Magnetic Molecular Rectangles Constructed from Functionalized Nitronyl-Nitroxide Ligands and Lanthanide(III) Ions

Publication type:
Journal article
Metadata:
Autoren
  • Sergiu Calancea
  • Luca Carrella
  • Teodora Mocanu
  • Vladimir Sadohin
  • Mihai Raduca
  • Iacob Gutu
  • Julio C da Rocha
  • Maria GF Vaz
  • Eva Rentschler
  • Marius Andruh
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000603166100001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/ejic.202000954
eISSN
1099-0682
Externe Identifier
  • Clarivate Analytics Document Solution ID: QG0MR
ISSN
1434-1948
Ausgabe der Veröffentlichung
6
Zeitschrift
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Schlüsselwörter
  • Nitronyl-nitroxide ligands
  • Lanthanides complexes
  • Magnetic properties
  • Metallarectangles
Paginierung
567 - 577
Datum der Veröffentlichung
2021
Status
Published
Titel
Magnetic Molecular Rectangles Constructed from Functionalized Nitronyl-Nitroxide Ligands and Lanthanide(III) Ions
Sub types
  • Article
Ausgabe der Zeitschrift
2021

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>Five binuclear complexes with rectangular topology have been synthesized using a nitronyl‐nitroxide ligand (L) functionalized with a pyrazole coordinating group: [Ln<jats:sub>2</jats:sub>(hfac)<jats:sub>2</jats:sub>L<jats:sub>2</jats:sub>], with Ln=Eu (<jats:bold>1</jats:bold>), Gd (<jats:bold>2 a</jats:bold>, <jats:bold>2 b</jats:bold>), Tb (<jats:bold>3</jats:bold>), Dy (<jats:bold>4</jats:bold>), Tm (<jats:bold>5</jats:bold>). The Eu<jats:sup>III</jats:sup> and Tm<jats:sup>III</jats:sup> complexes crystallize in the <jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>/<jats:italic>n</jats:italic> space group, while the Gd<jats:sup>III</jats:sup>, Tb<jats:sup>III</jats:sup>, and Dy<jats:sup>III</jats:sup> derivatives crystalize in <jats:italic>P</jats:italic>‐1 space group. The crystal structures for compounds <jats:bold>2 a</jats:bold>, <jats:bold>3</jats:bold>, <jats:bold>4</jats:bold>, and <jats:bold>5</jats:bold> have been fully solved, while for compounds <jats:bold>1</jats:bold> and <jats:bold>2 b</jats:bold>, the unit cell parameters have been measured and compared with crystals <jats:bold>3</jats:bold> and <jats:bold>5</jats:bold>. Crystals <jats:bold>2 a</jats:bold> (<jats:italic>P</jats:italic>2<jats:sub>1</jats:sub>/<jats:italic>n</jats:italic>) and <jats:bold>2 b</jats:bold> (<jats:italic>P</jats:italic>‐1) are polymorphic forms. In these complexes the nitronyl‐nitroxide ligand bridges two metal ions through one aminoxyl group and the pyrazole fragment. In the five complexes the Ln<jats:sup>III</jats:sup> ions show a coordination number of eight with a triangular dodecahedron geometry. The magnetic properties of all five complexes have been investigated. For compounds <jats:bold>2</jats:bold>, <jats:bold>3</jats:bold>, and <jats:bold>4</jats:bold> the Ln<jats:sup>III</jats:sup>‐Rad interaction was found to be ferromagnetic: <jats:italic>J</jats:italic><jats:sub>GdRad</jats:sub>=2.09(1) cm<jats:sup>−1</jats:sup> [<jats:italic><jats:bold>H</jats:bold></jats:italic>=‐2<jats:italic>J</jats:italic><jats:sub>GdRad</jats:sub>(<jats:italic><jats:bold>S</jats:bold></jats:italic><jats:sub>Gd1</jats:sub><jats:italic><jats:bold>S</jats:bold></jats:italic><jats:sub>Rad1</jats:sub>+<jats:italic><jats:bold>S</jats:bold></jats:italic><jats:sub>Gd2</jats:sub><jats:italic><jats:bold>S</jats:bold></jats:italic><jats:sub>Rad2</jats:sub>], <jats:italic>J</jats:italic><jats:sub>TbRad</jats:sub>=1.93(14) cm<jats:sup>−1</jats:sup>, <jats:italic>J</jats:italic><jats:sub>DyRad</jats:sub>=1.72(14) cm<jats:sup>−1</jats:sup>. The Tm<jats:sup>III</jats:sup>‐Rad coupling is antiferromagnetic (<jats:italic>J</jats:italic><jats:sub>TmRad</jats:sub>=−0.53(1) cm<jats:sup>−1</jats:sup>). For the Tb<jats:sup>III</jats:sup>, Dy<jats:sup>III</jats:sup>, and Tm<jats:sup>III</jats:sup> complexes the effects of the crystal field have been taken into account in the fitting procedure.</jats:p>
Autoren
  • Sergiu Calancea
  • Luca Carrella
  • Teodora Mocanu
  • Vladimir Sadohin
  • Mihai Raduca
  • Iacob Gutu
  • Julio C da Rocha
  • Maria GF Vaz
  • Eva Rentschler
  • Marius Andruh
DOI
10.1002/ejic.202000954
eISSN
1099-0682
ISSN
1434-1948
Ausgabe der Veröffentlichung
6
Zeitschrift
European Journal of Inorganic Chemistry
Sprache
en
Online publication date
2020
Paginierung
567 - 577
Datum der Veröffentlichung
2021
Status
Published
Herausgeber
Wiley
Herausgeber URL
http://dx.doi.org/10.1002/ejic.202000954
Datum der Datenerfassung
2023
Titel
Magnetic Molecular Rectangles Constructed from Functionalized Nitronyl‐Nitroxide Ligands and Lanthanide(III) Ions
Ausgabe der Zeitschrift
2021

Data source: Crossref

Author's licence
CC-BY-NC-ND
Autoren
  • Sergiu Calancea
  • Luca Carrella
  • Teodora Mocanu
  • Vladimir Sadohin
  • Mihai Raduca
  • Iacob Gutu
  • Julio da Rocha
  • Maria GF Vaz
  • Eva Rentschler
  • Marius Andruh
Hosting institution
Universitätsbibliothek Mainz
Sammlungen
  • JGU-Publikationen
Resource version
Published version
DOI
10.1002/ejic.202000954
File(s) embargoed
false
Open access
true
ISSN
1099-0682
Ausgabe der Veröffentlichung
6
Zeitschrift
European journal of inorganic chemistry
Schlüsselwörter
  • 540 Chemie
  • 540 Chemistry and allied sciences
Sprache
eng
Open access status
Open Access
Paginierung
567 - 577
Datum der Veröffentlichung
2021
Public URL
https://openscience.ub.uni-mainz.de/handle/20.500.12030/6915
Herausgeber
Wiley-VCH
Datum der Datenerfassung
2022
Datum, an dem der Datensatz öffentlich gemacht wurde
2022
Zugang
Public
Titel
Magnetic molecular rectangles constructed from functionalized nitronyl-nitroxide ligands and lanthanide(III) ions
Ausgabe der Zeitschrift
2021

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