Novel one-pot regioselective route towards heteroleptic lanthanide (phthalocyaninato)(porphyrinato) triple-decker complexes

作者：Birin Kirill P; Gorbunova Yulia G^*; Tsivadze Asian Yu

来源：Journal of Porphyrins and Phthalocyanines, 2009, 13(2): 283-290.

DOI：10.1142/s1088424609000358

• porphyrin
• phthalocyanine
• lanthanide
• heteroleptic
• NMR
• quantum calculations
• double-decker
• triple-decker

A novel one-pot method for the regioselective preparation of early heteroleptic lanthanide (porphyrinato)(phthalocyaninato) complexes of double- and triple-decker structure [(Por)Ln(Pc) and (Por)Ln(Pc)Ln(Por), respectively] is developed. Sandwich-type complexes are synthesized for La, Ce and Pr following this procedure, with yields up to 30%. Tetrakis(15-crown-5)-phthalocyanine [(15C5)(4)PcH(2)] and tetrakis-meso-(4-methoxyphenyl)-porphyrin (An(4)PH(2)) are used as macrocyclic tetrapyrrolic ligands. The complexes are widely characterized with various physico-chemical methods (NMR and UV-vis spectroscopy, MALDI-TOF mass spectrometry). Quantum chemistry calculations for intermediates of the process are performed. The results of calculations explain the high regioselectivity of the triple-decker complex formation in the developed method.

• 出版日期2009-2