Observing the Hierarchical Self‐Assembly and Architectural Bistability of Hybrid Molecular Metal Oxides Using Ion‐Mobility Mass Spectrometry

Abstract

Ion‐mobility mass spectrometry has been explored as a new technique in the analysis of polyoxometalates and was utilized for the differentiation between photoswitchable isomers of organic–inorganic hybrid compounds (see picture).

The Anderson–Evans polyoxometalate: From inorganic building blocks via hybrid organic–inorganic structures to tomorrows “Bio-POM”

“…The azo bond was studied in aliphatic chains with differing lengths, consisting of two phenyl units bridged by the azo bond and attached to the Mn III Mo 6 core. Upon UV irradiation of the sample a conformational change from trans to cis occurred whereas exposure to visible light reversed the process [270]. The anion [AlMo 6 O 18 (OH) 3 (OCH 2 ) 3 CHNCOCH 2 OH 4 C 6 NNC 6 H 5 ] 3-containing the single-side covalently attached aromatic azobenzene ligand has been studied in a three supramolecular hybrid system (POM -α-cyclodextrin -MB).…”

A new azobenzene-based design strategy for detergents in membrane protein research

“…IM-MS has been used to monitor the light-driven molecular shape transition and underlying isomerization kinetics of azobenzene derivatives. 24,[44][45][46][47] One of the remaining questions is, if IM-MS is capable providing data on the isomer ratios present in solution. To address this question, we rst investigated the isomer ratios of OGBA 3 by using two different IM-MS instruments: (a) a commercially available Synapt G2 S HDMS travelling wave (TW) instrument and (b) a homebuilt linear dri tube (DT) instrument ( Fig.…”

Designed Assembly of Heterometallic Cluster Organic Frameworks Based on Anderson‐Type Polyoxometalate Clusters

“…In this Communication, we chose 2-(hydroxymethyl)-2-(pyridin-4-yl)-1,3-propanediol( H 3 L)a st he bridging ligand based on the following considerations:1 )iti sarigid bifunctional ligand containing three hydroxy groups and a4-pyridyl group on opposite sides,e nabling the L ligand to act as al inear bridge;2 )The hydroxy groups can be easily incorporated into POM clusters (so far,t ris(alkoxo) ligand grafted Anderson, [7] Lindqvist, [8] Dawson, [9] and other POMs [10] have been documented);3 )T he 4-pyridyl group may capture and stabilize TM clusters formed in situ. [11] As ar esult, extended cluster organic frameworks containing POM and TM clusters might be obtained (Scheme 1).…”