Spectra and bonding for copper(II)-aminoalcohol complexes—I

Photocatalytic hydrogen generation in the presence of ethanolamines over Pt/ZnIn2S4 under visible light irradiation

“…5 shows the infrared spectra (IR) arising both from the adsorbed EA (A), di-EA (B) and tri-EA (C) species on ZnIn 2 S 4 and from the 0.10 mol L −1 aqueous solutions. Brannon et al [40] have investigated the IR spectra of their neat compounds and complexes. Their (C N), (C C) and (C O) bands occur in the region of 1000-1200 cm −1 .…”

A General Solution for the 2‐Pyridyl Problem

“…In pathway 1, DEA reacts with the conformationally rigid 1 a in a novel transligation reaction to form a conformationally flexible and thereby more reactive DEA adduct 5 , 1d which in turn transmetalates with Cu(OAc) 2 to form 6 . In pathway 2, DEA alternatively reacts with Cu(OAc) 2 to yield a Cu(DEA) n complex 24 , 25 and KOAc. The released KOAc then reacts with 1 a to generate a reactive 2-pyridyl boronate intermediate 7 (X=acetate 26 or other ion), which in turn transmetalates with Cu(DEA) n to form 6 .…”

Thermal decomposition of cerium triethanolamine complexes

“…is not fixed; small variations of the synthesis time or temperature results in a different amount of ceria. Indeed, EA and TG measurements of different batches show little deviations on the composition of the mixture while a perfect reproducibility was always obtained for Ce−TEA−2.The FTIR analysis of Ce−TEA−1 shows that the absorption bands related to coordinated NO3 are absent and only the absorption band of non-coordinated NO3 is present (1413 cm −1 )[31]. Its shift to lower wavenumbers indicates that it is weakly bonded to the cation.…”