Naslov
Impact of coordinated pseudohalide ions and picolinamide on supramolecular synthons in selected zinc and cadmium complexes

Autori
Đaković, Marijana ; Jazwinski, Jaroslaw ; Popović, Zora

Izvornik
Acta chimica Slovenica (1318-0207) 62 (2015), 2; 328-336

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
zinc(II) and cadmium(II) complexes; picolinamide; crystal structure; supramolecular synthons; IR and NMR spectroscopy; thermal analysis (TG/DTA)

Sažetak
Four new Zn and Cd picolinamide (pia) complexes with cyanate and azide ions, namely [Zn(NCO)2(pia)2] (1), [Cd(NCO)2(pia)]n (2), [Zn(N3)2(pia)2] (3) and [Cd(N3)2(pia)]n•nH2O (4), have been prepared and characterized by IR and NMR spectroscopy, and thermal (TG/DTA) methods. For the compounds 1 and 3 X-ray analysis revealed mononuclear molecular structure with octahedral N4O2 environment around the zinc(II) center with cis-arrangement of ligands. Only in 1 the amide head-to-head supramolecular motifs, represented by an R22(8) designator, are observed, while in 3 none of the typical amide motifs were found. While the IR data suggests the polymeric structures for 2 and 4 in the solid state, all the NMR spectral data support the monomeric structure of the compounds in the solution.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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