The C2-symmetry colorimetric dye based on a thiosemicarbazone derivative and its cadmium complex for detecting heavy metal cations (Ni2+, Co2+, Cd2+, and Cu2+) collectively, in DMF

The C2-symmetry colorimetric dye based on a thiosemicarbazone derivative and its cadmium complex for detecting heavy metal cations (Ni2+, Co2+, Cd2+, and Cu2+) collectively, in DMF | 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 The C 2 -symmetry colorimetric dye based on a thiosemicarbazone derivative and its cadmium complex for detecting heavy metal cations (Ni 2+ , Co 2+ , Cd 2+ , and Cu 2+ ) collectively, in DMF Phillipus N Hishimone, Eunike Hamukwaya, Veikko Uahengo This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-158752/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 20 Apr, 2021 Read the published version in Journal of Fluorescence → Version 1 posted 3 You are reading this latest preprint version Abstract The field of chemosensing has been experiencing an exponential expansion in recent times, due to increased demands for simpler and user-friendly analytical techniques, in order to combat and confront the challenges of industrial pollutions in the 21 st century. Metal complex-based chemosensors have received little attention while exhibiting excellent sensing properties, comparing to their organic counterparts. Thus, a thiosemicarbazone-based ( H ) and its cadmium complex ( P ) were synthesized, characterized and their photophysical and chemosensing properties were investigated in DMF solvent. The addition of molar equivalents of selected cations (of nitrates or chloride salts) to H and P , produced visually detectable colour changes as well as remarkable spectral shifts. Explicitly, the two probes ( H and P ) were able to collectively discriminate heavy metal cations such as Cd 2+ , Co 2+ , Zn 2+ , Cu 2+ , Ni 2+, and Ag + , both in DMF, among all other heavy metal cations tested. None of the anions could be detected by H or P , even when the tetrabutylammonium salts (TBAs) were used, the action presumably ascribed to the solvent effect. Thus, H and P can be used to selectively and sensitively detect the presence of heavy metal cations, via naked-eye detectable colour changes in an aqueous soluble solvent such as DMF. Organic Chemistry General Biochemistry Cadmium-complex sensor Cd(II) and Ni(II) Probe Thiosemicarbazone Sensor Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Full Text Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the latest manuscript can be downloaded and accessed as a PDF. Supplementary Files Scheme1.png Scheme 1: The 2-D structures of the ligand (H) and its complex (P) Cite Share Download PDF Status: Published Journal Publication published 20 Apr, 2021 Read the published version in Journal of Fluorescence → Version 1 posted Reviews received at journal 24 Feb, 2021 Reviewers invited by journal 17 Feb, 2021 First submitted to journal 19 Jan, 2021 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-158752","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":12589064,"identity":"d7f0d7d6-0d2e-4941-8a02-842f12cfc86f","order_by":0,"name":"Phillipus N Hishimone","email":"","orcid":"","institution":"University of Namibia Faculty of Science","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Phillipus","middleName":"N","lastName":"Hishimone","suffix":""},{"id":12589065,"identity":"e5ad1489-79f7-4ae8-ad71-c639d4398e19","order_by":1,"name":"Eunike Hamukwaya","email":"","orcid":"","institution":"University 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