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inorganic reaction mechanisms ???


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  • 2 weeks later...

i don't know correct ans . but acc. to me its n't because of NO but due to formation of pentavalent ( sp3d hybridization ) transition state (as in your case) which acc. to Werner theory is highly unstable so complex again get its tetravalent state .:rolleyes:

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Unfortunately Vedmecum, it is indeed due to the reversible 1e (bent ) NO and 3e (linear) NO interconversion. There are a number of other ligands which show similar effects eg the indenyl ligand which can flip eta-3 to eta-5. The complexes above are coordinatively unsaturated, the 1e (bent) NO configuration makes them electronically unsaturated 16e species, which then exhibit very low activation energy associative ligand substitution mechanisms

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