XX asked in 科學化學 · 1 decade ago

無機化學的Kepert model?

各位化學大大好喔!

想問一下無機化學的Kepert model是什麼?

和VSEPR有什麼不同?

各有什麼優缺點?

麻煩各位大大幫我解釋一下!

謝謝

1 Answer

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  • NINI
    Lv 5
    1 decade ago
    Favorite Answer

    VSEPR Theory and Kepert Model

    ‧ VSEPR theory successfully predicts the shapes of molecular species of the

    main group elements,but fails for d-block elements:

    [V(H2O)6]3+, [Mn(H2O)6]2+, [Co(H2O)6]2+, [Ni(H2O)6]2+, [Zn(H2O)6]2+ have

    different electron configurations, but identical shape (octahedral)

    –> the Kepert model rationalizes the shapes of d-block metal complexes by

    considering only the repulsions between the ligands:

    2 linear

    3 trigonal

    4 tetrahedral

    5 trigonal bipyramidal

    6 octahedral

    ‧ The Kepert model fails for square planar complexes (due to electronic

    effects) or inherent constraints of a ligand (e.g. tripodal ligand)

    來源:http://web.chemistry.gatech.edu/class/3111-6170/fa...

    ps這好像是上課用的pdf檔案,我查到的摘錄下來供你參考

    Source(s): 化學系的我+網路資料
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