Question

How many electrons do each of the folloing ligands donate when coordinate to a single metal:

bypiridine

trimethylphosphine

oxo (O^2-)

cyclopentadienyl (n^3-Cp^1-)

aqua

ammine

carbonyl

cyano

nitrido

Answer 1

bypiridine (It contains two nirogens so it can donate total 4 electrons to the metal)

trimethylphosphine (Phosporous contains one lone pair, it can donate 2 electrons)

oxo (O^2-) ( It contains 2 electrons. It is an 2 electron donor)

cyclopentadienyl (n^3-Cp^1-) Which contains total 6 electrons. It is an aromatic. It is an 6 electrons donor)

aqua (it contains 4 electrons. 4 electron donor)

ammine (two electron donor)

carbonyl (two electron donor)

cyano (two electron donor)

nitrido (two electron donor)