phosphines modified with polar pendants and their palladium(II) complexes. Part II: N -aminocarbonyl and N -acyl phosphinoferrocene carbohydrazides. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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