具有吡唑酸配体的阴离子八面体卤化物钼和钨簇

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Inorganica Chimica Acta Pub Date : 2025-04-01 Epub Date: 2024-12-20 DOI:10.1016/j.ica.2024.122504

Ksenia S. Kozlova , Alexey S. Berezin , Anton A. Ivanov , Michael A. Shestopalov

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引用次数: 0

摘要

在这项研究中，我们提出了一种方便和容易的合成[M6X8(OCH3)6]2−簇的方法，由[M6X8X6]2−(M = Mo， W；X = Br， I)使用甲醇和氢氧化钠，不使用绝对溶剂或甲基化钠。在有机配体的熔融反应中，用吡甲酸酯配体取代了簇中末端的甲基化配体。通过单晶x射线衍射分析和1H NMR谱分析，证实了溶液中阴离子[M6X8(pz)6]2−（pz =吡唑酸酯）配合物的形成。该配合物在固态下表现出宽带发射，发射最大值在600 ~ 700 nm之间（取决于簇核），量子产率约为7%。

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Anionic octahedral halide molybdenum and tungsten clusters with pyrazolate ligands

In this study, we present a convenient and accessible synthesis of [M₆X₈(OCH₃)₆]²⁻ clusters from [M₆X₈X₆]²⁻ (M = Mo, W; X = Br, I) using methanol and sodium hydroxide, without the use of absolute solvents or sodium methylate. The substitution of terminal methylate ligands in the clusters by pyrazolate ligands was conducted using a reaction in the melt of the organic ligand. The formation of anionic [M₆X₈(pz)₆]²⁻ (pz = pyrazolate) complexes was confirmed by both single crystal X-ray diffraction analysis and ¹H NMR spectroscopy in solution. The complexes exhibited broadband emission in solid state with emission maxima ranging from 600 to 700 nm (depending on the cluster core) with quantum yields of approximately 7 %.

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.