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Die Molekular- und Kristallstruktur von trans-δ-[p-Methoxystyryl]-4-methoxy-α-pyron (Yangonin) C15H14O4 *
Veröffentlicht/Copyright:
28. Juli 2010
Abstract
The crystalline form of trans-δ-[p-methoxystyryl]-4-methoxy-α-pyron is assigned to space group P21/c–C2h5 having parameters a = 7.313, b = 7.480, c = 23.721 Å and β = 94°21′. The crystal structure was found from the Patterson diagramm using the special symmetry of the space group P21/c. The refinement by the block-diagonal-matrix least squares led to a R value of 0.07 using 2256 reflections. The molecules are approximately planar and are held together by van der Waals forces only.
Published Online: 2010-7-28
Published in Print: 1971-9-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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Artikel in diesem Heft
- Crystal structures of two twelve-layered CdI2 polytypes
- Determination of dispersion and polarization of thermal plane waves in crystals
- Die Molekular- und Kristallstruktur von trans-δ-[p-Methoxystyryl]-4-methoxy-α-pyron (Yangonin) C15H14O4 *
- The crystal structures of 2 M1 phengite and 2 M1 muscovite
- The force field of K feldspar
- Crystal structure of l-prolyl-l-phenylalanine-o-methoxy hydrobromide*
- The crystal structure of the mono-potassium salt of l-aspartic acid dihydrate
- Influence of heat-treatment on the average structure of Mg[Al2Si3O10], a stuffed derivative of the high-quartz structure *
- Protoenstatite: a crystal-structure refinement at 1100°C
- Electrostatic energy calculations of diaspore (α AlOOH), goethite (α FeOOH) and groutite (α MnOOH)
- U–O bond lengths and force constants in some uranyl minerals
- The crystal structure of 2,3,4,4-tetrachloro-1-keto-naphthalenedihydride at −160°C,
- Proposed structure of high-pressùre tellurium
- The coherent neutron scattering amplitude of caesium
- Die Kristallstruktur von Hg(OH)NO3
- Crystal data on bis(thiourea)silver(I) thiocyanate
- Crystal data for two synergistic complexes, UO2(TTA)2TBP and UO2(TTA)2TOPO
Artikel in diesem Heft
- Crystal structures of two twelve-layered CdI2 polytypes
- Determination of dispersion and polarization of thermal plane waves in crystals
- Die Molekular- und Kristallstruktur von trans-δ-[p-Methoxystyryl]-4-methoxy-α-pyron (Yangonin) C15H14O4 *
- The crystal structures of 2 M1 phengite and 2 M1 muscovite
- The force field of K feldspar
- Crystal structure of l-prolyl-l-phenylalanine-o-methoxy hydrobromide*
- The crystal structure of the mono-potassium salt of l-aspartic acid dihydrate
- Influence of heat-treatment on the average structure of Mg[Al2Si3O10], a stuffed derivative of the high-quartz structure *
- Protoenstatite: a crystal-structure refinement at 1100°C
- Electrostatic energy calculations of diaspore (α AlOOH), goethite (α FeOOH) and groutite (α MnOOH)
- U–O bond lengths and force constants in some uranyl minerals
- The crystal structure of 2,3,4,4-tetrachloro-1-keto-naphthalenedihydride at −160°C,
- Proposed structure of high-pressùre tellurium
- The coherent neutron scattering amplitude of caesium
- Die Kristallstruktur von Hg(OH)NO3
- Crystal data on bis(thiourea)silver(I) thiocyanate
- Crystal data for two synergistic complexes, UO2(TTA)2TBP and UO2(TTA)2TOPO
