Synthesis of titanium-oxo macrocyles and their catalytic properties for oxidative desulfurization

Hai-Ting Lv; Ying Cui; Guo-Dong Zou; Na Li; Pei Yang; Yang Fan

doi:10.1039/c9dt03057c

Synthesis of titanium-oxo macrocyles and their catalytic properties for oxidative desulfurization

Dalton Trans. 2019 Oct 7;48(37):14044-14048. doi: 10.1039/c9dt03057c. Epub 2019 Sep 6.

Authors

Hai-Ting Lv¹, Ying Cui¹, Guo-Dong Zou¹, Na Li¹, Pei Yang¹, Yang Fan¹

Affiliation

¹ College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China. yfanchem@163.com.

PMID: 31490480
DOI: 10.1039/c9dt03057c

Abstract

Two macrocyclic titanium-oxo clusters, namely, [Ti₃₂(μ₃-O)₈(μ₂-O)₈(OCH₂CH₂O)₃₂(OCH₂CH₂OH)₁₆(BTA)₁₆]·44H₂O (BTA = butyrate) and [Ti₃₂(μ₃-O)₈(μ₂-O)₈(OCH₂CH₂O)₃₂(OCH₂CH₂OH)₁₆(DMBTA)₁₆(HDMBTA)₂]·24H₂O (DMBTA = 2,2-dimethylbutyrate) were synthesized and structurally characterized. The framework of the Ti₃₂-oxo macrocycle was cyclically fixed by the double-deprotonated ethylene glycolate ligands, which exhibit an inner cavity of about 1.2 × 1.2 nm. The catalytic properties of the Ti₃₂-oxo macrocycles towards the oxidative desulfurization (ODS) reaction were investigated. The structure-dependent catalytic properties towards oxidative desulfurization were observed for the Ti₃₂-oxo macrocycles functionalized with the different carboxylate ligands.