A Planar Tetracoordinate Carbon and Unusual Bonding in an Organodimetallic Propynylidene Complex Arising from Double C-H Activation of an Allene Ligand.

Focuses on the preparation and characterization of a propynylidene organodimetallic complex arising from double C-H activation of an allene ligand. Single-crystal diffractometry revealing a micro-propynylidene coplanar with two Ta atoms; as of February 2003. medical device manufacturer; Reactivity of a new organometallic functional group.