Reversible SC-SC Transformation involving [4+4] Cycloaddition of Anthracene: A Single-Ion to Single-Molecule Magnet and Yellow-Green to Blue-White Emission

被引：118
作者：
Huang, Xin-Da [1 ]
Xu, Yan [1 ]
Fan, Kun [1 ]
Bao, Song-Song [1 ]
Kurmoo, Mohamedally [2 ]
Zheng, Li-Min [1 ]
机构：
[1] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210023, Jiangsu, Peoples R China
[2] Univ Strasbourg, Inst Chim, CNRS UMR7177, 4 Rue Blaise Pascal, F-67007 Strasbourg, France
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 28期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
anthracene; dysprosium; photocycloaddition; single-molecule magnets; white light; 2-DIMENSIONAL POLYMER; LANTHANIDE; COMPLEXES; PHOTOCYCLOADDITION; PHOTODIMERIZATION; MAGNETIZATION; LUMINESCENCE; BEHAVIOR; PHOTOCHEMISTRY; PHOTOISOMER;
D O I：
10.1002/anie.201804102
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In search of magneto-optic materials, the mononuclear compounds Ln(III)(depma)(NO3)(3)(hmpa)(2) (Ln=Dy, Gd) were synthesized. The anthracene moieties undergo [4+4] dimerization when irradiated at 365nm without loss of crystallinity. The Dy compound switches from a single-ion to a single-molecule magnet with doubling of the spin reversal barrier energy and from yellow-green to blue-white emission. The dimerization is reversed by heating at 100 degrees C or partially on light irradiating at 254nm. The results suggest that lanthanide phosphonates with anthracene are promising smart materials displaying synergistic magneto-optic property.
引用
收藏
页码：8577 / 8581
页数：5
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