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- W4244856116 endingPage "7178" @default.
- W4244856116 startingPage "7174" @default.
- W4244856116 abstract "Reaction of [U(TrenTIPS)] [1, TrenTIPS=N(CH2CH2NSiiPr3)3] with 0.25 equivalents of P4 reproducibly affords the unprecedented actinide inverted sandwich cyclo-P5 complex [{U(TrenTIPS)}2(μ-η5:η5-cyclo-P5)] (2). All prior examples of cyclo-P5 are stabilized by d-block metals, so 2 shows that cyclo-P5 does not require d-block ions to be prepared. Although cyclo-P5 is isolobal to cyclopentadienyl, which usually bonds to metals via σ- and π-interactions with minimal δ-bonding, theoretical calculations suggest the principal bonding in the U(P5)U unit is polarized δ-bonding. Surprisingly, the characterization data are overall consistent with charge transfer from uranium to the cyclo-P5 unit to give a cyclo-P5 charge state that approximates to a dianionic formulation. This is ascribed to the larger size and superior acceptor character of cyclo-P5 compared to cyclopentadienyl, the strongly reducing nature of uranium(III), and the availability of uranium δ-symmetry 5f orbitals." @default.
- W4244856116 created "2022-05-12" @default.
- W4244856116 creator A5050699980 @default.
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- W4244856116 creator A5086963679 @default.
- W4244856116 creator A5091424152 @default.
- W4244856116 date "2015-04-27" @default.
- W4244856116 modified "2023-09-30" @default.
- W4244856116 title "An Inverted-Sandwich Diuranium μ-η<sup>5</sup>:η<sup>5</sup>-Cyclo-P<sub>5</sub>Complex Supported by U-P<sub>5</sub>δ-Bonding" @default.
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