Transition metal decorated soft nanomaterials through modular self-assembly of an asymmetric hybrid polyoxometalate

Abstract

We report the self-assembly of unique, multicomponent Pt2+-decorated micellar nanostructures from an asymmetric hybrid polyoxometalate building block.

{P2V3W15}-Polyoxometalates Functionalized with Phthalocyaninato Y and Yb Moieties

“…Polyoxometalate (POM)-based organic–inorganic hybrid compounds constitute a large part of stimuli-responsive materials with promising applications in photo/electrocatalysis, molecular magnetism, and energy storage. − In particular, their development is pursued due to high interest for photoinduced charge transfer between transition-metal/lanthanide complex units and POM. The effective attachment of the former to the polyoxoanion unit can be effectively realized via organic functional groups and linkages, which are structurally exposed at the molecular periphery of POM through well-established functionalization and postfunctionalization mechanisms. ,,− For instance, the formation of the molecular heterometal metal-to-POM charge transfer (MPCT) chromophore with a short-lived charge-separated state has been observed in the compound K 15 NaP 4 W 35 O 124 {Re­(CO) 3 } 2 ·37H 2 O and its organic-solvent-soluble analog ( n Bu 4 N) 15 [HP 4 W 35 O 124 ]­{Re­(CO) 3 } 2 ·0.3CH 2 Cl 2 , which consist of a [Re­(CO) 3 ] + unit bound directly to the lacunary Wells–Dawson-type POM [α 2 -P 2 W 17 O 61 ] 10– .…”

Supramolecular assemblies of organo-functionalised hybrid polyoxometalates: from functional building blocks to hierarchical nanomaterials

“…of an Fe II linker a dimeric POM-Fe II -POM compound could be isolated, which, lacking the distinct ''headtail'' polarity of the uncoordinated precursor, formed variably shaped non-hollow aggregates in a H 2 O-MeCN (9 : 1 v/v) mixture in comparison to the micelles assembled by the precursor. In contrast, in a successive study on the Pt II coordinated oxocluster, 145 micellar assemblies were enabled by the retained amphiphilic polarity that can be considered metal-decorated, as, unlike in the aforementioned bis-organosilyl Dawson oxoclusters, a high angle (approx. 1601) 44 exists between the two distinct arylphosphonate ligands.…”

Latest progress in covalently modified polyoxometalates-based molecular assemblies and advanced materials

“…Covalently modified POMs can further form hybrid functional materials containing frameworks [31][32][33][34] , polymers and other nanostructures [35][36][37][38][39] by coordination assembling with metal ions or metal clusters. Metal-organic frameworks (MOFs) were a kind of porous crystalline materials, which were formed by self-assembly of metal ions/clusters with organic ligands via coordination bonds.…”