Emission spectra of BHn fragments (n=0-3) from the 193 nm photolysis of diborane

✍ Scribed by J.A. Harrison; R.F. Meads; L.F. Phillips

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 458 KB
• Volume: 148
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(88)80287-2

✦ Synopsis

Emission spectra observed during the ArF 193 nm laser photolysis of diborane have been assigned, on the basis of band type and laser power dependence, to new transitions of BHr and BHr. Known transitions of BH and atomic boron were also observed. The BH and BHr bands, excited by twophoton absorption, show extremely non-Boltzmann rotational distributions in the upper state. The BH, bands result from single-photon absorption and arise from two distinct BH, populations, one of which is rotationally very cold.