Studies with the Rhenacarborane Cs[Re(CO)<sub>3</sub>(η<sup>5</sup>-7,8-C<sub>2</sub>B<sub>9</sub>H<sub>11</sub>)]: Surprising Reactivity with a Range of Metal Ligand Fragments
作者:Dianne D. Ellis、Paul A. Jelliss、F. Gordon A. Stone
DOI:10.1021/om9905097
日期:1999.11.1
these agostic interactions utilizes a β-B−H bond in the coordinating face of the cage, while the source of the remaining two B−H⇀Ru bonds is in the B5 belt. The anion of salt 1 also binds exopolyhedral [Rh(PPh3)2]+ and [RhFe(η-C5H4PPh2)2}]+ fragments in the complexes [Re(CO)3(η5-5,10-(μ-H)2-exo-(RhL2)-7,8-C2B9H9)] (L2 = (PPh3)2 (3a), Fe(η-C5H4PPh2)2} (3b)). Reaction of 1 with the salts [M(CO)2(THF)(η-C5H5)][BF4]
所述rhenacarborane盐铯[的Re(CO)3(η 5 -7,8--C 2乙9 ħ 11)](1)在使用新的程序优良产率已经合成。CH的治疗2氯2个的解决方案1与将[RuCl 2(PPH 3)3 ]产生的外切-闭合碳络合物[的Re(CO)3(η 5 -2,3,10-(μ -H)3 -外型- RuCl(PPh 3)2 } -7,8-C 2B 9 H 8)](2a)。在该分子中的合成将[RuCl(PPH 3)2 ] +部分exopolyhedrally经由三个B-H⇀Ru键的结合闭合碳-3,1,2-REC 2乙9系统。X射线衍射研究表明,这些异常相互作用之一是利用笼子配位面上的β -B-H键,而其余两个B-H⇀Ru键的来源位于B 5带中。盐1的阴离子还结合了外多面体[Rh(PPh 3)2 ] +和[Rh Fe(η- C5 ħ 4 PPH 2)2 }] +在配合物[的Re(CO)片段3(η