1027328-76-2Relevant academic research and scientific papers
Structural and spectroscopic characterization of a charge-separated uranium benzophenone ketyl radical complex
Lam, Oanh P.,Anthon, Christian,Heinemann, Frank W.,O'Connor, Joseph M.,Meyer, Karsten
, p. 6567 - 6576 (2008)
The reaction of [((t-BuArO)3tacn)UIII] (1) with 4,4′-di-tert-butylbenzophenone affords a unique isolable U(IV) ketyl radical species [((t-BuArO)3tacn)UIV (OC?t-BuPh2)] (2) supported by XRD data, magnetization measurements, and DFT calculations. Isolation and full characterization of the corresponding diphenyl methoxide complex [(( t-BuArO)3tacn)UIV(OCTt-BuPh 2)] (3) is also presented. The one-electron reduction of benzophenone by [((AdArO)3tacn)UIII] (4) leads to a purple U(IV) ketyl radical intermediate [((AdArO)3tacn)U IV(OC?Ph2)] (5). This species is highly reactive, and attempts at isolation were unsuccessful and resulted in methoxide complex [((AdArO)3tacn)UIV(OCHPh2)] (6) from H abstraction and dinuclear paracoupled complex [((AdArO) 3tacn)UIV(OCPhPh-CPh2O)UIV(( AdArO)3tacn)] (7).
