Liu, Zhongyu published the artcileObservation of Core Phonon in Electron-Phonon Coupling in Au25 Nanoclusters, Name: 2-Phenylethanethiol, the publication is Journal of Physical Chemistry Letters (2021), 12(6), 1690-1695, database is CAplus and MEDLINE.
Temperature-dependent optical properties are of paramount importance for fundamentally understanding the electron-phonon interactions and phonon modes in atomically precise nanocluster materials. In this work, low-temperature optical absorption spectra of the icosahedral [Au25(SR)18]– nanocluster are measured from room temperature down to liquid helium temperature by adopting a thin-film-based technique. The thin-film measurement is further compared with results from the previous solution-based method. Interestingly, the previously missing core phonon is revealed by a quant. anal. of the film data through peak deconvolution and fitting of the temperature trend with a theor. model. The two lowest-energy absorption peaks (at 1.6 and 1.8 eV) of Au25 are determined to couple with the staple-shell phonon (average energy ~350 cm-1) in the solution state, but in the solid state these electronic transitions couple with the core phonon (average energy ~180 cm-1). The suppression of the staple-shell phonon in the solid state is attributed to the intracluster and cluster-matrix interactions.
Journal of Physical Chemistry Letters published new progress about 4410-99-5. 4410-99-5 belongs to alcohols-buliding-blocks, auxiliary class Thiol,Benzene, name is 2-Phenylethanethiol, and the molecular formula is C8H10S, Name: 2-Phenylethanethiol.
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