T. Yamamoto et al., Preparation and characterization of regioregular head-to-tail pi-conjugated poly(pyridine-2,5-diyl)s, CHEM LETT, (6), 2001, pp. 502-503
Regioregular head-to-tail pi -conjugated polypyridines have been prepared f
or the first time by organometallic polycondensation using Ni(II) complexes
as the catalyst. The proportion of the MT-content in poly(6-hexylpyridine-
2,5-diyl) was higher than 95%.