IR-UV RESONANT TWO-PHOTON IONIZATION SPECTROSCOPY OF Sc$_n$(BENZENE)$_m$ (n =1, 2; m =1-3) AND Sc(BIPHENYL)
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Date
2008
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Ohio State University
Abstract
The complexes of Sc$_n$(C$_6$H$_6$)$_m$ (n =1, 2; m =1-3, n$\leq m$) and Sc(C$_{12}$H$_{10}$) were synthesized in a laser-vaporization metal cluster beam source. The C-H stretching frequencies of these complexes were measured with IR-UV resonant two-photon ionization spectroscopy. The experimental C-H stretching frequencies were compared with those of the free ligands and with the B3LYP/6-311+G(d,p) calculations. From these comparisons, the ground electronic states were determined to be $^4$A$_1$ (C$_{6v}$) for the half-sandwich Sc(C$_6$H$_6$), $^2$B$_{3g}$(D$_{2h}$) for the sandwich Sc(C$_6$H$_6$)$_2$ , $^1$A(D$_2$) for the double sandwich Sc$_2$(C$_6$H$_6$)$_3$ and $^2$B$_1$(C$_{2v}$) for the clamshell Sc(C$_{12}$H$_{10}$). The conclusions from this work are in consistent with the previous ZEKE spectroscopic studies.}$^,$}
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B. R. Sohnlein, S. Li, and D.-S. Yang, J. Chem. Phys. 123 (21), 214306 (2005).B. R. Sohnlein, J. F. Fuller, and D.-S. Yang, J. Am. Chem. Soc. 128 (33), 10692 (2006).
Author Institution: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055
Author Institution: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055