Article

Autor: Steven M Barnett, Antonín Vlcek, Jr., Ian S Butler
Rok vydání: 1998
Předmět:
Zdroj: Canadian Journal of Chemistry. 76:158-163
ISSN: 1480-3291
0008-4042
DOI: 10.1139/v97-222
Popis: Pressure-tuning infrared and Raman spectroscopic studies were performed on (2,2'-bipyridine)tetracarbonyl-chromium(0), Cr(CO)4(bpy). Previous bpy ring mode assignments were confirmed with new assignments offered by examination of the pressure-induced alterations in the vibrational spectra. The electron-density distribution of the bipyridyl ligand (and consequently, the electron-donating ability to the central metal) is modulated by the application of pressure. The pressure dependence of the carbonyl moieties reveals that the bipyridyl ligand can accommodate a significant portion of the molecular compressibility at higher pressures.Key words: infrared, Raman, pressure, Cr(CO)4(bpy), metal carbonyl.
Databáze: OpenAIRE