(a) Draw all possible constitutional isomers of the compound `Ru(NH_(3))_(5)(NO_(2))Cl`. Label the isomers as linkage isomers or ionization isomers.
(b) There are six possible isomers for a square planar palladium (II) complex that contains two `NH_(3)` and two `SCN^(-)` ligands. Sketch the structure of all six, and label them according to the calssification.

Explanation

(a) There are three constitutional isomers
`(i) [Ru(NH_(3))_(5)(NO_(2))]Cl`
`(ii) [Ru(NH_(3))_(5)Cl](NO_(2))) or [Ru(NH_(3))_(5)Cl]ONO`
(iii) `[Ru(NH_(3))_(5)ONO]Cl`
(i) & (ii) are ionisation isomers
(i) & (iii) are linkage isomers
(b)