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The Crystal Structure of DL-Lomenfloxacin Hydrate

机译:DL-洛美沙星水合物的晶体结构

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The DL-lomenfloxacin hydrate is an innersalt, which crystallizes in space group C2/c with cell parameters a = 22.897(10), b = 8.682(1), c = 18.365(2) angstrom, beta = 93.6 33(9)degrees, V = 3,705(3) angstrom(3) and Z = 8. The piperazinyl ring adopts a chair conformation, and the quinolone ring is essentially planar. The plane defined by C atoms of the piperazinyl ring is not coplanar with the quinolone ring. The carboxylate group shows two disorder parts, and is not coplanar with the quinolone ring, the dihedral angle between them is 113.8 degrees. The disorder carboxylate group is split into two parts, the planes of which are skewed at the dihedral angles of 24.5 and 21.6 degrees with the plane of the quinolone ring, respectively. The IR of the title compound is measured and studied.
机译:DL-洛美沙星水合物是一种内盐,其在C2 / c空间群中结晶,细胞参数为a = 22.897(10),b = 8.682(1),c = 18.365(2)埃,β= 93.6 33(9)度,V = 3,705(3)埃(3),Z = 8。哌嗪基环采用椅子构象,并且喹诺酮环基本上是平面的。哌嗪基环的C原子限定的平面与喹诺酮环不共面。羧酸酯基显示两个无序部分,与喹诺酮环不共面,它们之间的二面角为113.8度。无序羧酸酯基团分为两部分,其平面分别与喹诺酮环的平面成24.5和21.6度的二面角倾斜。测量并研究标题化合物的IR。

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