UV electronic spectra and structure of thallium-rare gas complexes

Photoionization spectroscopy of Ga-rare gas complexes

“…12,13 Hund's Case ͑c͒ is most appropriate for a description of complexes with the heavy Ga atom. However, since only one electron is involved, the discussion is identical to that of Hund's Case ͑a͒, so the Case ͑a͒ framework is used here for convenience.…”

“…Similar excited states have been studied previously for Al 6 and Tl. 13 Extensive progressions are measured here, providing good potential fits and reliable excited-state dissociation energies. Energetic cycles using these excited-state energetics make it possible to obtain multiple determinations of the ground-state dissociation energies for GaAr, GaKr, and GaXe.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] The group IIIA metals have a ground-state configuration of 2 P, which results in a corresponding 2 ⌸ molecular ground state for M-RG van der Waals complexes. In some cases there is significant spin-orbit splitting in the ground molecular state, and the bonding in the two component states may be noticeably different.…”

Experimental and theoretical study of the AlNe complex

“…The molecular electronic state arising from the first excited doublet Al atomic asymptote, Al(4s 2 S), is designated B 2 ⌺ ϩ , as in the other group 13 rare gas complexes. 3,4,6,[10][11][12][13][14][15][16][17][18]20,21 As Al(3d 2 D) is the next higher atomic state, the electronic states arising from this asymptote are denoted C 2 ⌬, D 2 ⌸, and E 2 ⌺ ϩ . Following this ordering, we designate the state arising from Al(5s 2 S) ϩRg as H 2 ⌺ ϩ , in agreement with the notation of Fu et al 21 for AlKr.…”

“…Complexes of the lightest of these, boron, have been studied intensively in our laboratory. [3][4][5][6][7][8][9][10] While complexes of the heavier atoms in this group ͑Ga, 11 In, 12,13 Tl 14,15 ͒ have also been investigated, those involving aluminum have received the most attention. [16][17][18][19][20][21][22] Gardiner and Lester 16 reported the first observation of the AlAr complex using resonance enhanced multiphoton ionization ͑REMPI͒ through the B 2 ⌺ ϩ -X 2 ⌸ 1/2 electronic transition, which correlates with the Al atomic 4s←3p transition.…”