Synthesis and single-molecule magnet properties of a trimetallic dysprosium metallocene cation.
Journal
Chemical communications (Cambridge, England)
ISSN: 1364-548X
Titre abrégé: Chem Commun (Camb)
Pays: England
ID NLM: 9610838
Informations de publication
Date de publication:
29 Jun 2021
29 Jun 2021
Historique:
pubmed:
5
6
2021
medline:
5
6
2021
entrez:
4
6
2021
Statut:
ppublish
Résumé
The dimetallic fulvalene-bridged dysprosium complex [{Dy(Cp*)(μ-BH4)}2(Fvtttt)] (1, Cp* = C5Me5) is converted into the trimetallic borohydride-bridged species [{Dy(Cp*)(Fvtttt)}2Dy(μ-BH4)3] (2). In turn, 2 is reacted with a silylium electrophile to give [{Dy(Cp*)(μ-BH4)(Fvtttt)}2Dy][B(C6F5)4] ([3][B(C6F5)3]), the first trimetallic dysprosocenium cation. Compound [3][B(C6F5)3] can also be formed directly from 1 by adding two equivalents of the electrophile. A three-fold enhancement in the effective energy barrier from 2 to 3 is observed and interpreted with the aid of ab initio calculations.
Identifiants
pubmed: 34085074
doi: 10.1039/d1cc02139g
pmc: PMC8240697
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
6396-6399Références
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