Encapsulation of a [Dy(OH2)(8)](3+) cation: magneto-optical and theoretical studies of a caged, emissive SMM

The first supramolecular cage formed by three benzo-15-crown-5 macrocycles encapsulating a [Dy(OH2)(8)](3+) guest cation is reported, with the Dy(III) centre exhibiting local pseudo square antiprismatic D-4d symmetry. The anisotropy barrier extracted from ac susceptibility studies, emission spectros...

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Bibliographic Details
Main Author: Al Hareri, M. (author)
Other Authors: Gavey, E. L. (author), Regier, J. (author), Ali, Z. Ras (author), Carlos, L. D. (author), Ferreira, R. A. S. (author), Pilkington, M. (author)
Format: article
Language:eng
Published: 1000
Subjects:
SINGLE-MOLECULE MAGNETS
ION-MAGNET
DY-III
RELAXATION DYNAMICS
OPTICAL-PROPERTIES
SLOW RELAXATION
ZN-DY
COMPLEX
ANISOTROPY
SYMMETRY
Online Access:http://hdl.handle.net/10773/19664
Country:Portugal
Oai:oai:ria.ua.pt:10773/19664
Description
Summary:The first supramolecular cage formed by three benzo-15-crown-5 macrocycles encapsulating a [Dy(OH2)(8)](3+) guest cation is reported, with the Dy(III) centre exhibiting local pseudo square antiprismatic D-4d symmetry. The anisotropy barrier extracted from ac susceptibility studies, emission spectroscopy and ab initio calculations reveals that the second excited state Kramers doublet plays a key role in the magnetization dynamics due to the Ising character and near coparallel nature of the ground and first excited Kramers doublets.

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