Coordination chemistry of the hexavacant tungstophosphate [H2P2W12O48]12–: synthesis and characterization of iron(iii) complexes derived from the unprecedented {P2W14O54} fragment

Abstract

Clusters which display the rare cubic Fe8 topology have been obtained by reaction of the metastable hexavacant polyoxotungstate [H2P2W12O48]12- with basic trinuclear metal acetates.

Dinuclear vanadium and tetranuclear iron complexes obtained with the open Wells–Dawson [Si2W18O66]16– tungstosilicate

“…A first example is the copper(II) complex [Cu 5 (OH) 4 (H 2 O) 2 (A-α-SiW 9 O 33 ) 2 ] 10-synthesized by Kortz [13,14] in which four copper atoms are bound to the polyanion following the first coordination mode, the fifth cation capping the cationic copper cluster {Cu 4 (OH) 4 …”

“…Polyoxometalates have attracted increasing attention as polydentate ligands in order to obtain polynuclear complexes with interesting magnetic, catalytic and electrocatalytic properties [1][2][3][4][5][6][7][8][9][10]. Polyoxotungstates are generally used owing to their great stability over a wide range of pH.…”

Synthesis, structure and luminescent property of a new hybrid solid based on Keggin anions and silver-organonitrogen fragments

“…The POM moieties observed in these complexes include classical POMs [6][7][8][9][10], newly founded POMs [11][12][13][14][15], and modified POM derivatives [16][17][18][19][20][21]. In the field of modified POMs, materials based on substituted, capped, and supported POMs become extraordinarily promising because of their changeable and controllable structures as well as their predominant properties introduced by modifying moieties [5,7,9,13].…”

“…In the field of modified POMs, materials based on substituted, capped, and supported POMs become extraordinarily promising because of their changeable and controllable structures as well as their predominant properties introduced by modifying moieties [5,7,9,13]. Recently, crystal engineering of hybrid materials is realizable through the so-called ''building-block'' concept [22][23][24][25][26][27], and the modified POMs have been widely used as functional building blocks to construct solid-state materials [18][19][20][21]. Consequently, many polymeric solids based on substituted or capped POMs have been successfully isolated hitherto [18][19][20][21][28][29][30].…”

“…Recently, crystal engineering of hybrid materials is realizable through the so-called ''building-block'' concept [22][23][24][25][26][27], and the modified POMs have been widely used as functional building blocks to construct solid-state materials [18][19][20][21]. Consequently, many polymeric solids based on substituted or capped POMs have been successfully isolated hitherto [18][19][20][21][28][29][30]. However, although hybrid solids based on supported POMs were infrequently isolated, to the best of our knowledge, only two examples of one-dimensional (1-D) structures constructed from mono-supported Dawson-type clusters and alkaline-earth metal-organic fragments were documented [31,32].…”