期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 37, 页码 15468-15475出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja305712m
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资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division [DE-FG02-09ER16067]
- NSF [DMR 1121053]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1040541] Funding Source: National Science Foundation
Addition of 1 equiv of E (E = 0.125 S-g, Se, Te) to U(H2C=PPh3)(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*Co-2][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.
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