College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.
Dalton Trans. 2019 Oct 7;48(37):14044-14048. doi: 10.1039/c9dt03057c. Epub 2019 Sep 6.
Two macrocyclic titanium-oxo clusters, namely, [Ti(μ-O)(μ-O)(OCHCHO)(OCHCHOH)(BTA)]·44HO (BTA = butyrate) and [Ti(μ-O)(μ-O)(OCHCHO)(OCHCHOH)(DMBTA)(HDMBTA)]·24HO (DMBTA = 2,2-dimethylbutyrate) were synthesized and structurally characterized. The framework of the Ti-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 Ti-oxo macrocycles towards the oxidative desulfurization (ODS) reaction were investigated. The structure-dependent catalytic properties towards oxidative desulfurization were observed for the Ti-oxo macrocycles functionalized with the different carboxylate ligands.
两种大环钛氧簇合物，即[Ti(μ-O)(μ-O)(OCHCHO)(OCHCHOH)(BTA)]·44HO（BTA=丁酸盐）和[Ti(μ-O)(μ-O)(OCHCHO)(OCHCHOH)(DMBTA)(HDMBTA)]·24HO（DMBTA=2,2-二甲基丁酸）被合成并进行了结构表征。钛氧大环的骨架被双去质子化的乙二醇酸配体周期性固定，其具有约 1.2×1.2nm 的内腔。考察了钛氧大环化合物对氧化脱硫（ODS）反应的催化性能。对于用不同羧酸配体功能化的钛氧大环化合物，观察到了结构依赖性的氧化脱硫催化性能。
