Acid–base equilibria of the aqua adducts of Ru(II) arene complexes with functionalised pyridines
Acid–base equilibria of the aqua adducts of Ru(II) arene complexes, general formulae [(η 6 - p -cymene)Ru (L 1−3 )Cl 2 ] where L 1 = 3-acetylpyridine ( 1 ), L 2 = 4-acetylpyridine ( 2 ) and L 3 = 2-amino-5-chloropyridine ( 3 ), then [(η 6 - p -cymene)Ru(HL 4 )Cl 2 ] with HL 4 = isonicotinic acid...
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| Veröffentlicht in: | Journal of the Iranian Chemical Society 2012-02, Vol.9 (1), p.7-12 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Acid–base equilibria of the aqua adducts of Ru(II) arene complexes, general formulae [(η
6
-
p
-cymene)Ru (L
1−3
)Cl
2
] where L
1
= 3-acetylpyridine (
1
), L
2
= 4-acetylpyridine (
2
) and L
3
= 2-amino-5-chloropyridine (
3
), then [(η
6
-
p
-cymene)Ru(HL
4
)Cl
2
] with HL
4
= isonicotinic acid (
4
); [(η
6
-
p
-cymene)Ru(HL
5−8
)Cl] where H
2
L
5
= 2,3-pyridine dicarboxylic acid (
5
), H
2
L
6
= 2,4-pyridine dicarboxylic acid (
6
), H
2
L
7
= 2,5-pyridine dicarboxylic acid (
7
) and H
2
L
8
= 2,6-pyridine dicarboxylic acid (
8
) have been studied. p
K
a
values were determined by potentiometry at 25 °C and constant ionic strength of 0.1 M NaNO
3
. The assumed equilibria were confirmed by UV and
1
H-NMR spectroscopy. |
|---|---|
| ISSN: | 1735-207X 1735-2428 |
| DOI: | 10.1007/s13738-011-0001-3 |