Chemical fixation of carbon dioxide to cyclic carbonates catalyzed by zinc(II) complex bearing 1,2-disubstituted benzimidazole ligand

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dc.creatorMilani, Jorge Luiz Sônego
dc.creatorOliveira, Igor Santos
dc.creatorSantos, Pâmella Alves dos
dc.creatorValdo, Ana Karoline Silva Mendanha
dc.creatorMartins, Felipe Terra
dc.creatorGomes, Danielle Cangussu de Castro
dc.creatorChagas, Rafael Pavão das
dc.date.accessioned2023-10-17T14:32:18Z
dc.date.available2023-10-17T14:32:18Z
dc.date.issued2018
dc.description.abstractA new zinc(II) complex of formula [ZnCl2(L1)2] (1) [L1 = 2-(2-thienyl)-1-(2-thienylmethyl)-1H- benzimidazole] was synthesized and fully characterized by nuclear magnetic resonance and infrared spectroscopy, elemental analysis, electrospray ionization high-resolution mass spectrometry, and thermogravimetric analysis. The molecular structure was confirmed by single-crystal X-ray diffraction. Complex 1 consists of mononuclear tetrahedral zinc(II) units with a locked geometry resulting from weak intramolecular S…π and π–π interligand interactions. The benzimidazole ligand and its zinc(II) complex were readily obtained through a simple synthetic route. The catalytic activity of 1 was investigated in the coupling of carbon dioxide with epoxides to produce cyclic carbonates, and a series of parameters were evaluated. The complex efficiently catalyzed the transformation of various epoxides under solvent-free conditions, with good conversions, turnover numbers, and turnover frequencies.
dc.identifier.citationMILANI, Jorge L. S. et al. Chemical fixation of carbon dioxide into cyclic carbonates catalyzed by a zinc(II) complex bearing 1,2-disubstituted-benzimidazole ligand. Chinese Journal of Catalysis, Amsterdam, v. 39, p. 245-249, 2018. DOI: 10.1016/S1872-2067(17)62992-9. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S1872206717629929?via%3Dihub. Acesso em: 29 set. 2023.
dc.identifier.doi10.1016/S1872-2067(17)62992-9
dc.identifier.issn0253-9837
dc.identifier.issne- 1872-2067
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S1872206717629929?via%3Dihub
dc.language.isoeng
dc.publisher.countryHolanda
dc.publisher.departmentInstituto de Química - IQ (RMG)
dc.rightsAcesso Restrito
dc.subjectCarbon dioxide
dc.subjectCyclic carbonate
dc.subjectZinc complex
dc.subjectBenzimidazole ligand
dc.subjectCycloaddition
dc.subjectHomogeneous catalysis
dc.titleChemical fixation of carbon dioxide to cyclic carbonates catalyzed by zinc(II) complex bearing 1,2-disubstituted benzimidazole ligand
dc.typeArtigo

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