10.1139/V08-183
The research presents a comprehensive study on the syntheses, X-ray structures, and redox behavior of group 14 bis-boraamidinates, specifically focusing on the complexes M[PhB(m-N-t-Bu)2]2 (where M = Ge, Sn) and Li2M[PhB(m-N-t-Bu)2]2 (where M = Sn, Pb). The purpose of the study was to investigate the redox transformations of these complexes and to explore the possibility of accessing cation radicals {M[PhB(m-N-t-Bu)2]2}+ (M = Si, Ge, Sn) through mild oxidation of the corresponding neutral precursors. The researchers used a variety of chemicals in their experiments, including PhBCl2, GeCl4, SnCl4, SnCl2, PbI2, t-BuNH2, SO2Cl2, and LiN(H)-tBu, among others. The conclusions drawn from the research were that the germanium complex was inert towards oxidizing agents, while the tin complex could be oxidized to form a thermally unstable blue radical cation. The study also characterized the structural and fluctional behavior of the synthesized heterotrimetallic complexes, revealing novel polycyclic arrangements and unique bonding modes within these complexes. The findings provide valuable insights into the electronic structures and potential applications of these group 14 complexes, highlighting the differences in their redox properties compared to their isoelectronic group 13 counterparts.