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Study of Binary Complexes of Several Transition Metal Ions with D-Naproxen in Methanol—Water Medium by Potentiometry
Zhu, Y. C., Yan, S. C., Dong, X. N., Zuo, G. F., Wu, J. G. and Deng, R. W. Study of Binary Complexes of Several Transition Metal Ions with D-Naproxen in Methanol—Water Medium by Potentiometry Chemical Papers, Vol.57, No. 2, 2003, 87-90
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n572a87.pdf
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572a87.pdf |
application/pdf |
152.92KB |
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| Author(s) |
Zhu, Y. C.
Yan, S. C.
Dong, X. N.
Zuo, G. F.
Wu, J. G.
Deng, R. W.
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| Title |
Study of Binary Complexes of Several Transition Metal Ions with D-Naproxen in Methanol—Water Medium by Potentiometry
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| Journal name |
Chemical Papers
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| Publication date |
2003
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| Year available |
2003
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| Volume number |
57
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| Issue number |
2
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| ISSN |
0366-6352
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| Start page |
87
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| End page |
90
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2003
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| Language |
english
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| Subject |
290000 Engineering and Technology
290600 Chemical Engineering
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| Abstract/Summary |
Binary complexes of D-naproxen (HL) with several transition metal ions M(II) (M = Cd, Co, Ni,Cu, and Zn) were studied potentiometrically in 60 vol. % methanol—water at 25◦C and I(KNO3)= 0.2 mol dm−3. The stability constant of binary complexes was estimated by using the computerprograms MINIQUAD and MIQUV. For the ligand, the protonation constant increased, while thecontent of methanol increased in mixed solvent. The results show that the stability constants of thebinary complexes ML2 for the different metal ions, which were found to be βCdL2 < βCoL2 < βNiL2< βCuL2 > βZnL2 , have an Irving—Williams order.
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