Keggin polyanion and copper cluster based coordination polymer towards model for complex nanosystem

Abstract

Synthesis and tuning the structure of metal-organic nanoclusters in coordination polymer by different charged polyanions ([PMo(12)O(40)](3-) and [SiMo(12)O(40)](4-)).

Unprecedented Application of Flexible Bis(pyridyl-tetrazole) Ligands To Construct Helix/Loop Subunits To Modify Polyoxometalate Anions

“…According to many reports on POM-based MOCs, we noticed that the organic ligands have side coordination donors conducive to forming helix/loop structures, such as 2,4′-bipy, , whereas those with apical coordination donors usually induce multitrack or linear metal–organic subunits, such as 4,4′-bipy . Moreover, introduction of a flexible spacer to the organic ligands with side donors is more favorable to build helix/loop subunits . In this work, we used 4-bptzb to construct POM-based MOCs first.…”

Polyoxometalate-Based Metal-Organic Framework Composites

“…Since 1929, six basic configurations of polyoxometalates have been identified: Keggin, Dawson, Anderson, Waugh, Silverton and Lindqvist [15][16][17][18][19][20][21], in this case, the more common structure is Keggin and Dawson. Polyoxometalates (POMs) with controllable shape, size, and large negative charges possess potential multiple coordination sites and the ability [22]. However, their applications are limited by their low specific surface area, low stability, the conglomeration of POM particles and high solubility in aqueous solution.…”

High-connected strategy of polyoxometalates towards model of core–shell nanostructure

“…As is known, in a single crystalline solid, nanosized clusters with various sizes, shapes, compositions, and structures can be regarded as ideal models for understanding the physical and chemical properties of nanoparticles and complex nanostructures. [4][5][6] In light of this point, the design and construction of nanosized clusters in crystals will provide an efficient and straightforward way to get a reasonable model for core-shell nanostructures.Polyoxometalates (POMs) have found widespread application, mainly in varied fields of analytical chemistry, catalysis, medicine and materials science. [7][8][9] They have a versatile nature, homogeneous size, controllable architecture, large negative charges, possess multiple coordination sites and the great assembly ability to construct novel…”

“…As is known, in a single crystalline solid, nanosized clusters with various sizes, shapes, compositions, and structures can be regarded as ideal models for understanding the physical and chemical properties of nanoparticles and complex nanostructures. [4][5][6] In light of this point, the design and construction of nanosized clusters in crystals will provide an efficient and straightforward way to get a reasonable model for core-shell nanostructures.…”