Formate as a Surface Probe for Ruthenium Nanoparticles in Solution 13C NMR Spectroscopy
✍ Scribed by Karaked Tedsree; Adam T. S. Kong; Shik Chi Tsang
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 355 KB
- Volume
- 121
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Die Adsorption von Ameisensäure auf unterschiedlich großen Ru‐Nanopartikeln ermöglicht die Differenzierung verschieden gebundener Formiatspezies durch ^13^C‐NMR‐Spektroskopie in Lösung (siehe Bild). Die chemischen Verschiebungen sind ähnlich zu denen von metallorganischen Analoga; dies lässt den Schluss zu, dass Formiat als Sonde zur Unterscheidung von Oberflächenmerkmalen gelöster Metallnanopartikel mit guter Quantifizierung und Auflösung dienen kann.magnified image
📜 SIMILAR VOLUMES
Paramagnetic vanadocene gives easily recordable 1H and 13C solid-state NMR signals which are shifted by more than 300 and 500 ppm (to high and low frequency, at room temperature), respectively. The strong temperature dependence of these shifts is the basis of new NMR signal shift thermometers for so
The relationships between 13 C NMR chemical shifts of aromatic carbons and the inter-ring torsion angles (Â) of two phenyl rings in biphenyl and its substituted derivatives were systematically examined. The chemical shifts of C1, C2 and C6 carbons (υ C1 , υ C2 and υ C6 ) of the biphenyl group in the
Two conformations of the cis-cyclohexano-8-crown-3 molecule were detected at 185 K. From relative 13 C NMR peak area measurements, the conformation with the O-CH 2 -O unit equatorial was found to be favoured by 4.4 š 0.4 kJ mol 1 . In the spectrum of the minor conformer at low temperature, a 9.6 ppm