The substitution of η5-Cp group with nitric oxide is the easiest for:a)η5-Cp2Feb)η5-Cp2CoClc)η5-Cp2Nid)η5-Cp2CoCorrect answer is option 'C'. Can you explain this answer?

Question

The substitution of &#951;5-Cp group with nitric oxide is the easiest for:a)&#951;5-Cp2Feb)&#951;5-Cp2CoClc)&#951;5-Cp2Nid)&#951;5-Cp2CoCorrect answer is option 'C'. Can you explain this answer?

Answer

Here, option B)  Nd C)  both will be correct.  Let's eliminate all options first, Here A and D both follows 18 electron rule... So they are stable.. They do not gives substitution reaction. While in option B and D there are 20 electron. In which we are removing Cp5 and adding NO(linear), which will contribute the 3e. So... If we substrate the Cp and add NO then both B and C will follows 18 electron rule... So both ans should be correct.

Answer

One thing for another thing.

Answer

18 e

Answer

C

Answer

A

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