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What is the coordination number of Ni in...

What is the coordination number of Ni in nickel DMG complex?

A

2

B

3

C

6

D

4

Text Solution

AI Generated Solution

The correct Answer is:
To determine the coordination number of nickel (Ni) in the nickel-DMG (dimethylglyoxime) complex, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Ligand**: - DMG (dimethylglyoxime) is a bidentate ligand. This means that each DMG molecule can form two bonds with the central metal atom (Ni in this case). 2. **Count the Number of DMG Ligands**: - In the nickel-DMG complex, there are two DMG ligands present. 3. **Calculate the Total Coordination**: - Since each DMG ligand can attach through two donor atoms, the total number of donor atoms from the two DMG ligands is: \[ \text{Total donor atoms} = 2 \, (\text{from one DMG}) \times 2 \, (\text{number of DMG ligands}) = 4 \] 4. **Determine the Coordination Number**: - The coordination number is defined as the number of nearest neighbor atoms (or donor atoms) that are bonded to the central metal atom. In this case, since there are four donor atoms from the two DMG ligands, the coordination number of Ni in the nickel-DMG complex is: \[ \text{Coordination number of Ni} = 4 \] 5. **Conclusion**: - Therefore, the coordination number of nickel (Ni) in the nickel-DMG complex is **4**.
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Co^(2+)(aq.)+SCN^(-)(aq.)to"Complex"(X) Ni^(2+)(aq.)+"Dimethylglyoxime"overset(NH_4OH)to"Complex"(Y) . The coordination number of cobalt and nickel in complexes X and Y is four. The geometry of complexes (X) and (Y) are respectively :

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Knowledge Check

  • What is/are the coordination number(s) of Au in the complexes formed by Au?

    A
    6
    B
    4
    C
    5
    D
    2

  • What is/are the coordination number(s) of Au in the complexes formed by Au?

    A
    6
    B
    4
    C
    5
    D
    2

  • Co^(2+)(aq.)+SCN^(-)(aq.)to"Complex"(X) Ni^(2+)(aq.)+"Dimethylglyoxime"overset(NH_4OH)to"Complex"(Y) . The coordination number of cobalt and nickel in complexes X and Y is four. The IUPAC name of the complexes (X) and (Y) are respectively:

    A
    Tetrathiocyanato-S-cobalt(II) and Bis(dimethylglyoximate) nickel(II)
    B
    Tetrathiocyanato-S-cobaltate(II) and Bis(dimethylglyoximate) nickel(II)
    C
    Tetrathiocyanato-S-cobalt(II) and Bis(dimethylglyoximate) nickelate(II)
    D
    Tetrathiocyanato-S-cobalt(III) and Bis(dimethylglyoximate) nickel(II)

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    Co^(2+)(aq)+SCN^(-)(aq) to "complex" (X) . Ni^(2+)(aq)+"Dimethylglyoxime" overset(NH_(4)OH) to "Complex" (Y) . The coordination number of cobalt and nickel in complexes X and Y are four. The geometry of complexes (X) and (Y) are respectively :

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