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Ca2+-driven self-assemby of POMs into 2D/3D coordination polymers.
Autorzy
Rok wydania
2017
Czasopismo
European Journal of Inorganic Chemistry
Strony
3525-3532
DOI
10.1002/ejic.201700400
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A number of new POM-based coordination polymers, including two-dimensional (NH4)4{[Ca(H2O)5][P2Mo5O23]}·3H2O (4) (bpy = 2,2′-bipyridine), and a rare anion-based (NH4)5[CoIII(bpy)3]{[Ca(H2O)4]2[Ca(H2O)]6[PMo6O22(PO4)3]2}·17H2O (3), as well as three-dimensional (NH4)8[CoIII(bpy)3]2{[Ca(H2O)3]2[P2Mo5O23]3}·21H2O (2) have been prepared using a facile wet-chemistry approach and have been characterized by X-ray diffraction analysis and a variety of physicochemical methods. The self-assembly in the above compounds has been rendered by the use of Ca2+ ions as a suitable linker in the network formation. Moreover, Ca2+ions were also involved in the formation of an extremely rare type of POM anion {[Ca(H2O)]6[PMo6O22(PO4)3]2}12–. The synthesis attempt without the alkaline-earth metal led, predictably, to the formation of the discrete Strandberg-based compound (NH4)3[CoIII(bpy)3][P2Mo5O23]·14H2O (1). Thus, the present work reports on a suitable strategy to influence complex POM-based systems towards self-organization into multidimensional structures of higher hierarchy. The obtained compounds have been shown to possess electrocatalytic activity towards the reduction of iodates(V).
Słowa kluczowe
Polyoxometalates, coordination polymers, electrochemistry, electrocatalytic activity, calcium
Adres publiczny
http://dx.doi.org/10.1002/ejic.201700400
Strona internetowa wydawcy
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