0000000001302747
AUTHOR
Andreas Seidel-morgenstern
Single Enantiomer’s Urge to Crystallize in Centrosymmetric Space Groups: Solid Solutions of Phenylpiracetam
A detailed thermochemical and structural study of the phenylpiracetam enantiomer system was performed by characterizing the solid solutions, rationalizing the structural driving force for their formation, as well as identifying a common structural origin responsible for the formation of solid solutions of enantiomers. Enantiomerically pure phenylpiracetam forms two enantiotropically related polymorphs (enant–A and enant–B). The transition point (70(7) °C) was determined based on isobaric heat capacity measurements. Structural studies revealed that enant–A and enant–B crystallize in space groups P1 (Z′ = 4) and P212121 (Z′ = 2), respectively. However, pseudoinversion centers were present res…
CCDC 1523462: Experimental Crystal Structure Determination
Related Article: Toms Rekis, Agris Be̅rziņš, Lia̅na Orola Tamás Holczbauer, Andris Actinš, Andreas Seidel-Morgenstern, Heike Lorenz|2017|Cryst.Growth Des.|17|1411|doi:10.1021/acs.cgd.6b01867
CCDC 1523460: Experimental Crystal Structure Determination
Related Article: Toms Rekis, Agris Be̅rziņš, Lia̅na Orola Tamás Holczbauer, Andris Actinš, Andreas Seidel-Morgenstern, Heike Lorenz|2017|Cryst.Growth Des.|17|1411|doi:10.1021/acs.cgd.6b01867
CCDC 1523461: Experimental Crystal Structure Determination
Related Article: Toms Rekis, Agris Be̅rziņš, Lia̅na Orola Tamás Holczbauer, Andris Actinš, Andreas Seidel-Morgenstern, Heike Lorenz|2017|Cryst.Growth Des.|17|1411|doi:10.1021/acs.cgd.6b01867