Acta Chimica Sinica ›› 2013, Vol. 71 ›› Issue (12): 1575-1588.DOI: 10.6023/A13060664 Previous Articles     Next Articles

Review

多酸构筑的单分子磁体

冯小佳a,b, 李阳光a, 张志明a, 王恩波a   

  1. a 国家教育部多酸化学重点实验室 东北师范大学化学学院 长春 130024;
    b 沈阳农业大学理学院 沈阳 110161
  • 收稿日期:2013-06-25 出版日期:2013-12-14 发布日期:2013-10-12
  • 通讯作者: 李阳光, 王恩波 E-mail:liyg658@nenu.edu.cn;wangeb889@nenu.edu.cn
  • 基金资助:

    项目受中国国家自然科学基金(Nos. 20701005,91027002,21271039)和中央高校基本科研业务费专项资金资助.

Polyoxometalate-mediated Single-molecule Magnets

Feng Xiaojiaa,b, Li Yangguanga, Zhang Zhiminga, Wang Enboa   

  1. a Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China;
    b College of Sciences, Shenyang Agricultural University, Shenyang 110161, China
  • Received:2013-06-25 Online:2013-12-14 Published:2013-10-12
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 20701005, 91027002, 21271039) and the Fundamental Research Funds for the Central Universities.

The design and synthesis of molecular-based materials displaying single-molecule magnet (SMM) property is currently a subject of worldwide research activity. A common strategy is the use of organic multi-dentate O-donor and/or N-donor ligands to assemble various spin carriers into simple complexes or polynuclear clusters so as to satisfy the essential necessaries of a SMM combing with large spin (S) and negative uniaxial anisotropy (D). It is interesting that polyoxometalates (POMs) have recently been developed as a new type of inorganic building blocks for the preparation of SMMs. Generally, POMs are one type of unique inorganic nanoscale clusters with oxygen-rich surfaces, controllable size, shape and charge as well as a series of lacunary structural species, which tend to combine various transition metal (TM) and/or lanthanide (Ln) ions into giant clusters or aggregates. In last five years, a number of {TMn}-, {Lnn}-, and {TMxLny}-based SMMs by the use of POM ligands were reported. Especially, some POMs can also provide an ideal ligand field for Ln ions so as to obtain new type of single-ion magnets (SIMs), which has marked a new impetus in this area. Furthermore, the hybrid POM materials behaving as SMMs have been prepared by dispersing high-spin anisotropic units (like SMMs) into the porous anionic POM-based structures. A recent advance has also focused on the construction of POM-templated polynuclear clusters with SMM properties. In this review, we will give an overall perspective of the present POM-mediated SMMs with the emphasis on the synthetic strategies, the roles and advantages of POMs in the preparation of SMMs as well as the new prospect of this research field in the near future.

Key words: polyoxometalate, single-molecule magnet, inorganic ligands, diluting agent, templates