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Introduction to d-Block Chemistry - Wits Structural Chemistry

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<strong>Introduction</strong> <strong>to</strong> d-<strong>Block</strong> <strong>Chemistry</strong>Coordination Numbers and GeometriesC.N. = 4:• Square planar (D 4h ) complex are also encountered butrarer than T d• Often associated with d 8 (but not limited <strong>to</strong>) configurationsof metals belonging g <strong>to</strong> the 4d- and 5d-series (Rh + , Pd 2+,Au 3+, etc.)D 4hsymmetry• E.g’s of square planar complexes (note, all d 8 ):

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