第9族POP-ピンサーシリル錯体：ロジウムとイリジウムの比較研究
This study examines the synthesis and reactivity of rhodium and iridium silyl complexes bearing a xanthene-based POP-type pincer ligand. Reactions with diphenylsilane and triethylsilane yielded saturated d6 complexes for both metals, with a chloride/hydride positional exchange process identified for certain derivatives. The rhodium system produced a square-planar d8 silyl compound, while the analogous iridium complex formed a stable dihydride species. A cationic five-coordinate rhodium complex, generated through a silylene intermediate, functioned as an effective catalyst precursor for the monoalcoholysis of diphenylsilane across a broad range of alcohols, achieving turnover frequencies between 4,000 and 76,500 h⁻¹ at 50% conversion. X-ray crystallographic structures of six key complexes are also reported.
The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).
See also:
https://h2-papers.org/en/papers/24088172