6814 Suchergebnisse für: „“

A Concept to Tailor Electron Delocalization: Applying QTAIM Analysis to Phenyl-Terpyridine Compounds

To gain a deeper understanding of how structural modifications may influence photochemical properties of 4′-phenyl-2,2′:6′,2′′-terpyridines, the investigations presented here focus on electron...

Non-isothermal bleaching of photodarkened Yb-doped fibers

We report on the thermal treatment of photodarkened Yb-doped fiber samples. The method of non-isothermal bleaching at different temperature ramp rates can be used to determine the thermal energy distribution...

Thermal regeneration of fiber Bragg gratings in photosensitive fibers

We report about a thermal regeneration of fiber Bragg gratings written in photosensitive fibers with nanosecond laser pulses. We observe a regenerative process in a highly photosensitive fiber without...

Tip-enhanced Raman scattering (TERS) and high-resolution bio nano-analysis-a comparison

This perspective presents and assesses the development and capabilities of tip-enhanced Raman scattering (TERS) since its discovery in 2000. So far, this technique has proven to be valuable for studies...

Derivation of Correlation Functions to Predict Bond Properties of Phenyl-CH Bonds Based on Vibrational and H-1 NMR Spectroscopic Quantities

Models for the Active Site in [FeFe] Hydrogenase with Iron-Bound Ligands Derived from Bis-, Tris-, and Tetrakis(mercaptomethyl)silanes

A series of multifunctional (mercaptomethyl)silanes of the general formula type RnSi(CH2SH)4-n (n = 0-2; R = organyl) was synthesized, starting from the corresponding (chloromethyl)silanes. They were used...

Complete modal decomposition for optical fibers using CGH-based correlation filters

The description of optical fields in terms of their eigenmodes is an intuitive approach for beam characterization. However, there is a lack of unambiguous, pure experimental methods in contrast to numerical...

Arrays of Regenerated Fiber Bragg Gratings in Non-Hydrogen-Loaded Photosensitive Fibers for High-Temperature Sensor Networks

We report about the possibility of using regenerated fiber Bragg gratings generated in photosensitive fibers without applying hydrogen loading for high temperature sensor networks. We use a thermally induced...

Photophysics of an Intramolecular Hydrogen-Evolving Ru-Pd Photocatalyst

Photoinduced electron-transfer processes within a precatalyst for intramolecular hydrogen evolution [(tbbpy)2Ru(tpphz)PdCl2]2+ (RuPd; tbbpy=4,4′-di-tert-butyl-2,2′-bipyridine, tpphz=tetrapyrido[3,2-a:2′,3′c:3′′,2′′,-h:2′′′,3′′′-j]phenazine)...

Aromatic Amino Acid Monolayers Sandwiched between Gold and Silver: A Combined Tip-Enhanced Raman and Theoretical Approach

Tip-enhanced Raman scattering (TERS) measurements and theoretical calculations of the aromatic amino acids phenylalanine, tyrosine, and tryptophan sandwiched between gold and silver layers are presented...