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Answer the following.
What type of isomerism is shown by the following coordination compounds: and Write their IUPAC…
What type of isomerism is shown by the following coordination compounds:
$[\text{PtCl}_2(\text{NH}_3)_4]\text{Br}_2$ and $[\text{PtBr}_2(\text{NH}_3)_4]\text{Cl}_2$
Write their IUPAC names.
Answer
Answer
AI| IUPAC name | tetraamminedichloridoplatinum(IV) bromide and tetraamminedibromidoplatinum(IV) chloride |
| Isomerism | geometrical: None, optical: no |
They show ionisation isomerism: in solution they give different ions ($\mathrm{Br^-}$ and $\mathrm{Cl^-}$ respectively).
$[\mathrm{PtCl_2(NH_3)_4}]\mathrm{Br_2}$ = tetraamminedichloridoplatinum(IV) bromide
$[\mathrm{PtBr_2(NH_3)_4}]\mathrm{Cl_2}$ = tetraamminedibromidoplatinum(IV) chloride
From ISC 2018 Chemistry Paper 1, question 1(d)(iv).
Check your working with the Coordination complex analyser: hybridisation, shape, magnetic moment, CFSE, isomers and the IUPAC name of a complex.