Lanthanide Template Synthesis of Trefoil Knots of Single Handedness
作者:Gen Zhang、Guzmán Gil-Ramírez、Augustinas Markevicius、Colm Browne、Iñigo J. Vitorica-Yrezabal、David A. Leigh
DOI:10.1021/jacs.5b07069
日期:2015.8.19
the use of only (R,R)-1 leads solely to a trefoilknot of Λ-handedness, whereas (S,S)-1 forms the Δ-trefoil knot with complete stereoselectivity. The knots and their isomeric unknot macrocycles were characterized by NMR spectroscopy, mass spectrometry, and X-ray crystallography and the expression of the chirality that results from the topology of the knots studied by circular dichroism.