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प्रश्न
Name the type of isomerism when ambidentate ligands are attached to central metal ion. Give two examples of ambidentate ligands.
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उत्तर
Linkage isomerism
Examples:
| (i) | \[\begin{array}{cc} \phantom{.........}\ce{O}\\ \phantom{.......}/\\ \ce{M <- N}\phantom{....}\\ \phantom{.......}\backslash\backslash\\ \phantom{.........}\ce{O}\\ \ce{nitrito-N} \end{array}\] |
\[\ce{\underset{nitrito — O}{M<-O-N=O}}\] |
| (ii) | \[\ce{\underset{thiocyanato}{M<-SCN}}\] | \[\ce{\underset{isothiocyanato}{M<-NCS}}\] |
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संबंधित प्रश्न
The complex ion `[Co(H_2O)_5 (ONO)]^(2+) `
(A) linkage isomer
(B) ionisation isomer
(C) co-ordination isomer
(D) geometrical isomer
Give evidence that [Co(NH3)5Cl]SO4 and [Co(NH3)5SO4]Cl are ionisation isomers.
What type of isomerism is shown by the complex [Co(en)3]Cl3
What type of isomerism is shown by the complex [Co(NH3)6] [Cr(CN)6]?
What type of isomerism is shown by the complex [Co(NH3)5(SCN)]2+?
What type of isomerism is exhibited by the complex [Co(NH3)5Cl]SO4?
Write the IUPAC name of the complex [Cr(NH3)4Cl2]+. What type of isomerism does it exhibit?
Which among the following is an ambidentate ligand?
Which of the following pair contains a complex salt and double salt respectively?
What kind of isomerism exists between \[\ce{[Cr(H2O)6]Cl3}\] (violet) and \[\ce{[Cr(H2O)5Cl]Cl2 . H2O}\] (greyish-green)?
Which of the following complexes show linkage isomerism?
(i) \[\ce{[Co(NH3)5 (NO2)]^{2+}}\]
(ii) \[\ce{Co(H2O)5 CO]^{3+}}\]
(iii) \[\ce{[Cr(NH3)5 SCN]^{2+}}\]
(iv) \[\ce{Fe(en)2 Cl2]^+}\]
Match the complex species given in Column I with the possible isomerism given in Column II and assign the correct code:
| Column I (Complex species) | Column II (Isomerism) |
| A. \[\ce{[Co(NH3)4 Cl2]^+}\] | 1. optical |
| B. \[\ce{cis-[Co(en)2 Cl2]^+}\] | 2. ionisation |
| C. \[\ce{[Co(NH3)5 (NO2)]Cl2}\] | 3. coordination |
| D. \[\ce{[Co(NH3)6][Cr(CN)6]}\] | 4. geometrical |
| 5. linkage |
Assertion: Linkage isomerism arises in coordination compounds containing ambidentate ligand.
Reason: Ambidentate ligand has two different donor atoms
CoSO4Cl.5NH3 exists in two isomeric forms ‘A’ and ‘B’. Isomer ‘A’ reacts with AgNO3 to give white precipitate, but does not react with BaCl2. Isomer ‘B’ gives white precipitate with BaCl2 but does not react with AgNO3. Answer the following questions.
- Identify ‘A’ and ‘B’ and write their structural formulas.
- Name the type of isomerism involved.
- Give the IUPAC name of ‘A’ and ‘B’.
A functional isomer of 1-butyne is
Which of the following compounds exhibits linkage isomerism?
The complex [Co(NH3)5(NO2)]Cl2 is red in colour. Give IUPAC the name of its linkage isomer.
