Other
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confewg12a&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
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Electronic
Scientific paper
Iridium-containing moieties are prevalent in asymmetric catalytic systems. For this reason, diatomic Ir containing species have been the subject of both theoretical and experimental studies. We have investigated IrH/D using our laser ablation molecular jet apparatus. After searching from 380 - 820 nm, eight rotationally-resolved bands for both IrH and IrD were observed. The spectra were determined to belong to several ^3Φ_4 - X^3Φ_4 transitions. No other spin-orbit components were observed in either the excited or ground states. A global fit of the bands was performed for each molecule. The molecular parameters have been compared with those of the valence isoelectronic molecules, CoH and RhH. Ground state vibrational frequencies have been determined, from dispersed fluorescence spectra, to be ΔG1/2 = 2140(11) Cm-1 for IrH and ω_e'' = 1609(2) Cm-1 and ω_ex_E'' = 19.3(5) Cm-1 for IrD. The ground state bond length of IrH was determined to be 1.603 Å somewhat in agreement with the theoretical prediction of R_E'' = 1.565 Å of Dai and Balasubramanian.
D. Dai and K. Balasubramanian New. J. Chem. 15, 721-726 (1991)
Adam A. G.
Granger A. D.
Linton Chris
Tokaryk D. W.
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