Predictable self-assembled [2 x 2] Ln(III)4 square grids (Ln = Dy,Tb)-SMM behaviour in a new lanthanide cluster motif

被引：152

作者：

Anwar, Muhammad Usman ^{[1
]}

Thompson, Laurence Kenneth ^{[1
]}

Dawe, Louise Nicole ^{[1
]}

Habib, Fatemah ^{[2
]}

Murugesu, Muralee ^{[2
]}

机构：

[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada

[2] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada

来源：

CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 38期

基金：

加拿大自然科学与工程研究理事会;

关键词：

SINGLE-MOLECULE-MAGNET; MAGNETOSTRUCTURAL CORRELATIONS; AZIDE BRIDGE; COMPLEXES; EXCHANGE; LIGANDS;

D O I：

10.1039/c2cc17546k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ditopic carbohydrazone ligand (L1) produces the square, self-assembled [2 x 2] grids [Dy-4(L1)(4)(OH)(4)]Cl-2 (1) and [Ln(4)(L1)(4)(mu(4)-O)(mu(2)-1,1-N-3)(4)] (Ln = Dy (2), Tb (3)), with 2 exhibiting SMM behaviour. Two relaxation processes occur with U-eff = 51 K, 91 K in the absence of an external field, and one with U-eff = 270 K in the presence of a 1600 Oe optimum field.

引用

页码：4576 / 4578

页数：3

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