![]() ![]() More facile removal of a ligand from 3+ by CID does not necessarily contradict stronger Am 3+–L binding, as inferred from solution behavior. In accordance with the CID results, both the rate determining transition state barrier and the net energy are lower for 3+ versus 3+ and for both product isomers, 2+ and 2+. To understand the disparity, more » density functional theory was employed to compute potential energy surfaces for two possible CID processes, for M = La and Am. Although solution affinities indicate stronger binding of BTPs toward Am 3+ versus Ln 3+, the observed CID process is contrastingly more facile for M = Am versus Ln. Collision-induced dissociation (CID) of 3+ in the presence of H 2O yielded a protonated ligand + and hydroxide 2+ or hydrate 2+, where (L–H) - is a deprotonated ligand. Here in this paper, electrospray ionization was used to generate gas-phase complexes 3+, where M = La, Lu, or Am and L is EtBTP 2,6-bis(5,6-diethyl-1,2,4-triazin-3-yl)-pyridine. ![]() This paper reports a new synthesis of pure, microcrystalline Am(OH),īis-triazinyl pyridines (BTPs) exhibit solution selectivity for trivalent americium over lanthanides (Ln), the origins of which remain uncertain. ![]()
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