@article { author = {Derakhshanrad, Shadi and Mirzaei, Masoud and Mague, Joel T.}, title = {Surface-grafted Europium and Erbium Complexes of the 12-Tungstosilicate Heteropolyoxometalate: A Synthetic and Structural Investigations}, journal = {Inorganic Chemistry Research}, volume = {3}, number = {1}, pages = {40-49}, year = {2019}, publisher = {Iranian Chemical Society}, issn = {2538-1865}, eissn = {2538-1865}, doi = {10.22036/icr.2019.194182.1052}, abstract = {The hydrothermal synthesis of two new inorganic-organic hybrid materials in which PDA (PDA = 1,10-phenanthroline-2,9-dicarboxylate) is connected to a well-defined Keggin-type polyoxometalate anion (POM) and a Ln(III) cation (POM = [SiW12O40]4−; Ln = Eu3+ (1), Er3+ (2)), are reported. These hybrids are characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. Single-crystal X-ray analysis reveals that both compounds have been assembled by hydrogen bonding and anion-π interactions among POM, PDA and lattice water units into a three-dimensional (3D) supramolecular structure. Compound 1 is composed of two different cationic layers of Eu(III) clusters with the POMs located in cavities that are created by the Eu-PDA groups. Compound 2 consists of [SiW12O40]4– Keggin-type POMs, where a single {W3O13} triad is decorated by a trinuclear Er(III)-complex.}, keywords = {Polyoxometalate,Phenanthroline,Lanthanoid,Inorganic-organic hybrid,X-ray}, url = {https://www.inorgchemres.org/article_91159.html}, eprint = {https://www.inorgchemres.org/article_91159_12b7db2b7b5fd63e870368c6214c2d3b.pdf} }