Coordination Compounds of Rare-Earth Nitrates with N,N-Dimethylacetamide

IF 1.5 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Russian Journal of Inorganic Chemistry Pub Date : 2025-07-09 DOI:10.1134/S0036023625600534

M. S. Polukhin, I. A. Karavaev, E. V. Savinkina, G. A. Buzanov, A. S. Kubasov, M. S. Grigoriev, E. S. Turyshev

{"title":"Coordination Compounds of Rare-Earth Nitrates with N,N-Dimethylacetamide","authors":"M. S. Polukhin, I. A. Karavaev, E. V. Savinkina, G. A. Buzanov, A. S. Kubasov, M. S. Grigoriev, E. S. Turyshev","doi":"10.1134/S0036023625600534","DOIUrl":null,"url":null,"abstract":"Coordination compounds of rare-earth nitrates with N,N-dimethylacetamide (DMAA) with the compositions [Sc(H2O)(DMAA)2(NO3)(μ-OH)2Sc(NO3)(DMAA)2(H2O)](NO3)2, [La(DMAA)4(NO3)3], [Ce(DMAA)5(NO3)2][Ce(DMAA)2(NO3)4], and [Ln(DMAA)3(NO3)3] (Ln = Pr, Nd, Sm–Lu, Y) have been synthesized. Using elemental analysis, IR spectroscopy, single-crystal and powder X-ray diffraction techniques, as well as TGA-DSC analysis, their compositions and structural features were determined; thermal decomposition of the compounds was studied in a wide temperature range (50–900°C). Complexes [Ln(DMAA)3(NO3)3] form two isostructural series: crystals with Ln = Pr–Dy belong to the monoclinic symmetry, and crystals with Ln = Ho–Lu, Y belong to the orthorhombic symmetry. It is shown that the coordination compounds can be used as precursors for the production of nanoscale REE oxides (from 12 to 50 nm) with a specific surface area of 18–65 m2/g.","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"70 5","pages":"708 - 722"},"PeriodicalIF":1.5000,"publicationDate":"2025-07-09","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://link.springer.com/article/10.1134/S0036023625600534","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

Coordination compounds of rare-earth nitrates with N,N-dimethylacetamide (DMAA) with the compositions [Sc(H₂O)(DMAA)₂(NO₃)(μ-OH)₂Sc(NO₃)(DMAA)₂(H₂O)](NO₃)₂, [La(DMAA)₄(NO₃)₃], [Ce(DMAA)₅(NO₃)₂][Ce(DMAA)₂(NO₃)₄], and [Ln(DMAA)₃(NO₃)₃] (Ln = Pr, Nd, Sm–Lu, Y) have been synthesized. Using elemental analysis, IR spectroscopy, single-crystal and powder X-ray diffraction techniques, as well as TGA-DSC analysis, their compositions and structural features were determined; thermal decomposition of the compounds was studied in a wide temperature range (50–900°C). Complexes [Ln(DMAA)₃(NO₃)₃] form two isostructural series: crystals with Ln = Pr–Dy belong to the monoclinic symmetry, and crystals with Ln = Ho–Lu, Y belong to the orthorhombic symmetry. It is shown that the coordination compounds can be used as precursors for the production of nanoscale REE oxides (from 12 to 50 nm) with a specific surface area of 18–65 m²/g.

Abstract Image

查看原文本刊更多论文

稀土硝酸盐与N，N-二甲基乙酰胺的配位化合物

合成了稀土硝酸盐与N，N-二甲基乙酰胺（DMAA）的配位化合物[Sc(H2O)(DMAA)2(NO3)(μ-OH)2Sc(NO3)(DMAA)2(H2O)](NO3)2, [La(DMAA)4(NO3)3], [Ce(DMAA)5(NO3)2][Ce(DMAA)2(NO3)4], [Ln(DMAA)3(NO3)3] （Ln = Pr, Nd, Sm-Lu， Y）。采用元素分析、红外光谱、单晶和粉末x射线衍射技术以及热重-差热分析对其组成和结构特征进行了测定；在较宽的温度范围内（50-900℃）研究了化合物的热分解。配合物[Ln(DMAA)3(NO3)3]形成了两个同构系列：Ln = Pr-Dy的晶体属于单斜对称，Ln = Ho-Lu， Y的晶体属于正交对称。结果表明，配位化合物可作为前驱体，用于制备比表面积为18 ~ 65 m2/g的纳米级稀土氧化物（12 ~ 50 nm）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Russian Journal of Inorganic Chemistry 化学-无机化学与核化学

CiteScore

3.10

自引率

38.10%

发文量

237

审稿时长

3 months

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.