Making carbon–carbon bonds is hard. Linking racemic mixtures of two alkyls while simultaneously controlling the stereochemistry of both ends of the product is nigh on impossible. Now Gregory Fu, ...

Figure 1. Schematic diagram of the racemic metasurface. (a) Arbitrary polarization-wavefront conversion. (b) Racemic "super-units". Chirality is one of the fundamental phenomena widely present in ...

THE difficulties found by several investigators 1 in attempting to separate a racemic compound into its optical antipodes by means of chromatography on paper are well known. We have attempted to ...

It is well established that an enantiomerically pure compound exhibiting advantageous properties not present in its isomer or its corresponding racemic mixture, can be patented even if its ...

SINCE the introduction of Tswett's technique of chromatographic adsorption, this process has been applied successfully to the separation of many isomeric or closely related substances, including the ...