The compound Ni( 5 C 5 H 5 ) 2 readily adds one molecule of HF to yield Ni( 5 C 5 H 5 )( 4 C 5 H 6 ) , whereas Fe( 5 C 5 H 5 ) 2 reacts with strong acid to yield Fe( 5 C 5 H 5 ) 2 H In the latter compound the H atom is attached to the Fe atom Provide a reasonable explanation for this difference ...

The difference in the reactions of Ni5C5H52 and Fe5C5H52 with HF and strong acid can be attributed t ...

The compound [Ni( 5 -C 5 H 5 ) 2 ] readily adds one molecule of HF

Question:

The compound [Ni(η⁵-C₅H₅)₂] readily adds one molecule of HF to yield [Ni(η⁵-C₅H₅)(η⁴-C₅H₆)]⁺, whereas [Fe(η⁵-C₅H₅)₂] reacts with strong acid to yield [Fe(η⁵-C₅H₅)₂H]⁺. In the latter compound the H atom is attached to the Fe atom. Provide a reasonable explanation for this difference.