The isomerization of alkenes is catalysed by HCo(CO)₃ and Fig. 25.20 shows the relevant catalytic cycle. 

(a) HCo(CO)₄ is a catalyst precursor; explain what this means. 

(b) Give a fuller description of what is happening in each of the steps shown in Fig. 25.20.

Figure 25.20.

Transcribed Image Text:

CH₂CH=CHOH (CO), Co-CH CH3 CH₂OH HCO(CO)4 I-co - CO HCO(CO); CH₂= - CHCH₂OH H(CO), Co CH₂ CHCH,OH