crystallographic mirror plane. The Ti atom has distorted tetrahedral co-ordination, and it interacts strongly with the oxygen of the acetyl group which acts as a bidentate three-electron ligand. This structure explains the observed low CO stretching frequency for the acyl unit. Reaction with MeSO2Cl resulted in insertion of the Ti(cp)2 unit into the S–Cl bond giving [Ti(cp)2(O2SMe)Cl]. Reactions of (1)
的反应
钛[Ti(CP)2(CO)2 ](1)(CP =η-C 5 H ^ 5)与酰基卤RCOCl(R = Me或PH)给出
钛的N-酰基衍
生物(IV),
钛[Ti( CP)2(COR)Cl]。在相同条件下,(1)与烷基
碘的反应,得到酰基衍
生物钛[Ti(CP)2(COR)I](R =甲基,乙基,
镨我,或卜小号)。所有的酰基衍
生物的特征是在大约200 ℃下具有低的CO拉伸频率[ ν(CO)。1600厘米–1 ]。[Ti(CP)2(COMe)Cl]的X射线分析表明该分子具有C sTi和Cl原子与位于结晶镜面的乙酰基对称。Ti原子扭曲了四面体配位,并且与充当二齿三电子
配体的乙酰基氧强烈相互作用。该结构解释了所观察到的酰基单元的低CO拉伸频率。与MeSO 2 Cl的反应导致Ti(CP)2单元插入S-Cl键,得到[Ti(CP)2(O 2 SMe)Cl]。(1)与
碘化物,
菲-9,10-醌的反应。也报道了PPh