TY - JOUR
T1 - Interconversion of copper(II) to copper(I)
T2 - Synthesis, characterization of copper(II) and copper(I) 2,2′-biquinoline complexes and their microbiological activity
AU - Ali, Basem F.
AU - Al-Sou'od, Khaldoun
AU - Al-Ja'ar, Nayef
AU - Nassar, Ahmad
AU - Zaghal, Mukarram H.
AU - Judeh, Zaher
AU - Al-Far, Rawhi
AU - Al-Refai, Mahmoud
AU - Ibrahim, Mohamad
AU - Mansi, Kamal
AU - Al-Obaidi, K. H.
PY - 2006/1/20
Y1 - 2006/1/20
N2 - The complexes [Cu(biq) 2]Cl 2 and [Cu(biq) 2]BF 4·biq (biq = 2,2′-biquinoline) have been prepared and characterized. The interconversion to copper(I) complex [Cu(biq) 2]BF 4·biq, from [Cu(biq) 2]Cl 2 has been established. The new complexes have been characterized by elemental analysis, conductivity and magnetic measurements, IR, UV-vis and 1H- and 13C-NMR spectroscopy. The X-ray analysis of the complex [Cu(biq) 2]BF 4·biq supports the assumption of the interconversion of copper(II) to copper(I) in this case. The crystal structure shows that geometry around the metal is severely distorted from T d, and displays many supramolecular motifs incorporating both hydrophobic (aryl⋯aryl) and hydrophilic (C-H⋯F) intermolecular interactions. The microbiological activity of the complexes against bacteria and fungi was found to be high against Candida albicans, and slight to moderate against bacteria. The antimicrobial activity of [Cu(biq) 2]BF 4·biq was slightly better than that observed for [Cu(biq) 2]Cl 2 against both bacteria and fungi.
AB - The complexes [Cu(biq) 2]Cl 2 and [Cu(biq) 2]BF 4·biq (biq = 2,2′-biquinoline) have been prepared and characterized. The interconversion to copper(I) complex [Cu(biq) 2]BF 4·biq, from [Cu(biq) 2]Cl 2 has been established. The new complexes have been characterized by elemental analysis, conductivity and magnetic measurements, IR, UV-vis and 1H- and 13C-NMR spectroscopy. The X-ray analysis of the complex [Cu(biq) 2]BF 4·biq supports the assumption of the interconversion of copper(II) to copper(I) in this case. The crystal structure shows that geometry around the metal is severely distorted from T d, and displays many supramolecular motifs incorporating both hydrophobic (aryl⋯aryl) and hydrophilic (C-H⋯F) intermolecular interactions. The microbiological activity of the complexes against bacteria and fungi was found to be high against Candida albicans, and slight to moderate against bacteria. The antimicrobial activity of [Cu(biq) 2]BF 4·biq was slightly better than that observed for [Cu(biq) 2]Cl 2 against both bacteria and fungi.
KW - (Aryl⋯aryl) and (C-H⋯F) intermolecular interactions
KW - Biological activity
KW - Copper complexes
KW - Interconversion
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U2 - 10.1080/00958970500329855
DO - 10.1080/00958970500329855
M3 - Article
AN - SCOPUS:29044449997
SN - 0095-8972
VL - 59
SP - 229
EP - 241
JO - Journal of Coordination Chemistry
JF - Journal of Coordination Chemistry
IS - 2
ER -