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posted by  esko63 on 11/30/2008 5:59:25 PM  |  status: Closed  

Sigma and Pi bonds.

Course Textbook Chapter Problem
General Chemistry Chemistry and Chemical Reactivity (7th) by Kotz, R., Treichel N/A N/A
Question Details:
For novel chromium complexes with CO and NO+ ligands it can be expected that [Cr(CO)3(NO)2]o
is more stable than [Cr(CO)5]2-. Offer a rationale in terms of relative σ and/vs. π bond strengths.
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posted by Werner on 12/1/2008 6:37:42 AM  |  status: Live
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esko63's comment:
"Thanks so much, clarified a lot."
Response Details:
  CO ligand is good σ donar and π acceptor than NO+ . So CO can form back bonding easily with metal ion than NO+.
 Hence [Cr(CO)3(NO)2]o is more stable than [Cr(CO)5]2-.
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