Triggering of Valence Tautomeric Transitions in Dioxolene-Based Cobalt Complexes Influenced by Ligand Substituents, Co-ligands, and Anions

Publication type:
Journal article
Metadata:
Autoren
  • Sriram Sundaresan
  • Marcel Diehl
  • Luca M Carrella
  • Eva Rentschler
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000856912000001&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.3390/magnetochemistry8090109
eISSN
2312-7481
Externe Identifier
  • Clarivate Analytics Document Solution ID: 4R7AM
Ausgabe der Veröffentlichung
9
Zeitschrift
MAGNETOCHEMISTRY
Schlüsselwörter
  • Valence-Tautomer
  • cobalt
  • di-nuclear
  • di-oxolene
Artikelnummer
ARTN 109
Datum der Veröffentlichung
2022
Status
Published
Titel
Triggering of Valence Tautomeric Transitions in Dioxolene-Based Cobalt Complexes Influenced by Ligand Substituents, Co-ligands, and Anions
Sub types
  • Article
Ausgabe der Zeitschrift
8

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:p>We report the multistep synthesis of the 1,1′-(piperazine-1,4-diyl)bis(N,N-bis(pyridin-2-ylmethyl)methanamine)(Ltpbap) octadentate ligand, which, in combination with the known 3,5-di-tert-butylcatechol (3,5-dbcat), allowed the preparation of two di-nuclear cobalt complexes [Co2(Ltpbap)(3,5-dbcat)2](SO4)·5.5MeOH·2H2O (3a) and [Co2(Ltpbap)(3,5-dbcat)2 ](ClO4)2·1.5H2O (3b). We also report the synthesis of two mono-nuclear cobalt complexes [Co(3,5-dbsq)(3,5-dbcat)(4-Mepip)2] (1) with 4-Mepip being 4-methylpiperidine and (Hpip)[Co(tbcat)2(pip)2]·CH3CN (2) where Hpip denotes a piperidinium cation and tbcat is the tetra-bromocatechol ligand. The obtained complexes were characterized by single-crystal X-ray crystallography, SQUID magnetometry, and IR spectroscopy. The structure of the crystalline material in all the cases was determined at 173 K. The magnetic properties of all complexes were measured between 2 and 380 K. The magnetic data clearly show that mono-nuclear complex 1 and di-nuclear complex 3a exhibit valence tautomerism with onset around 300 K and 370 K, respectively, whereas the other two complexes 2 and 3b remain unchanged over the measured temperature range.</jats:p>
Autoren
  • Sriram Sundaresan
  • Marcel Diehl
  • Luca M Carrella
  • Eva Rentschler
DOI
10.3390/magnetochemistry8090109
eISSN
2312-7481
Ausgabe der Veröffentlichung
9
Zeitschrift
Magnetochemistry
Sprache
en
Online publication date
2022
Paginierung
109 - 109
Status
Published online
Herausgeber
MDPI AG
Herausgeber URL
http://dx.doi.org/10.3390/magnetochemistry8090109
Datum der Datenerfassung
2023
Titel
Triggering of Valence Tautomeric Transitions in Dioxolene-Based Cobalt Complexes Influenced by Ligand Substituents, Co-ligands, and Anions
Ausgabe der Zeitschrift
8

Data source: Crossref

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