Literature DB >> 17435164

C-C sigma complexes of rhodium.

Simon K Brayshaw1, Emma L Sceats, Jennifer C Green, Andrew S Weller.   

Abstract

In this article, the complexes [Rh(Binor-S')(PR3)][BAr(4)(F)] (R = (i)Pr, Cy, C(5)H(9)) are described. A combination of x-ray crystallography, NMR spectroscopy, density functional theory, and "atoms in molecules" calculations unequivocally demonstrates that the complexes contain rare examples of metal...C-C agostic interactions. Moreover, they are fluxional on the NMR time scale, undergoing rapid and reversible C-C activation. Kinetic data and calculations point to a bismetallacyclobutane, Rh(V), intermediate.

Entities:  

Year:  2007        PMID： 17435164      PMCID： PMC1855424          DOI： 10.1073/pnas.0609824104

Source DB:  PubMed          Journal:  Proc Natl Acad Sci U S A        ISSN： 0027-8424            Impact factor:   11.205


  18 in total

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Authors:  L D'Accolti; C Fusco; V Lucchini; G B Carpenter; R Curci
Journal:  J Org Chem       Date:  2001-12-28       Impact factor: 4.354

2.  C-C and C-H bond activation reactions in N-heterocyclic carbene complexes of ruthenium.

Authors:  Rodolphe F R Jazzar; Stuart A Macgregor; Mary F Mahon; Stephen P Richards; Michael K Whittlesey
Journal:  J Am Chem Soc       Date:  2002-05-08       Impact factor: 15.419

3.  Complexation of Si-Si sigma bonds to metals.

Authors:  Georgii I Nikonov
Journal:  Angew Chem Int Ed Engl       Date:  2003-03-28       Impact factor: 15.336

4.  Isotope effects in C-H bond activation reactions by transition metals.

Authors:  William D Jones
Journal:  Acc Chem Res       Date:  2003-02       Impact factor: 22.384

5.  Cyclometalated phosphine-based pincer complexes: mechanistic insight in catalysis, coordination, and bond activation.

Authors:  Milko E van der Boom; David Milstein
Journal:  Chem Rev       Date:  2003-05       Impact factor: 60.622

6.  A rhodium complex with one Rh...C-C and one Rh...H-C agostic bond.

Authors:  Simon K Brayshaw; Jennifer C Green; Gabriele Kociok-Köhn; Emma L Sceats; Andrew S Weller
Journal:  Angew Chem Int Ed Engl       Date:  2006-01-09       Impact factor: 15.336

7.  Direct observation of reductive elimination of methyl iodide from a rhodium(III) pincer complex: the importance of sterics.

Authors:  Christian M Frech; David Milstein
Journal:  J Am Chem Soc       Date:  2006-09-27       Impact factor: 15.419

Review 8.  Understanding and exploiting C-H bond activation.

Authors:  Jay A Labinger; John E Bercaw
Journal:  Nature       Date:  2002-05-30       Impact factor: 49.962

9.  C-C versus C-H activation and versus agostic C-C interaction controlled by electron density at the metal center.

Authors:  Mark Gandelman; Linda J W Shimon; David Milstein
Journal:  Chemistry       Date:  2003-09-22       Impact factor: 5.236

10.  Kinetics, thermodynamics, and effect of BPh3 on competitive C-C and C-H bond activation reactions in the interconversion of allyl cyanide by [Ni(dippe)].

Authors:  Nicole M Brunkan; Donna M Brestensky; William D Jones
Journal:  J Am Chem Soc       Date:  2004-03-24       Impact factor: 15.419
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  5 in total

1.  Unsupported boron-carbon σ-coordination to platinum as an isolable snapshot of σ-bond activation.

Authors:  Holger Braunschweig; Peter Brenner; Rian D Dewhurst; Ivo Krummenacher; Bernd Pfaffinger; Alfredo Vargas
Journal:  Nat Commun       Date:  2012-05-29       Impact factor: 14.919

2.  The coordination chemistry of saturated molecules.

Authors:  John E Bercaw; Jay A Labinger
Journal:  Proc Natl Acad Sci U S A       Date:  2007-04-24       Impact factor: 11.205

3.  Mechanistic and Kinetic Studies of the Direct Alkylation of Benzylic Amines: A Formal C(sp3)-H Activation Proceeds Actually via a C(sp2)-H Activation Pathway.

Authors:  Robert Pollice; Navid Dastbaravardeh; Nada Marquise; Marko D Mihovilovic; Michael Schnürch
Journal:  ACS Catal       Date:  2014-12-08       Impact factor: 13.084

4.  Rhodium-catalyzed C-H functionalization-based approach to eight-membered lactams.

Authors:  Shangze Wu; Rong Zeng; Chunling Fu; Yihua Yu; Xue Zhang; Shengming Ma
Journal:  Chem Sci       Date:  2015-02-05       Impact factor: 9.825

5.  Solution, Solid-State, and Computational Analysis of Agostic Interactions in a Coherent Set of Low-Coordinate Rhodium(III) and Iridium(III) Complexes.

Authors:  Richard C Knighton; Jack Emerson-King; Jonathan P Rourke; C André Ohlin; Adrian B Chaplin
Journal:  Chemistry       Date:  2018-02-28       Impact factor: 5.236
  5 in total

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