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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：化工学院院长、党委副书记
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. 应用化学. 精细化工
办公地点：大连理工大学西部校区F208
联系方式：0411-84986296 liutao@dlut.edu.cn https://liutao.dlut.edu.cn/
电子邮箱：liutao@dlut.edu.cn
Cyano-bridged Fe2Cu clusters: Control of magnetic properties through cis-trans arrangement
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论文类型：期刊论文
发表时间：2014-10-01
发表刊物：INORGANIC CHEMISTRY COMMUNICATIONS
收录刊物：SCIE
卷号：48
页面范围：8-11
ISSN号：1387-7003
关键字：Cyano; Trinuclear; Ferromagnetic; Antiferromagnetic; Cis-trans
摘要：It remains a challenge to control the magnetic properties of molecule-based magnetic materials through chemical modification. Utilizing two tricyanometalate precursors with different steric hindrance, the cis-trans arrangement can be tuned in cyano-bridged {Fe2Cu} trinuclear complexes. The cis trinuclear [Fe-III(Tp)(CN)(3)](2)Cu-II(dpa)(2)center dot 2H(2)O (1) (Tp = hydrotris(pyrazolyl)borate, dpa = 2,2-dipyridylamine) was obtained with tricyanometalate possessing smaller steric hindrance, whereas the trans trinuclear [Fe-III(pzTp)(CN)(3)](2)Cu-II(dpa)(2) (2) (pzTp = tetrakis(pyrazolyl)borate) was obtained using tricyanometalate with larger steric hindrance. The cis and trans arrangement leads to ferromagnetic and antiferromagnetic behaviors, respectively. Density functional theory (DFT) calculations were carried out to further substantiate the magnetic behaviors of both complexes. DFT computations show that the calculated magnetic coupling constant J was in agreement with the experimental results. (C) 2014 Elsevier B.V. All rights reserved.