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Inne
Synthesis, characterization and X-ray structural studies of three hybrid inorganic–organic compounds: silver(I)-, lead(II)- and tris(phenanthroline)copper(II)- 2,6- naphthalenedisulfonate (2,6-nds).
Autorzy
Rok wydania
2015
Czasopismo
Numer woluminu
432
Strony
221-230
DOI
10.1016/j.ica.2015.04.009
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Three new hybrid inorganic–organic compounds of silver(I), Ag2(2,6-nds), 1, lead(II), [Pb(2,6-nds)·H2O]n, 2 and copper(II), [Cu(phen)3](2,6-nds)·11H2O, 3, have been synthesized by reacting appropriate reactants in aqueous medium. All the three compounds were characterized on the basis of elemental analyses, spectroscopic techniques (FT-IR, NMR, EPR and NIR-Vis-UV), thermogravimetric analyses and X-ray powder diffraction studies. Single crystal X-ray structure determination of compound 2 (Monoclinic, P 21/c) revealed a polymeric structure in which lead(II) is seven coordinated by six sulfonato oxygen atoms and one oxygen atom of water molecule where as compound 3 (Triclinic, ) revealed the existence of discrete ions i.e. [Cu(phen)3]2 + cation, 2,6-naphthalenedisulfonate (2,6-nds) anion and eleven water molecules of crystallization. These water molecules in wide channels show intermolecular non-covalent interactions with disulfonate anion and [Cu(phen)3]2 + cationic layer, leading to crystal lattice stabilization. The d–d bands found in diffuse-reflectance electronic spectrum arise from 2A1g (dx2−y2) > 2A2g (dz2) ≈ 2B1g (dxy) > 2B2g (dxy) ≈ 2B3g (dyz) transitions. A rare resolution of copper hyperfine splitting of powder EPR spectrum is observed only at low temperature.
Słowa kluczowe
molecule, 6-nds, X-ray crystallography, Diffuse-reflectance electronic spectrum, Hyperfine splitting and non-covalent interactions
Adres publiczny
http://dx.doi.org/10.1016/j.ica.2015.04.009
Strona internetowa wydawcy
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