Hydrothermal synthesis, crystal structure, and luminescence of lanthanide(III) coordination polymers with tetrafluorosuccinate and 1,10-phenanthroline

Abstract Three new coordination polymers [Nd 2 (TFSA) 3 (phen) 2 ] n ( 1 ) and {[Ln(TFSA)(phen)(H 2 O) 4 ]·0.5(TFSA)·2(phen) H 2 O} n (Ln = Sm, 2 and Dy, 3 ; TFSA = tetrafluorosuccinate; phen = 1,10-phenanthroline) were synthesized and characterized using X-ray structure analyses and luminescence spectroscopy. The 1 has a 2-D network structure through TFSA ligands via bridging/chelating-bridging pentadentate and bridging/bridging tetradentate coordination modes. The 2 and 3 have novel 1-D chain structures, in which adjacent Ln(III) ions are linked though the single μ 2 -bridging TFSA ligands as linkages. The emission spectrum in the NIR of 1 corresponds to the 4 F 3/2  →  4 I 9/2 , 11/2 , 13/2 transitions of Nd(III) ion. The emission spectra of 2 and 3 indicate the typical luminescence characteristics of the Sm(III) and Dy(III) ions, respectively.