The S0 → S4 transition jet-cooled fluoranthene: vibronic coupling of S4 with S3

The S O ~ S 4 transition of jet - cooled fluoranthene : vibronic coupling of S 4 with S 3 1

The S~ ~ S O fluorescence excitation spectrum of fluoranthene in a continuous supersonic jet was measured in the region of the S o ~ S 4 absorption band. The vibrational structure of $4 was studied up to excess energies of = 1600 cm] above the $4. o origin at = 35664 cm1. In total 19 vibronic transitions were observed. The origin of the S o ~ S 4 absorption band consists of at least two transit...

Rotational spectroscopy and equilibrium structures of S3 and S4.

The sulfur molecules thiozone S3 and tetrasulfur S4 have been observed in a supersonic molecular beam in the centimeter-wave band by Fourier transform microwave spectroscopy, and in the millimeter- and submillimeter-wave bands in a low-pressure glow discharge. For S3 over 150 rotational transitions between 10 and 458 GHz were measured, and for S4 a comparable number between 6 and 271 GHz. The s...

Deletion of the S3–S4 Linker in theShaker Potassium Channel Reveals Two Quenching Groups near the outside of S4

When attached outside the voltage-sensing S4 segment of the Shaker potassium channel, the fluorescent probe tetramethylrhodamine (TMRM) undergoes voltage-dependent fluorescence changes (DeltaF) due to differential interaction with a pH-titratable external protein-lined vestibule (Cha, A., and F. Bezanilla. 1998. J. Gen. Physiol. 112:391-408.). We attached TMRM at the same sites [corresponding t...

The Incompleteness of S4 ⨁ S4 for the Product Space

Shehtman introduced bimodal logics of the products of Kripke frames, thereby introducing frame products of unimodal logics. Van Benthem, Bezhanishvili, ten Cate and Sarenac generalize this idea to the bimodal logics of the products of topological spaces, thereby introducing topological products of unimodal logics. In particular, they show that the topological product of S4 and S4 is S4 ⊕ S4, i....

S4 Text