A series of early transition metal organometallic derivatives containing the ancillary ligand 2,6-diphenylphenoxide (OAr-2,6Ph2) have been synthesized. Compounds of stoichiometry Ti(OAr-2,6Ph2)2(R)2 (R = CH3, CH2SiMe3, CH2Ph and Ph) and Ti(OAr-2,6Ph)3(R) (R = CH3, CH2SiMe3) are obtained by treating the corresponding homoleptic alkyl, TiR4, with the required amount of phenol, HOAr-2,6Ph2. For the Group
已经合成了一系列含有辅助
配体2,6-二
苯酚(
OAr-2,6Ph 2)的早期过渡
金属有机
金属衍
生物。
化学计量的化合物Ti(
OAr-2,6Ph 2)2(R)2(R = CH 3,CH 2 SiMe 3,CH 2 Ph和Ph)和Ti(
OAr-2,6Ph)3(R)(R =通过用所需量的
苯酚H
OAr-2,6Ph 2处理相应的均烷基烷基TiR 4来获得CH 3,CH 2 SiMe 3)。对于第5组
金属Nb和Ta,
甲基衍
生物M(
OAr-2,6Ph 2)2(CH 3)3和M(
OAr-2,6Ph 2)3(CH 3)2通过相应的
氯-芳基
氧化物的
甲基化获得。除了常规的光谱表征外,二
苯基Ti(
OAr-2,6Ph 2)2(Ph)2和单烷基Ti(
OAr-2,6Ph 2)3(CH 2 SiMe 3X射线衍射技术已在结构上对其进行了表征。这两个分子都围绕
钛原子包含一个伪四面体环境,其短的1.794(3)–1.806(2)