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Construction of zirconium/hafnium-oxo clusters based on a new protection-calix[8]arene.

Authors :
Wang, Fei-Fei
Hou, Baoshan
Source :
Dalton Transactions: An International Journal of Inorganic Chemistry. 4/21/2024, Vol. 53 Issue 15, p6507-6514. 8p.
Publication Year :
2024

Abstract

Calix[8]arene has been used as a promising type of macrocyclic ligand for the construction of multinuclear metal-oxo clusters (MOCs), but not for zirconium/hafnium-oxo clusters (Zr/HfOCs). In this paper, we report the first series of ZrOCs (HfOCs) based on calix[8]arene: Zr4, Zr8, Hf4, and Hf8. Zr8/Hf8 has a rhombohedral conformation and can be regarded as a derivative of the octahedral Zr6 cluster. Remarkably, I2 adsorption experiments indicate that Zr4 (Zr8) adsorbs much faster than Hf4 (Hf8). Density functional theory (DFT) calculations show that metallic Zr atoms interact more strongly with I2 than metallic Hf atoms. The successful application of calix[8]arene for the synthesis of well-defined ZrOCs (HfOCs) shows a bright future for MOCs protected by macrocyclic ligands. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14779226
Volume :
53
Issue :
15
Database :
Academic Search Index
Journal :
Dalton Transactions: An International Journal of Inorganic Chemistry
Publication Type :
Academic Journal
Accession number :
176611107
Full Text :
https://doi.org/10.1039/d4dt00169a