Synthesis and single-molecule magnet properties of a trimetallic dysprosium metallocene cation
He, Mian; Guo, Fu-Sheng; Tang, Jinkui; Mansikkamäki, Akseli; Layfield, Richard A. (2021-05-28)
He, Mian
Guo, Fu-Sheng
Tang, Jinkui
Mansikkamäki, Akseli
Layfield, Richard A.
Royal Society of Chemistry
28.05.2021
Chem. Commun., 2021,57, 6396, https://doi.org/10.1039/D1CC02139G
https://creativecommons.org/licenses/by/3.0/
© 2021 The Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported License.
https://creativecommons.org/licenses/by/3.0/
© 2021 The Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported License.
https://creativecommons.org/licenses/by/3.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2021072741756
https://urn.fi/URN:NBN:fi-fe2021072741756
Tiivistelmä
Abstract
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.
Kokoelmat
- Avoin saatavuus [31988]