Jump to main content
Jump to site search


Equatorial coordination optimization for enhanced axiality of mononuclear Dy(iii) single-molecule magnets

Author affiliations

Abstract

We present a controlled synthetic route to optimize the equatorial coordination environment of three Dy(III) borohydride complexes: Dy(BH4)3(THF)3 (1), [Dy(BH4)2(THF)5][BPh4] (2) and [Dy(BH4)2(18-C-6)][Na(THF)2(18-C-6)][BPh4]2 (3) (THF = tetrahydrofuran, BPh4 = tetraphenyl borate, 18-C-6 = 18-crown-6-ether), which have the same axial coordination environment, while different equatorial sites. Alteration of the coordination environment on the equatorial sites leads to a significant change in their magnetic properties. In the absence of the dc field, complex 1 with three THF molecules and one BH4 ligand in the equatorial plane shows no single-molecule magnet (SMM) behaviour, complex 2 having five THF molecules at equatorial sites displays small tails of out-of-phase (χ′′) signals, and complex 3 containing one 18-C-6 with six O atoms in the equatorial plane exhibits χ′′ signals at higher temperatures. These results show the optimization of the equatorial coordination environment of Dy(III) mononuclear single-molecule magnets.

Graphical abstract: Equatorial coordination optimization for enhanced axiality of mononuclear Dy(iii) single-molecule magnets

Back to tab navigation

Supplementary files

Article information


Submitted
02 Jan 2020
Accepted
04 Feb 2020
First published
04 Feb 2020

Dalton Trans., 2020, Advance Article
Article type
Paper

Equatorial coordination optimization for enhanced axiality of mononuclear Dy(III) single-molecule magnets

K. Yu, Y. Ding, Y. Zhai, T. Han and Y. Zheng, Dalton Trans., 2020, Advance Article , DOI: 10.1039/D0DT00011F

Social activity

Search articles by author

Spotlight

Advertisements