Charge and Configuration Evolution of Intermetalloid Clusters [(Ge9)2M]q-(M/q = Ge/4, In/5, Cd/6, and K/7)
Charge and Configuration Evolution of Intermetalloid Clusters [(Ge9)2M]q-(M/q = Ge/4, In/5, Cd/6, and K/7)
复制标题
扩展的 MoIV3-多金属氧酸盐:1D-[MoIV6MoVI4Ge2ZnO31py9 (H2O)]4- 和 2D-[MoIV3MoVI9Zn6P7O56py8](py = 吡啶)
DOI:
10.1021/acs.organomet.1c00697
复制
发表时间:
2022-02-28
期刊:
影响因子:
2.8
通讯作者:
Xu, Li
中科院分区:
文献类型:
--
作者:
Lin, Lifang;Wang, Yi;Xu, Li
The intermetalloid cluster syn-[(eta(3)-Ge-9)(2){Ge(Ni(CO)(2))(3)}](4-) ([1](4-)) was prepared from the oxidative substitution reaction of [Ge-9](2-) and Ni(CO)(2) (PPh3)(2) in pyridine of 2,2,2-crypt. Solution reactions of the Zintl phases KxMGe (M/x = In/1 and Cd/2) in ethylenediamine (en) of 18-crown-6 yielded syn-[(eta(3)-Ge-9)(2)In](5-) ([2](5-)) and anti-[(eta Ge-3(9))(2)Cd](6-) ([3](6-)). The X-ray crystallographic analyses reveal their metallocene-like structure with the central atoms Ge/Ni/Cd sandwiched by a couple of tricapped trigonal prismatic [Ge-9] units in a staggered (anti-) or eclipsed (syn-) arrangement. The central Ge in [1](4-) is further triangularly bonded to three Ni(CO)(2) to form the planar Ge(Ni(CO)(2))(3) fragment. [2](5-) bears a high crystallographic C-3h symmetry accounting for the eclipsed conformation. [3](6-) is a new family member of [(eta(3)-Ge-9)(2)M], which is interconnected by [K2Ge9](2-) to form the center dot[3]center dot[K2Ge9]center dot [3]center dot infinite chain. The cluster charge of [1](4-)/[2](5-)/[3]6(- )has been found to solely depend on the outmost shell electrons of the central atoms to achieve a sum of eight electrons or octet rule. The DFT theoretical calculations have been carried out to explain the influence of the cluster charge on the geometric parameters of the [Ge-9] units.