EP-eliminating (E = P, As) niobium complexes as EP synthons, and their use in the synthesis of cyclo-E3 complexes

INOR 36

Nicholas A. Piro, piro@mit.edu, Alexander R. Fox, arfox@mit.edu, and Christopher C. Cummins, ccummins@mit.edu. Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139
We have previously reported on the synthesis of a diphosphaazide complex of niobium, (η2-PPNMes*)Nb(N[Np]Ar)3, which was shown to eliminate the P2 unit. Here we discuss expansion beyond phosphorus into the generation of arsenic-containing diatomic molecules. These reagents are used in the synthesis of cyclo-E3 metal complexes from terminal pnictogen complexes. The chemistry of the cyclo-E3 complexes will also be discussed, particularly in the context of generating pnictogen analogues of cyclopropenes.
 

Synthetic Coordination Chemistry
8:30 AM-12:30 PM, Sunday, August 19, 2007 BCEC -- 213, Oral

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007