Hydrogen-bonded and -stacked nickel(II) thiosemicarbazone complexes: Synthesis, spectral and structural studies
Tarih
2019Yazar
Ozdemir, Namik
Ulkuseven, Bahri
Bal-Demirci, Tuelay
Soylu, Mustafa Serkan
Guveli, Suekriye
Üst veri
Tüm öğe kaydını gösterÖzet
Mixed ligand Ni(II) complexes were synthesized from triphenylphosphine and S-methyl- or S-ethyl-isothiosemicarbazone ligands derived from 3-bromo-5-chloro-2-hydroxy-benzaldehyde. The complexes were characterized by physicochemical and spectroscopic methods. In addition, their molecular structures were determined by single-crystal X-ray diffraction. In both complexes, the Ni atom has a near square-planar geometry, being coordinated by the phenolato oxygen, azomethine nitrogen and amine nitrogen atoms of the thiosemicarbazone ligands, together with the phosphorus atom of the triphenylphosphine. The S-methyl complex includes an additional free thiosemicarbazone ligand in the asymmetric unit. X-ray analysis shows that O-HN, N-HN, C-HN and C-HO-type hydrogen bonds and - stacking interactions are responsible for stabilizing the crystal structures.
Koleksiyonlar
- Makale [92796]