Among the following complexes, the one that can exist as facial (fac) and meridional (mer) isomers is

Question

Among the following complexes, the one that can exist as facial (fac) and meridional (mer) isomers is (A) [CO (NO2)3 (NH3 )3] (B) K3 [Fe(CN)6] (C) [CO(H2O)2(NH3)4]Cl3 (D) [COCl(NH3)5]Cl2

Tardigrade Admin · Accepted Answer

Facial (fac) and meridional (mer) isomers are type of geometrical isomers which occurs in octahedral coordination entities of the type

M a_{3} b_{3}

The type of complexes given in the options are as follows :

Complexes	Type of complexes
$[C o (N 0_{2})_{3} (N H_{3})_{3}]$	$[M a_{3} b_{3}]$
$K_{3} [F e (CN)_{6}]$	$[M a_{6}]$
$[C o (H 20) 2 (N H 3) 4] C 1$	$[M a_{2} b_{4}]$
$[C o C 1 (N H 3) 5] C 12$	$[M a b_{5}]$

Thus,

[C o (N O_{2})_{3} (N H_{3})_{3}]

shows

f a c

and mer isomers.

Q. Among the following complexes, the one that can exist as facial (fac) and meridional (mer) isomers is

$[CO (N O_{2})_{3} (N H_{3})_{3}]$

$K_{3} [F e (CN)_{6}]$

$[CO (H_{2} O)_{2} (N H_{3})_{4}] C l_{3}$

$[COCl (N H_{3})_{5}] C l_{2}$

Q. Among the following complexes, the one that can exist as facial (fac) and meridional (mer) isomers is

[CO(NO2​)3​(NH3​)3​]

K3​[Fe(CN)6​]

[CO(H2​O)2​(NH3​)4​]Cl3​

[COCl(NH3​)5​]Cl2​

$[CO (N O_{2})_{3} (N H_{3})_{3}]$

$K_{3} [F e (CN)_{6}]$

$[CO (H_{2} O)_{2} (N H_{3})_{4}] C l_{3}$

$[COCl (N H_{3})_{5}] C l_{2}$