Trisphenalenyl-based neutral radical molecular conductor.
Trisphenalenyl-based neutral radical molecular conductor.
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三苯那烯基中性自由基分子导体。
DOI：
10.1021/ja077771o
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发表时间：
2008
影响因子：
15
通讯作者：
R. Haddon
中科院分区：
文献类型：
--
作者：
S. Pal;M. Itkis;F. Tham;R. Reed;R. T. Oakley;R. Haddon
我们报告的制备，结晶和固态表征的第一个成员的一个新的家庭三（1，9-二取代phenalenyl）硅中性自由基。在固体状态下，自由基包装为弱部分π-二聚体与分子间的碳…在货车范德华力原子分离处落下的碳接触。磁化率测量表明，从室温到50 K，每个分子大约有0.7个居里自旋，低于50 K，反铁磁耦合变得明显;该化合物的室温单晶电导率为σ RT = 2.4 x 10（-6）S cm（-1）。
We report the preparation, crystallization, and solid-state characterization of the first member of a new family of tris(1,9-disubstituted phenalenyl)silicon neutral radicals. In the solid state, the radical packs as weak partial pi-dimers with intermolecular carbon...carbon contacts that fall at the van der Waals atomic separation. Magnetic susceptibility measurements indicate approximately 0.7 Curie spins per molecule from room temperature down to 50 K, below which antiferromagnetic coupling becomes apparent; the compound has a room-temperature single-crystal conductivity of sigmaRT = 2.4 x 10(-6) S cm(-1).