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Butler IR, Beaumont M, Bruce MI, Zaitseva NN, Iggo JA, Robertson C, Horton PN, Coles SJ. Synthesis and Structures of 1,1′,2-Tribromoferrocene, 1,1′,2,2′-Tetrabromoferrocene, 1,1′,2,2′-Tetrabromoruthenocene: Expanding the Range of Precursors for the Metallocene Chemist’s Toolkit. Aust J Chem 2021. [DOI: 10.1071/ch19184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The synthesis, characterisation, and isolation of 1,1′,2-tribromoferrocene and 1,1′,2,2′-tetrabromoferrocene, which are key synthons in ferrocene chemistry, are described. These compounds are prepared using α-halide assisted lithiation. The crystal structures of 1,1′,2-tribromoferrocene, 1,1′,2,2′-tetrabromoferrocene, 1,1′-dibromoruthenocene, and 1,1′,2,2′-tetrabromoruthenocene have been determined and are reported together with a brief discussion of the intramolecular forces involved in the crystal structures.
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Bruña S, González-Vadillo AM, Ferrández M, Perles J, Montero-Campillo MM, Mó O, Cuadrado I. Formation of unexpected silicon- and disiloxane-bridged multiferrocenyl derivatives bearing Si-O-CH[double bond, length as m-dash]CH 2 and Si-(CH 2) 2C(CH 3) 3 substituents via cleavage of tetrahydrofuran and trapping of its ring fragments. Dalton Trans 2017; 46:11584-11597. [PMID: 28766631 DOI: 10.1039/c7dt02286g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The formation of a family of silicon- and siloxane-bridged multiferrocenyl derivatives carrying different functional groups attached to silicon, including Fc2(CH3)3C(CH2)2SiCH[double bond, length as m-dash]CH2 (5), Fc2(CH2[double bond, length as m-dash]CH-O)SiCH[double bond, length as m-dash]CH2 (6), Fc2(OH)SiCH[double bond, length as m-dash]CH2 (7), Fc2(CH2[double bond, length as m-dash]CH-O)Si-O-Si(O-CH[double bond, length as m-dash]CH2)Fc2 (8) and Fc2(CH2[double bond, length as m-dash]CH-O)Si-O-SiFc3 (9) is described. Silyl vinyl ether molecules 6, 8 and 9 and the heteroleptic vinylsilane 5 resulted from the competing metathesis reaction of lithioferrocene (FcLi), CH2[double bond, length as m-dash]CH-OLi or (CH3)3C(CH2)2Li with the corresponding multifunctional chlorosilane, Cl3SiCH[double bond, length as m-dash]CH2 or Cl3Si-O-SiCl3. The last two organolithium species have been likely formed in situ by fragmentation of the tetrahydrofuran solvent. Diferrocenylvinyloxyvinylsilane 6 is noteworthy since it represents a rare example of a redox-active silyl mononomer in which two different C[double bond, length as m-dash]C polymerisable groups are directly connected to silicon. The molecular structures of the silicon-containing multiferrocenyl species 5, 6, 8 and 9 have been investigated by single-crystal X-ray diffraction studies, demonstrating the capture and storage processes of two ring fragments resulting from the cleavage of cyclic THF in redox-active and stable crystalline organometallic compounds. From electrochemical studies we found that by changing the anion of the supporting electrolyte from [PF6]- to [B(C6F5)4]-, the redox behaviour of tetrametallic disiloxane 8 can be switched from a poorly resolved multistep redox process to four consecutive well-separated one-electron oxidations, corresponding to the sequential oxidation of the four ferrocenyl moieties.
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Affiliation(s)
- Sonia Bruña
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Spain
| | - Ana Mª González-Vadillo
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
| | - Marta Ferrández
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
| | - Josefina Perles
- Laboratorio de Difracción de Rayos X de Monocristal, Servicio Interdepartamental de Investigación (SIDI), Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - M Merced Montero-Campillo
- Departamento de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Otilia Mó
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Spain and Departamento de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Spain
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3
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Bruña S, Garrido-Castro AF, Perles J, Montero-Campillo MM, Mó O, Kaifer AE, Cuadrado I. Multi-Ferrocene-Containing Silanols as Redox-Active Anion Receptors. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
| | | | | | | | | | - Angel E. Kaifer
- Center
for Supramolecular Science and Department of Chemistry, University of Miami, Coral Gables, Florida 33124-0431, United States
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Affiliation(s)
- Joyce Y. Corey
- Department of Chemistry and
Biochemistry, University of Missouri—St. Louis, One University
Drive, St. Louis, Missouri 63121, United States
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5
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Kim J, Kim Y, Sinha I, Park K, Kim SH, Lee Y. The unusual hydridicity of a cobalt bound Si–H moiety. Chem Commun (Camb) 2016; 52:9367-70. [DOI: 10.1039/c6cc03983a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A paramagnetic cobalt–SiH intermediate possessing the Co–(η1-H–Si) moiety shows unusual Si–H bond activation studied by ENDOR, XRD and DFT.
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Affiliation(s)
- Jin Kim
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Yujeong Kim
- Western Seoul Centre
- Korea Basic Science Institute
- Seoul 03759
- Republic of Korea
- Department of Chemistry and Nano Science
| | - Indranil Sinha
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
- Centre for Catalytic Hydrocarbon Functionalizations
| | - Koeun Park
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
| | - Sun Hee Kim
- Western Seoul Centre
- Korea Basic Science Institute
- Seoul 03759
- Republic of Korea
- Department of Chemistry and Nano Science
| | - Yunho Lee
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- Republic of Korea
- Centre for Catalytic Hydrocarbon Functionalizations
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Bruña S, Martínez-Montero I, González-Vadillo AM, Martín-Fernández C, Montero-Campillo MM, Mó O, Cuadrado I. Ferrocene and Silicon-Containing Oxathiacrown Macrocycles and Linear Oligo-Oxathioethers Obtained via Thiol–Ene Chemistry of a Redox-Active Bifunctional Vinyldisiloxane. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01683] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Sonia Bruña
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Ignacio Martínez-Montero
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Ana M González-Vadillo
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Carlos Martín-Fernández
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - M. Merced Montero-Campillo
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Otilia Mó
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química Inorgánica, Facultad de Ciencias and ‡Departamento
de Química, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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7
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Saloman S, Hildebrandt A, Korb M, Schwind M, Lang H. Electronic Tuneable Dynamic and Electrochemical Behavior ofN-(Diferrocenylmethylene)anilines. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Montero-Campillo MM, Bruña S, Cuadrado I, Mó O. Intervalence charge transfer across noncovalent interactions on vinyl silyl bridged biferrocenyl compounds. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2014.08.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Enrı́quez A, González-Vadillo AM, Martı́nez-Montero I, Bruña S, Leemans L, Cuadrado I. Efficient Thiol–Yne Click Chemistry of Redox-Active Ethynylferrocene. Organometallics 2014. [DOI: 10.1021/om501110w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alejandra Enrı́quez
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Ana Ma. González-Vadillo
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Ignacio Martı́nez-Montero
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Sonia Bruña
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Laura Leemans
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - Isabel Cuadrado
- Departamento
de Quı́mica
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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