Molecular Spectra of Sulfur Molecules and Solid Sulfur Allotropes

Polysulfides as Intermediates in the Oxidation of Sulfide to Sulfate by Beggiatoa spp

“…Additionally, two weak S 8 ring vibration peaks and a 272-cm Ϫ1 peak occurred in the SOSOS bending region. The 272-cm Ϫ1 peak is characteristic of long-chain (n Ն 8) polymeric sulfur (30).…”

S2O, polysulfuroxide and sulfur polymer on Io's surface?

“…These small sulfur allotropes are most probably responsible for the red color of S 2 O condensates. In fact, S 3 has a strong and wide absorption band between 350 and 440 nm (Hassanzadeh and Andrews, 1992;Billmers and Smith, 1991), while for S 4 , its dominant and most stable isomer, the C 2v one, has an absorption band centered around 518 nm and its C 2h isomer absorbs light between 560 and 660 nm (Hassanzadeh and Andrews, 1992;Wong and Steudel, 2003;Eckert and Steudel, 2003).…”

Atomic structure of the (001) surface of CuGaSe2

“…E DFT CuGaSe 2 is the total energy of bulk CuGaSe 2 in its tetragonal phase and E DFT Se is calculated in its pure orthorombic α phase [27]. As regards Cu and Al, the B3LYP approximation does not provide accurate energies for metals and, therefore, E DFT Cu and E DFT Ga are calculated using the experimental standard formation enthalpies, ∆G 0 , of GaSe and Cu 3 Se 2 as, [29] and ∆G • Na 2 Se = −3.55eV [30] were estimated using differential thermal analysis.…”