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In [Mo2(S2)6]2- cluster the number of bridging S22- and coordination number of Mo respectively, are
- a)2 and 8
- b)2 and 6
- c)1 and 8
- d)1 and 6
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In [Mo2(S2)6]2-cluster the number of bridging S22-and coordination num...
The coordination number of an atom in a molecule or polyatomic ion is defined as the number of atoms attached to it, excluding any lone pair.
In the [Mo2(S2)6]2- complex, since it's hypothesized that the disulfide ions (S2)2- are acting as bridging ligands, each disulfide ion can link the two molybdenum ions. There are 2 bridging disulfide ions, along with 4 terminal disulfide ions. This results in each molybdenum ion being bonded to 8 sulfurs. So the coordination number of the Mo atom here would be 8.
About the bridging ligands: A ligand that connects two or more atoms is termed a bridging ligand. The bridging ligand can stalk to each atom using one or more of its lone pairs in a μ (mu) mode of bonding , and the electron pairs it uses are referred to as bridging pairs. The disulfide ion (S2)2- here is expected to function as a bridging ligand.
In transition metal sulfur chemistry, the disulfide ion (S2)2- can either bind to the metal in a µ (S,S’)-bridging mode, as discussed here with Mo, or it can also bind to the metal via one sulfur atom (in a terminal bonding mode).
So, In [Mo2(S2)6]2- cluster the number of bridging S22- and coordination number of Mo respectively, are 2,8.
In the [Mo2(S2)6]2- complex, since it's hypothesized that the disulfide ions (S2)2- are acting as bridging ligands, each disulfide ion can link the two molybdenum ions. There are 2 bridging disulfide ions, along with 4 terminal disulfide ions. This results in each molybdenum ion being bonded to 8 sulfurs. So the coordination number of the Mo atom here would be 8.
About the bridging ligands: A ligand that connects two or more atoms is termed a bridging ligand. The bridging ligand can stalk to each atom using one or more of its lone pairs in a μ (mu) mode of bonding , and the electron pairs it uses are referred to as bridging pairs. The disulfide ion (S2)2- here is expected to function as a bridging ligand.
In transition metal sulfur chemistry, the disulfide ion (S2)2- can either bind to the metal in a µ (S,S’)-bridging mode, as discussed here with Mo, or it can also bind to the metal via one sulfur atom (in a terminal bonding mode).
So, In [Mo2(S2)6]2- cluster the number of bridging S22- and coordination number of Mo respectively, are 2,8.
Most Upvoted Answer
In [Mo2(S2)6]2-cluster the number of bridging S22-and coordination num...
Explanation:
Number of Bridging S22-
- In the given cluster [Mo2(S2)6]2-, there are a total of 6 bridging S22- ions.
- Each Mo atom is coordinated to 3 bridging S22- ions in the cluster.
Coordination Number of Mo
- The coordination number of Mo in the [Mo2(S2)6]2- cluster is the total number of ligands attached to the central Mo atom.
- In this case, each Mo atom is coordinated to 6 S2- ligands (3 bridging and 3 terminal), giving a coordination number of 6.
Therefore, the correct answer is option 'A' which states that the number of bridging S22- ions is 2 and the coordination number of Mo is 8.
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In [Mo2(S2)6]2-cluster the number of bridging S22-and coordination number of Mo respectively, area)2 and 8b)2 and 6c)1 and 8d)1 and 6Correct answer is option 'A'. Can you explain this answer?
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