Cobalt Chloride Complexes of N3 and N4 Donor Ligands

• Published in: European journal of inorganic chemistry Vol. 2003; no. 4; pp. 648 - 655
• Main Authors: Kooistra, T. Martijn, Hekking, Koen F. W., Knijnenburg, Quinten, de Bruin, Bas, Budzelaar, Peter H. M., de Gelder, René, Smits, Jan M. M., Gal, Anton W.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01-02-2003; WILEY‐VCH Verlag
• Subjects: Cobalt; N Ligands; Polymerisation
• ISSN: 1434-1948; 1099-0682
• DOI: 10.1002/ejic.200390090

A number of cobalt(II) chloride complexes of pyridine/amine N3 and N4 donors have been prepared and structurally characterised. Even though they are paramagnetic, assignment of the 1H NMR signals was possible in several cases. With the exception of tpa, which formed a cationic monochloride complex, all new complexes have cis‐coordinated chlorides. Nevertheless, only the relatively rigid pyp ligands gave rise to (low) ethene polymerisation activity on activation with MAO. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)