A Complete Family of Terminal Uranium Chalcogenides, [U(E)(N{SiMe3}2)3]− (E = O, S, Se, Te)
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https://figshare.com/articles/dataset/A_Complete_Family_of_Terminal_Uranium_Chalcogenides_U_E_N_SiMe_sub_3_sub_sub_2_sub_sub_3_sub_sup_sup_E_O_S_Se_Te_/2485531
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Addition of 1 equiv of E (E = 0.125 S8, Se, Te) to U(H2CPPh3)(NR2)3 (R = SiMe3) (1) in Et2O results in generation of the terminal chalcogenide complexes, [Ph3PCH3][U(E)(NR2)3] (E = S, 2; Se, 3; Te, 4; R = SiMe3), in modest yield. Complexes 2–4 represent extremely rare examples of terminal uranium monochalcogenides. Synthesis of the oxo analogue, [Cp*2Co][U(O)(NR2)3] (5), was achieved by reduction of [U(O)(NR2)3] with Cp*2Co. All complexes were fully characterized, including analysis by X-ray crystallography. In the solid state, complexes 2–5 feature short U–E bond lengths, suggestive of actinide–ligand multiple bonding.
创建时间：
2016-02-20
