Complexation studies on inositol-phosphates. II. Alkali-metal complexes of D-myo-inositol 1,2,6 trisphosphate
| Autor: | H. Bieth, Gilbert Schlewer, Bernard Spiess |
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| Rok vydání: | 1991 |
| Předmět: |
Models
Molecular Inositol Phosphates Inorganic chemistry Molecular Conformation Cesium Protonation Lithium Biochemistry Medicinal chemistry Inorganic Chemistry Metal chemistry.chemical_compound Bromide Inositol Qualitative inorganic analysis Inositol phosphate chemistry.chemical_classification Chemistry Ligand Sodium Cations Monovalent Rubidium Alkali metal Metals visual_art Potassium Potentiometry visual_art.visual_art_medium Software Hydrogen |
| Zdroj: | Journal of Inorganic Biochemistry. 41:37-44 |
| ISSN: | 0162-0134 |
| DOI: | 10.1016/0162-0134(91)85007-4 |
| Popis: | The complexation properties of the D- myo -inositol 1,2,6 trisphosphate (Ins(1,2,6)P 3 towards Li + Na + ,K + , Rb + , and Cs + cations were studied at 25°C in a 0.1 M tetra-n-butylammonium bromide medium. For all cations, mononuclear and protonated species were found. For smaller cations (Li + , Na + , and K + ) a dinuclear complex was also put into evidence. The main characteristic of the complexes is its high stability; and of the ligand, its nonselectivity. The Ins(1,2,6)P 3 -K system was ascertained using Sammartano's method which additionally enabled the influence of various K + concentrations on the protonations constants to be considered. |
| Databáze: | OpenAIRE |
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