Springer Verlag, Russian Chemical Bulletin, 11(60), p. 2258-2262
DOI: 10.1007/s11172-011-0345-y
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A novel approach to heteroleptic heteronuclear rare earth metal(III) trisphthalocyaninates was proposed with the complexes [(15C5)(4)Pc]M*[(15C5)(4)Pc]M(Pc) as examples (15C5 is 15-crown-5, Pc2- is the phthalocyaninate dianion, and M* not equal M = Yb and Y). Unsubstituted lanthanum bisphthalocyaninate, La(Pc)(2), was used for the first time as a Pc2- donor in the synthesis of such complexes. This substantially increased the yields of the target heteronuclear complexes over the previous literature data.