Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 44, 2011
Previous Article Next Article

Reactions of a quintuply bonded chromium dimer with alkynes

Author affiliations

Abstract

Quintuply bonded [HLiPrCr]2 reacts with alkynes RC[triple bond, length as m-dash]CR (R = Me, Et, Ph, CF3) to form exclusively 1 : 1 adducts [HLiPrCr]2(RCCR). All products feature relatively short Cr–Cr distances (1.919–1.962 Å) and elongated C–C bonds (1.315–1.436 Å), consistent with [2+2] cycloaddition reactions. The hydrocarbon adducts are 4-membered metallacycles, the bridging alkynes of which are progressively skewed with respect to the Cr–Cr axis. In contrast, perfluoroalkyne adds across the metal ligand moiety.

Graphical abstract: Reactions of a quintuply bonded chromium dimer with alkynes

Back to tab navigation

Supplementary files

Publication details

The article was received on 22 Aug 2011, accepted on 28 Sep 2011 and first published on 11 Oct 2011


Article type: Communication
DOI: 10.1039/C1CC15218A
Citation: Chem. Commun., 2011,47, 12191-12193

  •   Request permissions

    Reactions of a quintuply bonded chromium dimer with alkynes

    J. Shen, G. P. A. Yap, J. Werner and K. H. Theopold, Chem. Commun., 2011, 47, 12191
    DOI: 10.1039/C1CC15218A

Search articles by author

Spotlight

Advertisements