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Topic: Sigma and Pi acceptors in Ligands  (Read 1314 times)

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Offline cappuccino

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Sigma and Pi acceptors in Ligands
« on: April 03, 2016, 09:54:31 PM »
When electrons are back bonded from the metal to the σ* antibonding orbital in the ligand, why is this ligand a pi-acceptor? Also, why isn't there such a thing as sigma acceptors?

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