Zuschrift
Photoswitchable N-Heterocyclic Carbenes: Using Light to Modulate Electron-Donating Properties†
Bethany M. Neilson,
Vincent M. Lynch,
Prof. Christopher W. Bielawski,
Bethany M. Neilson
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Search for more papers by this authorVincent M. Lynch
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Search for more papers by this authorCorresponding Author
Prof. Christopher W. Bielawski
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.eduSearch for more papers by this authorBethany M. Neilson,
Vincent M. Lynch,
Prof. Christopher W. Bielawski,
Bethany M. Neilson
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Search for more papers by this authorVincent M. Lynch
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Search for more papers by this authorCorresponding Author
Prof. Christopher W. Bielawski
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.edu
Department of Chemistry & Biochemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX 78712 (USA) http://bielawski.cm.utexas.eduSearch for more papers by this author†
We are grateful to the ARO (W911NF-09-1-0446), the NSF (CHE-0645563), and the Welch Foundation (F-1621) for their generous support.
Graphical Abstract
Mit Licht wurden die Elektronendonor-Eigenschaften eines N-heterocylischen Carbens (NHC) als Teil von Chalkogen- und Metalladdukten verändert. Ein lichtinduzierter elektrocyclischer Ringschluss eines photochromen 4,5-Dithienylimidazolons erhöhte dessen νCO-Frequenz. UV-Bestrahlung des analogen photochromen Komplexes [(NHC)Ir(CO)2Cl] verringerte die Elektronendonor-Fähigkeit des Carbens. Mit sichtbarem Licht ließen sich beide Photocyclisierungen wieder umkehren.
Supporting Information
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