How π back-donation quantitatively controls the CO stretching response in classical and non-classical metal carbonyl complexes

Author:

Bistoni Giovanni12345ORCID,Rampino Sergio645ORCID,Scafuri Nicola78910,Ciancaleoni Gianluca645ORCID,Zuccaccia Daniele111125ORCID,Belpassi Leonardo645ORCID,Tarantelli Francesco12345ORCID

Affiliation:

1. Dipartimento di Chimica

2. Biologia e Biotecnologie

3. Università di Perugia

4. 06123 Perugia

5. Italy

6. Istituto di Scienze e Tecnologie Molecolari del CNR

7. Institut Charles Gerhardt

8. Université Moltpellier 2

9. 34095 Montpellier Cedex 5

10. France

11. Fisica e Ambiente

12. 33100 Udine

Abstract

We definitively show that the CO stretching response to metal coordination is driven exclusively by π polarization, which quantitatively correlates with π back-donation and changes in CO bond length and frequency.

Publisher

Royal Society of Chemistry (RSC)

Subject

General Chemistry

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