Building on that development, the Georgia team made the Si2O3 and Si2O4 complexes (shown) by oxidizing the disilicon complex with N2O or with O2 (Nat. Chem. 2015, DOI: 10.1038/nchem.2234). The researchers were motivated to try the reactions after using the NHC-stabilization approach a year ago to prepare diphosphorus tetroxide, P2O4, a long-sought phosphorus analog of N2O4, by adding O2 across a diphosphorus bond (C&EN, Jan. 6, 2014, page 21).
by Stephen K. Ritter |
April 23, 2015