Different topology of mixed valence CoIICoIII complexes with SCN anions and hydrazone–pyridine-based ligands
Küçük Resim Yok
Dosyalar
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Two novel mixed valence CoIICoIII complexes [Co4II(SCN)12(EtOH)2Co4III(L1)8] (1) and [CoII(SCN)2Co2III(L2)4]n (2) (HL1 = N’-(1-(pyridin-2-yl)ethylidene)nicotinohydrazide and HL2 = N’-(phenyl(pyridin-2-yl)methylene)isonicotinohydrazide) have been synthesized and structurally characterized by the single crystal X-ray crystallography. In both cases, the deprotonated ligands HL1 and HL2 behave as chelating species toward CoIII, further connecting CoII fragments through the nicotine pyridine donors. A different topology is observed in the solid state of these complexes, complex 1 being an octanuclear cyclic species, while 2 is a 1D coordination polymer. The DFT calculations followed by the topological analysis of the electron density distribution have shown the existence of interesting non-covalent S···π-system interactions in 1. The CSD database search for similar supramolecular motif involving NCS anion has shown that the number and strength of S···π interactions depend both on acidity of metal cation and number aromatic systems in the molecular structure of ligand. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
Açıklama
Anahtar Kelimeler
Coordination Polymer, Hydrazine-Pyridine Ligands, Mixed Valence, Octanuclear Co Complex, S···π İnteractions
Kaynak
Structural Chemistry
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
Sayı
Künye
Mahmoudi, G., Novikov, A. S., Balić, T., Zangrando, E., White, J. M., & Eftekhari-Sis, B. (2024). Different topology of mixed valence CoIICoIII complexes with SCN anions and hydrazone–pyridine-based ligands. Structural Chemistry, 1-9.
