Abstract
Reaction of [U(Tren(TIPS))(THF)][BPh4] (1; Tren(TIPS)=N{CH2CH2NSi(iPr)(3)}(3)) with NaPH2 afforded the novel f-block terminal parent phosphide complex [U(Tren(TIPS))(PH2)] (2; U-P=2.883(2)angstrom). Treatment of 2 with one equivalent of KCH2C6H5 and two equivalents of benzo-15-crown-5 ether (B15C5) afforded the unprecedented metal-stabilized terminal parent phosphinidene complex ...
Abstract
Reaction of [U(Tren(TIPS))(THF)][BPh4] (1; Tren(TIPS)=N{CH2CH2NSi(iPr)(3)}(3)) with NaPH2 afforded the novel f-block terminal parent phosphide complex [U(Tren(TIPS))(PH2)] (2; U-P=2.883(2)angstrom). Treatment of 2 with one equivalent of KCH2C6H5 and two equivalents of benzo-15-crown-5 ether (B15C5) afforded the unprecedented metal-stabilized terminal parent phosphinidene complex [U(Tren(TIPS))(PH)][K(B15C5)(2)] (4; UP=2.613(2)angstrom). DFT calculations reveal a polarized-covalent UP bond with a Mayer bond order of 1.92.
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