Different topology of mixed valence CoIICoIII complexes with SCN anions and hydrazone-pyridine-based ligands
Küçük Resim Yok
Tarih
27.12.2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SPRINGER/PLENUM PUBLISHERS
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Two novel mixed valence Co II Co III complexes [Co 4II (SCN) 12 (EtOH) 2 Co 4III (L1) 8 ] (1) and [Co II (SCN) 2 Co 2III (L2) 4 ]n (2)
(HL1 = N’-(1-(pyridin-2-yl)ethylidene)nicotinohydrazide and HL2 = N’-(phenyl(pyridin-2-yl)methylene)isonicotinohy-
drazide) 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 Co III , further connecting Co II 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.
Açıklama
Anahtar Kelimeler
Co(II, III) complexes · Mixed valence · Hydrazine-pyridine ligands · Octanuclear Co complex · Coordination polymer · S···π interactions
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.
