19F NMR study of ruthenium(IV) and osmium(IV) fluoronitrosyl complexes

New NMR investigation of [RuF5NO]2− anion

“…Those multiplicities indicate the axial and equatorial fluorine atoms, respectively. The same signals were reported at À409.5 and À142.2 ppm [18].…”

“…For the title complex, some spectroscopic properties, such as the 19 F NMR spectrum were published before. This study includes time decomposition processes monitored by this spectroscopy [18]. Our data shows two spin systems, a quintet (integrating for one F) at À411.1 ppm, and a doublet (integrating for four F) at À140.5 ppm.…”

“…The 19 F NMR spectrum of the pentafluornitrosylruthenate(II) ion shows only two signals corresponding to the compound analyzed. The NMR and infrared spectra were compared with those reported in the literature showing good agreement [14,15,18].…”

Kristallstruktur, Schwingungsspektren und Normalkoordinatenanalyse von (CH2py2)[Ru(NO)FCl4]

“…1 Moleku È lstruktur mit Atombezeichnungen und Schwingungsellipsoiden (50% Wahrscheinlichkeit) und stereographische Darstellung der Elementarzelle von (CH 2 py 2 )[Ru(NO)FCl 4 ]´1/ 2 (CH 3 …”

Nitrosylation of Hexafluoridotechnetate(IV)

“…This increases the electric field gradient at the metal nucleus and, thus, strengthens the quadrupole relaxation of the system 20. The 19 F NMR spectrum shows a resonance at –141 ppm, which is in accordance with values, which have been found earlier for fluorido ligands in the axial position of transition metal nitrosyl complexes such as [Ru(NO)F 5 ] 2– or [Os(NO)F 5 ] 2– 21. The protons of the NH 3 ligands rapidly exchange with D 2 O.…”