A New 3-D Open-Framework Zinc Borovanadate with Catalytic Potentials in α-Phenethyl Alcohol Oxidation

Abstract

A novel 3-D open-framework zinc borovanadate [Zn6(en)3][(VIVO)6(VVO)6O6(B18O36(OH)6)·(H2O)]2·14H2O (1, en = ethylenediamine) was hydrothermally obtained and structurally characterized. The framework was built from [V12B18O54(OH)6(H2O)]10− polyanion clusters bridged by Zn(en) complex fragments. The compound not only possessed a three-dimensional open-framework structure with unique plane-shaped channels, but also exhibited excellent catalytic activities for the oxidation of α-phenethyl alcohol.

Proton-Conducting Vanadoborate with New [V10B26] Clusters

“…With the deepening of research, polyoxometalates (POMs) have been applied in many fields, especially in adsorption catalysis and ion exchange. − Vanadoborates are a growing family of POMs due to their diverse structures and physicochemical properties. − It is well-known that most of the B–O–V clusters in vanadoborates consist of vanadium–oxygen polyhedra [VO x ] ( x = 4–6) and boron–oxygen polyhedra [BO x ] (x = 3, 4). − Vanadium–oxygen and boron–oxygen polyhedra are further linked via corner sharing or edge sharing to form various clusters with different vanadium to boron ratios, including [V 12 B 32 ], [V 12 B 18 ], [V 12 B 16 ], [V 10 B 28 ], [V 10 B 24 ], [V 6 B 22 ], and [V 6 B 20 ] clusters. ,− Recently, transition-metal complexes have been introduced into vanadoborate structures, where they play a structure-directing role. , However, these complexes reported previously led to the formation of the three clusters V 12 B 18 , V 10 B 28 , and V 6 B 20 and there have been no reports about the V 10 B 26 system. − Therefore, it is meaningful to develop a vanadoborate built up from the new cluster through use of a metal complex as template.…”

Non-covalent interactions in hexanuclear polyoxidometalates [VIV6B20O50H8]8−. An experimental and theoretical approach

“…Although vanadium atoms included in these systems always adopt a base square pyramid (SP) coordination geometry, borate units enrich the structural diversity since boron can adopt both tetrahedral [BO 4 ] and trigonal [BO 3 ] geometries [1,2]. Additionally, the VBO family has attracted considerable interest because of their magnetic, electronic and catalytic properties [3,4] associated with the presence of vanadium(IV) atoms (d 1 configuration). Recent studies of vanadoborates related to the conductivity of these materials show the importance of the nature of the crystalline packing and all interactions present in it [5][6][7].…”

Magnesium cations as templates for the self-assembly of supramolecular luminescent {Mg@[B18φ34–35]}-clusters

“…[11][12][13] Addition of organic (and sometimes even inorganic) templates opens a new way for the construction of supramolecular and mesoporous materials, e.g. borovanadates, 14,15 aluminoborates, 11,16,17 galloborates, 18,19 and borogermanates. 20,21 The discovery of boron-oxygen clusters, including giant polyatomic anions like borate supertetrahedra, 22,23 opens new perspectives in nanophotonics.…”