Crystal structure of 4-[4-(eth­oxy­carbon­yl)piperazin-1-yl]benzoic acid

Acta Crystallographica Section E: Crystallographic Communications

Ahmad, M.¹  Faizi, M.S.H.²  Golenya, I.A.³ 

[1] Department of Applied Chemistry, Aligarh Muslim University, Aligarh 202 002, India;Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, UP 208 016, India;Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Vladimirska Str., Kiev 01601, Ukraine

关键词: CRYSTAL STRUCTURE;    PIPERAZINE;    HYDROGEN BONDS;    CARBOXYLIC ACIDS;    4-FLUOROBENZOIC ACID;    ETHYL 1-PIPERAZINECARBOXYLATE;   

DOI  :  10.1107/S2056989016012482

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The asymmetric unit of the title compound, C14H18N2O4, contains two independent mol­ecules (A and B) which have essentially the same conformation. The piperazine rings adopts chair conformations with the N atoms out of plane. The dihedral angles formed by the four approximately planar C atoms of the piperazine ring and the benzene ring is 30.8 (5)° in mol­ecule A and 30.6 (5)° in mol­ecule B. In the crystal, mol­ecules A and B are connected by a pair of O—H⋯O hydrogen bonds, forming a dimer with graph-set notation R22(8). Weak C—H⋯O hydrogen bonds connect the dimers, forming zigzag chains along [001].

【 授权许可】

CC BY