Muhammad Nadeem Akhtar , Valeriu Mereacre , Ghenadie Novitchi , Murad A. AlDamen , Christopher E. Anson , Annie K. Powell
{"title":"Synthesis, structures, and magnetic properties of Fe4-Ln2 (Ln = Tb, Ho, and Er) clusters with N, N, N′, N′-tetrakis-(2-hydroxyethyl)ethylenediamine","authors":"Muhammad Nadeem Akhtar , Valeriu Mereacre , Ghenadie Novitchi , Murad A. AlDamen , Christopher E. Anson , Annie K. Powell","doi":"10.1016/j.ica.2022.120920","DOIUrl":null,"url":null,"abstract":"<div><p>Three isostructural heterometallic {Fe<sup>III</sup><sub>4</sub>Ln<sup>III</sup><sub>2</sub>} coordination clusters are reported with genernal formula; [Fe<sup>III</sup><sub>4</sub>Ln<sup>III</sup><sub>2</sub>(μ<sub>4</sub>-O)<sub>2</sub>(Hedte)<sub>2</sub>(piv)<sub>6</sub>(NO<sub>3</sub>)<sub>2</sub>]∙2MeCN∙2CH<sub>2</sub>Cl<sub>2</sub> {Ln = Tb(<strong>1</strong>), Ho(<strong>2</strong>) and Er(<strong>3</strong>), where Hedte = <em>N</em>,<em>N</em>,<em>N,N</em>′<em>-</em>-<em>tetrakis</em>-(2-hydroxyethyl)ethylenediamine; piv = pivalic acid}. These clusters are obtained by reacting the FeCl<sub>2</sub>·4H<sub>2</sub>O, pivalic acid, Ln(NO<sub>3</sub>)<sub>3</sub>·6H<sub>2</sub>O, and H<sub>4</sub>edte in MeCN/CH<sub>2</sub>Cl<sub>2</sub>. X-ray measurements revealed that <strong>1</strong>–<strong>3</strong> clusters exhibit a “butterfly” core shape. Solid-state <em>dc</em>-magnetic susceptibility measurement indicates the ferromagnetic interactions in <strong>1</strong> while <strong>2</strong> and <strong>3</strong> demonstrates dominated antiferromagnetic interactions.</p></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"537 ","pages":"Article 120920"},"PeriodicalIF":2.7000,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganica Chimica Acta","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020169322001323","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 1
Abstract
Three isostructural heterometallic {FeIII4LnIII2} coordination clusters are reported with genernal formula; [FeIII4LnIII2(μ4-O)2(Hedte)2(piv)6(NO3)2]∙2MeCN∙2CH2Cl2 {Ln = Tb(1), Ho(2) and Er(3), where Hedte = N,N,N,N′--tetrakis-(2-hydroxyethyl)ethylenediamine; piv = pivalic acid}. These clusters are obtained by reacting the FeCl2·4H2O, pivalic acid, Ln(NO3)3·6H2O, and H4edte in MeCN/CH2Cl2. X-ray measurements revealed that 1–3 clusters exhibit a “butterfly” core shape. Solid-state dc-magnetic susceptibility measurement indicates the ferromagnetic interactions in 1 while 2 and 3 demonstrates dominated antiferromagnetic interactions.
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.
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