Title : ( Two New Supramolecular Hybrids Inorganic-Organic of 12-Silicotungstic Acid Heteropolyoxometalate and Trinuclear Lanthanide Clusters: Syntheses, Structures, and Magnetic Properties )
Authors: Nahid Lotfian , Masoud Mirzaei Shahrabi , Hossein Eshtiagh Hosseini , Marta Löffler , Maria Korabik , Alireza Salimi ,
Full TextAbstract
Hydrothermal synthesis of two novel inorganic–organic hybrid assemblies, {Na[Ln(pydc-OH)(H2O)4]3}[SiW12O40]·15H2O [Ln = Nd (1) and Ln = Sm, (2); pydc-OH = 4-hydroxypyridine-2,6-dicarboxy], and their characterization is described. Structural characterizations by single-crystal X-ray diffraction reveal that these compounds are isostructural, and each consists of [SiW12O40]4– Keggin-type polyoxometalates (POMs) linked by three lanthanide ions to yield discrete trinuclear lanthanide clusters. These discrete molecules are further packed into 3D supramolecular assemblies by means of hydrogen-bonding and anion–π interactions. Both compounds exhibit remarkable thermal stability. The temperature variation in the magnetic susceptibility χm and of the χmT product and Bohr magnetons of the NdIII (1)- and SmIII (2)-based compounds are considered. The magnetic data have been interpreted relative to data presented in the literature.
Keywords
Supramolecular chemistry; Polyoxometalates; Hydrothermal synthesis; Lanthanides; Magnetic properties
@article{paperid:1042065,
author = {Lotfian, Nahid and Mirzaei Shahrabi, Masoud and Eshtiagh Hosseini, Hossein and Marta Löffler and Maria Korabik and Salimi, Alireza},
title = {Two New Supramolecular Hybrids Inorganic-Organic of 12-Silicotungstic Acid Heteropolyoxometalate and Trinuclear Lanthanide Clusters: Syntheses, Structures, and Magnetic Properties},
journal = {European Journal of Inorganic Chemistry},
year = {2014},
volume = {2014},
month = {November},
issn = {1434-1948},
pages = {5908--5915},
numpages = {7},
keywords = {Supramolecular chemistry;
Polyoxometalates;
Hydrothermal synthesis;
Lanthanides;
Magnetic properties},
}
%0 Journal Article
%T Two New Supramolecular Hybrids Inorganic-Organic of 12-Silicotungstic Acid Heteropolyoxometalate and Trinuclear Lanthanide Clusters: Syntheses, Structures, and Magnetic Properties
%A Lotfian, Nahid
%A Mirzaei Shahrabi, Masoud
%A Eshtiagh Hosseini, Hossein
%A Marta Löffler
%A Maria Korabik
%A Salimi, Alireza
%J European Journal of Inorganic Chemistry
%@ 1434-1948
%D 2014
