0 any of a group of metal chemical elements including copper and gold that show more than one valency (= the number of hydrogen atoms that can combine with one of its atoms to form a compound) --
These transition metal electrodes offer excellent reversibility, with several hundred-thousand cycles.
Transition metal carbene complexes catalyze the olefin metathesis reaction.
Transition metal oxides are also frequently used as pigments in paints and plastics, most notably titanium dioxide.
Aryl halides or triflates can be coupled with diboronyl reagents using transition metal catalysts.
There are also transition metal chalcogenols which have potential to serve as catalysts and stabilize nanoparticles.
Transition metal complexes of both types of carbenes have been generated "in situ".
For transition metal compounds, the crystal field splitting diagram for square planar geometry can thus be derived from the octahedral diagram.
It is typically the second most abundant transition metal in organisms after iron and it is the only metal which appears in all enzyme classes.
