New π-electron donors with a 2,2,5,5-tetramethylpyrrolin-1-yloxyl radical designed for magnetic molecular conductors

For the development of magnetic molecular conductors, we succeeded in the synthesis of new pi-electron donors containing TTF (tetrathiafulvalene) or TTP (tetrathiapentalene) framework and a stable 2,2,5,5-tetramethylpyrrolin-1-yloxyl radical within a molecule and clarified the crystal structure and physical properties of these donors. We also discuss the conducting and magnetic properties of a TCNQF(4) complex of the synthesized TTF type donor.