Matrix Raman studies of Bin(n ⩾ 2) molecules

Spectroscopy of Jet-Cooled Bi3

“…This is quite reasonable for a vibrational motion in Bi 3 . Furthermore, this value is consistent with the results of matrix isolation resonance Raman 61 and dispersed fluorescence studies, 40,41,43,44 which demonstrate a vibrational progression with ω 1 ′′ ) 149.7 cm -1 and x 11 ′′ ) -0.14 cm -1 in neon a Excitations of the bending modes labeled 20 2 or 30 2 are labeled as they were in the original matrix isolation investigation (ref 41). It is likely that these levels are more properly considered in the context of a 2 E′ excited-state that is subject to a Jahn-Teller effect.…”

Reactions of Ground State and Electronically Excited Atoms of Main Group Elements: a Matrix Perspective

“…There are other practical difficulties too, associated with light scattering by the solid host material in matrix experiments, and with the risks of heating, photolysis, or fluorescence under the action of the exciting radiation. Perhaps the most spectacular successes have come with the resonance enhancement, which can be achieved under appropriate conditions, as in the cases of matrix-isolated Sn 2 , Pb 2 , Bi 2 , , Bi 4 , and Te 3 , that is, products of aggregation reactions of the relevant atoms. Electron-transfer reactions involving metal atoms and either O 3 or I 2 lead to the products M + O 3 - (M = Mg, Ca, Sr, or Ba) or M + I 2 - (M = alkali metal), which have also been characterized under matrix conditions by their resonance Raman spectra.…”

“…come with the resonance enhancement, which can be achieved under appropriate conditions, as in the cases of matrix-isolated Sn 2 , 107 Pb 2 ,108 Bi 2 ,85,109 Bi 4 ,109 and Te 3 ,110 that is, products of aggregation reactions of the relevant atoms. Electron-transfer reactions involving metal atoms and either O 3 or I 2 lead to the products M + O 3 -(M ) Mg, Ca, Sr, or Ba)…”

Low-Lying Electronic States in Bismuth Trimer Bi3 As Revealed by Laser-Induced NIR Emission Spectroscopy in Solid Ne

“…Subsequent studies, conducted in Ne and Ar matrixes, found a vibrational frequency of 173 cm –1 for Bi 2 , in agreement with the gas phase value. Dispersed fluorescence spectra that exhibited the vibrational interval of 150 cm –1 were ascribed to a larger Bi n cluster, thought to be more probably Bi 4 . , This was followed by some matrix isolation studies. − More recently, Arrington and Morse examined another band system at T 0 = 15279.43 cm –1 by R2PI spectroscopy to detect a mass signal of trimer cation, Bi 3 + . With this observation, the authors concluded that the carrier of the transition system at T 0 = 15250 cm –1 in solid Ne previously assigned to tetramer, Bi 4 , , should be Bi 3 .…”

“…Bismuth is a heavy element of semimetallic properties in its solid form. Molecular bismuth, Bi n ( n = 2–4), exists in its vapor phase, as investigated by trapping molecules in rare-gas matrixes. − Arrington and Morse observed recently vibronic systems in triatomic bismuth, Bi 3 , in the near-infrared (NIR) region by resonant two-photon ionization (R2PI) spectroscopy in the gas phase, locating their origin bands at 9626 and 9673 cm –1 . Very recently, NIR emission band systems were newly found for small bismuth molecules in solid neon matrixes upon excitation with 692 nm photons .…”