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Two chiral 3,3′-disubstituted BINOL derivatives 3a and 3b have been synthesized and their crystal structures have been reported. Their direct evidence of the solid-state conformations and their structural details of the unique 2D supramolecular architectures have been obtained. The intramolecular hydrogen bonds of both compounds lock two substituents at 3,3′-positions (like two arms) towards exterior...
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