Solvates of Two Ethyl 6-(2-(aryl)-4-oxothiazolidin-3-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylates
作者:Victor Facchinetti、Claudia R. B. Gomes、Marcus V. N. de Souza、Thatyana R. A. Vasconcelos、Solange M. S. V. Wardell、James L. Wardell
DOI:10.1007/s10870-014-0540-4
日期:2014.9
The crystal structures of solvates of ethyl 6-(2-(RC6H4)-4-oxothiazolidin-3-yl)-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylate derivatives, (1a; R = 3-Br) and (1b: R = H), namely [1a·(H2O)] and [(1b) 2·(H2O)2·(EtOH)], are reported. The solvate molecules in [(1b) 2·(H2O)2·(EtOH)] are disordered in contrast to the ordered hydrate molecule in [1a·(H2O)]. The disordered EtOH molecules merely solvate individual oxothiazolidine units, while the hydrate molecules in both compounds link the oxothiazolidine units into chains. Despite the differences involving the solvates, the supramolecular arrangements in the two solvated compounds are very similar, being made of O–H···O, C–H···O, C–H···π and π···π intermolecular interactions. It is noticeable that differently sited CH units in the RC6H4 rings are used in the C–H···π interactions. In each compound, the RC6H4 ring is near orthogonal to the very-near planar quinoline ring with angles between the best planes of 83.82(10)° and 88.52(3)°, for 1a and 1b, respectively. Compound (1) crystallizes in the triclinic space group P-1 with a = 10.7995(11) Å, b = 11.2612(11) Å, c = 11.3792(11) Å, α = 108.504(8)°, β = 116.317(8)°, γ = 92.846(7)°, and Z = 2. Compound (2) crystallizes in the triclinic space group P-1 with a = 10.8717(3) Å, b = 11.0038(3) Å, c = 11.2648(3) Å, α = 66.040(2)°, β = 86.422(2)°, γ = 67.052(1)°, and Z = 2. The supramolecular arrangements in the two solvated compounds are very similar, being made of O–H···O, C–H···O, C–H···π and π···π intermolecular interactions.
6-(2-(RC6H4)-4-氧代噻唑烷-3-基)-1-乙基-4-氧代-1,4-二氢喹啉-3-甲酸乙酯衍生物溶剂化物的晶体结构,(1a; R = 3报告了 (1b: R = H),即 [1a·(H2O)] 和 [(1b) 2·(H2O)2·(EtOH)]。 [(1b) 2·(H2O)2·(EtOH)] 中的溶剂化物分子是无序的,与 [1a·(H2O)] 中的有序水合物分子相反。无序的 EtOH 分子仅溶剂化单个氧代噻唑烷单元,而两种化合物中的水合物分子将氧代噻唑烷单元连接成链。尽管溶剂化物存在差异,但两种溶剂化化合物的超分子排列非常相似,均由 O–H…O、C–H…O、C–H…π 和 π… 组成π 分子间相互作用。值得注意的是,RC6H4 环中不同位置的 CH 单元用于 C–H…π 相互作用。在每个化合物中,RC6H4 环与非常接近的平面喹啉环接近正交,1a 和 1b 的最佳平面之间的角度分别为 83.82(10)° 和 88.52(3)°。化合物(1)在三斜空间群P-1中结晶,a = 10.7995(11) Å, b = 11.2612(11) Å, c = 11.3792(11) Å, α = 108.504(8)°, β = 116.317( 8)°,γ = 92.846(7)°,Z = 2。化合物 (2) 在三斜空间群 P-1 中结晶,a = 10.8717(3) Å,b = 11.0038(3) Å,c = 11.2648 (3) Å, α = 66.040(2)°, β = 86.422(2)°, γ = 67.052(1)°, Z = 2。两种溶剂化化合物的超分子排列非常相似,均由 O 组成–H…O、C–H…O、C–H…π 和 π…π 分子间相互作用。