Repozytorium
Wyszukaj
Kolekcje
Inne
Spectra-structure relationship: syntheses, characterization, single crystal X-ray structural studies and packing analyses of two novel copper(II) complexes: [Cu(pyridine)2(H2O)4](p-toluenesulfonate)2 and [Cu(β-picoline)2(H2O)4]-(p-toluenesulfonate)2.
Autorzy
Rok wydania
2011
Czasopismo
Journal of Molecular Structure
Numer woluminu
994
Strony
21-28
DOI
10.1016/j.molstruc.2011.02.043
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
In an attempt to formulate spectra–structural relationship to provide information on coordination around copper(II) ion in aqueous solution, two novel copper(II) complexes were investigated. [Cu(py)2(H2O)4](p-toluenesulfonate)2, 1 and [Cu(β-pic)2(H2O)4](p-toluenesulfonate)2, 2(py = pyridine, β-pic = β-picoline) were isolated by addition of py and β-pic respectively to the hydrated Cu(p-toluenesulfonate)2 suspended in water–methanol (1:4) mixture. The newly isolated complexes have been characterized by elemental analyses, TGA, spectroscopic techniques (EPR, IR and UV/Visible), conductance, magnetic susceptibility studies and single crystal X-ray structure determination.
X-ray structural studies revealed the presence of uncoordinated p-toluenesulfonate anions in both of the crystal structures. The copper cations coordinate to two py/β-pic and four water molecules; the six donor atoms span as a distorted octahedron in both case. The crystal packing in both the complexes 1 and 2 are stabilized by CHO, CHπ and ππ stacking interactions besides electrostatic forces of attraction.
Słowa kluczowe
copper(II), Coordination Chemistry, Pyridine, β-Picoline, p-Toluenesulfonate
Adres publiczny
https://doi.org/10.1016/j.molstruc.2011.02.043
Strona internetowa wydawcy
Podobne publikacje
Synthesis, characterization, single crystal X-ray structural studies and packing analyses of two novel copper(II) complexes: [Cu(2-Cl-5-FC7H3O2)2(β-picoline)2(H2O)2] and [Cu(en)2(H2O)2](2-Cl-5-FC7H3O2)2.
Sharma Raj Pal, Saini Anju, Singh S., Singh A., Venugopalan Paloth, Starynowicz Przemysław, Jezierska Julia
The interactions of glycated decapeptide, the Amadori product, with copper(II) ions– a possible effect on the oxidative stress induced aggregation?.
Matera-Witkiewicz Agnieszka, Kapczyńska Katarzyna, Stefanowicz Piotr
The role of the histidine residue in the coordination abilities of peptides with a multi-histidine sequence towards copper(II) ions.
Matera A., Brasuń Justyna, Cebrat Marek, Świątek-Kozłowska Jolanta