Two different coordination modes of the Schiff base derived from ortho-vanillin and 2-(2-aminomethyl)pyridine in a mononuclear uranyl complex
Sokratis T. Tsantis,
Zoi G. Lada,
Demetrios I. Tzimopoulos,
Vlasoula Bekiari,
Vassilis Psycharis,
Catherine P. Raptopoulou,
Spyros P. Perlepes
Affiliations
Sokratis T. Tsantis
Department of Chemistry, University of Patras, 26504 Patras, Greece; Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (Forth/ICE-HT), Platani, P.O. Box 1414, 26504 Patras, Greece; Corresponding author.
Zoi G. Lada
Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (Forth/ICE-HT), Platani, P.O. Box 1414, 26504 Patras, Greece
Demetrios I. Tzimopoulos
Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Vlasoula Bekiari
Department of Crop Science, University of Patras, 30200 Messolonghi, Greece
Vassilis Psycharis
Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi Attikis, Greece
Catherine P. Raptopoulou
Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15310 Aghia Paraskevi Attikis, Greece; Corresponding author.
Spyros P. Perlepes
Department of Chemistry, University of Patras, 26504 Patras, Greece; Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (Forth/ICE-HT), Platani, P.O. Box 1414, 26504 Patras, Greece; Corresponding author.
This work describes the reaction of the potentially tetradentate Schiff-base ligand N-(2-pyridylmethy)-3-methoxysalicylaldimine (HL) with UO2(O2CMe)2·2H2O and UO2(NO3)2· 6H2O in MeOH in the absence or presence of an external base, respectively. The product from these reactions is the mononuclear complex [UO2(L)2] (1). Its structure has been determined by single-crystal, X-ray crystallography. The anionic ligand adopts two different coordination modes (1.1011, 1.1010; Harris notation) in the complex. The new compound was fully characterized by solid-state (IR, Raman and Photoluminescence spectroscopies) and solution (UV-Vis and 1H NMR spectra, conductivity measurements) techniques.
