Pyridinderivate als Komplexbildner III. Komplexbildung des dreiwertigen Eisen-Ions mit 1,10-Phenanthrolin und α,α′-Dipyridyl
✍ Scribed by G. Anderegg
- Publisher
- John Wiley and Sons
- Year
- 1962
- Tongue
- German
- Weight
- 834 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
blanche contenant 39 mg d'azote peptidique, ce qui correspond h 195 mg de base libre d'Argsvasotocine. Un Cchantillon de cette poudre, sdchd au vide 8 h 100' (perte de poids: 12%), donne l'analyse d u n diacCtate. Le produit est homogkne h l'dlectrophorese: E& = 0,7 His; E:,9 = 0,95 Try (rdvilation par ninhydrine, FOLIN, chlore et SAKAGUCHI). La ditermination selon MOORE & STEIN^') des acides a m i d s prisents, effectuee a p r b hydrolyse totale (HCI 6 ~. 24 h h l l O o , en l'absence d'oxyghe), a fourni les rCsultats suivants3*) exprimes en rapports moldculaires (entre parentheses les rCsultats calculCs) : cystine 0,94 (1,OO); Tyr 0,94 (1,OO) ; Ile 1,04 (1,OO) ; Glu 1,09 (1,OO) ; Asp 1,11 (1,OO) ; Pro 1,05 (1,OO) ; Arg 0,96 (1,OO); Gly 1,02 (1,OO) ; NH, 3.34 (3.00). C&yH67012Ni6S2 (lo50,3) Calc. C 49,2 H 6,4 0 18,3 N 20,O S 6,1% (1170,4)
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## Abstract The complex formation of Mg^2+^, Ca^2+^, Pb^2+^, Mn^2+^, Fe^2+^, C0^2+^, Ni^2+^, Cu^2+^, Zn^2+^, Cd^2+^, Hg^2+^ and Cu^+^ with l,l0‐Phenanthroline and K, α′‐Dipyridil have been investigated using potentiometric measurements (20°, μ = 0,l (NaNO~3~)). Since some of these complexes are for
## Abstract The enthalpy changes involved in the formation of the proton and the metal complexes of 1,10‐phenanthroline (phen) and α,α′‐bipyridyl (dip) have been determined, using a direct calorimetric method.