Terahertz spectroscopy: The renaissance of far infrared spectroscopy

Abstract

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Description of pnicogen bonding with the help of vibrational spectroscopy—The missing link between theory and experiment

“…There are 4 PH stretching modes (15)(16)(17)(18), the 2 PF stretching modes (7,8) and the 6 monomer bending modes (9)(10)(11)(12)(13)(14) where each of these normal modes is a combination of at least 4 local modes with varying contributions. Of special interest are the 6 modes with the lowest frequencies because they correspond to the intermonomer vibrations (see Figure 2), which can provide detailed information about pnicogen bonding.…”

“…There is a pressing need to identify and characterize pnicogen bonding more directly utilizing modern spectroscopic methods. Terahertz spectroscopy [14,15] or depolarized Raman scattering [16] are promising experimental tools, which can measure vibrational frequencies down to 50 cm −1 . This is a prerequisite to record the intermonomer frequencies of a pnicogen-bonded dimer.…”

Physicochemical Properties of Bosentan and Selected PDE-5 Inhibitors in the Design of Drugs for Rare Diseases

“…amino acids, peptides or proteins (24)(25)(26). FT-IR spectra of BOS, TA and SIL determined in a far-infrared range are shown in Fig.…”

Оптические свойства халькогенидных сплавов на основе теллура в дальнем инфракрасном диапазоне (lambda>30 мкм)

“…Так, для проекта Darwin были впервые использованы халькогенидные стекла на основе As, S и Se, позволяющие работать в окнах прозрач-ности атмосферы при 3−5 и 8−12 мкм [2]. Активное применение инфракрасных (ИК) волоконных светово-дов для оптической связи, медицины и экологии далее показало, что именно халькогенидные сплавы (ХС) являются наиболее перспективным материалом, работа-ющим с ИК излучением.…”