Excited-State Mixed-Valence Distortions in a Diisopropyl Diphenyl Hydrazine Cation
作者:Jenny V. Lockard、Jeffrey I. Zink、Yun Luo、Michael N. Weaver、Asgeir E. Konradsson、Joseph W. Fowble、Stephen F. Nelsen
DOI:10.1021/ja0609093
日期:2006.12.1
employed to interpret the absorption spectrum and coupling. ResonanceRaman spectroscopy is used to determine the excited-state distortions. The frequencies of the enhanced modes from the resonanceRaman spectra are used together with the time-dependent theory of spectroscopy to fit the two observed absorption bands that have resolved vibronic structure. The origins of the vibronic structure and relationships
selective CH activation when transformed into a cationic species. The second CH activation is blocked due to the absence of a second aryl moiety at nitrogen. The Lewis acidity of neutral bismuth amides is compared with that of cationic species “[Bi(aryl)(amide)(L)n]+” and “[Bi(aryl)2(L)n]+” based on the (modified) Gutmann–Beckett method (L = tetrahydrofuran or pyridine). The heteroaromatic character of [B