Meng-Ke Bai, Jin-Ke Ma, Jing Chen, You-Juan Zhang, Qing-Lun Wang
{"title":"Three Novel Cyclic Zn(II)–Nitronyl Nitroxide Radical Complexes: Synthesis, Crystal Structures, and Properties","authors":"Meng-Ke Bai, Jin-Ke Ma, Jing Chen, You-Juan Zhang, Qing-Lun Wang","doi":"10.1134/s0036023624600588","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Using two flexible and functional nitronyl nitroxide radicals as ligands, three novel complexes [Zn(hfac)<sub>2</sub>(NIT<i>o</i>Ph3Py)]<sub>2</sub> (<b>1</b>), [Zn(hfac)<sub>2</sub>(NIT<i>m</i>Ph3Py)]<sub>2</sub> (<b>2</b>), and {[Zn(hfac)<sub>2</sub>]<sub>3</sub>[(NIT<i>m</i>Ph<sub>3</sub>Py)]<sub>2</sub>}<sub><i>n</i></sub> (<b>3</b>) (where NIT<i>o</i>Ph3Py is 2-[2-methoxyphenyl(3-pyridinyl)]-4,4,5,5 -tetramethyl-imidazoline1-oxyl-3-oxide; NIT<i>m</i>Ph3Py is 2-[3-methoxyphenyl(3-pyridinyl)]-4,4,5,5-tetramethyl-imidazoline1-oxyl-3-oxide; hfac is hexafluoroacetylacetonate) have been obtained by the reactions of Zn(hfac)<sub>2</sub>⋅2H<sub>2</sub>O with NIT<i>o</i>Ph3Py/NIT<i>m</i>Ph3Py in <i>n</i>-heptane upon adjusting the experimental conditions. Their crystal structures and magnetic properties have been studied. X-ray crystal diffraction studies have revealed that complexes <b>1</b> and <b>2</b> display binuclear cyclic structure, while <b>3</b> presents a ring-chain polymer consisting of cyclic [Zn-Radical]<sub>2</sub> dimers connected by Zn(hfac)<sub>2</sub> units. The magnetic behaviors of the complexes <b>1</b>–<b>3</b> have been investigated and discussed in connection with their crystal structures.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"28 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1134/s0036023624600588","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Using two flexible and functional nitronyl nitroxide radicals as ligands, three novel complexes [Zn(hfac)2(NIToPh3Py)]2 (1), [Zn(hfac)2(NITmPh3Py)]2 (2), and {[Zn(hfac)2]3[(NITmPh3Py)]2}n (3) (where NIToPh3Py is 2-[2-methoxyphenyl(3-pyridinyl)]-4,4,5,5 -tetramethyl-imidazoline1-oxyl-3-oxide; NITmPh3Py is 2-[3-methoxyphenyl(3-pyridinyl)]-4,4,5,5-tetramethyl-imidazoline1-oxyl-3-oxide; hfac is hexafluoroacetylacetonate) have been obtained by the reactions of Zn(hfac)2⋅2H2O with NIToPh3Py/NITmPh3Py in n-heptane upon adjusting the experimental conditions. Their crystal structures and magnetic properties have been studied. X-ray crystal diffraction studies have revealed that complexes 1 and 2 display binuclear cyclic structure, while 3 presents a ring-chain polymer consisting of cyclic [Zn-Radical]2 dimers connected by Zn(hfac)2 units. The magnetic behaviors of the complexes 1–3 have been investigated and discussed in connection with their crystal structures.
期刊介绍：
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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