A cation hydration study of diamagnetic Lu3+, paramagnetic Er3+ and Yb3+, and, in a preliminary manner, paramagnetic Pr3+, Nd3+, Tb3+, Dy3+, Ho3+, and Tm3+ has been carried out by a low-temperature, direct pmr technique. At temperatures ranging from -60' (Dy3+ and Tm3+) to -120" (Pr3+), proton and ligand exchange are slow enough to permit the observation of separate signals for bulk and coordinated water molecules. In several cases, when signal broadening prevented the observation of a coordinated water peak …
scite is a Brooklyn-based startup that helps researchers better discover and evaluate scientific articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by researchers from dozens of countries and is funded in part by the National Science Foundation and the National Institute of Drug Abuse of the National Institutes of Health.