Zero kinetic energy (ZEKE) photoelectron spectroscopy of the rydberg excited iodine-argon van der waals complex

✍ Scribed by J.G. Goode; M.C.R. Cockett; K.P. Lawley; R.J. Donovan

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 779 KB
• Volume: 231
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(94)01254-7

✦ Synopsis

The I,-Ar van der Waals complex has been studied using two-colour (2 + 1') zero kinetic energy pulsed field ionisation spectroscopy. The ['I13,Jc 7s; 1, and the [2rI,,2]c 7s; 0: Rydberg states were used as resonant intermediate states for ionisation into the R ZlXs,2.8 and 2 2II1,2S p s in-orbit ionic states, respectively. The adiabatic ionisation energies have been determined as 74523 f 2 cm-' for the L% *l-l 3,Z,gsfate and 79692 f 3 cm-' for the jt 2II,,26 state. Vibrational constants have been determined for the IZ...Ar van der Waals stretching mode as w,=62f2 cm-' and w&~= 1.2kO.l cm-' for the ii 211j,2,p state and w,=62f2 cm-' and 0$,=1.7?0.1 cm-' fortheR%,,,,