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Zeitschrift für Kristallographie - Crystalline Materials

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Die Molekular- und Kristallstruktur von 4-Methoxy-6-(5′,6′-dioxymethylen-styryl)-5,6-dihydro-α-pyron (Methysticin) C15H14O5*

P. Engel / W. Nowacki

Citation Information: Zeitschrift für Kristallographie. Volume 136, Issue 5-6, Pages 437–452, ISSN (Online) 0044-2968, ISSN (Print) 1433-7266, DOI: https://doi.org/10.1524/zkri.1972.136.5-6.437, July 2010

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The crystalline form of 4-methoxy-6-(5′,6′-dioxymethylene-styryl)-5,6-dihydro-α-pyrone is assigned to space group P212121D24 having parameters a = 28.916, b = 8.504, c = 5.348 Å. The crystal structure was determined by the direct phasing method with the tangent formula [unk]

The refinement by the block-diagonal-matrix least squares led to a R value of 0.07 using 1501 reflections. The two ring systems of the molecule are twisted by 73°. The molecules are held together by van der Waals forces only.

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