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Keywords:

  • Ferrocenes;
  • Isocyanates;
  • Isothiocyanates;
  • Isoselenocyanates;
  • Crystal structures;
  • NMR (multinuclear) spectroscopy

Abstract

Isocyanato- (1a), 1,1′-di(isocyanato)- (2a), isothiocyanato- (1b), 1,1′-di(isothiocyanato)- (2b), isoselenocyanato- (1c) and 1,1′-di(isoselenocyanato)ferrocene (2c) were prepared and studied by 1H, 13C and 14N NMR spectroscopy. Isocyanatoferrocene (1a) trimerizes upon chromatography on alumina to give 3a. The molecular structures of 2c and 3a were determined by X-ray analysis, and almost undistorted ferrocene-like structures were found in both cases.