Yang Guo-Ping, Shi Han-Jin, Lin Zhou-Fu, Liu Yu-Feng, Lin Xiao-Ling, Li Ke
Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, Jiangxi Province Key Laboratory of Functional Organic Polymers, East China University of Technology, Nanchang 330013, China.
College of Chemistry, Xinjiang University, Urumqi 830017, China.
Inorg Chem. 2024 Oct 7;63(40):19039-19045. doi: 10.1021/acs.inorgchem.4c03662. Epub 2024 Sep 26.
A unique meso Ce(III)-containing antimonotungstate, {Na(OAc)(HO)[Ce(tar)(Htar)(SbWO)(HO)]} (; Htar = tartaric acid), consisting of two enantiomeric parts with a butterfly-like configuration, was successfully synthesized by a one-pot in situ method and characterized. The coordination of d- or l-tar ligands induced the formation of Dawson-like {CeSbW} with right or left configurations, thereby determining the d/l configurations of {Na(OAc)(HO)[Ce(tar)(Htar)(SbWO)(HO)]}. Carboxyl groups link these two enantiomeric parts with Ce(III) ions from each other around the symmetric center of the 1̅ space group. The three types of tar ligands exhibit distinct coordination modes, and all coordinate with at least one W(VI) atom using one carboxylate oxygen atom and one α-OH. represents the largest case among those -dl-tar-functionalized polyoxometalates. Furthermore, exhibits excellent catalytic activity for synthesizing isoindolinones via the three-component reaction of 2-acetylbenzoic acids, amines, and phosphine oxides.
一种独特的含铈（III）的中氮杂环戊二烯锑钨酸盐{Na(OAc)(HO)[Ce(tar)(Htar)(SbWO)(HO)]}（；Htar = 酒石酸），由两个具有蝴蝶状构型的对映体部分组成，通过一锅原位法成功合成并进行了表征。d-或l-酒石酸配体的配位诱导形成具有右或左构型的类道森型{CeSbW}，从而确定了{Na(OAc)(HO)[Ce(tar)(Htar)(SbWO)(HO)]}的d/l构型。羧基围绕1̅空间群的对称中心将这两个对映体部分与Ce(III)离子相互连接。三种类型的酒石酸配体表现出不同的配位模式，并且都使用一个羧酸根氧原子和一个α-OH与至少一个W(VI)原子配位。这是那些-dl-酒石酸官能化多金属氧酸盐中最大的情况。此外，该化合物在2-乙酰苯甲酸、胺和氧化膦的三组分反应中合成异吲哚啉酮表现出优异的催化活性。
