University of Oulu

Chem. Commun., 2021,57, 6396,

Synthesis and single-molecule magnet properties of a trimetallic dysprosium metallocene cation

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Author: He, Mian1; Guo, Fu-Sheng1; Tang, Jinkui2;
Organizations: 1Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, UK
2Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5626, Changchun 130022, China
3NMR Research Unit, University of Oulu, P.O. Box 8000, FI-90014, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.5 MB)
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Language: English
Published: Royal Society of Chemistry, 2021
Publish Date: 2021-07-27


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.

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Series: Chemical communications
ISSN: 1359-7345
ISSN-E: 1364-548X
ISSN-L: 1359-7345
Volume: 57
Issue: 52
Pages: 6396 - 6399
DOI: 10.1039/D1CC02139G
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
116 Chemical sciences
Funding: We thank the University of Sussex, the ERC (CoG 646740), the EPSRC (EP/M022064/1), the Academy of Finland (project 332294) the National Natural Science Foundation of China (21525103, 21871247) and the University of Oulu (Kvantum Institute). Computational resources were provided by CSC-IT Center for Science in Finland and the Finnish Grid and Cloud Infrastructure (persistent identifier urn:nbn:fi:research-infras-2016072533). J. T. and R. A. L. thank the Royal Society for a Newton Advanced Fellowship (NA160075).
Academy of Finland Grant Number: 332294
Detailed Information: 332294 (Academy of Finland Funding decision)
Copyright information: © 2021 The Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported License.