关键词: 水杨酸, 阿司匹林, 钛络合物, 环戊二烯P, 金属茂络合物, 抗氧化作用, 元素分析, 质子磁共振谱法, Ｘ射线光电子谱法

Two complexes of dicyclopentadienyldiaspirin titanium (Ⅳ) and dicyclopentadienyl titanium (Ⅳ) disalicylate were synthesized by the reactions of dicyclopentadienyl titaniumdichloride with sodium acetyl salicylate or sodium salicylate in absolute benzene and characterized by elemental analysis, IR, ^1H NMR, XPS etc. The formulas of the complexes were established as cp~2 Ti(Asp)~2 and cp~2 Ti(Sal)~2 (in which cp=η^5 - C~5H~5，Asp=acetyl salicylate ion, Sal=salicylate ion) . Asp and Sal were coordinated to Ti (Ⅳ) via monodentate form. By the determination and the comparison of the elimination rates to supraoxide anion free radical (O~2^-^.) and hydroxyl free radical (OH^.) of the seven compounds [cp~2 Ti(Asp)~2, cp~2 Ti(Sal)~2, cp~2 TiCl~2, aspirin(HAsp), salicylic acid (HSal), Ti(OH)~2(Asp~2) and Ti (OH)~2(Sal)~2], it was discovered that formation of the mixed ligand complexes from Asp (or Sal), cyclopentadienyl and Ti(Ⅳ) could produce the "synergistic action" for the elimination of the above radicals.

Key words: SALICYLIC ACID, ASPIRIN, TITANIUM COMPLEX, CYCLOPENTADIENE P, METALLOCENES, ANTIOXYGENATION, ELEMENTAL ANALYSIS, PROTON MAGNETIC RESONANCE SPECTROMETRY, X-RAY PHOTOELECTRON SPECTROMETRY