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Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives : Synthons for a “Naked” Cobalt(I) Source?

Meier, Stefan C. ; Holz, Albina ; Kulenkampff, Jan ; Schmidt, Alexei ; Kratzert, Daniel ; Himmel, Daniel ; Schmitz, Dominik ; Scheidt, Ernst Wilhelm ; Scherer, Wolfgang and Bülow, Christine , et al. (2018) In Angewandte Chemie - International Edition 57(30). p.9310-9314
Abstract

The synthesis and structural characterization of the hitherto unknown parent Co(bz)2
+ (bz=benzene) complex and several of its derivatives are described. Their synthesis starts either from a CoCO5
+ salt, or directly from Co2(CO)8 and a Ag+ salt. Stability and solubility of these complexes was achieved by using the weakly coordinating anions (WCAs) [Al(ORF)4]− and [F{Al(ORF)3}2]− {RF=C(CF3)3} and the solvent ortho-difluorobenzene (o-DFB). The magnetic properties of Co(bz)2
... (More)

The synthesis and structural characterization of the hitherto unknown parent Co(bz)2
+ (bz=benzene) complex and several of its derivatives are described. Their synthesis starts either from a CoCO5
+ salt, or directly from Co2(CO)8 and a Ag+ salt. Stability and solubility of these complexes was achieved by using the weakly coordinating anions (WCAs) [Al(ORF)4]− and [F{Al(ORF)3}2]− {RF=C(CF3)3} and the solvent ortho-difluorobenzene (o-DFB). The magnetic properties of Co(bz)2
+ were measured and compared in the condensed and gas phases. The weakly bound Co(o-dfb)2
+ salts are of particular interest for the preparation of further CoI salts, for example, the structurally characterized low-coordinate 12 valence electron Co(PtBu3)2
+ and Co(NHC)2
+ salts.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
arene ligands, cobalt, magnetic properties, sandwich complexes, weakly coordinating anion
in
Angewandte Chemie - International Edition
volume
57
issue
30
pages
5 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:29847000
  • scopus:85049963657
ISSN
1433-7851
DOI
10.1002/anie.201803108
language
English
LU publication?
yes
id
6260576a-b606-41e8-aab0-6df980fa3f3e
date added to LUP
2018-07-31 14:59:40
date last changed
2024-10-29 06:08:18
@article{6260576a-b606-41e8-aab0-6df980fa3f3e,
  abstract     = {{<p>The synthesis and structural characterization of the hitherto unknown parent Co(bz)<sub>2</sub><br>
                            <sup>+</sup> (bz=benzene) complex and several of its derivatives are described. Their synthesis starts either from a CoCO<sub>5</sub><br>
                            <sup>+</sup> salt, or directly from Co<sub>2</sub>(CO)<sub>8</sub> and a Ag<sup>+</sup> salt. Stability and solubility of these complexes was achieved by using the weakly coordinating anions (WCAs) [Al(OR<sup>F</sup>)<sub>4</sub>]<sup>−</sup> and [F{Al(OR<sup>F</sup>)<sub>3</sub>}<sub>2</sub>]<sup>−</sup> {R<sup>F</sup>=C(CF<sub>3</sub>)<sub>3</sub>} and the solvent ortho-difluorobenzene (o-DFB). The magnetic properties of Co(bz)<sub>2</sub><br>
                            <sup>+</sup> were measured and compared in the condensed and gas phases. The weakly bound Co(o-dfb)<sub>2</sub><br>
                            <sup>+</sup> salts are of particular interest for the preparation of further Co<sup>I</sup> salts, for example, the structurally characterized low-coordinate 12 valence electron Co(P<sup>t</sup>Bu<sub>3</sub>)<sub>2</sub><br>
                            <sup>+</sup> and Co(NHC)<sub>2</sub><br>
                            <sup>+</sup> salts.</p>}},
  author       = {{Meier, Stefan C. and Holz, Albina and Kulenkampff, Jan and Schmidt, Alexei and Kratzert, Daniel and Himmel, Daniel and Schmitz, Dominik and Scheidt, Ernst Wilhelm and Scherer, Wolfgang and Bülow, Christine and Timm, Martin and Lindblad, Rebecka and Akin, Scott T. and Zamudio-Bayer, Vicente and von Issendorff, Bernd and Duncan, Michael A. and Lau, J. Tobias and Krossing, Ingo}},
  issn         = {{1433-7851}},
  keywords     = {{arene ligands; cobalt; magnetic properties; sandwich complexes; weakly coordinating anion}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{30}},
  pages        = {{9310--9314}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Angewandte Chemie - International Edition}},
  title        = {{Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives : Synthons for a “Naked” Cobalt(I) Source?}},
  url          = {{http://dx.doi.org/10.1002/anie.201803108}},
  doi          = {{10.1002/anie.201803108}},
  volume       = {{57}},
  year         = {{2018}},
}