Metallole

Metalloles are metallacycle derivatives of cyclopentadiene in which the carbon atom at position 5, the saturated carbon, is replaced by a heteroatom.

In contrast to its parent compound, the numbering of the metallole starts at the heteroatom.

Some of these compounds are described as organometallic compounds, but in the list below quite a number of metalloids are present too.

Polymeric derivatives of pyrrole and thiophene are of interest in molecular electronics.

Metalloles, which can also be viewed as structural analogs of pyrrole, include:

Structure of the ferrole complex Fe 2 (C 4 H 4 )(CO) 6 . [ 5 ]