Naslov
NMR insights into the structural features of triazine-based porous organic polymers

Autori
Panić, Barbara ; Sambolec, Miro ; Biljan, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Magnetic Moments in Central Europe 2022: Book of Abstracts / Bregović, Nikola ; Namjesnik, Danijel ; Novak, Predrag ; Parlov Vuković, Jelena - Zagreb : Hrvatsko kemijsko društvo, 2022, 99-99

ISBN
978-953-8334-04-7

Skup
Magnetic Moments in Central Europe 2022 (MMCE 2022)

Mjesto i datum
Primošten, Hrvatska, 01.06.2022. - 04.06.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Porous organic polymers, aromatic trinitro compound, aromatic diamino compounds, solid-state NMR spectroscopy

Sažetak
Carbon dioxide (CO2) is the primary greenhouse gas and its emissions into the atmosphere are the major cause of climate changes, global warming and rising sea levels. Porous organic polymers (POPs) are very promising candidates for CO2 storage because of their high thermal and chemical stability, low density, large surface area and permanent porosity. Recent studies revealed that incorporation of nitrogen-rich functionalities (e.g. azo and triazine) into the framework of POPs improves interactions between POPs and CO2 molecules and increases the CO2/N2 selectivity. Here, we synthesized several new triazine-based azo-bridged POPs by condensation reactions of 2, 4, 6-tris(4-nitrophenyl)-1, 3, 5-triazine and various aromatic diamino and triamino compounds under basic conditions. The obtained polymers are insoluble in common organic solvents and have very high thermal stability. Powder XRD data indicated amorphous nature of triazine-based azo-bridged polymers. IR spectra showed bands which could be attributed to vibrations of the triazine units, the unreacted terminal nitro and amino groups, and the bands of low intensity which could be assigned to the stretching vibrations of new azo bonds. Finally, the formation of new triazine-based azo- bridged polymers was confirmed by inspection and comparison of 13C CP/MAS NMR spectra of polymers and starting compounds

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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