Chemistry | VITEEE 2016 | Discussion Page

Which of the following complex will show fac & mer isomerism?

A) $[Co(NH_{3})_{3}(NO_{2})_{3}]$

B) $[CoCl_{2}(en)_{2}]^{+}$

C) $[Co(NH_{3})_{3}Cl(en)_{2}]^{2+}$

D) $[Co(NH_{3})_{2}Cl_{2}(en)]^{+}$

Option A

Complexes of the type ${M_{A_{3}}}_{B_{3}}$ exist in two geometrical forms which are named as facial (fac-) and meridonal (mer-isomers)

$[Co(NH_{3})_{3}(NO_{2})_{3}]$ may be represented in fac- and mer- isomeric forms as follows.

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