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…

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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

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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

research product

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

research product