Isotopomeric polymorphism in a “doubly-polymorphic” multi-component molecular crystal
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چکیده
منابع مشابه
Many-body dispersion interactions in molecular crystal polymorphism.
Submitted for the MAR12 Meeting of The American Physical Society The Role of Many-Body Dispersion Interactions in Molecular Crystal Polymorphism LESLIE LEISEROWITZ, Weizmann Institute of Science, Rehovoth, Israel, NOA MAROM, Institute for Computational Engineering and Sciences, The University of Texas at Austin, ROBERT A. DISTASIO, JR., Department of Chemistry, Princeton University, NJ, VIKTOR ...
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We report the observation of a doubly periodic surface defect pattern in the liquid crystal 8CB, formed during the nematic-smectic-A phase transition. The pattern results from the antagonistic alignment of the 8CB molecules, which is homeotropic at the surface and planar in the bulk of the sample cell. Within the continuum Landau-de Gennes theory of smectic liquid crystals, we find that the lon...
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Although crystal polymorphism of carbamazepine (CBZ), an anticonvulsant used to treat epilepsy, has been known for decades, the phenomenon has only recently been noted for its keto-derivative oxcarbazepine (OCB). Here it is demonstrated that OCB possesses at least three anhydrous polymorphs. Although all forms are morphologically similar, making differentiation between crystal modifications by ...
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چکیده ندارد.
15 صفحه اولCrystal Polymorphism and Multiple Crystal Forms
This chapter discusses the phenomenon of polymorphism in organic and organometallic compounds. Polymorphism is first introduced and then, to give the work some context, background information is given concerning properties and techniques for characterizing the solid phases. In particular, desolvation and interconverstion are examined, and the gas–solid reactions are presented as a successful ro...
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ژورنال
عنوان ژورنال: CrystEngComm
سال: 2015
ISSN: 1466-8033
DOI: 10.1039/c5ce00123d