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Resonant Raman Scattering of 4‐Nitrothiophenol
Author(s) -
Juergensen Sabrina,
Kusch Patryk,
Reich Stephanie
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.202000295
Subject(s) - raman spectroscopy , raman scattering , molecule , raman optical activity , resonance (particle physics) , thiophenol , spectroscopy , resonance raman spectroscopy , chemistry , materials science , x ray raman scattering , coherent anti stokes raman spectroscopy , atomic physics , optics , physics , organic chemistry , quantum mechanics , medicinal chemistry
Thiophenol‐based molecules are commonly used reporter molecules for various experiments, especially within the scope of surface‐ and tip‐enhanced Raman spectroscopy. Due to their molecular structure, they bind covalently to noble metals and have a huge Raman scattering cross section. Herein, the widely uncharted optical properties of the frequently used probe molecule 4‐nitrothiophenol (p‐NTP or 4‐NTP) are analyzed by resonant Raman spectroscopy. Based on the three different types of samples, it is demonstrated that the molecule exhibits two intrinsic resonances at specific wavelengths. For a wide range of experiments, this is an important information since intrinsic resonances may give rise to an enhancement of the Raman intensity at these specific excitation wavelengths. The Raman cross section of p‐NTP in resonance at 1.9 eV (650 nm) to be 6 × 10 −26 cm 2 per molecule is also measured.