ISSN:
1435-1536
Schlagwort(e):
Mixed valence complex
;
Prussian blue analog
;
intervalence charge transfer
;
polyion complex
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
Notizen:
Abstract Prussian blue and its analogs bonded to poly(vinylamine hydrochloride) (PVAm · HCl) containing FeII or FeIII and M2+ (M=Fe, Co, Cu) in a 1∶1 molar ratio were obtained by the reaction of [Fe(CN)6] n− (n=3,4) with M2+ ion-PVAm · HCl mixture in aqueous solution. Under a limited polymer concentration (TVAm/TFe over 10), these polymer complexes thus obtained were stable and soluble in water. By casting these solutions, colored films can be produced. The formation of Prussian blue and its analogs bonded to PVAm · HCl was also investigated by the Benesi-Hildebrand method. The molar extinction coefficients of intervalence charge transfer (FeII→FeIII, CoII→FeIII, FeII→CuII) band for MFe(CN)6](n−2)− bound to PVAm · HCl (M=Fe, Co, Cu) were found to be 10,100−9601 · mol−1 · cm−1 at 25
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01418454
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