Complexes of Chromium(III) with 2,3-Dihydroxynaphthalene-6-sulfonic Acid and 4,5-Dihydroxynaphthalene-2,7-disulfonic Acid in Aqueous Solution

Photoinduced Proton and Charge Transfers in a Dihydroxynaphthalene Derivative: Chromotropic Acid

Elisabeth Bardez,*,† Valérie Alain,† EÄ milie Destandau,† Aleksandre Fedorov,‡ and José M. G. Martinho‡ Laboratoire de Chimie Générale, ConserVatoire National des Arts et Métiers, 292 rue Saint-Martin, 75003 Paris, and Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (CNRS UMR 8531), Ecole Normale Supérieure de Cachan, 61 AVenue du Président Wilson, 94235 Cacha...

study of dna interaction with ethylenediaminetetraacetic acid and sesamol food additives

برهمکنش dnaتیموس گاوی طبیعی (ct-dna) با اتیلن دی آمین تترااستات (edta)در بافرtris-hcl با 8/7 ph ( دراین ph،edta به نمک دی سدیم تبدیل می شود) وسسامول در بافر tris-hcl با4/7 ph مورد بررسی قرار گرفته است. edta و سسامول استفاده فراوانی در تکنولوژی غذایی و صنعت شیمیایی دارند. مدل اتصال dna مربوط بهedta بوسیله اسپکتروفتومتری جذب، دورنگ نمایی حلقوی(cd)، ویسکومتری وژل الکتروفورز بررسی شده است. طیفuv ...

Photooxidation of 1,5-dihydroxynaphthalene with iridium complexes as singlet oxygen sensitizers.

Photooxidation reactions of 1,5-dihydroxynaphthalene (DHN) have been carried out in the presence of cyclometalated neutral and cationic iridium (Ir) complexes 1-6 as singlet oxygen ((1)O(2)) sensitizers in order to investigate the (1)O(2) generation quantum yield and photosensitizing durability of the complexes. The reactions allowed a successful kinetic study to provide the pseudo-first-order ...

Equilibrium studies on chromium(III) complexes of salicylic acid and salicylic acid derivatives in aqueous solution.

The complexes of chromium(III) ion formed by salicylic acid, SA(H(2)L), and its derivatives (H(2)L): 5-nitrosalicylic acid (5-NSA), 5-sulphosalicylic acid (5-SSA) were investigated by means of potentiometry and spectroscopy, at 25 degrees C and in ionic strength of 0.1 M KNO(3) and 0.1 M KCl, respectively. Over the acidic pH range, the coordination of Cr(III) ion to SA and its derivatives in 1 ...

Thermodynamic study of dioxovanadium (V) Complexes with p-sulphonato-calix [6] arene in aqueous solution