Consider the following complexes:

i$.,I{r}_2(CO{)}_8$

ii$.Ru({}^1-C_3{H}_5)(CO{)}_2({}^5-C_5{H}_5)$

iii. $R{h}_2(Ph{C}_{2}Ph)(CO{)}_6$

iv$.Zr({}^1-C_5{H}_5{)}_2({}^5-C_5{H}_5{)}_2$

v$.O{s}_2(CO{)}_8({}_2-1$:$2-C_2{H}_4)$

vi$.Fe[{}^5-C_5(C{H}_3{)}_3{H}_2{]}_2$

vii. $HO{s}_3(CO{)}_7(dppf)({}^1,2{}^2-C_{2}Ph)$

viii. $C{p}_{2}P{t}_{2}Ru({}_3-S)C{O}_3$

ix$.(-H)F{e}_3(CO{)}_9({}^1,2{}^2-C_{2}B{u}^t)$

a$)$ Draw the structure of complexes $($i$-$vi$).$

b$)$ Based on your answer in $($a$),$ describe the difference between complex $($i$)$

and complex $($v$),$ in terms of their binding mode.

$(4$ marks$)$

c$)$ Predict whether each metal in complexes $($vii$-$ix$)$ obey the $18$ Valence

Electron Rule.

$(9$ marks$)$

d$)$ Give the IUPAC name of complexes $($iii$),($vi$)$ and $($ix$).$