Bibliographic Details
| Title: |
Isomeric effects on the acidity of Al13 Keggin clusters in porous ionic crystals. |
| Authors: |
Zhou, Wei, Ogiwara, Naoki, Weng, Zhewei, Tamai, Nanako, Zhao, Congcong, Yan, Li-Kai, Uchida, Sayaka |
| Source: |
Chemical Communications; 9/14/2021, Vol. 57 Issue 71, p8893-8896, 4p |
| Subject Terms: |
IONIC crystals, PINACOL rearrangement, ACIDITY, ISOMERS, CATALYTIC activity, ACID catalysts |
| Abstract: |
We demonstrate a facile synthesis method of a porous ionic crystal (PIC) composed of the little-known δ-Keggin-type cationic polyoxoaluminum cluster ([δ-Al13O4(OH)24(H2O)12]7+, δ-Al13) with an oppositely-charged polyoxometalate, which enabled us to investigate the activity as a solid acid. The δ-Al13 based PIC exhibited much higher activity in pinacol rearrangement, a typical acid-catalyzed reaction, than the PIC based on the well-known and thermodynamically stable rotational isomer (ε-Al13). This work is a rare example of rotational isomers of polyoxoaluminum clusters exhibiting remarkably different catalytic activities. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
