Lanthanide complexes with pyridine-2,6-dicarboxylic acid: synthesis, crystal structure, thermal and magnetic properties of [LnPDA)2(PDAH2)] · (DMAH2)2(DMAH0.5)2

Crystallographic structure and crystal field parameters in the [AnIV(DPA)3]2− series, An = Th, U, Np, Pu

“…The six oxygen and the three nitrogen atoms form a distorted tricapped trigonal prism with the capped positions occupied by the nitrogen atoms (see Figure 2). The same arrangement has been found in the Ln III series [77,78,79,80,81,82,83,84,85,86,87,88,89,90,91], An III series [5,6,92] and Ce IV [85,93] as well as in U IV crystals [9].…”

Synthesis, Crystal Structure, Thermal, Magnetic Properties and DFT Computations of a Ytterbium(III) Complex Derived from Pyridine-2,6-Dicarboxylic Acid

“…The DMAH molecules are generated in situ from hydrolysis of N,N-dimethylformamide [21]. The Yb(III) ion in 1 is coordinated by three dianionic We have earlier reported the crystal structures of a similar series of the Pydc-based coordination polymers with the formula [Ln(Pydc) 3 ](DMAH 2 ).H(DMAH) 2 (Ln = Ce, Ho, Nd, Sm) [21]. Their structural analysis reveals that their metal coordination sphere is quite identical to that of compound 1.…”

“…The DMAH molecules in 1 were generated in situ from hydrolysis of N,N-dimethylformamide [21]. In the IR spectrum of complex 1, a broad peak in the region of 3419-3253 cm −1 was observed, which was assigned to the O-H and N-H stretching vibrations of water molecules and dimethylaminium ions respectively.…”

“…Considering the possible role of lanthanide complexes for material applications, we have earlier reported the crystal structures of several lanthanide complexes with pyridine-2,6-dicarboxylic acid (H 2 Pydc) ligand [9,[20][21][22][23]. In these complexes the lanthanide atoms exhibit a nine-coordination environment, while H 2 Pydc coordinates in neutral, monoanionic and dianionic forms.…”

Synthesis, crystal structure and magnetic properties of an octanuclear cerium(III) complex of pyridine-2,6-dicarboxylate

“…Among the multidentate ligands, pyridine-2,6-dicarboxylic acid (H 2 Pydc) is widely applied as a bridging ligand to construct lanthanide-based metal-organic frameworks [21][22][23][24][25]. We were interested to explore the use of H 2 Pydc in developing supramolecular structures with different lanthanide(III) ions under appropriate conditions [26][27][28]. As an extension of such studies, we report here the synthesis, crystal structure, and magnetic properties of an octanuclear cerium(III) complex of Pydc.…”