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What is the nature of bonding in [Fe(CO)3(NO)]− and [Fe(CO)4]2−?

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2020
Authors
Gruden, Maja
Zlatar, Matija
Article (Published version)
,
Springer Nature
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Abstract
To shed new light on the electronic structure of [Fe(CO)3(NO)]¯ complex ion, DFT-based analysis of the nature of chemical bonding has been performed. For this purpose, the extended transition state energy decomposition analysis alongside the natural orbitals for chemical valence has been used and results are compared to the nature and the strength of the interactions in isoelectronic [Fe(CO)4]2− complex ion. Based on orbital contribution to the interaction energy and charge flow between the fragments, the ground state can be best described as an open-shell singlet with zero formal oxidation state on iron and negative charge on the nitrosyl ligand. It is in agreement with the different nature of interactions when NO+ and CO ligands are bonded to Fe(−II).
Keywords:
Chemical bonding / Energy decomposition analysis / DFT / Oxidation states / Iron complexes / Electronic structure / Nitrosyl ligand / Non-innocent ligand
Source:
Theoretical Chemistry Accounts, 2020, 139, 7, 126-
Publisher:
  • Springer Nature
Projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200168 (University of Belgrade, Faculty of Chemistry) (RS-200168)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
Note:
  • The peer-reviewed version: http://cer.ihtm.bg.ac.rs/handle/123456789/3596

DOI: 10.1007/s00214-020-02639-3

ISSN: 1432-881X; 1432-2234

WoS: 000544964500001

Scopus: 2-s2.0-85087300051
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URI
https://rdcu.be/b5oD6
http://cer.ihtm.bg.ac.rs/handle/123456789/3595
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