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Dimethyl 2,2′-[(4-oxo-2-phenyl-4H-chromene-5,7-diyl)dioxy]diacetate: a less densely packed polymorph

The title molecule, C(21)H(18)O(8), crystallizes in two crystal polymorphs, see also Nallasivam, Nethaji, Vembu & Jaswant [Acta Cryst. (2009), E65, o312–o313]. The main difference between the two polymorphs is in the conformation of the oxomethylacetate groups with regard to the almost planar...

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Detalles Bibliográficos
Autores principales:	Nallasivam, Angannan, Nethaji, Munirathinam, Vembu, Nagarajan, Jaswant, Buckle, Sulochana, Nagarajan
Formato:	Texto
Lenguaje:	English
Publicado:	International Union of Crystallography 2009
Materias:	Organic Papers
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2968320/ https://www.ncbi.nlm.nih.gov/pubmed/21581921 http://dx.doi.org/10.1107/S1600536809001019

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