A Novel 1D Helical Coordination Polymer Based on Cu2+ /L-Arginine-Schiff Base: Structure and Supramolecular Insights

A Novel 1D Helical Coordination Polymer Based on Cu2+ /L-Arginine-Schiff Base: Structure and Supramolecular Insights | 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 A Novel 1D Helical Coordination Polymer Based on Cu 2+ /L-Arginine-Schiff Base: Structure and Supramolecular Insights Syed Meheboob Elahi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9597683/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 9 You are reading this latest preprint version Abstract A chiral one-dimensional (1D) helical coordination polymer, [Cu(SalArgH)]NO₃·H₂O (referred to as CuAr), has been synthesized using an L-arginine-derived Schiff base ligand (SalArgH₂) and characterized by single-crystal X-ray diffraction. The Cu(II) center shows a distorted square pyramidal geometry, with the tridentate ligand bridging adjacent metal ions to form an extended polymeric chain. The inherent chirality of the L-arginine moiety guides the formation of a helical structure, effectively transferring molecular chirality into the extended coordination framework. Hirshfeld surface analysis reveals that the crystal packing and stabilization of the helical structure are primarily influenced by O···H hydrogen bonds, with significant contributions also coming from C···H and N···H contacts. Electronic absorption studies reveal transitions such as π→π*, n→π*, ligand-to-metal charge transfer, and weak d–d transitions, which are affected by ligand field effects and Jahn–Teller distortion. Circular dichroism (CD) spectroscopy provides insights into the development of chiral coordination polymers derived from amino acids. Coordination Polymer Amino acid-Schiff base Hirshfeld Surface Analyses Full Text Additional Declarations No competing interests reported. Supplementary Files SupportinginformationCuSalarg.docx Cite Share Download PDF Status: Under Review Version 1 posted Reviewers agreed at journal 11 May, 2026 Reviews received at journal 07 May, 2026 Reviewers agreed at journal 06 May, 2026 Reviewers agreed at journal 06 May, 2026 Reviewers agreed at journal 06 May, 2026 Reviewers invited by journal 06 May, 2026 Editor assigned by journal 06 May, 2026 Submission checks completed at journal 06 May, 2026 First submitted to journal 03 May, 2026 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. 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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-9597683","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":638157932,"identity":"3f43e2db-655c-445d-a761-ed9ed5eb5904","order_by":0,"name":"Syed Meheboob Elahi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+UlEQVRIiWNgGAWjYFACHgZmIJnAwMDcwMxgYANkMzYeIFILI0hLGkhLAylaGA6DxfBq0W3vPfi4oMImj4G9sfFzQcF5u7Xth4G21NhE49JiduZcsvGMM2nFDDwHm6VnGNxO3nYmEajlWFpuAy4tN3LMpHnbDic2SCQ2SPMAtZgdAGphbDiMW8v9N+a/wVrkHzb/5jE4l2x2/iEBLTd4zJghtjC2AW05YGd2g5AtZ3KMpUF+YeNJbLPmMUhOMLsBtCUBn1+OnzH8DAoxfvbDh2/z/LGzNzuf/vDBhxobnFrggA1KJ4JVJhBSjgzsSVE8CkbBKBgFIwMAAK8MYde/e+DAAAAAAElFTkSuQmCC","orcid":"","institution":"Maulana Abul Kalam Azad University of Technology, West Bengal","correspondingAuthor":true,"prefix":"","firstName":"Syed","middleName":"Meheboob","lastName":"Elahi","suffix":""}],"badges":[],"createdAt":"2026-05-03 05:53:29","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9597683/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9597683/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":109336161,"identity":"65124d02-9c1e-454c-b8b4-21596516611e","added_by":"auto","created_at":"2026-05-15 17:17:06","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":811240,"visible":true,"origin":"","legend":"","description":"","filename":"MainArticleCuSalarg06052026.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9597683/v1_covered_f106a07a-61ae-43fd-9950-b0da3e2b45a7.pdf"},{"id":109336159,"identity":"96d13c1e-2a0e-4a0b-9549-71fbf17f9781","added_by":"auto","created_at":"2026-05-15 17:17:01","extension":"docx","order_by":0,"title":"","display":"","copyAsset":false,"role":"supplement","size":325470,"visible":true,"origin":"","legend":"","description":"","filename":"SupportinginformationCuSalarg.docx","url":"https://assets-eu.researchsquare.com/files/rs-9597683/v1/cf7d3576f0e5a15f788bf3bf.docx"}],"financialInterests":"No competing interests reported.","formattedTitle":"\u003cp\u003eA Novel 1D Helical Coordination Polymer Based on Cu\u003csup\u003e2+\u003c/sup\u003e /L-Arginine-Schiff Base: Structure and Supramolecular Insights\u003c/p\u003e","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"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":"transition-metal-chemistry","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"tmch","sideBox":"Learn more about [Transition Metal Chemistry](http://link.springer.com/journal/11243)","snPcode":"11243","submissionUrl":"https://submission.nature.com/new-submission/11243/3","title":"Transition Metal Chemistry","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Coordination Polymer, Amino acid-Schiff base, Hirshfeld Surface Analyses","lastPublishedDoi":"10.21203/rs.3.rs-9597683/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9597683/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eA chiral one-dimensional (1D) helical coordination polymer, [Cu(SalArgH)]NO₃·H₂O (referred to as CuAr), has been synthesized using an L-arginine-derived Schiff base ligand (SalArgH₂) and characterized by single-crystal X-ray diffraction. 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Circular dichroism (CD) spectroscopy provides insights into the development of chiral coordination polymers derived from amino acids.\u003c/p\u003e","manuscriptTitle":"A Novel 1D Helical Coordination Polymer Based on Cu2+ /L-Arginine-Schiff Base: Structure and Supramolecular Insights","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-05-15 17:16:57","doi":"10.21203/rs.3.rs-9597683/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"reviewerAgreed","content":"13914094324854681171298477967169410422","date":"2026-05-11T10:22:38+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-07T08:39:32+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"87170766333557052170064007879588767561","date":"2026-05-07T00:32:09+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"229466502006763847769943949663443015227","date":"2026-05-06T11:23:41+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"96697457700659327845614226709031831800","date":"2026-05-06T09:29:26+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2026-05-06T09:02:14+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-05-06T08:56:40+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-05-06T04:17:22+00:00","index":"","fulltext":""},{"type":"submitted","content":"Transition Metal Chemistry","date":"2026-05-03T05:49:05+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"transition-metal-chemistry","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"tmch","sideBox":"Learn more about [Transition Metal Chemistry](http://link.springer.com/journal/11243)","snPcode":"11243","submissionUrl":"https://submission.nature.com/new-submission/11243/3","title":"Transition Metal Chemistry","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"b890caab-fcfe-4865-816f-58976bd1b2f4","owner":[],"postedDate":"May 15th, 2026","published":true,"recentEditorialEvents":[{"type":"reviewerAgreed","content":"13914094324854681171298477967169410422","date":"2026-05-11T10:22:38+00:00","index":27,"fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-05-07T08:39:32+00:00","index":24,"fulltext":""},{"type":"reviewerAgreed","content":"87170766333557052170064007879588767561","date":"2026-05-07T00:32:09+00:00","index":23,"fulltext":""},{"type":"reviewerAgreed","content":"229466502006763847769943949663443015227","date":"2026-05-06T11:23:41+00:00","index":22,"fulltext":""},{"type":"reviewerAgreed","content":"96697457700659327845614226709031831800","date":"2026-05-06T09:29:26+00:00","index":21,"fulltext":""},{"type":"reviewersInvited","content":"11","date":"2026-05-06T09:02:14+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2026-05-06T08:56:40+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2026-05-06T04:17:22+00:00","index":"","fulltext":""},{"type":"submitted","content":"Transition Metal Chemistry","date":"2026-05-03T05:49:05+00:00","index":"","fulltext":""}],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2026-05-15T17:16:58+00:00","versionOfRecord":[],"versionCreatedAt":"2026-05-15 17:16:57","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9597683","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9597683","identity":"rs-9597683","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}