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

Stefan C. Meier; Albina Holz; Jan Kulenkampff; Alexei Schmidt; Daniel Kratzert; Daniel Himmel; Dominik Schmitz; Ernst Wilhelm Scheidt; Wolfgang Scherer; Christine Bülow; Martin Timm; Rebecka Lindblad; Scott T. Akin; Vicente Zamudio-Bayer; Bernd von Issendorff; Michael A. Duncan; J. Tobias Lau; Ingo Krossing

doi:10.1002/anie.201803108

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

Stefan C. Meier, Albina Holz, Jan Kulenkampff, Alexei Schmidt, Daniel Kratzert, Daniel Himmel, Dominik Schmitz, Ernst Wilhelm Scheidt, Wolfgang Scherer, Christine Bülow, Martin Timm, Rebecka Lindblad, Scott T. Akin, Vicente Zamudio-Bayer, Bernd von Issendorff, Michael A. Duncan, J. Tobias Lau, Ingo Krossing

Synchrotron Radiation Research

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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(OR^F)₄]⁻ and [F{Al(OR^F)₃}₂]⁻ {R^F=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 Co^I salts, for example, the structurally characterized low-coordinate 12 valence electron Co(P^tBu₃)₂ ⁺ and Co(NHC)₂ ⁺ salts.

Original language	English
Pages (from-to)	9310-9314
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	30
DOIs	https://doi.org/10.1002/anie.201803108
Publication status	Published - 2018 Jul 20

Subject classification (UKÄ)

Chemical Sciences

Free keywords

arene ligands
cobalt
magnetic properties
sandwich complexes
weakly coordinating anion

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10.1002/anie.201803108

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Meier, S. C., Holz, A., Kulenkampff, J., Schmidt, A., Kratzert, D., Himmel, D., Schmitz, D., Scheidt, E. W., Scherer, W., Bülow, C., Timm, M., Lindblad, R., Akin, S. T., Zamudio-Bayer, V., von Issendorff, B., Duncan, M. A., Lau, J. T., & Krossing, I. (2018). Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives: Synthons for a “Naked” Cobalt(I) Source? Angewandte Chemie - International Edition, 57(30), 9310-9314. https://doi.org/10.1002/anie.201803108

@article{6260576ab60641e8aab06df980fa3f3e,

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

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 + 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.",

keywords = "arene ligands, cobalt, magnetic properties, sandwich complexes, weakly coordinating anion",

author = "Meier, {Stefan C.} and Albina Holz and Jan Kulenkampff and Alexei Schmidt and Daniel Kratzert and Daniel Himmel and Dominik Schmitz and Scheidt, {Ernst Wilhelm} and Wolfgang Scherer and Christine B{\"u}low and Martin Timm and Rebecka Lindblad and Akin, {Scott T.} and Vicente Zamudio-Bayer and {von Issendorff}, Bernd and Duncan, {Michael A.} and Lau, {J. Tobias} and Ingo Krossing",

year = "2018",

month = jul,

day = "20",

doi = "10.1002/anie.201803108",

language = "English",

volume = "57",

pages = "9310--9314",

journal = "Angewandte Chemie - International Edition",

issn = "1433-7851",

publisher = "John Wiley & Sons Inc.",

number = "30",

}

Meier, SC, Holz, A, Kulenkampff, J, Schmidt, A, Kratzert, D, Himmel, D, Schmitz, D, Scheidt, EW, Scherer, W, Bülow, C, Timm, M, Lindblad, R, Akin, ST, Zamudio-Bayer, V, von Issendorff, B, Duncan, MA, Lau, JT & Krossing, I 2018, 'Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives: Synthons for a “Naked” Cobalt(I) Source?', Angewandte Chemie - International Edition, vol. 57, no. 30, pp. 9310-9314. https://doi.org/10.1002/anie.201803108

TY - JOUR

T1 - Access to the Bis-benzene Cobalt(I) Sandwich Cation and its Derivatives

T2 - Synthons for a “Naked” Cobalt(I) Source?

AU - Meier, Stefan C.

AU - Holz, Albina

AU - Kulenkampff, Jan

AU - Schmidt, Alexei

AU - Kratzert, Daniel

AU - Himmel, Daniel

AU - Schmitz, Dominik

AU - Scheidt, Ernst Wilhelm

AU - Scherer, Wolfgang

AU - Bülow, Christine

AU - Timm, Martin

AU - Lindblad, Rebecka

AU - Akin, Scott T.

AU - Zamudio-Bayer, Vicente

AU - von Issendorff, Bernd

AU - Duncan, Michael A.

AU - Lau, J. Tobias

AU - Krossing, Ingo

PY - 2018/7/20

Y1 - 2018/7/20

N2 - 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.

AB - 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.

KW - arene ligands

KW - cobalt

KW - magnetic properties

KW - sandwich complexes

KW - weakly coordinating anion

U2 - 10.1002/anie.201803108

DO - 10.1002/anie.201803108

M3 - Article

C2 - 29847000

AN - SCOPUS:85049963657

SN - 1433-7851

VL - 57

SP - 9310

EP - 9314

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 30

ER -

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

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Subject classification (UKÄ)

Free keywords

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