Preparation, Solution Behavior, and Solid-State Structures of (1,3-R<sub>2</sub>C<sub>5</sub>H<sub>3</sub>)<sub>2</sub>UX<sub>2</sub>, Where R Is CMe<sub>3</sub> or SiMe<sub>3</sub> and X Is a One-Electron Ligand
作者:Wayne W. Lukens、Sharon M. Beshouri、Laura L. Blosch、Anthony L. Stuart、Richard A. Andersen
DOI:10.1021/om9805988
日期:1999.3.1
High-yield preparations of the uranium metallocenes [1,3-(Me3Si)2C5H3]2UCl2 (Cp‘ ‘2UCl2) and [1,3-(Me3C)2C5H3]2UCl2 (Cp⧧2UCl2) have been developed from the reaction of UCl4 and the corresponding magnesocenes Cp‘ ‘2Mg and Cp⧧2Mg in diethyl ether. The chloride ligands can be exchanged with either Me3SiBr or Me3SiI to give the uranium metallocene bromides or iodides. The fluorides were prepared by the
铀金属茂[1,3-(我的高产制剂3 Si)的2 ç 5 ħ 3 ] 2 UCL 2(CP' 2 UCL 2)和[1,3-(ME 3 C)2 C ^ 5 ħ 3 ] 2 UCL 2(CP ⧧ 2 UCL 2)已经从UCL的反应开发4和相应的magnesocenes CP”' 2 Mg和的Cp ⧧ 2镁在二乙醚中。氯化物配体可以与Me 3交换SiBr或Me 3 SiI生成铀茂金属溴化物或碘化物。通过BF的反应制备氟化物3 ·OET 2再用Cp' 2 U(NME)2中,Cp ⧧ 2 U(OME)2或CP ⧧ 2 UME 2。Cp的晶体结构'' 2 UCL 2中,Cp ⧧ 2 UCL 2中,Cp ' 2 UME 2中,Cp ⧧ 2 UF 2,和二聚体(CP'' 2 UF 2)2被报道。单体CP”'的理想化对称性2 UX 2 1和Cp ⧧ 2 UCL 2是C ^ 2 v当X是F,Cl,或Br,C ^