Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Chemistry and Pharmacology
The title complexes, (C5H6N)[Ce(NO3)4(C15H11N3)]·C5H5N or (Hpy)[Ce(NO3)4(terpy)]·py, (I) (py is pyridine, C5H5N, and terpy is terpyridine, C15H11N3), and [Ce(NO3)3(C15H11N3)(CH4O)2] or [Ce(NO3)3(terpy)(OHCH3)2], (II), are 11-coordinate. The coordination polyhedron of the Ce atom in (I) is irregular, while that in (II) can be described as an icosahedron with two vertices replaced by one.
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