An approach to organic ferromagnets. Synthesis and characterization of 1-phenyl-1,3-butadiyne polymers having a persistent nitroxide group on the phenyl ring

Article abstract of DOI:10.1021/ja00026a014

1-[3-(N-tert-Butylhydroxyamino)-4-chlorophenyl]-1,3-butadiyne (3) was obtained as colorless needles (mp ca. 140 °C from diethyl ether) that polymerized 100% in 24 h at 120°C to give a black, ethanol-insoluble microcrystalline product. Crystals of 3 are tr