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Special Issue Information

Dear Colleagues,

We are delighted to announce the launch of the fourth edition of this Special Issue dedicated to the synthesis, functionalization, and application of macrocycles based on pyrrolic units. In this Special Issue, we enthusiastically anticipate contributions that delve into the synthesis and functionalization of both natural and synthetic macrocycles, including porphyrins, corroles, and phthalocyanines, as well as their analogues like sapphyrins, heteroporphyrins, and expanded (hetero)porphyrins and their precursors.

Furthermore, we envision this Special Issue as a forum for exploring the vast potential that these macrocycles and their precursors hold across different fields, such as through catalysis, sensing, medicine, materials science, and the development of advanced biomimetic models. We invite researchers from all corners of the scientific community to join us in exploring the exciting possibilities offered by these intriguing compounds.

Prof. Dr. Maria G. P. M. S. Neves
Prof. Dr. M. Amparo F. Faustino
Dr. Nuno M. M. Moura
Guest Editors

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Related Special Issue

Published Papers (1 paper)

Research

18 pages, 8605 KiB

Open AccessArticle

Magnetic Anisotropy of Homo- and Heteronuclear Terbium(III) and Dysprosium(III) Trisphthalocyaninates Derived from Paramagnetic ¹H-NMR Investigation

by Ilya D. Kormschikov, Marina A. Polovkova, Gayane A. Kirakosyan, Alexander G. Martynov, Yulia G. Gorbunova and Aslan Yu. Tsivadze

Molecules 2024, 29(2), 510; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules29020510 - 19 Jan 2024

Viewed by 655

Abstract

¹H-NMR spectroscopy of lanthanide complexes is a powerful tool for deriving spectral–structural correlations, which provide a clear link between the symmetry of the coordination environment of paramagnetic metal centers and their magnetic properties. In this work, we have first synthesized a series of homo- (M = M* = Dy) and heteronuclear (M ≠ M* = Dy/Y and Dy/Tb) triple-decker complexes [(BuO)₈Pc]M[(BuO)₈Pc]M*[(15C5)₄Pc], where BuO- and 15C5- are, respectively, butoxy and 15-crown-5 substituents on phthalocyanine (Pc) ligands. We provide an algorithmic approach to assigning the ¹H-NMR spectra of these complexes and extracting the axial component of the magnetic susceptibility tensor,

χ_{a x}

. We show how this term is related to the nature of the lanthanide ion and the shape of its coordination polyhedron, providing an experimental basis for further theoretical interpretation of the revealed correlations. Full article

(This article belongs to the Special Issue Tetrapyrrolic Macrocycles: Synthesis, Functionalization and Applications, Volume IV)

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