The present invention provides heterogeneous organometallic catalysts for alkyne metathesis, including the metathesis of internal alkynes. Organometallic precursors are covalently bonded to the oxygen atoms of metal oxide supports to form catalysts having carbyne functionality. The heterogeneous catalysts provide improved turn-over frequencies at lower reaction temperatures than conventional catalysts.
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
 The subject matter of this application may have been funded in part under the following research grants and contracts: Contract Number CHE03-45254 awarded by the National Science Foundation (NSF); and Contract Number DEFG02-91 ER45439 awarded by the U.S. Department of Energy (DOE). The U.S. Government may have rights in this invention.