The IUPAC name for `[(NH_(3))_(5)Cr - (OH) - Cr(NH_(3))_(5)]` is

Options

A. `mu` - hydroxido- bis[pentaaminechromium(III)]
B. `mu` - hydroxo-bis(octaamminechromium)`(5+)` ion
C. `mu` - hydroxo-bis(pentaamminedichromium) `(5+)`
D. m-hydroxyl-bis(decaamminedichromium) `(5+)` ion

Answer

A

Explanation

It is polynuclear complex. The bridginig ligand OH which links the two Cr metal atoms together is indicated by the prefix `my-` . For multiple ligands already containing numerical prefixes (such as 1,2 - diaminoethane), the prefixes used are bis-, tris-, and tetrakis - for 2,3 and 4.