University of Sussex
Browse

File(s) not publicly available

Evidence of zinc superoxide formation in the gas phase: Comparisons in behaviour between ligated Zn(I/II) and Cu(I/II) with regard to the attachment of O2 or H2O

journal contribution
posted on 2023-06-07, 23:16 authored by Hazel CoxHazel Cox, Caroline Norris, Guohua Wu, Jingang Guan, Stephen Hessey, Anthony J Stace
Singly and doubly charged atomic ions of zinc and copper have been complexed with pyridine and held in an ion trap. Complexes involving Zn(II) and Cu(I) (3d10) display a strong tendency to bind with H2O, whilst the Zn(I) (3d104s1) complexes exhibit a strong preference for the attachment of O2. DFT calculations show that this latter result can be interpreted as internal oxidation leading to the formation of superoxide complexes, [Zn(II)O2-](pyridine)n, in the gas phase. The calculations also show that the oxidation of Zn(I) to form Zn(II)O2- is promoted by a mixing of the occupied 4s and vacant 4p orbitals on the metal cation, and that this process is facilitated by the presence of the pyridine ligands.

History

Publication status

  • Published

Journal

Dalton Transactions

ISSN

1477-9226

Publisher

Royal Society of Chemistry

Issue

42

Volume

40

Page range

11200-11210

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC