Explain the following term with an example: Hexadentate ligands.
(N/A) Hexadentate ligands: These ligands have $six$ donor atoms and form $six$ coordinate bonds with a metal ion.
Example: Ethylenediamine tetraacetate $(EDTA^{4-})$. The structure shows the $six$ donor atoms (two nitrogen atoms and four oxygen atoms) labeled $1$ to $6$.
Example: Ethylenediamine tetraacetate $(EDTA^{4-})$. The structure shows the $six$ donor atoms (two nitrogen atoms and four oxygen atoms) labeled $1$ to $6$.
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The coordination number and the oxidation state of the element $M$ in the complex $[M(en)_{2}(C_{2}O_{4})]NO_{2}$ [where $en$ is ethane-$1,2$-diamine] are respectively:
The secondary valences (coordination numbers) of the following complexes based on their reactions with excess $AgNO_3$ are:
Formula of the complexes Moles of $AgCl$ precipitated per mole of complex $(I) \ CoCl_3 \cdot 6 H_2O$ $3$ $(II) \ NiCl_3 \cdot 6 H_2O$ $2$ $(III) \ Co(SO_4)Br \cdot 5 NH_3$ $1$
Find the secondary valences for $(I), (II),$ and $(III)$ respectively.
| Formula of the complexes | Moles of $AgCl$ precipitated per mole of complex |
|---|---|
| $(I) \ CoCl_3 \cdot 6 H_2O$ | $3$ |
| $(II) \ NiCl_3 \cdot 6 H_2O$ | $2$ |
| $(III) \ Co(SO_4)Br \cdot 5 NH_3$ | $1$ |
Find the secondary valences for $(I), (II),$ and $(III)$ respectively.
The denticity of the organic ligand,biuret,is:
Which of the following acts as a bidentate ligand in complex formation?
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