Logo image
Isolation and characterization of the [Ga2Al18O8(OH)36(H2O)12]8+ cluster: cationic variations on the Wells–Dawson topology
Journal article   Peer reviewed

Isolation and characterization of the [Ga2Al18O8(OH)36(H2O)12]8+ cluster: cationic variations on the Wells–Dawson topology

M Fairley, K. W Corum, A Johns, D. K Unruh, M Basile, J de Groot, S. E Mason and T. Z Forbes
Chemical communications (Cambridge, England), Vol.51(62), pp.12467-12469
2015
DOI: 10.1039/C5CC03069B
PMID: 26146343

View Online

Abstract

The structural chemistry of Group 13 polyoxometalates lags far behind related negatively charged transition metal species and limits the development of advanced materials. A novel heterometallic cluster [Ga2Al18O8(OH)36(H2O)12]8+ (Ga2Al18) has been isolated using a supramolecular approach and structurally characterized using single-crystal X-ray diffraction. Ga2Al18 represents the Wells–Dawson structure polycations and variations in the structural topology may be related to the initial stabilization of the Keggin isomer. DFT calculations on the related ε-Keggins (GaAl12 and Al13), Ga2Al18, and theoretical Al2Al18 clusters reveal similar features of electronic structure, suggesting additional heteroatom substitution in other isostructural clusters should be possible.

Details

Metrics

17 Record Views
Logo image