Seven-, eight-, and ten-coordinated cerium(III) with highly connective pyridine-2,4,6-tricarboxylate, oxalate, and glycine ligands

Khan, Islam UllahSharif, ShahzadSahin, Onur2025-03-232025-03-2320130095-89721029-0389https://doi.org/10.1080/00958972.2013.825719https://hdl.handle.net/11486/5873Two new 3-D Ce(III) coordination polymers, [Ce-1.3(PTA)(2)(Oxa)(2)(Gly)(H2O)(2)]center dot(Gly)4H(2)O (1) and [Ce-2.6(PTA)(4)(Oxa)(2)(H2O)(10)]center dot(MeOH)7H(2)O (2) (PTA=2,4,6-pyridinetricarboxylate, oxa=oxalate and Gly=glycine), were synthesized. The oxalate in 1 and 2, generated in situ from the cleavage and chemical rearrangement of PTAH(3), assembled into mixed-ligand networks to generate 3-D frameworks. Single crystal analysis reveals that in both complexes, Ce(III) shows coordination numbers of 7 and 10 in 1 and 8 and 10 in 2. PTA adopts four kinds of coordination modes. These complexes were further characterized using elemental analysis, FTIR spectroscopy and thermogravimetric analysis.eninfo:eu-repo/semantics/closedAccessPyridine-246-tricarboxylic acidCe(III) polymerMixed ligandOxalateGlycineSeven-, eight-, and ten-coordinated cerium(III) with highly connective pyridine-2,4,6-tricarboxylate, oxalate, and glycine ligandsArticle66173113312510.1080/00958972.2013.8257192-s2.0-84883528450Q3WOS:000323312600015Q3