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Synthesis and structural characterisation of novel nickelaindenyl and nickelafluorenyl compounds: Differences in the bonding modes of nickelacyclic rings |
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| Authors: | Piotr Buchalski Andrzej Kozio? Antoni Pietrzykowski Monika Zdziemborska |
| Affiliation: | a Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00-662 Warsaw, Poland b Institute of Physical Chemistry of the Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland |
| Abstract: | New binuclear nickelacyclic compounds 1 (η5-pentamethylcyclopentadienyl)(η3-(1-(η5-pentamethylcyclopentadienyl))-1-nickelafluorenyl)nickel and 2 (η5-pentamethylcyclopentadienyl)(η3-(1-(η5-pentamethylcyclopentadienyl))-2-phenyl-3-ethyl-1-nickelaindenyl)nickel were synthesised in reactions of dilithioorganic compounds with Cp∗Ni(acac) and characterised by high resolution mass spectrometry, magnetic moment determination and X-ray single crystal analysis. The bonding mode of the central nickel atom to the nickelaindenyl and nickelafluorenyl ligands was not η5 like in the previously described analogues of nickelocene but half way between η3 and η5. |
| Keywords: | Nickel Organolithium compounds Clusters Cyclopentadienyl Metallacyclic compounds |
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