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Crystal structure of 3-(tri-phenyl-phosphoranyl-idene)-2,5-di-hydro-furan-2,5-dione tetra-hydro-furan monosolvate.

ABSTRACT: The title pseudo-polymorph of 3-(tri-phenyl-phospho-ranyl-idene)-2,5-di-hydro-furan-2,5-dione crystallizes with a tetra-hydro-furan solvent mol-ecule, viz. C22H17O3P·C4H8O. The succinic anhydride ring is approximately planar (r.m.s. deviation = 0.032?Å). The tetra-hydro-furan mol-ecule is disordered over two orientations about a pseudo-twofold axis with refined occupancy ratio 0.718?(4):0.282?(4). In the crystal, C-H?O hydrogen bonds link mol-ecules of the di-hydro-furan-2,5-dione derivative into chains parallel to the b axis and arranged into layers stacked along [100] alternating with hydrogen-bonded tetra-hydro-furan layers.

SUBMITTER: Zagidullin A 

PROVIDER: S-EPMC6127696 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Crystal structure of 3-(tri-phenyl-phosphoranyl-idene)-2,5-di-hydro-furan-2,5-dione tetra-hydro-furan monosolvate.

Zagidullin Almaz A   Islamov Daut D   Oshchepkova Elena E   Lonnecke Peter P   Miluykov Vasili V  

Acta crystallographica. Section E, Crystallographic communications 20180824 Pt 9

The title pseudo-polymorph of 3-(tri-phenyl-phospho-ranyl-idene)-2,5-di-hydro-furan-2,5-dione crystallizes with a tetra-hydro-furan solvent mol-ecule, <i>viz</i>. C<sub>22</sub>H<sub>17</sub>O<sub>3</sub>P·C<sub>4</sub>H<sub>8</sub>O. The succinic anhydride ring is approximately planar (r.m.s. deviation = 0.032 Å). The tetra-hydro-furan mol-ecule is disordered over two orientations about a pseudo-twofold axis with refined occupancy ratio 0.718 (4):0.282 (4). In the crystal, C-H⋯O hydrogen bonds  ...[more]

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