Naslov
Coordination polymers and solvatomorphs-copper complexes with amino acids and 2, 2'-bipyridine

Autori
Vušak, Darko ; Ležaić, Katarina ; Prugovečki, Biserka ; Matković-Čalogović, Dubravka

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

Izvornik
32nd European Crystallographic Meeting 2019 : Book of Abstract / - , 2019, 519-519

Skup
32nd European Crystallographic Meeting

Mjesto i datum
Beč, Austrija, 18.08.2019. - 23.08.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
copper complexes ; amino acids ; heterocyclic bases

Sažetak
Copper complexes with amino acids and heterocyclic bases are interesting systems in crystal engineering due to versatility of noncovalent interactions (hydrogen bonds, π- interactions), which are responsible for different architectures. These type of complexes are also used in medicine, enantioselective synthesis and for molecular recognition. As part of our investigation of porous materials, coordination polymers and solvatomorphism in copper–amino acidato systems, we report 4 new structures of copper complexes with 2, 2‘-bipyridine (bpy) and L- alanine (ala), L-valine (val) and L-threonine (thr): [Cu(ala)(H2O)(bpy)]2SO4∙2.5H2O (1), [Cu(ala)(H2O)(bpy)]2SO4∙2H2O (2), [Cu(val)(H2O) (bpy)]2SO4∙2H2O (3), and [Cu(thr)(H2O) (bpy)]2SO4∙4H2O (4). In cations of mononuclear complex 4 the copper(II) ion is pentacoordinated by N, O-donating thr ligand and N, N’-donating bpy ligand in the basal plane and an apically coordinated water molecule with close C=O∙∙∙Cu contact at unoccupied axial position. 1D coordination polymers 1–3 contain complex cations with Cu(II) ions octahedrally coordinated by didentate ala or val, bpy and carboxyl oxygen atom. 1–4 form infinite double chains through π-interactions of the neighbouring bpy rings, which are interconnected by O–H∙∙∙O hydrogen bonds. Water molecules of crystallization are located in pockets between double chains, and, with sulfate ions, serve as hydrogen bond bridges between adjacent chains through O–H∙∙∙O and N–H∙∙∙O hydrogen bonds.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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