Lanthanide(III) complexes with phosphoryl containing 1,8-naphthyridine: Crystal structures and vibrational spectraстатья
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Дата последнего поиска статьи во внешних источниках: 7 декабря 2017 г.
Аннотация:The complexes of 2-[2-(diphenylphosphoryl)prop-2-yl]-1,8-naphthyridine (L) with lanthanide nitratesLn(NO3)3 (Ln = Nd, Eu, Lu) were investigated to elucidate the coordination ability of a novel type of potentiallytridentate ligands – phosphorylalkyl substituted naphthyridines. The X-ray crystal structures of[NdL3]3+ 3(NO3) MeCN (1), [EuL3]3+ 3(NO3) [Eu(NO3)3 4H2O] MeCN (2), and [LuL3]3+ 3(NO3) [Lu(NO3)3 3H2O] 2 MeCN 0.5 H2O (3) are reported together with their IR and Raman spectra. All the compounds studied contain isostructural [LnL3]3+ cations and three NO3 counterions. Coordination of each L appears to be O,N,N tridentate-cyclic and coordination number of Ln is nine. Vibrational spectra of 1–3 are also compared with that of free ligand and model compounds.