Spectrophotometric study of the cation-induced dimerization of heteroleptic terbium(III) tetra-15-crown-5-bisphthalocyaninate
- Authors: Martynov A.G.1, Bykov A.V.2, Gorbunova Y.G.1,3, Tsivadze A.Y.1,3
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Affiliations:
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Department of Chemistry, Lomonosov Moscow State University
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Issue: Vol 67, No 12 (2018)
- Pages: 2195-2200
- Section: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/243216
- DOI: https://doi.org/10.1007/s11172-018-2355-5
- ID: 243216
Cite item
Abstract
We proposed a new approach to the synthesis of heteroleptic crown-substituted terbium(III) bisphthalocyaninate, [(15C5)4Pc]Tb(Pc) (1) based on the reaction of unsubstituted lanthanum bisphthalocyaninate (La(Pc)2) with tetra-15-crown-5-phthalocyanine (H2[(15C5)4Pc]) and terbium(III) acetate in a mixture of octanol and chloronaphthalene in the presence of 1,8-diazabicyclo[ 5.4.0]undec-7-ene as an organic base. For the first time, we carried out a comparative spectrophotometric titration of compound 1 with MBPh4 solutions (M = K, Rb, Cs) and demonstrated the formation of isostructural cofacial supramolecular dimers. Spectral-structural correlations were developed for evaluation of the distances between phthalocyanine ligands in new supramolecular assemblies, which can be used for the development of polynuclear suprasingle-molecule magnetic materials.
About the authors
A. G. Martynov
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Author for correspondence.
Email: Martynov.Alexandre@gmail.com
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119991
A. V. Bykov
Department of Chemistry, Lomonosov Moscow State University
Email: Martynov.Alexandre@gmail.com
Russian Federation, Build. 3, 1 Leninskie Gory, Moscow, 119991
Yu. G. Gorbunova
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences; N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: Martynov.Alexandre@gmail.com
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119991; 31 Leninsky prosp., Moscow, 119991
A. Yu. Tsivadze
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences; N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: Martynov.Alexandre@gmail.com
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119991; 31 Leninsky prosp., Moscow, 119991