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Diphthalocyaninatolanthanum as a New Phthalocyaninato‐Dianion Donor for the Synthesis of Heteroleptic Triple‐Decker Rare Earth Element Crown‐Phthalocyaninato Complexes
Author(s) -
Martynov Alexander G.,
Zubareva Olga V.,
Gorbunova Yulia G.,
Sakharov Sergey G.,
Nefedov Sergey E.,
Dolgushin Fedor M.,
Tsivadze Aslan Yu.
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700489
Subject(s) - chemistry , supramolecular chemistry , phthalocyanine , crystallography , rare earth , stereochemistry , crystal structure , organic chemistry , mineralogy
A novel synthetic approach towards heteroleptic triple‐decker crown‐phthalocyaninato complexes [(15C5) 4 Pc]M[(15C5) 4 Pc]M(Pc) and (Pc)M[(15C5) 4 Pc]M(Pc) [where (15C5) 4 Pc 2– = 2,3,9,10,16,17,24,25‐tetrakis(15‐crown‐5)phthalocyaninato dianion; Pc 2– = phthalocyaninato dianion; M = Sm, Tb, Dy, Tm and Y] has been developed. It utilises the application of diphthalocyaninatolanthanum, La(Pc) 2 , as a new source of the phthalocyaninato dianion instead of well known Li 2 (Pc). In contrast to the highly hygroscopic Li 2 (Pc), La(Pc) 2 is quite air‐stable and its use allowed a significant decrease in reaction times. All the synthesised complexes were characterised by UV/Vis and 1 H NMR spectroscopy as well as MALDI TOF mass spectrometry. The X‐ray structure of heteroleptic triple‐decker crown‐phthalocyaninato (Pc)Sm[(15C5) 4 Pc]Sm(Pc) was determined. These new heteroleptic phthalocyaninato complexes are interesting because of their potential as components in new supramolecular materials. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)