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Crystals
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Synthesis and Characterization of Molecular Magnetic Materials Based on Coordination...
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Synthesis and Characterization of Molecular Magnetic Materials Based on Coordination Chemistry

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (30 July 2021) | Viewed by 5865

Special Issue Editors

Dr. Dimitris I. Alexandropoulos

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Guest Editor
Department of Materials, Oxford University, Oxford OX2 7LU, UK
Interests: coordination chemistry; molecular magnetism; materials science
Dr. Kuduva R. Vignesh

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Guest Editor
Department of Chemistry, IIT Bombay, Powai, Mumbai 400076, India
Interests: coordination chemistry; computational chemistry; molecular magnetism
Dr. Despina Dermitzaki

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Guest Editor
Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos” (NCSR “Demokritos”), Patr. Gregoriou E & 27 Neapoleos Str, 15341 Agia Paraskevi, Greece
Interests: coordination chemistry; molecular magnetic materials; chiral complexes; X-Ray crystallography

Special Issue Information

Dear Colleagues,

The field of Molecular Magnetism was introduced in the early 1980s as a multidisciplinary area of study associated with the magnetic properties of discrete molecules. Coordination chemistry played a crucial role in the evolution of the field since synthetic chemists were able to provide a wide variety of model systems spanning from monometallic and oligonuclear metal complexes to extended structures of multiple dimensionalities. The study of these systems revealed the presence of novel magnetic phenomena and allowed a deeper understanding of the magnetic properties at a molecular level via magneto-structural correlations and theoretical modeling. For example, the observation of magnetic hysteresis in a discrete manganese cluster, Mn12OAc, paved the way for developing a new area of research called single-molecule magnets (SMMs). SMMs are species that can exhibit slow magnetic relaxation, below a characteristic blocking temperature (TB), due to a molecular origin. Thus, SMMs can exhibit the properties of bulk magnets such as SmCo5 but at the molecular level and, more importantly, they could show quantum features and find technological applications in quantum computing, spintronics, and high-density memory storage devices. Synthetic efforts in this field have produced a large number of SMMs based on transition metals and/or lanthanide ions with blocking temperatures approaching liquid nitrogen temperature. This Special Issue on “Synthesis and Characterization of Molecular Magnetic Materials based on Coordination Chemistry” should become a timely status report summarizing progress in recent years.

Dr. Dimitris I. Alexandropoulos
Dr. Kuduva R. Vignesh
Dr. Despina Dermitzaki
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Coordination chemistry
  • Molecular magnetism
  • Computational chemistry
  • Materials science
  • X-ray crystallography
  • Transition metals
  • Lanthanides

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Published Papers (2 papers)

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Research

15 pages, 3599 KiB  
Article
Synthesis, Crystal Structures and Magnetic Properties of Trinuclear {Ni2Ln} (LnIII = Dy, Ho) and {Ni2Y} Complexes with Schiff Base Ligands
by Despina Dermitzaki, Angeliki Panagiotopoulou, Michael Pissas, Yiannis Sanakis, Vassilis Psycharis and Catherine P. Raptopoulou
Crystals 2022, 12(1), 95; https://doi.org/10.3390/cryst12010095 - 11 Jan 2022
Cited by 5 | Viewed by 2020
Abstract
The reaction of the Schiff base ligand o-OH-C6H4-CH=N-C(CH2OH)3, H4L, with Ni(O2CMe)2∙4H2O and lanthanide nitrate salts in a 4:2:1 ratio lead to the formation of the trinuclear complexes [...] Read more.
The reaction of the Schiff base ligand o-OH-C6H4-CH=N-C(CH2OH)3, H4L, with Ni(O2CMe)2∙4H2O and lanthanide nitrate salts in a 4:2:1 ratio lead to the formation of the trinuclear complexes [Ni2Ln(H3L)4(O2CMe)2](NO3) (Ln = Dy (1), Ho (2), and Y (3)) which crystallize in the non-centrosymmetric space group Pna21. The complex cation consists of the three metal ions in an almost linear arrangement. The {Ni2Ln} moieties are bridged through two deprotonated Ophenolato groups from two different ligands. Each terminal NiII ion is bound to two ligands through their Ophenolato, the Nimino atoms and one of the protonated Oalkoxo groups in a distorted octahedral. The central lanthanide ion is coordinated to four Ophenolato oxygen from the four ligands, and four Ocarboxylato atoms from two acetates which are bound in the bidentate chelate mode, and the coordination polyhedron is biaugmented trigonal prism, which probably results in a non-centrosymmetric arrangement of the complexes in the lattice. The magnetic properties of 1–3 were studied and showed that 1 exhibits field induced slow magnetic relaxation. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Molecular Magnetic Materials Based on Coordination Chemistry)
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9 pages, 3564 KiB  
Article
The Use of Hirshfeld Surface Analysis Tools to Study the Intermolecular Interactions in Single Molecule Magnets
by Vassilis Psycharis, Despina Dermitzaki and Catherine P. Raptopoulou
Crystals 2021, 11(10), 1246; https://doi.org/10.3390/cryst11101246 - 14 Oct 2021
Cited by 9 | Viewed by 3353
Abstract
Intermolecular interactions have proved to play an important role in properties of SMMs such as quantum tunneling of magnetization (QTM), and they also reduce the rate of magnetic relaxation, as through the influence they have on QTM, they quicken the reverse of magnetization. [...] Read more.
Intermolecular interactions have proved to play an important role in properties of SMMs such as quantum tunneling of magnetization (QTM), and they also reduce the rate of magnetic relaxation, as through the influence they have on QTM, they quicken the reverse of magnetization. In addition, they are considered as the generative cause of the exchange-biased phenomenon. Using the Hirshfeld analysis tools, all the intermolecular interactions of a molecule and its neighbors are revealed, and this leads to a systematic study of the observed interactions, which could probably be helpful in other studies, such as theoretical calculations. In addition, they could be helpful to design new systems because intermolecular interactions in SMMs have been proposed as a probable tool to monitor their properties. The observation of characteristic patterns on the Hirshfeld Surfaces (HS) decorated with different properties makes easier the recognition of possible structural pathways for the different types of interactions of a molecule with its surrounding. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Molecular Magnetic Materials Based on Coordination Chemistry)
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