id,collection,dc.contributor.author,dc.date.accessioned,dc.date.available,dc.date.issued,dc.description.abstract[en],dc.format.extent,dc.identifier.uri,dc.language,dc.rights.uri,dc.subject.ddc,dc.subject[en],dc.title,dc.type,dcterms.accessRights.openaire,dcterms.bibliographicCitation.doi,dcterms.bibliographicCitation.journaltitle,dcterms.bibliographicCitation.number,dcterms.bibliographicCitation.pageend,dcterms.bibliographicCitation.pagestart,dcterms.bibliographicCitation.url,dcterms.bibliographicCitation.volume,dcterms.isPartOf.eissn,refubium.affiliation,refubium.affiliation.other,refubium.resourceType.isindependentpub,refubium.resourceType.provider "40bf9846-9f6e-4aea-a32c-d2411680ede2","fub188/16","Sigmund, Lukas M.||Engels, Eliane||Richert, Nick||Greb, Lutz","2022-10-11T10:49:58Z","2022-10-11T10:49:58Z","2022","Forcing a priori tetracoordinate atoms into planar configuration represents a promising concept for enhanced reactivity of p-block element-based systems. Herein, the synthesis, characterization, and reactivity of calix[4]pyrrolato gallates, constituting square planar-coordinated gallium(III) atoms, are reported. Unusual structural constraint-induced Lewis acidity against neutral and anionic donors is disclosed by experiment and rationalized by computations. An energetically balanced dearomatization/rearomatization of a pyrrole unit enables fully reversible metal–ligand cooperative capture of CO2. While alcohols are found unreactive against the gallates, a rapid and selective OH-bond activation can be triggered upon protonation of the ligand. Secondary ligand–sphere modification adds a new avenue to structurally-constrained complexes that unites functional group tolerance with unconventional reactivity.","6 Seiten","https://refubium.fu-berlin.de/handle/fub188/36540||http://dx.doi.org/10.17169/refubium-36253","eng","https://creativecommons.org/licenses/by-nc/4.0/","500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften","calix[4]pyrrolato gallates||synthesis||characterization||reactivity","Calix[4]pyrrolato gallate: square planar-coordinated gallium(iii) and its metal–ligand cooperative reactivity with CO2 and alcohols","Wissenschaftlicher Artikel","open access","10.1039/D2SC03054C","Chemical Science","37","11220","11215","https://doi.org/10.1039/D2SC03054C","13","2041-6539","Biologie, Chemie, Pharmazie","Institut für Chemie und Biochemie:::bdaf1c47-f341-464f-b012-0d24067d34b8:::600","no","WoS-Alert"