Can anybody name about three corrosive metals and three non-corrosive metals? Also is acid corrosive?
A transition metal carbene complex is a organometallic compound featuring a divalent organic ligand. The divalent organic ligand coordinated to the metal center is called a carbene. All transition metals form such complexes. Many methods for synthesizing them and reactions utilizing them have been reported. The term carbene ligand is a formalism since many are not derived from carbenes and almost none exhibit the reactivity characteristic of carbenes. Described often as M=CR2, they represent a class of organic ligands intermediate between alkyls (-CR3) and carbynes (≡CR). They feature in many catalytic reactions in the petrochemical industry and are of increasing interest in fine chemicals. The characterization of (CO)5Cr(COCH3(Ph)) in the 1960's is often cited as the starting point of the area,[1] although carbenoid ligands had been previously implicated.
