derivatives Zr( η 5 -C 5 H 5 )X[N(SiMe 2 CH 2 PPr 2 i ) 2 ) 2 ] (X OPh, NPh 2 and PPh 2 ); all of the hydrocarbyl and heteroatom substituted Zr III derivatives are mononuclear and were characterized by ESR spectroscopy. In addition, the hafnium(III) complex Hf( η 5 -C 5 H 5 )Cl[N(SiMe 2 CH 2 PPr 2 i ) 2 ] could be isolated via the same procedure but in this case, one could observe the analogous Zr III
摘要在
氩气或真空条件下,用
钠汞齐还原
锆(IV)前驱体Zr(η5 -C 5 H 5)Cl 2 [N(SiMe 2 CH 2 PPr 2 i)2]生成单核Zr III络合物Zr (η5 -C 5 H 5)Cl [N(SiMe 2 CH 2 PPr 2 i)2]作为热稳定的结晶材料。通过添加各种有机
金属试剂以及杂原子亲核试剂,可以使剩余的
氯化物进一步官能化。因此,制备了烃基络合物Zr(η5 -C 5 H 5)R [N(SiMe 2 CH 2 PPr 2 i)2](RPh,Me,Et,CH 2 Ph和CH 2 SiMe 3)。以及杂原子衍
生物Zr(η5 -C 5 H 5)X [N(SiMe 2 CH 2 PPr 2 i)2)2](XOPh,NPh 2和PPh 2);所有烃基和杂原子取代的Zr III衍
生物都是单核的,并通过ESR光谱进行了表征。此外,f(III)络合物Hf(η5 -C 5 H 5)Cl