試題詳解

37. According to the 18-electron rule, which of the following compounds would be expected to be stable? (Atomic numbers: V = 23, Mn = 25, Fe = 26, Ni = 28, Co = 27)
(A) V(CO)5
(B) Fe(CO)5⁻
(C) Ni(CO)5
(D) Co(CO)5
(E) Mn2(CO)10