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Inne
Polymeric Zn(II) and Cu(II) complexes with exobidentate bridging L-tyrosine : synthesis, structural and spectroscopic properties.
Autorzy
Rok wydania
2009
Czasopismo
Numer woluminu
28
Strony
1481-1489
DOI
10.1016/j.poly.2009.02.031
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A novel zinc(II) polymeric complex of the formula {[Zn(tyr)2(H2O)]H2O}n (1) containing l-tyrosine (tyr) was prepared in the crystalline form and characterized by X-ray diffraction, NIR–Vis–UV electronic and IR–FIR vibrational spectroscopy methods. Additionally, for the [Cu(tyr)2]n (2) polymer, the vibrational, electronic, EPR spectroscopic and magnetic properties were studied. l-tyrosine in coordination polymers acts as a N,O-bidendate ligand and presents exobidentate bridging with a μ-carboxyl group. The μ-carboxyl exobidentate bridging coordination mode leads to a one-dimensional chain structure. The ZnN2O3O′ chromophore has an elongated pseudo-octahedral geometry (1), whereas the CuN2O2O′ (2) chromophore presents a distorted square-pyramidal environment with τ = 0.19 around the Cu2+ ion.
Słowa kluczowe
l-Tyrosine, Zinc(II) and copper(II) complexes, X-ray diffraction, IR spectroscopy, UV–Vis–NIR spectroscopy
Adres publiczny
https://doi.org/10.1016/j.poly.2009.02.031
Strona internetowa wydawcy
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