Supramolecular Coordination Complexes: Synthesis and Applications

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Coordination Chemistry".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 3551

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Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, c/Martí i Franquès 1-11, 08028 Barcelona, Spain
Interests: synthesis; NMR spectroscopy; coordination chemistry; nuclear magnetic resonance
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Dear Colleagues,

Coordination supramolecular chemistry has evolved to a stage whereby a large number of well-defined structures have been prepared through the establishment of metal–ligand interactions between small buildings blocks. In recent decades, an increasing number of combinations between acceptor metal compounds and organic or metallo-organic donor fragments have been used as building blocks, thus allowing the obtention of a huge variety of supramolecular architectures and assemblies. One of the most attractive features of this kind of compounds is the suitability for a great variety of applications. On one hand, the use of building blocks with specific functionalities can produce species with the desired properties. On the other hand, the formation of supramolecular entities can give rise to compounds with new properties that can be used in a wide range of potential applications, such as catalysis, sensoring, or switching devices, among others.

In this Special Issue, we wish to cover the most recent advances in the synthesis and applications of supramolecular coordination compounds (SCCs). This will also contribute to the discovery of new strategies and collaborations among researchers in the field.

Dr. Montserrat Ferrer
Guest Editor

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Keywords

  • ligand design and synthesis
  • supramolecular chemistry
  • organometallic chemistry
  • self-assembly
  • noncovalent interactions
  • coordination compound/complex

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Published Papers (2 papers)

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Research

19 pages, 1885 KiB  
Article
The Legacy of AAZTA—Synthesis and Coordination Chemistry of Two AAZTA Structural Analogs
by Federico Forgione, Madalina Ranga, Fabio Travagin, Mariangela Boccalon, Zsolt Baranyai, Giovanni B. Giovenzana and Luciano Lattuada
Inorganics 2024, 12(9), 235; https://doi.org/10.3390/inorganics12090235 - 29 Aug 2024
Viewed by 977
Abstract
AAZTA (6-amino-6-methylperhydro-1,4-diazepinetetraacetic acid) is a mesocyclic chelating agent forming stable complexes with several metal ions. Over the past 20 years since its inception, AAZTA and its bifunctional derivatives have gained a growing role in several applications ranging from MRI contrast agents to diagnostics [...] Read more.
AAZTA (6-amino-6-methylperhydro-1,4-diazepinetetraacetic acid) is a mesocyclic chelating agent forming stable complexes with several metal ions. Over the past 20 years since its inception, AAZTA and its bifunctional derivatives have gained a growing role in several applications ranging from MRI contrast agents to diagnostics and nuclear medicine. The recent market restrictions applied to nitroethane preclude the easy preparation of AAZTA, prompting the search for a suitable alternative. In this work, we report the synthesis of two structural analogs (AAZTA-Bn and AAZTA-Et) from commercially available chemicals and the thermodynamic and kinetic study of their complexing ability towards selected metal ions. A comparison of the complexing properties of AAZTA-Bn and AAZTA-Et with the former AAZTA allows us to identify the possible heir of this efficient chelating agent. Full article
(This article belongs to the Special Issue Supramolecular Coordination Complexes: Synthesis and Applications)
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9 pages, 2631 KiB  
Article
Luminescent Cadmium(II)-Based 12-MC-4 Metallacrown Complex with 2-Methylmercaptobenzohydroxamic Acid Ligand
by Sriram Sundaresan, Christoph Gamer, Mortiz J. Förster, Luca M. Carrella and Eva Rentschler
Inorganics 2023, 11(9), 362; https://doi.org/10.3390/inorganics11090362 - 5 Sep 2023
Viewed by 1678
Abstract
We reported herein the synthesis, structure determination and emission properties of a cubic molecular Cd(II) coordination cluster whose faces are composed of 12-MC-4 metallacrown units built up from Cd2+ and 2-methylmercaptobenzohydroxamic acid (LmmbHA), resulting in [CdII14( [...] Read more.
We reported herein the synthesis, structure determination and emission properties of a cubic molecular Cd(II) coordination cluster whose faces are composed of 12-MC-4 metallacrown units built up from Cd2+ and 2-methylmercaptobenzohydroxamic acid (LmmbHA), resulting in [CdII14(LmmbHA)126−O)(DMF)10](ClO4)2·3H2O. The polynuclear complex obtained was characterised by single crystal X-ray diffraction at 193 K. The bulk sample was also analysed by elemental analysis. UV-Vis and emission spectra of the complex were measured in chloroform, as well as the emission spectra of the ligand for comparison. The results of the emission studies revealed that both the ligand and the complex are weakly emissive. Full article
(This article belongs to the Special Issue Supramolecular Coordination Complexes: Synthesis and Applications)
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