Kuhn, Norbert; Kreutzberg, Joerg; Lampe, Eva-Maria; Blaeser, Dieter; Boese, Roland:
Heterocycles as ligands. XVIII. Synthesis and structure of tricarbonyl(1,2,3,4,5-pentamethylpyrrole)chromium(0) - the effect of methylsubstitution on the coordination properties of the pyrrole ligand.
1993
In: Journal of Organometallic Chemistry, Jg. 458 (1993), Heft 1-2, S. 125 - 129
Artikel/Aufsatz in Zeitschrift / Fach: Chemie
Titel:
Heterocycles as ligands. XVIII. Synthesis and structure of tricarbonyl(1,2,3,4,5-pentamethylpyrrole)chromium(0) - the effect of methylsubstitution on the coordination properties of the pyrrole ligand.
Autor(in):
Kuhn, Norbert; Kreutzberg, Joerg; Lampe, Eva-Maria; Blaeser, Dieter; Boese, Roland im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr
1993
Erschienen in:
Journal of Organometallic Chemistry, Jg. 458 (1993), Heft 1-2, S. 125 - 129
ISSN

Abstract:

Tricarbonyl(1,2,3,4,5-pentamethyl)chromium(0) (I) is obtained from pentamethylpyrrole and tetracarbonyl(norbornadiene)chromium(0) in good yield. The mol. geometry of I calcd. from x-ray data indicates pentamethylpyrrole to be a stronger donor ligand on comparison with N-methylpyrrole in tricarbonyl(N-methylpyrrole)chromium(0). This result is confirmed by an AM1 calcn. of N-methylpyrrole and pentamethylpyrrole.