Identify the most likely second-row transition metal for each of the following (show all your calculations) cyclopentadiene, en = ethylenediamine): a.
[M(en)_(2)(NO)_(2)]^(3+)
(contains linear M-N-O) b.
[(\eta ^(3)-C_(3)H_(5))(\eta ^(6)-C_(6)H_(6))M(CN)]^(-)
c.
M(CO)(PMe_(3))_(2)Cl
(square planar complex) d.
(\eta ^(3)-Cp)MCp(CO)_(2)