Citation: WANG Yi, WANG Lu-Lu, RUAN Hua-Peng, LUO Ben-Long, SANG Rui-Li, XU Li. Synthesis and Characterization of the Endohedral Plumbaspherene [Rh@Pb₁₂]^3-[J]. Chinese Journal of Structural Chemistry, ;2015, 34(8): 1253-1258. doi: 10.14102/j.cnki.0254-5861.2011-0663 shu

Synthesis and Characterization of the Endohedral Plumbaspherene [Rh@Pb₁₂]^3-

WANG Yi ^a,b ,
WANG Lu-Lu ^a,b ,
RUAN Hua-Peng ^a,b ,
LUO Ben-Long ^a,b ,
SANG Rui-Li ^a ,
XU Li ^a

a.
a. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
b.
b. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China

Received Date: 2 February 2015
Available Online: 25 May 2015
Fund Project: This project was supported by the National Natural Science Foundation of China (No. 21473200) (No. 21473200)

The endohedral plumbaspherene cluster anion [Rh@Pb₁₂]^3- was synthesized by the reaction of K₄Pb₉ with Rh(PPh₃)₃Cl in ethylenediamine (en) solution in the presence of 18-crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane), and characterized by single-crystal X-ray diffraction and energy-dispersive X-ray (EDX) analysis. The novel zintl ion cluster [Rh@Pb₁₂]^3- represents the first structurally characterized plumbaspherene Pb₁₂ cluster with I_h point symmetry encapsulating a group 9 element in a spherical tetrel deltahedron. And the discovery of anion [Rh@Pb₁₂]^3- also provides direct proof for previous reports on the observation of [M@Pb₁₂]^x± (clusters in mass spectrometric experiments proved by quantum-chemical calculations). DFT computations indicate that the icosahedral cluster anion [Rh@Pb₁₂]^3- is isostructural and isoelectronic with [Ir@Sn₁₂]^3-.
- zintl ions,
- plumbaspherene,
- encapsulation,
- group 9 element
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