What is fac and mer isomers with example?
What is fac and mer isomers with example?
Fac-mer Isomerism with Tridentate Ligands Fac-mer isomerism is also common for octahedral complexes with tridentate ligands, for example the ligand diethylenetriamine (Fig. 5.4. 15). In this ligand two NH2 groups and one NH group are interconnected by two ethylene units.
Are FAC and Mer geometrical isomers?
Like organic molecules, transition metal complexes can form different isomers. These include geometric (cis/trans), optical as well as facial and meridional (fac/mer) isomers.
What is mer isomer?
The compounds of the formula [MA3B3] exhibit fac and mer isomerism. The fac isomer is also known as facial isomer or cis isomer. Three A ligands are present on one triangular face and three B ligands are present on opposite triangular face. The mer isomer is also known as meridional isomer or trans isomer.
Which is named as FAC and Mer isomer?
Stereoisomers are compounds that have the same atom-to-atom bonding sequence but a different arrangement of the atoms in space. There are two possible stereoisomers for octahedral complexes of the general formula MA3B3. These are referred to as fac and mer isomers.
Which of the following exists as FAC Mer form?
[Co(NO2)3(NH3)3] is the complex, that can exist as facial (fac) and meridional(mer) isomer since it is of the form [MA3B3] complex.
What is face and mer isomerism?
Which of the following octahedral complexes show fac and mer isomerism?
Octahedral complexes with the general formula `MA_(3)B_(3)` exhibit mer-fac isomerism.
Which of the following complexes can have mer Meridional and fac facial isomers?
[Co(NH3)3(NO2)3] complexes can also represent (fac) and meridional (mer) isomers.
Why are fac and mer optically inactive?
If we look closely at the mer-isomer, it has a plane of symmetry, so it is optically inactive. But the fac-isomer has no plane of symmetry.
Which of the compounds can exhibit FAC-mer isomerism?
The fac-mer isomerism is one of the types of isomerism exhibited by coordination compounds present. The fac isomer forms when 3 alike ligands are on 1 face of an octahedral complex, and the mer isomer forms when 3 alike ligands are on 1 plane in the octahedral complex.
Which of the following exists as FAC-Mer form?
Which of the following complexes exhibit facial meridional geometrical isomerism?
Facial (fac) and meridional (mer) isomerism, a type of geometrical isomerism, is shown by octahedral complexes having Ma3b3 general formula. (Where, M is central metal and a and b are monodentrate ligands). Hence, [Co(NH3)3Cl3] exhibits fac-mer isomerism as.
How many geometrical isomers are possible for 😕
Three geometrical isomers are possible.
Is fac or mer isomers optically active?
If we look closely at the mer-isomer, it has a plane of symmetry, so it is optically inactive. But the fac-isomer has no plane of symmetry. Still, it is optically inactive, why?
Which of the following exists in FAC Mer form?
What is the difference between a FAC and mer isomer?
In a fac isomer,any two identical ligands are adjacent to each other. When three ligands and the metal are in one plane, the isomer is said to be meridional, or mer.It contains both trans and cis pair hence,it is also considered as a combination on trans and cis. ] show fac and mer isomers.
What is meant by FAC and meridional isomers?
Answered Aug 11, 2018. a facial isomer (fac) in which each set of three identical ligands occupies one face of the octahedron surrounding the metal atom, so that any two of these three ligands are mutually cis, and a meridional isomer (mer) in which each set of three identical ligands occupies a plane passing
What is an example of a geometric isomer?
But we can make things even more different and still have geometric isomers, for example in the molecule 1 -bromo- 1 -chloroethene, which is represented as below: In the above, the blue and green groups are either on the same side of the bond or the opposite side.
What is a fac isomer of an octahedron?
When three identical ligands occupy one face of an octahedron, the isomer is said to be facial, or fac. In a fac isomer, any two identical ligands are adjacent or cis to each other. If these three ligands and the metal ion are in one plane, the isomer is said to be meridional, or mer. Click to see full answer
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