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The homogeneous nitrogen\u2010bridged symmetrical binuclear complexes, [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>1<\/jats:sup>)(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub>] (<jats:bold>1<\/jats:bold>), [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>2<\/jats:sup>)(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub>] (<jats:bold>2<\/jats:bold>) and [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>3<\/jats:sup>)(MeOH)<jats:sub>2<\/jats:sub>] (<jats:bold>3<\/jats:bold>) have been isolated by reacting these ligands with [Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>(acac)<jats:sub>2<\/jats:sub>] in a 1\u2009:\u20092 molar ratio in refluxing methanol. Using 1\u2009:\u20091 (ligand to Mo precursor) molar ratio under above reaction conditions resulted in the corresponding mononuclear complexes, [Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>L<jats:sup>1<\/jats:sup>)(MeOH)] (<jats:bold>4<\/jats:bold>), [Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>L<jats:sup>2<\/jats:sup>)(H<jats:sub>2<\/jats:sub>O)] (<jats:bold>5<\/jats:bold>) and [Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>L<jats:sup>3<\/jats:sup>)(MeOH)] (<jats:bold>6<\/jats:bold>). The binuclear heterogeneous compounds [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>1<\/jats:sup>)(DMF)<jats:sub>2<\/jats:sub>]@PS (<jats:bold>PS\u20101<\/jats:bold>), [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>2<\/jats:sup>)(DMF)<jats:sub>2<\/jats:sub>]@PS (<jats:bold>PS\u20102<\/jats:bold>) and [(Mo<jats:sup>VI<\/jats:sup>O<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>(L<jats:sup>3<\/jats:sup>)(DMF)<jats:sub>2<\/jats:sub>]@PS (<jats:bold>PS\u20103<\/jats:bold>) have been obtained by immobilization of <jats:bold>1<\/jats:bold>\u2013<jats:bold>3<\/jats:bold> onto chloromethylated polystyrene (PS) beads. All synthesized ligands, homogeneous as well as supported compounds have been characterized by elemental analyses and various spectroscopic methods. Single crystal X\u2010ray diffraction study of complexes <jats:bold>1<\/jats:bold> and <jats:bold>3<\/jats:bold> confirms their nitrogen\u2010bridged symmetrical binuclear structures while <jats:bold>4<\/jats:bold> is mononuclear. Heterogeneous compounds (<jats:bold>PS\u20101\u2010PS\u20103<\/jats:bold>) have further been studied by microwave plasma atomic emission spectroscopy, X\u2010ray photoelectron spectroscopy, and field emission scanning electron microscopy along with energy dispersive spectroscopy. These compounds (homogeneous and heterogeneous) were explored for catalytic applications to one\u2010pot multicomponent reactions (MCRs) for efficient synthesis of biologically active 2\u2010amino\u20103\u2010cyano\u20104<jats:italic>H<\/jats:italic>\u2010chromenes\/pyrans (21 examples). Optimising various reaction parameters helped in achieving as high as 97\u2009% yields of products. Though, only half equivalent of the binuclear complexes (<jats:bold>1\u20103<\/jats:bold>) was required compared to mononuclear analogues (<jats:bold>4\u20106<\/jats:bold>) to achieve comparable yields, heterogeneous catalysts have an added advantage due to their stability and recyclability. Suitable reaction mechanism has also been proposed based on isolated intermediates.<\/jats:p>","DOI":"10.1002\/chem.202400631","type":"journal-article","created":{"date-parts":[[2024,3,16]],"date-time":"2024-03-16T03:26:55Z","timestamp":1710559615000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Polymer Supported Nitrogen\u2010Bridged Symmetrical Binuclear Dioxidomolybdenum(VI) Complexes and Their Homogeneous Analogues as Potential Catalysts for Efficient Synthesis of 2\u2010Amino\u20103\u2010Cyano\u20104<i>H<\/i>\u2010Chromenes\/Pyrans"],"prefix":"10.1002","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9977-6287","authenticated-orcid":false,"given":"Mannar R.","family":"Maurya","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Roorkee  Roorkee 247667 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monojit","family":"Nandi","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Roorkee  Roorkee 247667 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naveen","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Roorkee  Roorkee 247667 India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4547-1020","authenticated-orcid":false,"given":"Fernando","family":"Avecilla","sequence":"additional","affiliation":[{"name":"Universidade da Coru\u00f1a, Grupo NanoToxGen Centro Interdisciplinar de Qu\u00edmica y Biolog\u00eda (CICA) Departamento de Qu\u00edmica, Facultade de Ciencias  Campus de A Coruna 15071 A Coruna,\u00a0 Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,4,15]]},"reference":[{"key":"e_1_2_8_1_1","volume-title":"Supported Catalysts and Their Applications","author":"Sherrington D. 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