Two samarium(iii) complexes with tunable fluorescence from in situ reactions of 2-ethoxy-6-((pyridin-2-ylmethylimino)methyl)phenol with Sm3+ ion†
Abstract
Two samarium(III) complexes showing different luminescent intensity, namely Sm(HL1)2·NO3·2H2O (1) and [SmL2(C2H5OH)2·NO3]2 (2), were constructed via the solvothermal in situ lanthanide metal–ligand reactions of 2-ethoxy-6-((pyridin-2-ylmethylimino)-methyl)phenol (HL) from pyridin-2-ylmethanamine and 3-ethoxy-2-hydroxybenzaldehyde with Sm3+ ion at different temperatures, in which H2L1 resulted from C–C coupling dimerization of HL, while H2L2 from C–C coupling of HL and pyridin-2-ylmethanamine.