Literature DB >> 31943626

A Structurally Characterized Cobalt(I) σ-Alkane Complex.

Timothy M Boyd1,2, Bengt E Tegner3, Graham J Tizzard4, Antonio J Martínez-Martínez1, Samuel E Neale3, Michael A Hayward1, Simon J Coles4, Stuart A Macgregor3, Andrew S Weller1,2.   

Abstract

A cobalt σ-alkane complex, [Co(Cy2 P(CH2 )4 PCy2 )(norbornane)][BArF 4 ], was synthesized by a single-crystal to single-crystal solid/gas hydrogenation from a norbornadiene precursor, and its structure was determined by X-ray crystallography. Magnetic data show this complex to be a triplet. Periodic DFT and electronic structure analyses revealed weak C-H→Co σ-interactions, augmented by dispersive stabilization between the alkane ligand and the anion microenvironment. The calculations are most consistent with a η1 :η1 -alkane binding mode.
© 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

Entities:  

Keywords:  X-ray diffraction; alkane complexes; cobalt; periodic density functional theory; single crystals

Year:  2020        PMID： 31943626     DOI： 10.1002/anie.201914940

Source DB:  PubMed          Journal:  Angew Chem Int Ed Engl        ISSN： 1433-7851            Impact factor:   15.336


  5 in total

1.  Activator-free single-component Co(I)-catalysts for regio- and enantioselective heterodimerization and hydroacylation reactions of 1,3-dienes. New reduction procedures for synthesis of [L]Co(I)-complexes and comparison to in situ generated catalysts.

Authors:  Mahesh M Parsutkar; Curtis E Moore; T V RajanBabu
Journal:  Dalton Trans       Date:  2022-07-05       Impact factor: 4.569

2.  Fluoroarene Separations in Metal-Organic Frameworks with Two Proximal Mg2+ Coordination Sites.

Authors:  Mary E Zick; Jung-Hoon Lee; Miguel I Gonzalez; Ever O Velasquez; Adam A Uliana; Jaehwan Kim; Jeffrey R Long; Phillip J Milner
Journal:  J Am Chem Soc       Date:  2021-01-25       Impact factor: 15.419

3.  Three-Component Coupling of Arenes, Ethylene, and Alkynes Catalyzed by a Cationic Bis(phosphine) Cobalt Complex: Intercepting Metallacyclopentenes for C-H Functionalization.

Authors:  William G Whitehurst; Junho Kim; Stefan G Koenig; Paul J Chirik
Journal:  J Am Chem Soc       Date:  2022-03-04       Impact factor: 15.419

Review 4.  Metathesis by Partner Interchange in σ-Bond Ligands: Expanding Applications of the σ-CAM Mechanism.

Authors:  Robin N Perutz; Sylviane Sabo-Etienne; Andrew S Weller
Journal:  Angew Chem Int Ed Engl       Date:  2021-11-26       Impact factor: 16.823

5.  Inverse Isotope Effects in Single-Crystal to Single-Crystal Reactivity and the Isolation of a Rhodium Cyclooctane σ-Alkane Complex.

Authors:  Laurence R Doyle; Martin R Galpin; Samantha K Furfari; Bengt E Tegner; Antonio J Martínez-Martínez; Adrian C Whitwood; Scott A Hicks; Guy C Lloyd-Jones; Stuart A Macgregor; Andrew S Weller
Journal:  Organometallics       Date:  2022-01-27       Impact factor: 3.876
  5 in total

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