4-[(3-Hydroxy-5-phenyl-1H-pyrazol-4-yl)-methyl]-5-phenyl-1H-pyrazol-3(2H)-one

被引：2
|
作者：
Baryala, Yamna
Zerzouf, Abdelfettah
Essassi, El Mokhtar
Reuter, Hans
Eickmeier, Henning
机构：
[1] Univ Osnabruck, Inst Chem, D-49069 Osnabruck, Germany
[2] ENS Rabat, Lab Chim Organ & Etud Physicochim, Rabat, Morocco
[3] Univ Mohammed V Rabat, Lab Chim Organ Heterocycl, Fac Sci, Rabat, Morocco
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2007年 / 63卷
关键词：
D O I：
10.1107/S1600536807018387
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The solid-state structure of the title compound, C19H16N4O2, is dominated by the keto-enol tautomerization of its two 1H-pyrazol-3-one moieties. Since all H atoms could be located in a difference Fourier synthesis, it was possible to distinguish the enol form from the keto form unambiguously. As a result of this tautomerization, an intramolecular hydrogen bond embedded in an eight-membered ring is formed. The two-dimensional hydrogen-bonding system results from three additional intermolecular hydrogen bonds of different strengths, all involved in eight-and ten-membered ring systems.
引用
收藏
页码：O2554 / O2556
页数：3
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