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个人信息Personal Information
研究员
博士生导师
硕士生导师
性别：男
毕业院校：北京大学
学位：博士
所在单位：化工学院
学科：无机化学
办公地点：大连理工大学西部校区精细化工国家重点实验室F区208
联系方式：Tel：0411-84986261 email：mengys@dlut.edu.cn
电子邮箱：mengys@dlut.edu.cn
Low-Coordinate Single-Ion Magnets by Intercalation of Lanthanides into a Phenol Matrix.
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论文类型：期刊论文
发表时间：2018-01-01
发表刊物：Angewandte Chemie (International ed. in English)
收录刊物：PubMed、SCIE、EI
卷号：57
期号：17
页面范围：4673-4676
ISSN号：1521-3773
关键字：bulky ligands; lanthanide intercalation; magnetic anisotropy; single-ion magnets
摘要：It is very challenging to synthesize stable trivalent rare-earth complexes in which the coordination number is lower than 3 for the high oxidation state, there is a large ion radius and nearly non-bonding character of trivalent lanthanide ions. The bulky phenol ligand ArOH (Ar=2,6-Dipp2 C6 H3 , Dipp=2,6-diisopropylphenyl) was utilized to construct low-coordinate lanthanide compound [(ArO)Ln(OAr')] (Ar'=6-Dipp-2-(2'-i Pr-6'-CHMe(CH2- )C6 H3 )C6 H3 O- ; Ln=Tb, Dy, Ho, Er, Tm). These complexes and the free ligand ArOH were isostructural. Magnetic measurements and theoretical studies demonstrated that both the oblate-type dysprosium and prolate-type erbium analogues exhibited single-ion magnet (SIM) behavior. The bulky phenol ligands provided strong uniaxial ligand field, making the dysprosium SIM possessing blocking barrier up to 961 K. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.