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Abd-El-Aziz AS, Agatemor C, Etkin N. Sandwich complex-containing macromolecules: property tunability through versatile synthesis. Macromol Rapid Commun 2014; 35:513-59. [PMID: 24474608 DOI: 10.1002/marc.201300826] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/03/2013] [Indexed: 12/17/2022]
Abstract
Sandwich complexes feature unique properties as the physical and electronic properties of a hydrocarbon ligand or its derivative are integrated into the physical, electronic, magnetic, and optical properties of a metal. Incorporation of these complexes into macromolecules results in intriguing physical, electrical, and optical properties that were hitherto unknown in organic-based macromolecules. These properties are tunable through well-designed synthetic strategies. This review surveys many of the synthetic approaches that have resulted in tuning the properties of sandwich complex-containing macromolecules. While the past two decades have seen an ever-growing number of research publications in this field, gaps remain to be filled. Thus, we expect this review to stimulate research interest towards bridging these gaps, which include the insolubility of some of these macromolecules as well as expanding the scope of the sandwich complexes.
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Affiliation(s)
- Alaa S Abd-El-Aziz
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, Prince Edward Island, C1A 4P3, Canada
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Kong J, Kong M, Zhang X, Chen L, An L. Magnetoceramics from the bulk pyrolysis of polysilazane cross-linked by polyferrocenylcarbosilanes with hyperbranched topology. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10367-10375. [PMID: 24060298 DOI: 10.1021/am403464e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this contribution, we report a novel strategy for the synthesis of nanocrystal-containing magnetoceramics with an ultralow hysteresis loss by the pyrolysis of commercial polysilazane cross-linked with a functional metallopolymer possessing hyperbranched topology. The usage of hyperbranched polyferrocenylcarbosilane offers either enhanced ceramic yield or magnetic functionality of pyrolyzed ceramics. The ceramic yield was enhanced accompanied by a decreased evolution of hydrocarbons and NH3 because of the cross-linking of precursors and the hyperbranched cross-linker. The nucleation of Fe5Si3 from the reaction of iron atoms with Si-C-N amorphous phase promoted the formation of α-Si3N4 and SiC crystals. After annealing at 1300 °C, stable Fe3Si crystals were generated from the transformation of the metastable Fe5Si3 phase. The nanocrystal-containing ceramics showed good ferromagnetism with an ultralow (close to 0) hysteresis loss. This method is convenient for the generation of tunable functional ceramics using a commercial polymeric precursor cross-linked by a metallopolymer with a designed topology.
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Affiliation(s)
- Jie Kong
- Key Laboratory of Space Applied Physics and Chemistry of Ministry of Education, Department of Applied Chemistry, School of Science, Northwestern Polytechnical University , Xi'an 710072, P. R. China
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Blasco C, Bruña S, Cuadrado I, Delgado E, Hernández E. Co2(CO)6(μ,η2-HCCFc) as Precursor in the Synthesis of Multiredox Cyclic and Linear Vinylferrocenylsiloxanes. Organometallics 2012. [DOI: 10.1021/om201018h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Covadonga Blasco
- Departamento de Química Inorgánica, Facultad
de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Sonia Bruña
- Departamento de Química Inorgánica, Facultad
de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química Inorgánica, Facultad
de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Esther Delgado
- Departamento de Química Inorgánica, Facultad
de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Elisa Hernández
- Departamento de Química Inorgánica, Facultad
de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
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Bruña S, González-Vadillo AM, Nieto D, Pastor CJ, Cuadrado I. Redox-Active Macrocyclic and Linear Oligo-Carbosiloxanes Prepared via Hydrosilylation from 1,3-Divinyl-1,3-Dimethyl-1,3-Diferrocenyldisiloxane. Macromolecules 2012. [DOI: 10.1021/ma202521n] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sonia Bruña
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - Ana M González-Vadillo
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - Daniel Nieto
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - César J. Pastor
- Servicio Interdepartamental
de Investigación (SIDI), Universidad Autónoma de Madrid, Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
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Zamora M, Bruña S, Alonso B, Cuadrado I. Polysiloxanes Bearing Pendant Redox-Active Dendritic Wedges Containing Ferrocenyl and (η6-Aryl)tricarbonylchromium Moieties. Macromolecules 2011. [DOI: 10.1021/ma201748d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Magdalena Zamora
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Sonia Bruña
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Beatriz Alonso
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
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Kong J, Schmalz T, Motz G, Müller AHE. Novel Hyperbranched Ferrocene-Containing Poly(boro)carbosilanes Synthesized via a Convenient “A2 + B3” Approach. Macromolecules 2011. [DOI: 10.1021/ma1029086] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jie Kong
- Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, P. R. China
- Macromolecular Chemistry II, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Thomas Schmalz
- Ceramic Materials Engineering, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Günter Motz
- Ceramic Materials Engineering, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Axel H. E. Müller
- Macromolecular Chemistry II, University of Bayreuth, D-95440 Bayreuth, Germany
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Bruña S, González-Vadillo AM, Nieto D, Pastor C, Cuadrado I. Vinyl-Functionalized Silanes and Disiloxanes with Electronically Communicated Ferrocenyl Units. Organometallics 2010. [DOI: 10.1021/om1002733] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - César Pastor
- Laboratorio de Difracción de Rayos X del Servicio Interdepartamental de Investigación, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 29049, Madrid, Spain
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Putzien S, Nuyken O, Kühn FE. Functionalized polysilalkylene siloxanes (polycarbosiloxanes) by hydrosilylation—Catalysis and synthesis. Prog Polym Sci 2010. [DOI: 10.1016/j.progpolymsci.2010.01.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Miles D, Ward J, Foucher DA. Polyferrocenyldisiloxane from the Platinum-Catalyzed Reactions of Tertiary Bis(dimethylsilyl)ferrocene in a Polar Aprotic Solvent. Macromolecules 2009. [DOI: 10.1021/ma9018608] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Damion Miles
- Department of Chemistry and Biology, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3
| | - Jon Ward
- Department of Chemistry and Biology, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3
| | - Daniel A. Foucher
- Department of Chemistry and Biology, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3
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