Total number of cis N-Mn-Cl bond angles (that | vedclass

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Question

(A) In the $cis-[Mn(en)_2Cl_2]$ complex,the central metal ion $Mn$ is octahedrally coordinated.There are two $Cl$ ligands and two $en$ (ethylenediamin

Vedclass · Accepted Answer

$6$

Vedclass · Answer

(A) In the $cis-[Mn(en)_2Cl_2]$ complex,the central metal ion $Mn$ is octahedrally coordinated.There are two $Cl$ ligands and two $en$ (ethylenediamine) ligands.Each $en$ ligand provides two $N$ donor atoms.Let the $Cl$ atoms be $Cl_{(a)}$ and $Cl_{(b)}$,and the $N$ atoms be $N_{(1)}, N_{(2)}, N_{(3)}, N_{(4)}$.By analyzing the octahedral geometry,the cis $N-Mn-Cl$ bond angles are:$Cl_{(a)}-Mn-N_{(1)}$,$Cl_{(a)}-Mn-N_{(2)}$,$Cl_{(a)}-Mn-N_{(4)}$,$Cl_{(b)}-Mn-N_{(1)}$,$Cl_{(b)}-Mn-N_{(3)}$,and $Cl_{(b)}-Mn-N_{(4)}$.Counting these,we find a total of $6$ such cis bond angles.

Total number of cis $N-Mn-Cl$ bond angles (that is,$Mn-N$ and $Mn-Cl$ bonds in cis positions) present in $cis-[Mn(en)_2Cl_2]$ is: $(en = NH_2CH_2CH_2NH_2)$

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