The maximum possible denticities of the ligan | vedclass

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(A) The ligand shown is diethylenetriaminepentaacetate $(DTPA^{5-})$.It contains $3$ nitrogen atoms and $5$ carboxylate oxygen atoms capable of coordi

Vedclass · Accepted Answer

$6$ and $8$

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(A) The ligand shown is diethylenetriaminepentaacetate $(DTPA^{5-})$.It contains $3$ nitrogen atoms and $5$ carboxylate oxygen atoms capable of coordination.For common transition metal ions,the maximum coordination number is typically $6$,so the ligand acts as a hexadentate ligand (denticity = $6$).For inner-transition metal ions (like lanthanides),the coordination number can be higher (up to $8$ or $9$) due to their larger size and availability of more vacant orbitals,allowing the ligand to act as an octadentate ligand (denticity = $8$).

The maximum possible denticities of the ligand shown below towards a common transition metal ion and an inner-transition metal ion,respectively,are:

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