Chemistry - Coordination Chemistry Question with Solution | TestHub
Consider the following :
(1) Diamminedichloridoplatinum(II)
(2) Tris(ethylenediamine)iron(III) chloride
(3) Potassium trioxalatoiridate(III)
(4) Diaquadiiodidodinitrito-O-palladium(IV)
(5) Dichloridobis(ethylenediamine)cobalt(III) sulphate
(6) Sodium ethylenediaminetetraacetatonickelate(II)
Number of diamagnetic complex species , having correct IUPAC name , show optical isomerism as well as geometrical isomerism only in given condition (not in other structural isomeric form).
Answer:
Solution:
Species (4) : is a low-spin system (diamagnetic). As an type complex, it exhibits both geometrical and optical isomerism.
Species (5) ⁺: is a low-spin system (diamagnetic). The cis-isomer is optically active, and the trans-isomer is inactive, showing both types of isomerism.
Other exclusions: (1) is square planar (no optical isomerism); (2) and (6) are paramagnetic; (3) does not show geometrical isomerism. Final Answer: 2 (Species 4 and 5 satisfy all conditions).
