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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of 3-(tri­phenyl­phosphoranyl­idene)-2,5-di­hydro­furan-2,5-dione tetra­hydro­furan monosolvate
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Crystal structure of 3-(tri­phenyl­phosphoranyl­idene)-2,5-di­hydro­furan-2,5-dione tetra­hydro­furan monosolvate

机译:3-(三苯基膦亚基)-2,5-二氢呋喃-2,5-二酮四氢呋喃单溶剂合物的晶体结构

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The title pseudo-polymorph of 3-(tri­phenyl­phospho­ranyl­idene)-2,5-di­hydro­furan-2,5-dione crystallizes with a tetra­hydro­furan solvent mol­ecule, viz. C22H17O3P·C4H8O. The succinic anhydride ring is approximately planar (r.m.s. deviation = 0.032 Å). The tetra­hydro­furan mol­ecule 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 mol­ecules of the di­hydro­furan-2,5-dione derivative into chains parallel to the b axis and arranged into layers stacked along [100] alternating with hydrogen-bonded tetra­hydro­furan layers.
机译:3-(三苯基亚膦酰基)-2,5-二氢呋喃-2,5-二酮的标题假多晶型物用四氢呋喃溶剂分子结晶。 C22H17O3P·C4H8O。琥珀酸酐环是大致平面的(r.m.s.偏差= 0.032)。四氢呋喃分子绕假双倍轴在两个方向上无序排列,精细占据比为0.718(4):0.282(4)。在晶体中,CHOH氢键将二氢呋喃-2,5-二酮衍生物的分子连接成平行于b轴的链,并排列成沿[100]堆叠的层,并与氢键合的四氢呋喃层交替排列。

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