Two-step Relaxation in a Linear Tetranuclear Dysprosium(III) Aggregate Showing Single-molecule Magnet Behavior

Overview

Journal J Am Chem Soc

Publisher American Chemical Society

Specialty Chemistry

Date 2010 Jun 10

PMID 20527747

Citations 22

Authors

Yun-Nan Guo

Gong-Feng Xu

Patrick Gamez

Lang Zhao

Shuang-Yan Lin

Ruiping Deng

Jinkui Tang

Hong-Jie Zhang

Affiliations

Soon will be listed here.

Abstract

A well-defined two-step relaxation, described by the sum of two modified Debye functions, is observed in a new alkoxido-bridged linear tetranuclear Dy(III) aggregate showing single-molecule magnet behavior with a remarkably large energy barrier. This compound represents a model molecular aggregate with a clear two-step relaxation evidenced by frequency-dependent susceptibility, which therefore may stimulate further investigations regarding the relaxation dynamics of lanthanide-based systems.

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