Special Issue "Single-Molecule Magnets"

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

Deadline for manuscript submissions: closed (30 November 2017)

Special Issue Editors

Guest Editor
Dr. Liviu Ungur

Theory of Nanomaterials Group and INPAC − Institute of Nanoscale Physics and Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
Website | E-Mail
Interests: electronic structure theory; ab initio calculations; crystal and ligand field models; exchange and magnetic interactions; lanthanides; transition metals; single molecule magnets; toroidal magnetic states; magnetic relaxation
Guest Editor
Prof. Dr. Marius Andruh

Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie 23, 020464-Bucharest, Romania
E-Mail
Phone: +40-744 8706563
Fax: +40-21-3159249
Interests: molecular magnetism; crystal engineering; metallosupramolecular chemistry
Guest Editor
Prof. Dr. Liviu F. Chibotaru

Theory of Nanomaterials Group, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
Website | E-Mail
Phone: +32 16 327424
Fax: +32 16 327992
Interests: molecular magnetism; magnetic anisotropy; quantum chemistry calculations; single-molecule magnets

Special Issue Information

Dear Colleagues,

Molecular magnets have been attracting increasing attention in recent years, from both experimental and theoretical perspectives. In recent years, we have witnessed significant progress in all aspects of this research area: Top level synthesis, allowing the fine tuning of the crystal field of lanthanide and transition metal compounds, accurate measurements, theoretical routes for obtaining more efficient magnets, joint efforts to solve the complicated problem of magnetic relaxation, etc. These joint efforts allowed for novel molecular magnets, displaying hysteresis at higher temperatures and significantly larger blocking barriers, for temperature-activated relaxation. However, magnetic performance of the current top-performing, single-molecular magnets is preventing their practical application in the field of information storage.The purpose of this Special Issue is to cover latest research in this field from both experimental as well as theoretical sides: Novel synthetic routes and compounds, innovative measurement techniques, as well as theoretical studies unravelling important factors, such as magnetic anisotropy, crystal field splitting, magnetic relaxation, structure–property relationships, etc. Perspectives on using existing and novel molecular magnets in neighboring research domains (quantum computing, luminescent materials, etc.) are highly welcome. 

Dr. Liviu Ungur
Prof. Dr. Marius Andruh
Prof. Dr. Liviu F. Chibotaru
Guest Editors

Manuscript Submission Information

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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. Inorganics is an international peer-reviewed open access quarterly 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 350 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

  • transition metal and lanthanide chemistry
  • slow magnetic relaxation
  • magnetic anisotropy
  • exchange interaction
  • crystal (ligand) field theory
  • magnetic properties
  • ab initio calculations
  • magnetic relaxation
  • luminescence
  • metal-radical chemistry and magnetism

Published Papers (1 paper)

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Research

Open AccessFeature PaperArticle Field-Induced Single-Ion Magnet Behaviour in Two New Cobalt(II) Coordination Polymers with 2,4,6-Tris(4-pyridyl)-1,3,5-triazine
Inorganics 2017, 5(4), 90; doi:10.3390/inorganics5040090 (registering DOI)
Received: 28 November 2017 / Revised: 10 December 2017 / Accepted: 11 December 2017 / Published: 15 December 2017
PDF Full-text (4945 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
We herein reported the syntheses, crystal structures, and magnetic properties of a two-dimensional coordination polymer {[CoII(TPT)2/3(H2O)4][CH3COO]2·(H2O)4}n (1) and a chain compound {[CoII(TPT)
[...] Read more.
We herein reported the syntheses, crystal structures, and magnetic properties of a two-dimensional coordination polymer {[CoII(TPT)2/3(H2O)4][CH3COO]2·(H2O)4}n (1) and a chain compound {[CoII(TPT)2(CHOO)2(H2O)2]}n (2) based on the 2,4,6-Tris(4-pyridyl)-1,3,5-triazine (TPT) ligand. Structure analyses showed that complex 1 had a cationic hexagonal framework structure, while 2 was a neutral zig-zag chain structure with different distorted octahedral coordination environments. Magnetic measurements revealed that both complexes exhibit large easy-plane magnetic anisotropy with the zero-field splitting parameter D = 47.7 and 62.1 cm−1 for 1 and 2, respectively. This magnetic anisotropy leads to the field-induced slow magnetic relaxation behaviour. However, their magnetic dynamics are quite different; while complex 1 experienced a dominating thermally activated Orbach relaxation at the whole measured temperature region, 2 exhibited multiple relaxation pathways involving direct, Raman, and quantum tunneling (QTM) processes at low temperatures and Orbach relaxation at high temperatures. The present complexes enlarge the family of framework-based single-ion magnets (SIMs) and highlight the significance of the structural dimensionality to the final magnetic properties. Full article
(This article belongs to the Special Issue Single-Molecule Magnets)
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