由早期过渡金属包覆的深度还原多氧钼酸盐与硝基苯的催化加氢

IF 4.7 2区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR
Xian Xu, Song Lin, Fang Yu and Li Xu*, 
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引用次数: 0

摘要

以[Mo3IVO2(O2CCH3)6(H2O)3]ZnCl4和VO(acac)2 (acac = acetylacetonato)为溶剂热氧化聚集法制备了以早期过渡金属[V3IVMo6IVMo4VIO31py6]2 - (1, py =吡啶)和[V2IVMo12IVMo8VIZn0.35H1.3+O54py12(HNMe2)2]2 -(2)为包覆层的深度还原多金属氧酸盐(pom)。V3-capped Mo6IV-1和V-capped Mo6IV-2表现出12e-reduced - POM结构,其特征是两个[Mo3IVO4]不完全立方簇单元在1(2)中由两个(一个)VO5基团桥接,不同于先前报道的[Sb2Mo6IVMo2VMo4VIO32(OH)2py6]2 - (3), [Ge2Mo6IVMo2VMo4VIO34(OH)2py6]4 -(4)和[Sb2ZnMo6IVMo2VMo4VIO32(OH)2py7](5)中由SbO3/GeO4/SbO3- pyzno4基团连接的POM结构。1-3中的多个MoIV···O//SbIII Lewis对构建了组织良好的Lewis催化场(LCFs),具有广泛的Lewis酸碱协同作用,这是它们在温和条件下非均相氢转移加氢(HTH)将硝基苯还原为苯胺的优异催化性能的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Deeply Reduced Polyoxomolybdates Capped by Early Transition Metals with Catalytic Hydrogenation of Nitrobenzene

Deeply Reduced Polyoxomolybdates Capped by Early Transition Metals with Catalytic Hydrogenation of Nitrobenzene

Deeply Reduced Polyoxomolybdates Capped by Early Transition Metals with Catalytic Hydrogenation of Nitrobenzene

Deeply reduced polyoxometalates (POMs) capped by early transition metals, [V3IVMo6IVMo4VIO31py6]2– (1, py = pyridine) and [V2IVMo12IVMo8VIZn0.35H1.3+O54py12(HNMe2)2]2– (2), were prepared from solvothermal oxidative aggregations of [Mo3IVO2(O2CCH3)6(H2O)3]ZnCl4 and VO(acac)2 (acac = acetylacetonato). V3-capped Mo6IV-1 and V-capped Mo6IV-2 exhibit 12e-reduced POM structures characteristic of two [Mo3IVO4] incomplete cuboidal cluster units bridged by two(one) VO5 groups in 1(2), differing from those linked by SbO3/GeO4/SbO3-pyZnO4 groups in the previously reported [Sb2Mo6IVMo2VMo4VIO32(OH)2py6]2– (3), [Ge2Mo6IVMo2VMo4VIO34(OH)2py6]4– (4), and [Sb2ZnMo6IVMo2VMo4VIO32(OH)2py7] (5), respectively. Multiple MoIV···O//SbIII Lewis pairs in 13 construct well-organized Lewis catalysis fields (LCFs) featuring extensive Lewis acid–base synergistic interactions, which account for their excellent catalytic performance in heterogeneous hydrogen-transfer hydrogenation (HTH) reduction of nitrobenzene to aniline under mild conditions.

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来源期刊
Inorganic Chemistry
Inorganic Chemistry 化学-无机化学与核化学
CiteScore
7.60
自引率
13.00%
发文量
1960
审稿时长
1.9 months
期刊介绍: Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.
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