TY - JOUR
T1 - Investigations into the inhibition of luminol chemiluminescence by some novel metal complexes
AU - Gölcü, Ayşegül
AU - Wheatley, R. Alan
AU - Demirelli, Havva
AU - Tümer, Mehmet
AU - Dolaz, Mustafa
PY - 2010
Y1 - 2010
N2 - In this study, we prepared two different type complex groups. One of them is based on Schiff base (A1, A2 and A3) Cd(II) complexes, another one is β-blockers (acebutolol (ACE), atenolol (ATE) and propranolol (PRO)) Cu(II) complexes. The ligands and their metal complexes were characterized by elemental analyses, mass spectra, 1H(13C) NMR spectra, FT-IR, UV-vis, conductivity measurements and thermal analysis studies. Protonation constants of the ligands and stability constants of their complexes were determined by potentiometric titration method at 25.00±0.02 °C under nitrogen atmosphere and ionic strength of 0.10 M sodium perchlorate. For the Schiff bases, the solvent was 50% DMSO-water; for the β-blockers, it was 50% methanol-water media. The effects of these properties on the observed inhibition of chemiluminescence and the analytical implications of the results are also discussed. Two sets of novel coordination compounds were found to inhibit the intense chemiluminescence reaction in DMSO solution between luminol and dioxygen in the presence of a strong base.
AB - In this study, we prepared two different type complex groups. One of them is based on Schiff base (A1, A2 and A3) Cd(II) complexes, another one is β-blockers (acebutolol (ACE), atenolol (ATE) and propranolol (PRO)) Cu(II) complexes. The ligands and their metal complexes were characterized by elemental analyses, mass spectra, 1H(13C) NMR spectra, FT-IR, UV-vis, conductivity measurements and thermal analysis studies. Protonation constants of the ligands and stability constants of their complexes were determined by potentiometric titration method at 25.00±0.02 °C under nitrogen atmosphere and ionic strength of 0.10 M sodium perchlorate. For the Schiff bases, the solvent was 50% DMSO-water; for the β-blockers, it was 50% methanol-water media. The effects of these properties on the observed inhibition of chemiluminescence and the analytical implications of the results are also discussed. Two sets of novel coordination compounds were found to inhibit the intense chemiluminescence reaction in DMSO solution between luminol and dioxygen in the presence of a strong base.
KW - Complexes
KW - Luminol chemiluminescence
KW - Potentiometric studies
KW - Schiff base ligands
KW - ß-blockers
KW - Stability constants
UR - http://www.scopus.com/inward/record.url?scp=78651317146&partnerID=8YFLogxK
U2 - 10.2174/157341110790945526
DO - 10.2174/157341110790945526
M3 - Article
AN - SCOPUS:78651317146
SN - 1573-4110
VL - 6
SP - 144
EP - 153
JO - Current Analytical Chemistry
JF - Current Analytical Chemistry
IS - 2
ER -