X-Ray diffraction studies on catalysis: crystal structure of di-µ-trifluoroacetato-bis[(2-methylallyl-3-norbornyl)nickel(II)] and comparison with related nickel(II) and palladium(II) complexes
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 18,p. 1740-1743
- https://doi.org/10.1039/dt9750001740
Abstract
The crystal structure of the title compound (III) has been determined from diffractometer data (1 888 non-zero reflections) by the heavy-atom method and refined by least-squares to R 0.070. Crystalts are monoclinic, space group P21/c,a= 16.431 (3), b= 9.954(2), c= 16.614(3)Å, β= 92° 32′(2′),Z= 4. The structure is compared with those of the related nickel [(I) and (II)] and palladium complexes, (IV), in view of their relevance to norborn-ene polymerization catalysed by π-allyl nickel carboxylates. The molecular configuration is considered to be a key factor in the formation of mononuclear species, which are the active intermediates in the propagation reaction.Keywords
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