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    I think I am overtired but I can't for the life of me think of the electronic configuration of [Mn(H2O)6]2+

    It is the 2+ on the outside making me question myself... The (H20)6 is the octahedral ligand attached to Mn...

    Any help is appreciated (this is my first chemistry module, all my other modules have been biology so far so just trying to get to grips with it)




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    (Original post by Lambert87)
    I think I am overtired but I can't for the life of me think of the electronic configuration of [Mn(H2O)6]2+

    It is the 2+ on the outside making me question myself... The (H20)6 is the octahedral ligand attached to Mn...

    Any help is appreciated (this is my first chemistry module, all my other modules have been biology so far so just trying to get to grips with it)

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    Yes, H2O is a neutral ligand.
    The 2+ charge is on the manganese ion, hence it is a d5 metal centre. Considering the low oxidation state, the weak field ligand (OH2) and the period, the splitting energy is going to be small, so likely the complex will be high-spin with the t2g level triply occupied, and the eg level doubly occupied. Due to this, it is unlikely that there'll be any Jahn-Teller distortion, so you needn't worry about the loss of degeneracy of any z-component d orbitals.

    I don't know how much info was suitable, so pick and choose as you will.
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    (Original post by Infraspecies)
    Yes, H2O is a neutral ligand.
    The 2+ charge is on the manganese ion, hence it is a d5 metal centre. Considering the low oxidation state, the weak field ligand (OH2) and the period, the splitting energy is going to be small, so likely the complex will be high-spin with the t2g level triply occupied, and the eg level doubly occupied. Due to this, it is unlikely that there'll be any Jahn-Teller distortion, so you needn't worry about the loss of degeneracy of any z-component d orbitals.

    I don't know how much info was suitable, so pick and choose as you will.
    Absolute legend thanks so much!!


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