Multiple choice

A ligand is an ion, a molecule or a molecular group that binds to another chemical entity to form a larger complex. Among the following which one is characterised by a divalent organic ligand?

  1. Cyclopentadienyl complex

  2. Metallocene

  3. Sandwich compound

  4. Transition metal carbene

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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. Carbene complexes for almost all transition metals have been reported.