Dimers linked by type-I C-F•••F-C contacts in (Z)-3-methyl-4-[2-(4-methylphenyl)hydrazinylidene]-1-(pentafluorophenyl)-1H-pyrazol-5(4H)-one

被引：4

作者：

Alvarez-Thon, Luis ^{[1
]}

Bustos, Carlos ^{[2
]}

Espinoza-Santibanez, Katherina ^{[2
]}

Teresa Garland, Maria ^{[3
]}

Baggio, Ricardo ^{[4
]}

机构：

[1] Univ Andres Bello, Dept Ciencias Fis, Santiago, Chile

[2] Univ Austral Chile, Inst Ciencias Quim, Valdivia, Chile

[3] Univ Chile, Fac Ciencias Fis & Matemat, Dept Fis, Santiago, Chile

[4] Comis Nacl Energia Atom, Ctr Atom Constituyentes, RA-1429 Buenos Aires, DF, Argentina

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2013年 / 69卷

关键词：

crystal structure; pyrazole derivatives; noncrystallographic symmetry; type-I C-F center dot center dot center dot F-C contacts; PHOSPHODIESTERASE; INHIBITORS;

D O I：

10.1107/S0108270113024943

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title compound, C17H11F5N4O, is described and compared with two closely related analogues in the literature. There are two independent molecules in the asymmetric unit, linked by N-H center dot center dot center dot O hydrogen bonds and pi-pi interactions into dimeric entities, presenting a noticeable noncrystallographic C-2 symmetry. These dimers are in turn linked by a medium-strength type-I C-F center dot center dot center dot F-C interaction into elongated tetramers. Much weaker C-H center dot center dot center dot F contacts link the tetramers into broad two-dimensional substructures parallel to (101).

引用

页码：1200 / +

页数：13

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