title: VCD studies on chiral characters of metal complex oligomers.
abstract: The present article reviews the results on the application of vibrational circular dichroism (VCD) spectroscopy to the study of stereochemical properties of chiral metal complexes in solution. The chiral characters reflecting on the vibrational properties of metal complexes are revealed by measurements of a series of β-diketonato complexes with the help of theoretical calculation. Attention is paid to the effects of electronic properties  of a central metal ion on vibrational energy levels or low-lying electronic states.  The investigation is further extended to the oligomers of β-diketonato complex units.  The induction of chiral structures is confirmed by the VCD spectra when chiral inert moieties are connected with labile metal ions. These results have demonstrated how VCD spectroscopy is efficient in revealing the static and dynamic properties of mononuclear  and multinuclear chiral metal complexes, which are difficult to clarify by means of  other spectroscopes.
authors.affiliation: Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan. sato.hisako.my@ehime-u.ac.jp.
authors.forename: Hisako
authors.initials: H
authors.lastname: Sato
authors.forename: Akihiko
authors.initials: A
authors.lastname: Yamagishi
mesh_terms: D002942:Circular Dichroism / Q000379:methods*; D056831:Coordination Complexes / Q000737:chemistry*; D019281:Dimerization; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D012996:Solutions; D013237:Stereoisomerism
chemical_list: D056831:Coordination Complexes; D008670:Metals; D012996:Solutions