Synthesis and Magnetic Properties of 3d–4f Lanthanide Hetero-nuclear Complexes

Synthesis and Magnetic Properties of 3d–4f Lanthanide Hetero-nuclear Complexes | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Synthesis and Magnetic Properties of 3d–4f Lanthanide Hetero-nuclear Complexes Xue-meng HU, Ya-qi ZHANG, Xiao-han GAO, Shuo LI, Tusipkhan Almas, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7919543/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Single crystal of 3 d -4 f hetero-metallic complexes [Ln 2 Ni(2, 6-DPA) 4 (H 2 O) 8 ] ∙4H 2 O (Ln = Ce, Pr, Nd, Sm), (2, 6-H 2 DPA = pyridine-2, 6-dicarboxylic acid) were designed and synthesized, featuring a Ln-Ni double hetero-nuclear structure, one Ni 2+ ion connects two units of Ln 3+ as a syn-syn bridge forming a chain. The carboxyl (-COO) groups chelated one Ln 3+ ion ( anti ) and one bridging Ni 2+ ion ( syn ), which conform a syn-anti chelating mode. The magnetic data were fitted by different equations with a least-squares refinement method to get an estimate on the strength of the antiferromagnetic exchange interaction, and to describe the spin-orbit coupling. Antiferromagnetic interaction between adjacent paramagnetic ions were found by the magneto-structural study. Pyridine-2, 6-dicarboxylic acid has the ability to sensitize luminescence emission from lanthanide ions. 3d-4f hetero-metallic complexes 2 6-pyridine dicarboxylic acid Thermodynamic properties antiferromagnetism Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementarydata.docx Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7919543","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":545805715,"identity":"ebbc654a-9123-44af-a19f-0bd425384bdf","order_by":0,"name":"Xue-meng HU","email":"","orcid":"","institution":"Liaoning Petrochemical University","correspondingAuthor":false,"prefix":"","firstName":"Xue-meng","middleName":"","lastName":"HU","suffix":""},{"id":545805716,"identity":"c6253e7a-1d14-428b-a27d-1fe63ba75639","order_by":1,"name":"Ya-qi ZHANG","email":"","orcid":"","institution":"Liaoning Petrochemical 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Complexes","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"3d-4f hetero-metallic complexes, 2, 6-pyridine dicarboxylic acid, Thermodynamic properties, antiferromagnetism","lastPublishedDoi":"10.21203/rs.3.rs-7919543/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7919543/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eSingle crystal of 3\u003cem\u003ed\u003c/em\u003e-4\u003cem\u003ef\u003c/em\u003e hetero-metallic complexes [Ln\u003csub\u003e2\u003c/sub\u003eNi(2, 6-DPA)\u003csub\u003e4\u003c/sub\u003e(H\u003csub\u003e2\u003c/sub\u003eO)\u003csub\u003e8\u003c/sub\u003e] ∙4H\u003csub\u003e2\u003c/sub\u003eO (Ln = Ce, Pr, Nd, Sm), (2, 6-H\u003csub\u003e2\u003c/sub\u003eDPA = pyridine-2, 6-dicarboxylic acid) were designed and synthesized, featuring a Ln-Ni double hetero-nuclear structure, one Ni\u003csup\u003e2+\u003c/sup\u003e ion connects two units of Ln\u003csup\u003e3+ \u003c/sup\u003eas a \u003cem\u003esyn-syn\u003c/em\u003e bridge forming a chain. The carboxyl (-COO) groups chelated one Ln\u003csup\u003e3+\u003c/sup\u003e ion (\u003cem\u003eanti\u003c/em\u003e) and one bridging Ni\u003csup\u003e2+\u003c/sup\u003e ion (\u003cem\u003esyn\u003c/em\u003e), which conform a \u003cem\u003esyn-anti\u003c/em\u003e chelating mode. The magnetic data were fitted by different equations with a least-squares refinement method to get an estimate on the strength of the antiferromagnetic exchange interaction, and to describe the spin-orbit coupling. Antiferromagnetic interaction between adjacent paramagnetic ions were found by the magneto-structural study. Pyridine-2, 6-dicarboxylic acid has the ability to sensitize luminescence emission from lanthanide ions.\u003c/p\u003e","manuscriptTitle":"Synthesis and Magnetic Properties of 3d–4f Lanthanide Hetero-nuclear Complexes","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-11-17 23:21:36","doi":"10.21203/rs.3.rs-7919543/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"99e1618b-d123-4e6e-b7cc-d90170ebc291","owner":[],"postedDate":"November 17th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-12-05T13:39:56+00:00","versionOfRecord":[],"versionCreatedAt":"2025-11-17 23:21:36","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7919543","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7919543","identity":"rs-7919543","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}