Naslov
The influence of halide and pseudohalide ions on dimensionality of cadmium(II) complexes with selected pyridine-3-amides

Autori
Kukovec, Boris-Marko ; Đaković, Marijana

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

Izvornik
24th Croatian-Slovenian Crystallographic Meeting ; Book of Abstracts / Popović, Stanko ; Meden, Anton - Zagreb : Hrvatska kristalografska zajednica HAZU, 2016, 80-80

Skup
24th Croatian-Slovenian Crystallographic Meeting

Mjesto i datum
Bol, Hrvatska, 21.09.2016. - 25.09.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cadmium(II) ; halide/pseudohalide ; pyridine-3-amide

Sažetak
A design of new materials with desired physical properties is still a highly challenging task as it relies on a very delicate balance of a range of non-covalent interactions. Therefore, to be in a position to tailor a desired property, a much improved understanding of the competition and balance between various non- covalent interactions is needed. We have chosen the amide moieties, halide/pseudohalide ions and aromatic systems, as all the selected functionalities have their supramolecular behavior already well-documented, but their supramolecular behavior in multi-component systems is not established. In this study, we have examined the influence of various halide/pseudohalide ions on dimensionality of cadmium(II) complexes with pyridine-3- ethanamide (3-Acpy) and pyridine-3-propanamide (3-Propy). If chloride or thiocyanate ions were used in the synthesis, 1D coordination polymers were obtained, {; ; ; ; [CdCl2(3-Propy)2] · 2H2O}; ; ; ; n (1) and {; ; ; ; [Cd(SCN)2(3-Acpy)2]}; ; ; ; n (2), respectively. However, if iodide ions were used, a monomer complex, [CdI2(3-Propy)2] (3), was produced. The cadmium(II) ions are octahedrally coordinated and bridged by chloride (in 1) or thiocyanate ions (in 2). The polymer chains of 1 are mutually linked by C– H...O hydrogen bonds (forming R12(5) supramolecular motifs), while the chains of 2 are assembled together by N– H...S hydrogen bonds and S...S interactions. The chains of 1 are also connected to water molecules of crystallization via N–H...O hydrogen bonds. The cadmium(II) ion is tetrahedrally coordinated in 3, while the monomer units are assembled by N– H...O, C–H...O and C–H...I hydrogen bonds, forming R12(6), C11(4) and C11(6) motifs.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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