Composition-driven archetype dynamics in polyoxovanadates

Abstract

Molecular metal oxides often adopt common structural frameworks (i.e. archetypes), many of them boasting impressive structural robustness and stability. However, the ability to adapt and to undergo transformations between different...

Automated Rational Design of Metal–Organic Polyhedra

“…In that regard, MOPs similarly as POMs are likely to be a subject of rich configurational isomerism, which is not the focus of the present work. 83,91 However, very recently an algorithm capable of treating configurational problems for polyhedral species has been developed, 92 which in principle can be a modular extension to the present work (see Comment 2 in the SI). In addition to the MOP examples presented in Figure 12, the Supporting Information file contains a list of 18 graphical illustrations of new MOP constructions representative for each assembly model.…”

“…This would imply that in addition to the present model (see Figure b), many other configurations may be possible to be constructed. In that regard, MOPs similarly as POMs are likely to be a subject of rich configurational isomerism, which is not the focus of the present work. , However, very recently an algorithm capable of treating configurational problems for polyhedral species has been developed, which in principle can be a modular extension to the present work (see Comment 2 in the SI).…”

Space-Confined Nucleation of Semimetal-Oxo Clusters within a [H7P8W48O184]33– Macrocycle: Synthesis, Structure, and Enhanced Proton Conductivity

“…Correspondingly, the distances between the As III centers opposite each other on both chains (e.g., As1 chain1 ···As2 chain2 ) fall in the range of 4.375(3)–5.370(4) Å. It is worth mentioning that the AsO 3 3– anions usually work as heterogroups in POMs, positioning in the center of polyoxotungstates (e.g., [ B - a -As III W 9 O 33 ] 9– ) or on the surface of polyoxomolybdates (e.g., [As III As V Mo 9 O 34 ] 6– ) and -vanadates (e.g., [As III 8 V 6 O 26 ] 4– ) . Of prime interest, the self-condensation of arsenites in POMs has been seldom observed, where the number of As III centers is usually less than three. − In As 10 , the confined microenvironment offered by P 8 W 48 is kind of beneficial to the controlled hydrolysis–condensation reaction of AsO 3 3– , increasing the number of repeating units up to five.…”

“…As a consequence, the sterically demanding AsO 88 or on the surface of polyoxomolybdates (e.g., [As III As V Mo 9 O 34 ] 6− ) 89 and -vanadates (e.g., [As III 8 V 6 O 26 ] 4− ). 90 Of prime interest, the self-condensation of arsenites in POMs has been seldom observed, where the number of As III centers is usually less than three. 91−97 In As 10 , the confined microenvironment offered by P 8 W 48 is kind of beneficial to the controlled hydrolysis− condensation reaction of AsO 3 3− , increasing the number of repeating units up to five.…”

A classical [V10O28]6− anion templated high-nuclearity silver thiolate cluster

“…The reasons why POVs are relatively difficult to serve as templates may be that (i) the smaller atomic radius and lower highest oxidation number of V cations cause the accumulation of higher charge density in POV, making V-O bonds less inert relative to M-O and W-O bonds; (ii) the lability in oxidation state of V cations also makes POV more structurally variable, so as to enhance the reactivity. 24,25 In brief, more work on the construction of POV-based silver clusters is still to be explored.…”