Hydrothermal Synthesis of the First Vanadomolybdenum Polyoxocation with a “Metal-Bonded” Spherical Framework

Abstract

The heteropoly compound [(V(V)O(4))Mo(VI)(12)O(36)(V(IV)O)(6)][(OH)(9)].11H(2)O (1), synthesized by hydrothermal method under weak basic conditions, represents the first mixed Mo/V six-capped Keggin structural derivative with a spherical skeleton, and the first transition metal polyoxocation. The successful synthesis of 1 demonstrates that basic hydrothermal synthesis might be a power synthetic route to the isolation of more new polycationic metal-oxo clusters.

Bi-antimony capped Keggin polyoxometalate modified with Cu-ligand fragment

“…The introduction of the hydrothermal technique for the synthesis of POMbased compounds has been proved as a successful strategy and has also led to the appearance of various inorganic capped Keggin-type derivatives. Up to now, a number of Keggin clusters with the capping groups have been reported, such as bi-, tri-, tetra-and hexa-capped structures [5][6][7][8][9][10][11]. The capping groups in these derivatives are mainly restricted to high oxidation states metal (V) and divalent transition metals (Ni and Cu).…”

Hydrothermal syntheses and structural characterizations of three polyoxomolybdates frameworks linked by M(HL)2 units (M = Co, Ni, Zn; L = 3-(2-pyridyl)pyrazole)

“…The design and synthesis of polyoxometalate clusters has attracted continuous research interest not only because of their appealing structural and topological novelty, but also due to their unusual optical, electronic, magnetic, and catalytic properties, as well as their potential medical application [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Two new transition-metal complexes (TMCs)-templated three-dimensional supramolecular networks based on tungstovanadophosphates

“…The study of heteropolyoxometalates is mainly focused on molybdovanadate system [29][30][31][32]. Up to now, owing to the kinetic sluggishness of tungsten relative to molybdates and vanadates, less attention has been paid to the tungstovanadate heteropoly complexes [33][34][35][36][37][38][39][40].…”