Now showing items 1-4 of 4

    • Maximizing Electron Exchange in a [Fe3] Cluster 

      Hernández Sánchez, Raúl; Bartholomew, Amymarie Kathryn; Powers, Tamara; Ménard, Gabriel; Betley, Theodore A (American Chemical Society (ACS), 2016)
      The one-electron reduction of (tbsL)Fe3(thf)1 furnishes [M][(tbsL)Fe3] ([M]+ = [(18-C-6)K(thf)2]+ (1, 76%) or [(crypt-222)K]+ (2, 54%)). Upon reduction, the ligand tbsL6– rearranges around the triiron core to adopt an ...
    • Multi-Electron Reduction of Small Molecules by Triiron Reaction Sites 

      Powers, Tamara Michelle (2013-10-15)
      The observation that multi-electron activation of small molecule substrates occurs at polynuclear reaction sites, common to both metalloenzymes and heterogeneous catalysts, has led to the articulation of the polynuclear ...
    • Synthesis of Open-Shell, Bimetallic Mn/Fe Trinuclear Clusters 

      Powers, Tamara Michelle; Gu, Nina Xiao; Fout, Alison R.; Baldwin, Anne M.; Hernandez sanchez, Raul; Alfonso, Denise Marie; Chen, Yu-Sheng; Zheng, Shao-Liang; Betley, Theodore A (American Chemical Society (ACS), 2013)
      Concomitant deprotonation and metalation of hexadentate ligand platform tbsLH6 (tbsLH6 = 1,3,5-C6H9(NHC6H4-o-NHSiMe2tBu)3) with divalent transition metal starting materials Fe2(Mes)4 (Mes = mesityl) or Mn3(Mes)6 in the ...
    • Testing the Polynuclear Hypothesis: Multielectron Reduction of Small Molecules by Triiron Reaction Sites 

      Powers, Tamara Michelle; Betley, Theodore A (American Chemical Society (ACS), 2013)
      High-spin trinuclear iron complex (tbsL)Fe3(thf) ([tbsL]6– = [1,3,5-C6H9(NC6H4-o-NSitBuMe2)3]6–) (S = 6) facilitates 2 and 4e– reduction of NxHy type substrates to yield imido and nitrido products. Reaction of hydrazine ...