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Bromine-bridged Dy2 single-molecule magnet: magnetic anisotropy driven by cis/trans stereoisomers.

Authors :
Li, Min
Wu, Haipeng
Xia, Zhengqiang
Montigaud, Vincent
Cador, Olivier
Le Guennic, Boris
Ke, Hongshan
Wang, Wenyuan
Xie, Gang
Chen, Sanping
Source :
Chemical Communications; 12/18/2019, Vol. 55 Issue 97, p14661-14664, 4p
Publication Year :
2019

Abstract

We report the first bromine-bridged dinuclear [Dy(Cy<subscript>3</subscript>PO)<subscript>2</subscript>(μ-Br)(Br)<subscript>2</subscript>]<subscript>2</subscript>·2C<subscript>7</subscript>H<subscript>8</subscript> single-molecule magnet with an effective energy barrier of 684 K and magnetic hysteresis below 3 K. The asymmetric Dy<superscript>III</superscript> centres present two unique stereoisomeric octahedral coordination environments depending on the cis/trans disposition of the Cy<subscript>3</subscript>PO ligands, leading to the orthogonality of the easy magnetic axes that annihilates the dipolar interactions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13597345
Volume :
55
Issue :
97
Database :
Complementary Index
Journal :
Chemical Communications
Publication Type :
Academic Journal
Accession number :
140064963
Full Text :
https://doi.org/10.1039/c9cc07552f