被撤回的出版物: Mechanical Reconfiguration of Stereoisomers (Retracted article. See vol. 137, pg. 3428, 2015)

Poly(methyl acrylate) of varying molecular weight was grown from the enantiopure ditopic initiator (R)- or (S)-1,1'-binaphthy1-2,2'-bis-(2-bromoisobutyrate). Subjecting CH3CN solutions of high-molecular-weight derivatives (M-N > 25 kDa) to sonication at 0 degrees C resulted in >95% racemization after 24 h, as determined by circular dichroism; no appreciable racemization was observed in low-molecular-weight derivatives. Control experiments excluded the possibility fa thermal racemization mechanism.