The cis/trans conformation approach for tuning the magnetic coupling in a diradical: isolation of pure pyridine-based diradical dianions.
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DOI: 10.1039/d1cc05661a
Abstract: Two-electron reductions of 3,3'-bis(2,6-dimesitylpyridin-4-yl)-1,1'-biphenyl 1 with elemental potassium in the absence and presence of 18-c-6 afforded the diradical dianion salts [K+]2˙[trans-1]˙˙2- and [K(18-c-6)]+2˙[cis-1]˙˙2-, which exhibit trans and cis configurations, respectively. The transoid conformer could be… read more here.
Keywords: magnetic coupling; trans conformation; cis trans; approach tuning ... See more keywords