波谱学杂志 ›› 1987, Vol. 4 ›› Issue (2): 155-160.

• 研究论文 • 上一篇    下一篇

氟哌酸1HNMR的测定及过渡金属离子对其影响

陈亮, 胡玉仙   

  1. 山西大学化学系 太原
  • 收稿日期:1986-04-30 修回日期:1986-11-07 出版日期:1987-06-05 发布日期:2018-01-22

1H T1 OF THE NORFLOXACIN AND THE EFFECTS OF TRANSITION METAL IONS

Chen Liang, Hu Yuxian   

  1. Chemistry Department, Shanxi University, Taiyuan
  • Received:1986-04-30 Revised:1986-11-07 Online:1987-06-05 Published:2018-01-22

摘要: 氟哌酸*[即1-乙基-6-氟-4-氧-7-(1-哌嗪)-3-(1,4-二氢化喹啉甲酸]是一种广谱、安全、有效、可供口服的抗感染药。我们测定了它的1H自旋-晶格弛豫时间T1及其在Cr3+、Mn2+、和Fe3+等过渡金属离子存在下的T1值。
实验结果表明,在加入过渡金属离子前后,氟哌酸不同位1H的T1值发生了一定的变化。据此可揭示过渡金属离子和氟哌酸形成配合物的配位点,从而可确定所形成配合物的结构。

关键词: 氟哌酸核磁共振T1, 过渡金属离子, 配合物, 立体化学结构

Abstract: The norfloxacin is an effective and safe anti-infective with broad-spectrum, and can be taken orally ·Its 1H spin-lattice relaxation times (T1) were determined in the presence and absnce of some transintion metal ions such as Cr3+, Mn2+ and Fe3+.The experimental results showed that T1 values appeared to vary regularly by the addition of these paramagnetic metal ions with unpaired electrons in the high spin state. The T1 values of 1H at different sites reduced variously m-ong which the T1 values of 2-H and 5-H reduced most obviously. The structures of the complexes, bonded states and bonding quantity are discussed with respect to the relaxation times thus measured.

Key words: norfloxicin, NMRT1, transition metal ion, Complex, Stereochemical structure