Cerium phthalocyanine

Cerium phthalocyanine, 7 64 Cerium tetrafluoride, 20 63-67 lattice parameters, 20 64 Cerium trifluoroacetates, 17 5, 26 Cermets, nitrides in, 9 81-82 Cerous ion, reaction with hydroxyl ions, 3 187 Ceruloplasmin, 40 123, see also Blue copper oxidases... 

Since the pioneering work of Kirin et al. [5] various lanthanide(III) and cerium(IV) complexes containing phthalocyanine ligands have been synthesized (Table 17) [213-221]. Equations 15a,b give typical methods of preparation for Ln(III) derivatives. 

Cerium also forms genuine bis(porphyrin) and bis(phthalocyanine) complexes with the metal in the (-b4) oxidation state. 

Fig. 14. Idealized D4 structure of cerium-di-phthalocyanine (H, white C, grey N, black Ce, grey, small). The ring-ring distance has been artificially increased for clarity.

Formally, tetravalent cerium is long known to form stable sandwich complexes with tetrapyrrole-type macrocyclic ligands such as porphyrines, phthalocyanines, and 2,3,-naphthalocyanines (Scheme 12). For the rare earth sandwich complex series, virtually all the neutral complexes can be formulated as Ln° (ring-1 ) (ring-2 ), in which a trivalent rare earth metal center is sandwiched between a... 

Lee C-H, Ng DKP (2002) Cerium promoted fotmation of meted-free phthalocyanines. Tetrahedron Lett 43 4211-4214... 

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