Porous polymer networks cross-linked by novel copper Schiff base complex: From synthesis to catalytic activity

0566811 - ÚOCHB 2024 RIV GB eng J - Článek v odborném periodiku
Šorm, D. - Bashta, B. - Blahut, Jan - Císařová, I. - Dolejšová Sekerová, L. - Vyskočilová, E. - Sedláček, J.
Porous polymer networks cross-linked by novel copper Schiff base complex: From synthesis to catalytic activity.
European Polymer Journal. Roč. 184, February (2023), č. článku 111772. ISSN 0014-3057. E-ISSN 1873-1945
Institucionální podpora: RVO:61388963
Klíčová slova: porous polymer networks * microporous polyacetylenes * Schiff base * copper * heterogeneous catalysis
Obor OECD: Polymer science
Impakt faktor: 6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.eurpolymj.2022.111772

A new ethynylated Schiff base complex, [Cu(SALANI)2], in which two N-salicylidene(3-ethynylaniline) (SALANI) ligands coordinated one Cu2+ ion, was prepared and characterized by single-crystal X-ray diffraction, FTIR and 1H NMR spectroscopy. The 1H NMR spectra were obtained and interpreted (with the help of DFT calculation) despite the paramagnetic character of the [Cu(SALANI)2] complex. Chain-growth copolymerization of [Cu(SALANI)2] with 4,4′-diethynylbiphenyl and 1,4-diethynylbenzene provided polyacetylene-type micro/mesoporous organometallic networks with [Cu(N-salicylideneaniline)2] segments as network knots. Networks of this type were also prepared by postpolymerization metalation of polyacetylene networks containing N-salicylideneaniline segments as pendant groups. Postpolymerization metalation (leading to further cross-linking) enabled to transform nonporous parent networks into organometallic networks with permanent porosity. The new porous organometallic networks showed a specific surface area from 400 to 700 m2/g and a Cu2+ content of about 6 wt%. The networks prepared by both prepolymerization and postpolymerization metalation were active as heterogeneous catalysts of oxidation of linalool to linalool oxide.
Trvalý link: https://hdl.handle.net/11104/0338093