SYNTHESIS AND CRYSTAL-STRUCTURE OF THE ORGANOGERMANIUM COMPLEX OF YTTERBIUM [(PH(2)GE)(4)YB(THF)(4)]CENTER-DOT-4THF WITH A 5-MEMBERED GE4YB CYCLE
SYNTHESIS AND CRYSTAL-STRUCTURE OF THE ORGANOGERMANIUM COMPLEX OF YTTERBIUM [(PH(2)GE)(4)YB(THF)(4)]CENTER-DOT-4THF WITH A 5-MEMBERED GE4YB CYCLE
复制标题
DOI：
10.1016/0022-328x(94)05315-3
复制
发表时间：
1995-03-22
影响因子：
2.3
通讯作者：
STRUCHKOV, YT
中科院分区：
文献类型：
--
作者：
BOCHKAREV, LN;MAKAROV, VM;STRUCHKOV, YT
镱的有机锗络合物 [(Ph(2)Ge)(4)Yb(THF)(4)]。 4TKF (1) 是通过金属镱与 Ph(2)GeCl(2) 在 THF 中室温反应合成的。 X射线研究表明(Ph(2)Ge)(4)Yb(THF)(4)分子是具有C-2对称性的八面体Yb配合物。 Yb 原子上的四个配位位置被 THF 分子的氧原子占据，两个顺式位置被 Ph(2)Ge-GePh(2)-GePh(2)-GePh(2) 片段的两个末端锗原子占据。因此，(Ph(2)Ge)(4)Yb(THF)(4)分子涉及具有扭曲构象的五元Ge4Yb金属环。 Yb-Ge 和 Yb-O 距离分别为 3.104(2) 和 2.475(8)、2.402(10) 埃。
The organogermanium complex of ytterbium [(Ph(2)Ge)(4)Yb(THF)(4)]. 4TKF (1) was synthesized by the reaction of metallic ytterbium with Ph(2)GeCl(2) in THF at room temperature. X-ray study has shown that the molecule of (Ph(2)Ge)(4)Yb(THF)(4) is an octahedral Yb complex with the C-2 symmetry. The four coordination positions at the Yb atom are occupied by the oxygen atoms of THF molecules and the two cis-positions are occupied by two terminal germanium atoms of the Ph(2)Ge-GePh(2)-GePh(2)-GePh(2) fragment. Thus, the (Ph(2)Ge)(4)Yb(THF)(4) molecule involves the five-membered Ge4Yb metallocycle with a twist conformation. The Yb-Ge and Yb-O distances are 3.104(2) and 2.475(8), 2.402(10) Angstrom.