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Paper | Regular issue | Vol 45, No. 8, 1997, pp.1477-1492
Published online, 1st January, 1970
DOI: 10.3987/COM-97-7772
Novel Double Tripodal Pyrazolyl Macrocycles. Synthesis and X-Ray Structure of Hexa-Azole Ligands

Johan E. Bol, Bas Maase, Gianella Gonesh, Willem L. Driessen,* Kees Goubitz, and Jan Reedijk

*Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O.Box 9502, Einsteinweg 55, 2300 RA Leiden, The Netherland


The synthesis and characterization of two new hexa-azole macrocyclic ligands, MEPY22PZ and ETPY24PZ, are described. The single crystal structure of ETPY24PZ shows two metal-binding sites with a tripodal N4 geometry. Coordination of 2 Cu(I) or 2 Zn(II) ions by each macrocycle by NMR complexation studies.