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The number of valence electrons provided by Co(CO)4 fragment towards cluster bonding is ___________
    Correct answer is '5'. Can you explain this answer?
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    The number of valence electrons provided by Co(CO)4fragment towards cl...
    Each transition metal has 12 electrons associated with it that are reserved for non-framework bonding. Electron more than 12 electrons are involved in cluster bonding.
    Number of valence electron in Co(CO)4  =  17
    Hence, number of electrons towards cluster bonding = 17–12 = 5
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    The number of valence electrons provided by Co(CO)4fragment towards cl...
    Valence electrons provided by Co(CO)4 fragment towards cluster bonding:


    • The Co(CO)4 fragment is a metal carbonyl complex where Co represents the cobalt metal.

    • The Co atom in Co(CO)4 has a total of 9 valence electrons, out of which 7 are contributed by the Co atom, and the remaining 2 are donated by the CO ligands.

    • The CO ligands are considered as strong-field ligands that form a high spin complex with cobalt.

    • This means that the 4 CO ligands donate their 2 electrons each to the cobalt ion, and hence the cobalt ion has 9 total valence electrons.

    • Out of these 9 valence electrons, 4 are utilized by the CO ligands to form sigma bonds with the Co atom, and the remaining 5 electrons are left for cluster bonding.

    • These 5 valence electrons are used for bonding with other atoms or molecules to form a cluster compound with the Co(CO)4 fragment.

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    The number of valence electrons provided by Co(CO)4fragment towards cluster bonding is ___________Correct answer is '5'. Can you explain this answer?
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