[structure: see text] Substitution of hydrogens by fluorines at the 5, 5', 6, 6', 7, 7', 8, and 8' positions of BINOL strongly affects distribution of electron density within the biaryl skeleton but has a very small influence on the torsion angle. The most important consequence of this structural alteration is the dramatic increase in configurational stability of homochiral F8BINOL.
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