Lanthanide(III) complexes with phosphoryl containing 1,8-naphthyridine: Crystal structures and vibrational spectra |
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| Authors: | Anna G Matveeva Pavel S Lemport Larissa A Leites Rinat R Aysin Anna V Vologzhanina Zoya A Starikova Margarita P Passechnik Edward E Nifant’ev |
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| Institution: | Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow 119991, Russia |
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| Abstract: | The complexes of 2-2-(diphenylphosphoryl)prop-2-yl]-1,8-naphthyridine (L) with lanthanide nitrates Ln(NO3)3 (Ln = Nd, Eu, Lu) were investigated to elucidate the coordination ability of a novel type of potentially tridentate 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. |
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| Keywords: | Lanthanide(III) complexes Phosphoryl containing 1 8-naphthyridine O N N-ligand X-ray diffraction Vibrational spectroscopy |
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