Mechanism(s) for the formation of iridabenzenes from Z-3-(2-iodoethenyl)cyclopropenes

INOR 789

Christopher W. Landorf, clandorf@darkwing.uoregon.edu, Department of Chemistry, University of Oregon, 1253 University of Oregon, Eugene, OR 97403 and Michael M. Haley, haley@uoregon.edu, Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, OR 97403-1253.
Metallabenzenes are an unusual class of aromatic compounds where a methine unit has been replaced by an isoelectronic transition metal fragment. From cyclopropene 1, a series of iridabenzvalenes (2) has been synthesized. Upon heating, these complexes isomerize cleanly to form iridabenzenes (3). While theoretical studies suggest direct formation of 3 from 2, solution data afford conflicting results. To shed light on this mechanism, the dependence of the isomerization rate on electronics of the cyclopropenyl moiety has been studied and a Hammett plot has been constructed. These results will be presented herein.

 

Organometallics
7:00 PM-10:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Division of Inorganic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006