beta-Diketonates of Pd(II);
IR and Raman spectra;
DFT calculations;
CHEMICAL-VAPOR-DEPOSITION;
METAL-CHELATE COMPOUNDS;
THIN-FILM GROWTH;
INFRARED-SPECTRA;
CRYSTAL-STRUCTURE;
RAMAN-SPECTRA;
CHEMISTRY;
PLATINUM;
PRECURSORS;
COMPLEXES;
D O I:
10.1016/j.vibspec.2012.04.003
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
The IR- and Raman spectra of two palladium beta-diketonates, viz., palladium(II) hexafluoroacetylacetonate, Pd(hfac)(2), and palladium(II) dipivaloylmethanate, Pd(dpm)(2), were studied experimentally and theoretically. Density functional theory calculations were employed for detailed assignment of all important bands in the vibrational spectra of Pd(hfac)(2) and Pd(dpm)(2). The theoretically predicted geometry and wavenumbers are in a good agreement with the experimental values. The comparison of Raman spectra of palladium beta-diketonates in crystalline and gas phases allowed to separate the intramolecular and crystalline lattice normal modes. (C) 2012 Elsevier B.V. All rights reserved.