Trisphenalenyl-based neutral radical molecular conductor.
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).
Pal
Sushanta K
SK
Department of Chemistry, University of California, Riverside, California 92521-0403, USA.
Itkis
Mikhail E
ME
Tham
Fook S
FS
Reed
Robert W
RW
Oakley
Richard T
RT
Haddon
Robert C
RC