1
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Feng Z, Wang L, Mohammed SNBS, Rao B, Kinjo R. Reactivity of Cyclic (Alkyl)(amino)germylene towards Copper(I) and Gold(I) Complexes. Chem Asian J 2023; 18:e202300634. [PMID: 37641951 DOI: 10.1002/asia.202300634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 08/31/2023]
Abstract
The reactions of cyclic (alkyl)(amino)germylenes (CAAGe) with copper(I) and gold(I) complexes were investigated. CAAGe (1) reacts with CuBr(SMe2 ) leading to a tetrameric germylene complex [CAAGeCuBr]4 (2), whereas CAAGe (3) undergoes Au-Cl bond insertion with LAuCl (L=phosphine or N-heterocyclic carbene) to afford germanium gold(I) complexes (5 and 6). Chlorine abstraction of 6 gives the cationic germylene gold(I) complex 7.
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Affiliation(s)
- Zhongtao Feng
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Liliang Wang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | | | - Bin Rao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Rei Kinjo
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
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2
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Cabeza JA, García F, García-Álvarez P, García-Soriano R, Pérez-Carreño E. Synthesis and Some Coordination Chemistry of Phosphane-Difunctionalized Bis(amidinato)-Heavier Tetrylenes: A Previously Unknown Class of PEP Tetrylenes (E = Ge and Sn). Inorg Chem 2023; 62:15502-15509. [PMID: 37696246 PMCID: PMC10523440 DOI: 10.1021/acs.inorgchem.3c01953] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Indexed: 09/13/2023]
Abstract
The bis(amidinato)-heavier tetrylenes E(bzamP)2 (E = Ge (2a) and Sn (2b); bzamP = N-isopropyl-N'-(diphenylphosphanylethyl)benzamidinate), which are equipped with one heavier tetrylene (germylene or stannylene) and two phosphane fragments (one on each amidinate moiety) as coordinable groups, have been synthesized from the benzamidinum salt [H2bzamP]Cl and GeCl2(dioxane) or SnCl2 in 2:1 mol ratio. A preliminary inspection of their coordination chemistry has shown that their amidinate group can also be involved in the bonding with the metal atoms as tridentate ENP and tetradentate PENP' coordination modes have been observed for the ECl(bzamP)2 ligand of [Ir{κ3E,N,P-ECl(bzamP)2}(cod)] (E = Ge (3a) and Sn (3b); cod = η4-1,5-cyclooctadiene) and the E(bzamP)2 ligand of [Ni{κ4E,N,P,P'-E(bzamP)2}] (E = Ge (4a) and Sn (4b)), which are products of reactions of 2a and 2b with [IrCl(cod)]2 (1:0.5 mol ratio) and [Ni(cod)2] (1:1 mol ratio), respectively. These products contain a 5-membered NCNEM ring that results from the insertion of the metal M atom into an E-N bond of 2a and 2b. Additionally, while iridium(I) complexes 3a and 3b are chloridotetryl derivatives (insertion of the tetrylene E atom into the Ir-Cl bond has also occurred) that have an uncoordinated phosphane group, nickel(0) complexes 4a and 4b contain a tetrylene fragment that, maintaining the lone pair, behaves as a σ-acceptor (Z-type) ligand.
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Affiliation(s)
- Javier A. Cabeza
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Felipe García
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
- School
of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Pablo García-Álvarez
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Rubén García-Soriano
- Departamento
de Química Orgánica e Inorgánica, Centro de Innovación
en Química Avanzada ORFEO−CINQA, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Enrique Pérez-Carreño
- Departamento
de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Spain
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3
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Laglera-Gándara C, Ríos P, Fernández-de-Córdova FJ, Barturen M, Fernández I, Conejero S. σ-GeH and Germyl Cationic Pt(II) Complexes. Inorg Chem 2022; 61:20848-20859. [PMID: 36322561 PMCID: PMC9949701 DOI: 10.1021/acs.inorgchem.2c03186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The low electron count Pt(II) complexes [Pt(NHC')(NHC)][BArF] (where NHC is a N-heterocyclic carbene ligand and NHC' its metalated form) react with tertiary hydrogermanes HGeR3 at room temperature to generate the 14-electron platinum(II) germyl derivatives [Pt(GeR3)(NHC)2][BArF]. Low-temperature NMR studies allowed us to detect and characterize spectroscopically some of the σ-GeH intermediates [Pt(η2-HGeR3)(NHC')(NHC)][BArF] that evolve into the platinum-germyl species. One of these compounds has been characterized by X-ray diffraction studies, and the interaction of the H-Ge bond with the platinum center has been analyzed in detail by computational methods, which suggest that the main contribution is the donation of the H-Ge to a σ*(Pt-C) orbital, but backdonation from the platinum to the σ*(Ge-H) orbital is significant. Primary and secondary hydrogermanes also produce the corresponding platinum-germyl complexes, a result that contrasts with the reactivity observed with primary silanes, in which carbon-silicon bond-forming reactions have been reported. According to density functional theory calculations, the formation of Pt-Ge/C-H bonds is both kinetically and thermodynamically preferred over the competitive reaction pathway leading to Pt-H/C-Ge bonds.
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Affiliation(s)
- Carlos
J. Laglera-Gándara
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Pablo Ríos
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain,
| | - Francisco José Fernández-de-Córdova
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Marina Barturen
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica, Centro de Innovación en Química Avanzada
(ORFEO-CINQA), CSIC and Universidad de Sevilla, Sevilla 41092, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica I y Centro de Innovación
en Química Avanzada (ORFEO-CINQA), facultad de Químicas, Universidad Complutense de Madrid, Madrid 28040, 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, Sevilla 41092, Spain,
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4
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Komuro T, Nakajima Y, Takaya J, Hashimoto H. Recent progress in transition metal complexes supported by multidentate ligands featuring group 13 and 14 elements as coordinating atoms. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Cabeza JA, Fernández‐Colinas JM, García‐Álvarez J, García‐Álvarez P, Laglera‐Gándara CJ, Ramos‐Martín M. Dipyrromethane-Based PGeP Pincer Germyl Rhodium Complexes. Chemistry 2022; 28:e202200847. [PMID: 35612568 PMCID: PMC9545308 DOI: 10.1002/chem.202200847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Indexed: 11/29/2022]
Abstract
A family of germyl rhodium complexes derived from the PGeP germylene 2,2'-bis(di-isopropylphosphanylmethyl)-5,5'-dimethyldipyrromethane-1,1'-diylgermanium(II), Ge(pyrmPi Pr2 )2 CMe2 (1), has been prepared. Germylene 1 reacted readily with [RhCl(PPh3 )3 ] and [RhCl(cod)(PPh3 )] (cod=1,5-cyclooctadiene) to give, in both cases, the PGeP-pincer chloridogermyl rhodium(I) derivative [Rh{κ3 P,Ge,P-GeCl(pyrmPi Pr2 )2 CMe2 }(PPh3 )] (2). Similarly, the reaction of 1 with [RhCl(cod)(MeCN)] afforded [Rh{κ3 P,Ge,P-GeCl(pyrmPi Pr2 )2 CMe2 }(MeCN)] (3). The methoxidogermyl and methylgermyl rhodium(I) complexes [Rh{κ3 P,Ge,P-GeR(pyrmPi Pr2 )2 CMe2 }(PPh3 )] (R=OMe, 4; Me, 5) were prepared by treating complex 2 with LiOMe and LiMe, respectively. Complex 5 readily reacted with CO to give the carbonyl rhodium(I) derivative [Rh{κ3 P,Ge,P-GeR(pyrmPi Pr2 )2 CMe2 }(CO)] (6), with HCl, HSnPh3 and Ph2 S2 rendering the pentacoordinate methylgermyl rhodium(III) complexes [RhHX{κ3 P,Ge,P-GeMe(pyrmPi Pr2 )2 CMe2 }] (X=Cl, 7; SnPh3 , 8) and [Rh(SPh)2 {κ3 P,Ge,P-GeMe(pyrmPi Pr2 )2 CMe2 }] (9), respectively, and with H2 to give the hexacoordinate derivative [RhH2 {κ3 P,Ge,P-GeMe(pyrmPi Pr2 )2 CMe2 }(PPh3 )] (10). Complexes 3 and 5 are catalyst precursors for the hydroboration of styrene, 4-vinyltoluene and 4-vinylfluorobenzene with catecholborane under mild conditions.
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Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
| | - José M. Fernández‐Colinas
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
| | - Joaquín García‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
| | - Pablo García‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
| | - Carlos J. Laglera‐Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
| | - Marina Ramos‐Martín
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)Departamento de Química Orgánica e InorgánicaUniversidad de Oviedo33071OviedoSpain
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6
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Daniels CL, Gi E, Atterberry BA, Blome-Fernández R, Rossini AJ, Vela J. Phosphine Ligand Binding and Catalytic Activity of Group 10-14 Heterobimetallic Complexes. Inorg Chem 2022; 61:6888-6897. [PMID: 35481778 DOI: 10.1021/acs.inorgchem.2c00229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Heterobimetallic complexes have attracted much interest due to their broad range of structures and reactivities as well as unique catalytic abilities. Additionally, these complexes can be utilized as single-source precursors for the synthesis of binary intermetallic compounds. An example is the family of bis(pyridine-2-thiolato)dichloro-germanium and tin complexes of group 10 metals (Pd and Pt). The reactivity of these heterobimetallic complexes is highly tunable through substitution of the group 14 element and the neutral ligand bound to the transition metal. Here, we study the binding energies of three different phosphorous-based ligands, PR3 (R = Bu, Ph, and OPh) by density functional theory and restricted Hartree-Fock methods. The PR3 ligand-binding energies follow the trend of PBu3 > PPh3 > P(OPh)3, in agreement with their sigma-bonding ability. These results are confirmed by ligand exchange experiments monitored with 31P NMR spectroscopy, in which a weaker binding PR3 ligand is replaced with a stronger one. Furthermore, we demonstrate that the heterobimetallic complexes are active catalysts in the Negishi coupling reaction, where stronger binding PR3 ligands inhibit access to an active site at the metal center. Similar strategies could be applied to other complexes to better understand their ligand-binding energetics and predict their reactivity as both precursors and catalysts.
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Affiliation(s)
- Carena L Daniels
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Eunbyeol Gi
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Benjamin A Atterberry
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | | | - Aaron J Rossini
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Javier Vela
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
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7
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Karimi M, Gabbaï FP. Photoreductive Elimination of PhCl Across the Dinuclear Core of a [GePt] VI Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mohammadjavad Karimi
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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8
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Cabeza JA, Fernández I, García-Álvarez P, García-Soriano R, Laglera-Gándara CJ, Toral R. Stannylenes based on pyrrole-phosphane and dipyrromethane-diphosphane scaffolds: syntheses and behavior as precursors to PSnP pincer palladium(II), palladium(0) and gold(I) complexes. Dalton Trans 2021; 50:16122-16132. [PMID: 34668918 DOI: 10.1039/d1dt02967c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Ditertbutylphosphanylmethylpyrrole (H2pyrmPtBu2) and 2,2'-bis(diisopropylphosphanylmethyl)-5,5'-dimethyldipyrromethane ((HpyrmPiPr2)2CMe2) have been used to synthesize new P-donor-stabilized stannylenes in which the Sn atom is attached to one, SnCl(HpyrmPtBu2) (1) and Sn{N(SiMe3)2}(HpyrmPtBu2) (2), or two pyrrolyl-phosphane scaffolds, Sn(HpyrmPtBu2)2 (3), or to a dipyrromethane-diphosphane scaffold, Sn(pyrmPiPr2)2CMe2 (4). It has been found that stannylenes 3 and 4 are excellent precursors to transition metal complexes containing PSnP pincer-type ligands. Their reactions with chlorido transition metal complexes have afforded [PdCl{κ3P,Sn,P-SnCl(HpyrmPtBu2)2}] (6), [PdCl{κ3P,Sn,P-SnCl(pyrmPiPr2)2CMe2}] (7) and [Au{κ3P,Sn,P-SnCl(HpyrmPtBu2)2}] (8), which contain a PSnP pincer-type chloridostannyl ligand. While complexes 6 and 7 are square-planar palladium(II) complexes, compound 8 is an uncommon gold(I) complex having a T-shaped coordination geometry with a very long Sn-Au bond (3.120 Å). The T-shaped palladium(0) complex [Pd{κ3P,Sn,P-Sn(pyrmPiPr2)2CMe2}] (9), which contains an unprecedented PSnP pincer-type stannylene that behaves as a Z-type (σ-acceptor) ligand, has been prepared from 4 and [Pd(η3-C3H5)(η5-C5H5)].
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Affiliation(s)
- Javier A Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
| | - Israel Fernández
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
| | - Rubén García-Soriano
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
| | - Carlos J Laglera-Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
| | - Rubén Toral
- Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
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9
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Karimi M, Tabei ES, Fayad R, Saber MR, Danilov EO, Jones C, Castellano FN, Gabbaï FP. Photodriven Elimination of Chlorine From Germanium and Platinum in a Dinuclear Pt
II
→Ge
IV
Complex. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Elham S. Tabei
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - Remi Fayad
- Department of Chemistry North Carolina State University Raleigh NC 27695-8204 USA
| | - Mohamed R. Saber
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - Evgeny O. Danilov
- Department of Chemistry North Carolina State University Raleigh NC 27695-8204 USA
| | - Cameron Jones
- School of Chemistry Monash University PO Box 23 Melbourne VIC 3800 Australia
| | - Felix N. Castellano
- Department of Chemistry North Carolina State University Raleigh NC 27695-8204 USA
| | - François P. Gabbaï
- Department of Chemistry Texas A&M University College Station TX 77843 USA
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10
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Karimi M, Tabei ES, Fayad R, Saber MR, Danilov EO, Jones C, Castellano FN, Gabbaï FP. Photodriven Elimination of Chlorine From Germanium and Platinum in a Dinuclear Pt II →Ge IV Complex. Angew Chem Int Ed Engl 2021; 60:22352-22358. [PMID: 34399026 DOI: 10.1002/anie.202107485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/14/2021] [Indexed: 11/08/2022]
Abstract
Searching for a connection between the two-electron redox behavior of Group-14 elements and their possible use as platforms for the photoreductive elimination of chlorine, we have studied the photochemistry of [(o-(Ph2 P)C6 H4 )2 GeIV Cl2 ]PtII Cl2 and [(o-(Ph2 P)C6 H4 )2 ClGeIII ]PtIII Cl3 , two newly isolated isomeric complexes. These studies show that, in the presence of a chlorine trap, both isomers convert cleanly into the platinum germyl complex [(o-(Ph2 P)C6 H4 )2 ClGeIII ]PtI Cl with quantum yields of 1.7 % and 3.2 % for the GeIV -PtII and GeIII -PtIII isomers, respectively. Conversion of the GeIV -PtII isomer into the platinum germyl complex is a rare example of a light-induced transition-metal/main-group-element bond-forming process. Finally, transient-absorption-spectroscopy studies carried out on the GeIII -PtIII isomer point to a ligand arene-Cl. charge-transfer complex as an intermediate.
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Affiliation(s)
| | - Elham S Tabei
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Remi Fayad
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204, USA
| | - Mohamed R Saber
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Evgeny O Danilov
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204, USA
| | - Cameron Jones
- School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800, Australia
| | - Felix N Castellano
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204, USA
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
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11
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Cabeza JA, García‐Álvarez P, Laglera‐Gándara CJ, Pérez‐Carreño E. Dipyrromethane‐Based PGeP Pincer Methylgermyl and Methoxidogermyl Nickel and Palladium Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
| | - Pablo García‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
| | - Carlos J. Laglera‐Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
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12
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Keil PM, Szilvási T, Hadlington TJ. Reversible metathesis of ammonia in an acyclic germylene-Ni 0 complex. Chem Sci 2021; 12:5582-5590. [PMID: 34168794 PMCID: PMC8179610 DOI: 10.1039/d1sc00450f] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/05/2021] [Indexed: 11/21/2022] Open
Abstract
Carbenes, a class of low-valent group 14 ligand, have shifted the paradigm in our understanding of the effects of supporting ligands in transition-metal reactivity and catalysis. We now seek to move towards utilizing the heavier group 14 elements in effective ligand systems, which can potentially surpass carbon in their ability to operate via 'non-innocent' bond activation processes. Herein we describe our initial results towards the development of scalable acyclic chelating germylene ligands (viz. 1a/b), and their utilization in the stabilization of Ni0 complexes (viz. 4a/b), which can readily and reversibly undergo metathesis with ammonia with no net change of oxidation state at the GeII and Ni0 centres, through ammonia bonding at the germylene ligand as opposed to the Ni0 centre. The DFT-derived metathesis mechanism, which surprisingly demonstrates the need for three molecules of ammonia to achieve N-H bond activation, supports reversible ammonia binding at GeII, as well as the observed reversibility in the overall reaction.
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Affiliation(s)
- Philip M Keil
- Department of Chemistry, Technical University Munich Lichtenbergstraße 4 85747 Garching Germany
| | - Tibor Szilvási
- Department of Chemical and Biological Engineering, University of Alabama Tuscaloosa AL 35487 USA
| | - Terrance J Hadlington
- Department of Chemistry, Technical University Munich Lichtenbergstraße 4 85747 Garching Germany
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13
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Arauzo A, Cabeza JA, Fernández I, García‐Álvarez P, García‐Rubio I, Laglera‐Gándara CJ. Reactions of Late First‐Row Transition Metal (Fe‐Zn) Dichlorides with a PGeP Pincer Germylene. Chemistry 2021; 27:4985-4992. [DOI: 10.1002/chem.202005289] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Ana Arauzo
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza 50009 Zaragoza Spain
| | - Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
| | - Israel Fernández
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica I Facultad de Ciencias Químicas Universidad Complutense de Madrid 28040 Madrid Spain
| | - Pablo García‐Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
| | - Inés García‐Rubio
- Instituto de Nanociencia y Materiales de Aragón (INMA) CSIC-Universidad de Zaragoza 50009 Zaragoza Spain
- Academia General Militar Centro Universitario de la Defensa 50090 Zaragoza Spain
| | - Carlos J. Laglera‐Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) Departamento de Química Orgánica e Inorgánica Universidad de Oviedo 33071 Oviedo Spain
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14
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Arsenyeva KV, Ershova IV, Chegerev MG, Cherkasov AV, Aysin RR, Lalov AV, Fukin GK, Piskunov AV. Reactivity of O,N-heterocyclic germylene and stannylene towards μ-dithio-bis(tricarbonyliron). J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121524] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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Cabeza JA, García-Álvarez P, Laglera-Gándara CJ, Pérez-Carreño E. Phosphane-functionalized heavier tetrylenes: synthesis of silylene- and germylene-decorated phosphanes and their reactions with Group 10 metal complexes. Dalton Trans 2020; 49:8331-8339. [PMID: 32515774 DOI: 10.1039/d0dt01727b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stable phosphane-functionalized heavier tetrylenes E(tBu2bzam)pyrmPtBu2 (E = Si (1Si), Ge (1Ge); tBu2bzam = N,N'-ditertbutylbenzamidinate; HpyrmPtBu2 = ditertbutyl(2-pyrrolylmethyl)phosphane) have been prepared by reacting the amidinatotetrylenes E(tBu2bzam)Cl (E = Si, Ge) with LipyrmPtBu2. The reactions of 1Si and 1Ge with selected M0 and MII (M = Ni, Pd, Pt) metal precursors have allowed the synthesis of square-planar [MCl2{κ2E,P-E(tBu2bzam)pyrmPtBu2}] (M = Ni, Pd, Pt; E = Si, Ge), tetrahedral [Ni{κ2E,P-E(tBu2bzam)pyrmPtBu2}(cod)] (E = Si, Ge; cod = 1,5-cyclooctadiene) and triangular [M{κ2E,P-E(tBu2bzam)pyrmPtBu2}(PPh3)] (M = Pd, Pt; E = Si, Ge) complexes, showing that 1Si and 1Ge are excellent Si,P- and Ge,P-chelating ligands that, due to their large steric bulk, are able to stabilize three-coordinate Pd0 and Pt0 complexes.
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Affiliation(s)
- Javier A Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, 33071 Oviedo, Spain.
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16
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Kleinhans G, Chan AKW, Leung MY, Liles DC, Fernandes MA, Yam VWW, Fernández I, Bezuidenhout DI. Synthesis and Photophysical Properties of T-Shaped Coinage-Metal Complexes. Chemistry 2020; 26:6993-6998. [PMID: 32182384 PMCID: PMC7317956 DOI: 10.1002/chem.202000726] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Indexed: 11/28/2022]
Abstract
The photophysical properties of a series of T‐shaped coinage d10 metal complexes, supported by a bis(mesoionic carbene)carbazolide (CNC) pincer ligand, are explored. The series includes a rare new example of a tridentate T‐shaped AgI complex. Post‐complexation modification of the AuI complex provides access to a linear cationic AuI complex following ligand alkylation, or the first example of a cationic square planar AuIII−F complex from electrophilic attack on the metal centre. Emissions ranging from blue (CuI) to orange (AgI) are obtained, with variable contributions of thermally‐dependent fluorescence and phosphorescence to the observed photoluminescence. Green emissions are observed for all three gold complexes (neutral T‐shaped AuI, cationic linear AuI and square planar cationic AuIII). The higher quantum yield and longer decay lifetime of the linear gold(I) complex are indicative of increased phosphorescence contribution.
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Affiliation(s)
- George Kleinhans
- Chemistry Department, University of Pretoria, Private X20, Hatfield, 0028, South Africa.,Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
| | - Alan K-W Chan
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Ming-Yi Leung
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - David C Liles
- Chemistry Department, University of Pretoria, Private X20, Hatfield, 0028, South Africa
| | - Manuel A Fernandes
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa
| | - Vivian W-W Yam
- Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Israel Fernández
- Departamento de Química Orgánica I, Centro de Innovación en Química Avanzado (ORFEO-CINQA) and, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Daniela I Bezuidenhout
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg, 2050, South Africa.,Laboratory of Inorganic Chemistry, Environmental and Chemical Engineering, University of Oulu, P. O. Box 3000, 90014, Oulu, Finland
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17
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Cabeza JA, García-Álvarez P, Laglera-Gándara CJ. The Transition Metal Chemistry of PGeP and PSnP Pincer Heavier Tetrylenes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901248] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA network); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA network); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
| | - Carlos J. Laglera-Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA network); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33071 Oviedo Spain
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18
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Cabeza JA, García-Álvarez P, Laglera-Gándara CJ, Pérez-Carreño E. A Z-type PGeP pincer germylene ligand in a T-shaped palladium(0) complex. Chem Commun (Camb) 2020; 56:14095-14097. [DOI: 10.1039/d0cc06614a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An unusual T-shaped palladium(0) complex having a σ-acceptor (Z-type) germylene scaffold has been prepared from a dipyrromethane-based PGeP germylene.
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Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo 33071
- Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo 33071
- Spain
| | - Carlos J. Laglera-Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo 33071
- Spain
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19
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Sinhababu S, Sharma MK, Mahawar P, Kaur S, Singh VK, Paliwal A, Yadav D, Kashyap HK, Nagendran S. Germylene stabilized group 12 metal complexes and their reactivity with chalcogens. Dalton Trans 2019; 48:16366-16376. [DOI: 10.1039/c8dt04589e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This manuscript reports the first examples of germylene stabilized cadmium complexes 3, 6, and 7, and novel germylene zinc complexes 2 and 5.
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Affiliation(s)
- Soumen Sinhababu
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | | | - Pritam Mahawar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Supreet Kaur
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Vivek Kumar Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Akhil Paliwal
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Dhirendra Yadav
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Hemant K. Kashyap
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
| | - Selvarajan Nagendran
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110 016
- India
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20
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Cabeza JA, Fernández I, García-Álvarez P, Laglera-Gándara CJ. A dipyrromethane-based diphosphane–germylene as precursor to tetrahedral copper(i) and T-shaped silver(i) and gold(i) PGeP pincer complexes. Dalton Trans 2019; 48:13273-13280. [DOI: 10.1039/c9dt03045j] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A dipyrromethane-based PGeP germylene has allowed the synthesis of unusual tetrahedral copper(i) and T-shaped silver(i) and gold(i) germyl complexes.
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Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
| | - Israel Fernández
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica I
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- 28040 Madrid
- Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
| | - Carlos J. Laglera-Gándara
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
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