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The uncommon features of the designed catalytic system is the elimination of the need for a high pressure of CO<jats:sub>2<\/jats:sub> and the significant shortening of reaction times commonly associated with such difficult transformations like that of styrene oxide to styrene carbonate. Our studies have shown that imine\u2010POSS is able to chelate metal ions like Zn<jats:sup>II<\/jats:sup> to form a unique coordination complex. The silsesquioxane core and the hindrance of the side arms (their steric effect) influence the construction process of the homoleptic <jats:bold>Zn<jats:sub>4<\/jats:sub>@POSS\u20101<\/jats:bold> complex. The compound was characterized in solution by NMR (<jats:sup>1<\/jats:sup>H, <jats:sup>13<\/jats:sup>C, <jats:sup>29<\/jats:sup>Si), ESI\u2010MS, UV\/Vis spectroscopy and in the solid state by thermogravimetric\/differential thermal analysis (TG\u2010DTA), elemental analysis, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), cross\u2010polarization magic angle spinning (CP MAS) NMR (<jats:sup>13<\/jats:sup>C, <jats:sup>29<\/jats:sup>Si) spectroscopy, and X\u2010ray crystallography.<\/jats:p>","DOI":"10.1002\/chem.202002996","type":"journal-article","created":{"date-parts":[[2020,7,24]],"date-time":"2020-07-24T11:46:04Z","timestamp":1595591164000},"page":"13686-13697","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Zinc Imine Polyhedral Oligomeric Silsesquioxane as a Quattro\u2010Site Catalyst for the Synthesis of Cyclic Carbonates from Epoxides and Low\u2010Pressure CO<sub>2<\/sub>"],"prefix":"10.1002","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2197-7913","authenticated-orcid":false,"given":"Mateusz","family":"Janeta","sequence":"first","affiliation":[{"name":"Faculty of Chemistry University of Wroc\u0142aw  F. 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