Repozytorium
Wyszukaj
Kolekcje
Inne
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.
Autorzy
Rok wydania
2011
Czasopismo
Journal of Molecular Structure
Numer woluminu
988
Strony
9-16
DOI
10.1016/j.molstruc.2010.11.052
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Two novel copper(II) complexes, [Cu(2-Cl-5-FC7H3O2)2(β-pic)2(H2O)2] 1 and [Cu(en)2(H2O)2] (2-Cl-5-F-C7H3O2)2 2 (where β-pic = β-picoline, en = ethylenediamine) were isolated by addition of β-picoline and ethylenediamine respectively to the hydrated copper(II) aryl carboxylate, Cu(2-Cl-5-F-C7H3O2)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/Vis), conductance, magnetic susceptibility studies and single crystal X-ray structure determination. Single crystal X-ray structure determinations revealed the presence of covalently bonded 2-Chloro-5-fluorobenzoate groups in the complex, viz: [Cu(2-Cl-5-FC7H3O2)2(β-picoline)2(H2O)2] 1 and ionic 2-Chloro-5-fluorobenzoate groups in [Cu(en)2(H2O)2] (2-Cl-5-FC7H3O2)2 in 2. In 1, two β-picoline, two unidentate carboxylate groups and two water molecules are coordinated to copper(II) ion. In 2, two ethylenediamine molecules (4 N) and two oxygen from water molecules are coordinated to copper(II) ion. Hexacoordination around copper(II) is achieved with distorted octahedral geometry in both the cases. The crystal network in complex 1 is stabilized by O–H⋯O, C–H⋯π, Cl⋯F, and Cl⋯H–C and in complex 2 cationic and anionic layers are held together by the N–H⋯O, O–H⋯O, C–H⋯F, C–H⋯O interactions.
Słowa kluczowe
copper(II), Coordination Chemistry, Ethylenediamine, β-Picoline, 2-Chloro-5-fluorobenzoate
Adres publiczny
https://doi.org/10.1016/j.molstruc.2010.11.052
Strona internetowa wydawcy
Podobne publikacje
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.
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