Fluorescence quenching and complexation behaviour of tetraphenylporphyrin with some divalent metal ions

被引：12

作者：

Azim, SA ^{[1
]}

ElKemary, MA ^{[1
]}

ElDaly, SA ^{[1
]}

ElDaly, HA ^{[1
]}

ElKhouly, ME ^{[1
]}

Ebeid, EM ^{[1
]}

机构：

[1] TANTA UNIV,FAC EDUC,DEPT CHEM,KAFER ELSHEIKH,EGYPT

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1996年 / 92卷 / 05期

关键词：

D O I：

10.1039/ft9969200747

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fluorescence quenching and complexation behaviour of tetraphenylporphyrin (TPP) have been studied using fluorescence, electronic absorption spectra and the stopped-flow technique. The second-order fluorescence quenching rate constant (k(q)) increases in the order Ni2+ > Co2+ > Hg2+ > Sn2+ in methanol. Both Ni2+ and Co2+ ions form relatively stable complexes with TPP and the complex formation in this case is slow. In the case of Hg2+ and Sn2+, complex formation is fast and the formed complexes are less stable compared with NiTPP and CoTPP complexes. The activation and thermodynamic parameters of the complexation process have been evaluated.

引用

页码：747 / 751

页数：5

共 50 条

[1] Interaction of Clofazimine with Divalent Metal Ions: A Fluorescence Quenching Study
Mohd, Ayaz
Khan, Aftab Aslam Parwaz
Bano, Shaista
Siddiqi, K. S.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2011, 32 (10) : 1465 - 1469
[2] Interaction and fluorescence quenching study of levofloxacin with divalent toxic metal ions
Mohd, Ayaz
Bano, Aftab Aslam Parwaz Khan Shaista
Siddiqi, Khwaja S.
EURASIAN JOURNAL OF ANALYTICAL CHEMISTRY, 2010, 5 (02): : 177 - 186
[3] Effect of pH and Metal Ions on Protein-Metal Complexation Modeled by Fluorescence Quenching
Churchill, Claire M.
Brake, Tianna
Cuss, Chad W.
JOURNAL OF CHEMICAL EDUCATION, 2024, 102 (01) : 316 - 323
[4] Spectroscopic and thermodynamic studies of complexation of some divalent metal ions with isatin-β-thiosemicarbazone
Konstantinovic, S. S.
Radovanovic, B. C.
Ilic, S. B.
Konstantinovic, B. V.
CHEMICAL PAPERS, 2007, 61 (06): : 485 - 489
[5] Potentiometric Investigation on Complexation of Divalent Transition Metal Ions with Some Zwitterionic Buffers and Triazoles
Khalil, M. M.
Radalla, A. M.
Mohamed, A. G.
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2009, 54 (12): : 3261 - 3272
[6] Spectroscopic and thermodynamic studies of complexation of some divalent metal ions with isatin-β-thiosemicarbazone
S. S. Konstantinović
B. C. Radovanović
Z. B. Todorović
S. B. Ilić
B. V. Konstantinović
Chemical Papers, 2007, 61 : 485 - 489
[7] The complexation behaviour of crown ethers with some divalent transition metal and silver ions in a 40% (v/v) ethanol + water medium
Poussereau, Sandrine
Blondin, Geneviève
Chottard, Geneviève
Guilhem, Jean
Tchertanov, Luba
Rivière, Eric
Girerd, Jean-Jacques
2001, Wiley-VCH Verlag
[8] Complexation behaviour of glutathione with metal ions
Singh, BK
ASIAN JOURNAL OF CHEMISTRY, 2005, 17 (01) : 1 - 32
[9] Detailed studies on complexation behaviour and mechanism of fluorescence quenching of naphthalene linked hydroxamic acid with transition metal ions by UV-visible and fluorescence spectra
De Costa, MDP
Jayasinghe, WAPA
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 162 (2-3) : 591 - 598
[10] EFFECTS OF DIVALENT METAL-IONS ON THE FLUORESCENCE AND GLUCOSE-QUENCHING OF YEAST HEXOKINASE ISOZYMES
FELDMAN, I
FAME, T
JOURNAL OF INORGANIC BIOCHEMISTRY, 1982, 17 (02) : 121 - 129

← 1 2 3 4 5 →