We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Lewis Acid Guests in a {P<sub>8</sub>W<sub>48</sub>} Archetypal Polyoxotungstate Host: Enhanced Proton Conductivity via Metal‐Oxo Cluster within Cluster Assemblies.
- Authors
Yang, Peng; Alsufyani, Maryam; Emwas, Abdul‐Hamid; Chen, Chaoqin; Khashab, Niveen M.
- Abstract
Abstract: Complexes made by hosts that completely surround their guests provide a means to stabilize reactive chemical intermediates, transfer biologically active cargo to a diseased cell, and construct molecular‐scale devices. By the virtue of inorganic host–guest self‐assembly, nucleation processes in the cavity of a {P8W48}‐archetype phosphotungstate has afforded a nanoscale 16‐AlIII‐32‐oxo cluster and its GaIII analogue that contain the largest number of AlIII/GaIII ions yet found in polyoxometalate (POM) chemistry. Interestingly, the rich Lewis acid AlIII centers within the Lewis base POM support shows an exceptional proton conductivity of 4.5×10−2 S cm−1 (85 °C, 70 % RH; RH: relative humidity), which is by far the highest conductivity reported among POM‐based single‐crystal proton conductors.
- Subjects
LEWIS acids; POLYOXOTUNGSTATES; PROTON conductivity; OXO compounds; MOLECULAR self-assembly; METAL clusters
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 40, p13230
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201806086