Naslov
A new copper(II) metal–organic frameworks constructed from N-alkyl glycinates and 3,3'-bipyridine: synthesis, structure and thermal behavior

Autori
Ležaić, Katarina ; Jurković, Mia ; Vušak, Darko ; Prugovečki, Biserka

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

Izvornik
The twenty-eighth Croatian-Slovenian Crystallographic Meeting – CSCM28 / - , 2022, 19-19

Skup
28th Croatian-Slovenian Crystallographic Meeting

Mjesto i datum
Poreč, Hrvatska, 07.09.2022. - 11.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
copper (II), metal–organic frameworks, N-alkyl glycinates, 3, 3’-bipyridine

Sažetak
Metal–organic frameworks (MOFs) are coordination compounds that include metal ions or metal clusters connected with organic ligands, linkers, in their structure. MOFs are porous materials and have potential applications in gas or solvent sorption, gas storage and separation, water harvesting, purification, homogeneous and asymmetric catalysis and drug delivery [1–3]. In MOF design, it is possible to control the intermolecular interactions, the size of MOF pores, and MOF shape by choosing the organic ligands [2, 4]. Amino acids are interesting ligands because of their chelating nature, diversity in types and lengths of sidechains, and potential for functionalization, such as Nalkylation. In this work, we report synthesis and structural characterization of four novel copper(II) metal–organic frameworks with N-alkyl glycinates (N-methyl- (MeGly), N-ethyl- (EtGly) and Npropylglycinate (PrGly)) and 3, 3’-bipyridine: {;[Cu(NO3)(MeGly)(3, 3'-bpy)]·DMF·H2O};n (1a), {;[Cu(NO3)(EtGly)(3, 3'-bpy)]·DMF·H2O};n (2a), {;[Cu(NO3)(EtGly)(3, 3'-bpy)]·(unidentified solvate)};n (2b), {;[Cu(NO3)(PrGly)(3, 3'-bpy)]·DMF};n (3a). These three-dimensional MOFs were obtained by solution synthesis under mild conditions. Additionally, compound 1a was synthesized by a mechanochemical method. The influence of the alkyl chain length of N-alkylglycine on crystal packing, as well as the shape and the size of pores was investigated. In compounds 1a, 2a and 3a the volume fraction of voids range from 27.1% to 31.6% (Figure 1). The topologies of all crystal structures were determined. The thermal behavior of selected compounds has been investigated by powder X-ray diffraction and thermogravimetric analysis.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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