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The endohedral plumbaspherene cluster anion[Rh@Pb_(12)]~(3-) was synthesized by the reaction of K_4Pb_9 with Rh(PPh_3)_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@Pb_(12)]~(3-) represents the first structurally characterized plumbaspherene Pb_(12) cluster with I_h point symmetry encapsulating a group 9 element in a spherical tetrel deltahedron.And the discovery of anion[Rh@Pb_(12)]~(3-) also provides direct proof for previous reports on the observation of[M@Pb_(12)]~(x±)(clusters in mass spectrometric experiments proved by quantum-chemical calculations).DFT computations indicate that the icosahedral cluster anion[Rh@Pb_(12)]~(3-) is isostructural and isoelectronic with[Ir@Sn_(12)]~(3-).
The endohedral plumbaspherene cluster anion [Rh @ Pb_ (12)] ~ (3-) was synthesized by the reaction of K_4Pb_9 with Rh (PPh_3) _3Cl in ethylenediamine (en) solution in the presence of 18- , 7,10,13,16-hexaoxacyclooctadecane), and characterized by single-crystal X-ray diffraction and energy-dispersive X-ray (EDX) analysis. The novel zintl cluster [ -) represents the first structurally characterized plumbaspherene Pb_ (12) cluster with I_h point symmetry encapsulating a group 9 element in a spherical tetrel deltahedron. And the discovery of anion [Rh @ Pb_ (12)] ~ (3-) also provides direct proof For previous reports on the observation of [M @ Pb_ (12)] ~ (x ±) (clusters in mass spectrometric experiments proved by quantum-chemical calculations) .DFT computations indicate that the icosahedral cluster anion [Rh @ Pb_ (12) ~ (3-) is isostructural and isoelectronic with [Ir @ Sn_ (12)] ~ (3-).