Polyhedral Expansion Research Articles

Polyhedral expansion of metallocarboranes

Abstract : New metallocarboranes of general formula (C5H5)2Co2C2BnH(n+2) and (C5H5)3Co3C2BnH(n+2) can be directly prepared by the reduction of the closo monometallodeca-, undeca-, and dodecaboranes with Na in the presence of naphthalene followed by addition of CoCl2 and NaC5H5. The preparation, characterization and proposed structures of these metallocarboranes are discussed. (Modified author abstract)

Synthesis of fourteen vertex metallocarboranes by polyhedral expansion

Download options Please wait... Article information DOI https://doi.org/10.1039/C39740000038 Article type Paper Download Citation J. Chem. Soc., Chem. Commun., 1974, 38-39 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS Permissions Request permissions Synthesis of fourteen vertex metallocarboranes by polyhedral expansion W. J. Evans and M. F. Hawthorne, J. Chem. Soc., Chem. Commun., 1974, 38 DOI: 10.1039/C39740000038 To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page. If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given. If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page. Read more about how to correctly acknowledge RSC content. Search articles by author William J. Evans M. Frederick Hawthorne

Crystal and molecular structure of a novel bimetallocarborane anion

The bimetallocarborane, [Et4N][(η-C5H5)-Co-C2B8H10-Co-C2B8H10], which was prepared by the poly-hedral expansion of 1,6-C2B8H10 at –80°, was studied by single-crystal diffraction techniques; the anion was found to contain a bimetallic Co2C2B8H10 unit in which one cobalt atom was shared with a terminal C2B8H10 group.

New chemistry of metallocarboranes and metalloboranes

Abstract

Synthesis of metallocarboranes by polyhedral expansion

Abstract : The reduction of the closo-carboranes 1,7-C2B6H8, 4,5-C2B7H9, 1,6-C2B8H10, 1,10-C2B8H10, and 2,3-C2B9H11 with Na followed by complexation with CoCl2 and NaC5H5 produces metalloboranes of the following types: C5H5CoC2B(n)H(n+2), (C5H5Co2C2B(N)H(n+2), and C5H5CoC2B(n)H(n+1) (C2B(N)H(N+D). Similarly, addition of FeCl2 and NaC5H5 to the anions derived from the reduction of 1,7-C2B6H8 and 1,6-C2B8H10 results in new ferracarboranes. The preparation, characterization, and proposed structures of these metalloboranes are discussed. (Author)

Synthesis of a mixed-metal bimetallic monocarbon metallocarborane by polyhedral expansion

Download options Please wait... Article information DOI https://doi.org/10.1039/C39730000560 Article type Paper Download Citation J. Chem. Soc., Chem. Commun., 1973, 560-560 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS Permissions Request permissions Synthesis of a mixed-metal bimetallic monocarbon metallocarborane by polyhedral expansion C. G. Salentine and M. F. Hawthorne, J. Chem. Soc., Chem. Commun., 1973, 560 DOI: 10.1039/C39730000560 To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page. If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given. If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page. Read more about how to correctly acknowledge RSC content. Search articles by author Chiris G. Salentine M. Frederick Hawthorne

Synthesis of a trimetallic metallocarborane by polyhedral expansion

An icosahedral metallocarborane containing three transition metal vertices has been synthesized from 2,1,6-C5H5CoC2B7H9 by polyhedral expansion.

The direct synthesis of a bimetallic carborane complex by polyhedral expansion of a monometallocarborane

Addition of Na+C5H5– and CoCl2 to B8C2H10CoC5H5 previously reduced with Na+C10H8– forms a new bimetallic carborane complex through a new extension of the polyhedral expansion reaction.

Metallocarboranes: new syntheses

The preparation and synthetic utility of the complexes TI2R1R2C2B9H9 is described; the closo-car-borane Me2C2B9H9 undergoes a polyhedral expansion reaction on treatment with d10 metal complexes of Ni, Pd, or Pt.

An 11-atom polyhedral metallocarborane formed from 1,6-dicarba-closo-decaborane(10) by polyhedral expansion

An 11-atom polyhedral metallocarborane formed from 1,6-dicarba-closo-decaborane(10) by polyhedral expansion