Main Group Redox Catalysis: Reversible P<sup>III</sup>/P<sup>V</sup> Redox Cycling at a Phosphorus Platform
作者:Nicole L. Dunn、Minji Ha、Alexander T. Radosevich
DOI:10.1021/ja302963p
日期:2012.7.18
two-electron redox cycling (P(III)/P(V)) enabling its use as catalyst for a transfer hydrogenation reaction. The trivalent phosphorus compound activates ammonia-borane to furnish a 10-P-5 dihydridophosphorane, which in turn is shown to transfer hydrogen cleanly to azobenzene, yielding diphenylhydrazine and regenerating the initial trivalent phosphorus species. This result constitutes a rareexample of two-electron
A Ligand Protonation Series in Aluminum(III) Complexes of Tridentate Bis(enol)amine Ligand
作者:Nathan A. Phan、James C. Fettinger、Louise A. Berben
DOI:10.1021/acs.organomet.8b00628
日期:2018.12.10
A series of aluminum(III) complexes supported by the tridentate bis(enol)amine ligand (ONO, 1,1′-azanediylbis(3,3-dimethylbutan-2-one)) in two protonation states have been synthesized and characterized structurally. Reaction of AlCl3 with singly deprotonated H2ONO– afforded pseudo-octahedral [(H2ONO–)2Al][AlCl4] (1). AlCl3 was also reacted with doubly deprotonated HONO2– to afford the five-coordinate
Novel Hypervalent Complexes of Main-Group Metals by Intramolecular Ligand?Metal Electron Transfer
作者:Matthias Driess、Nicoleta Dona、Klaus Merz
DOI:10.1002/chem.200400807
日期:2004.12.3
initial coordination and intramolecular L-->M two-electron transfer and of stabilizing main-group elements in unusual low oxidation states. This is impressively shown by the synthesis and structuralcharacterization of the novel Ge and Sn complexes 4-6 by redox reactions of lithiated 1 with the corresponding metal halides GeCl4 and MCl2 (M=Ge, Sn). Surprisingly, conversion of tris-lithiated 1 with GeCl4