Coordinatively unsaturated cobalt ion in Co+(H 2O)n (n = 4-6) probed with infrared photodissociation spectroscopy

Kazuki Furukawa, Kazuhiko Ohashi, Nobuhiro Koga, Toshitaka Imamura, Ken Judai, Nobuyuki Nishi, Hiroshi Sekiya

Research output: Contribution to journalArticle

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Abstract

The hydrated cobalt ions, Co+(H2O)n (n = 4-6), are studied with the infrared (IR) photodissociation spectroscopy in the OH-stretch region and density functional theory calculations. The calculations predict a T-shaped coordination structure for Co+(H 2O)3, which exposes empty coordination sites for additional H2O ligands. Nevertheless, the IR spectrum of Co +(H2O)4 indicates that the fourth H 2O prefers to occupy the second shell through H-bonding rather than coordinate directly to Co+. A comparison between the experimental and theoretical IR spectra suggests that the T-shaped coordination remains intact in the n = 4-6 ions, leaving the direct coordination sites unoccupied.

Original languageEnglish
Pages (from-to)202-206
Number of pages5
JournalChemical Physics Letters
Volume508
Issue number4-6
DOIs
Publication statusPublished - May 27 2011

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Photodissociation
Cobalt
photodissociation
cobalt
Spectroscopy
Ions
Infrared radiation
spectroscopy
ions
infrared spectra
Density functional theory
Ligands
density functional theory
ligands

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Coordinatively unsaturated cobalt ion in Co+(H 2O)n (n = 4-6) probed with infrared photodissociation spectroscopy. / Furukawa, Kazuki; Ohashi, Kazuhiko; Koga, Nobuhiro; Imamura, Toshitaka; Judai, Ken; Nishi, Nobuyuki; Sekiya, Hiroshi.

In: Chemical Physics Letters, Vol. 508, No. 4-6, 27.05.2011, p. 202-206.

Research output: Contribution to journalArticle

Furukawa, Kazuki ; Ohashi, Kazuhiko ; Koga, Nobuhiro ; Imamura, Toshitaka ; Judai, Ken ; Nishi, Nobuyuki ; Sekiya, Hiroshi. / Coordinatively unsaturated cobalt ion in Co+(H 2O)n (n = 4-6) probed with infrared photodissociation spectroscopy. In: Chemical Physics Letters. 2011 ; Vol. 508, No. 4-6. pp. 202-206.
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AU - Judai, Ken

AU - Nishi, Nobuyuki

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