Application of Molecular Spins : from Nanomagnets to Biological Spin Systems

我们研究了杂环噻唑基自由基的晶体结构和磁性能，这些自由基具有化学稳定性，在固体状态下具有三维网络结构，并具有强的交换作用。我们发现了各种各样的功能特性，如TTTA在室温下的光诱导相变，BBDTA盐的高tc铁磁有序，BDYTA盐的电荷转移相变以及NT盐的非线性电输运。此外，我们发现了Mn12的磁结构相关性，并具有典型的Jahn-Teller畸变，并开发了直径为500 nm的各种金属和金属氧化物的球形空心磁体的化学合成。

We have examined the crystal structures and magnetic properties of heterocyclic thiazyl radicals which possessed chemical stabilities, 3D network structures in the solid states, and strong exchange interactions. We found various functional properties, such as a photo-induced phase transition at room temperature in TTTA, high-Tc ferromagnetic ordering in a BBDTA salt, charge-transfer phase transition in a BDYTA salt, and a non-linear electrical transport in a NT salt. Besides, we revealed magneto-structural correlation in Mn12 with a characteristic Jahn-Teller distortion, and developed chemical syntheses of spherical hollow magnets of various metals and metal oxides with a diameter of 500 nm.