A bicyclo [3.3.0] octane-like core consisting of eight bismuth atoms is found in the novel octabismuthane Bi-8[Sn(SiMe3)(3)](6). It is prepared like Bi-4[Si(SiMe3)(3)](4) by reduction of BiBr3 with Li(thf)(3)E(SiMe3)(3) (E = Si, Sn) together with (Me3Si)(6)E-2. Both bismuth ring compounds have been characterized by single crystal X-ray crystallography.
A bicyclo [3.3.0] octane-like core consisting of eight bismuth atoms is found in the novel octabismuthane Bi-8[Sn(SiMe3)(3)](6). It is prepared like Bi-4[Si(SiMe3)(3)](4) by reduction of BiBr3 with Li(thf)(3)E(SiMe3)(3) (E = Si, Sn) together with (Me3Si)(6)E-2. Both bismuth ring compounds have been characterized by single crystal X-ray crystallography.
Cubane‐Like Bismuth‐Iron Cluster: Synthesis, X‐ray Crystal Structure and Theoretical Characterization of the [Bi
<sub>4</sub>
Fe
<sub>8</sub>
(CO)
<sub>28</sub>
]
<sup>4–</sup>
Anion
作者:Kirill Yu. Monakhov、Thomas Zessin、Gerald Linti
DOI:10.1002/ejic.201000215
日期:2010.7
reaction of cyclo-Bi 4 [Si(SiMe 3 ) 3 ] 4 (1) with Na 2 [Fe(CO) 4 ] in the presence of nBu 4 NCl leads to the formation of the cage compound [nBu 4 N] 4 [Bi4Fe8 (CO) 28 ] (2). According to X-ray single-crystal structure analysis, the faces of the tetrahedral Bi4 core are capped by Fe(CO) 3 moieties in a μ 3 fashion to give a cubanoid Bi4Fe4 framework. The four Fe(CO) 4 fragments are μ 1 -coordinated