| Solvent Effects on Complexation of Molybdenum（Ⅵ） with Nitrilotriacetic Acid in Different Aqueous Solutions of Propanol |
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| 引用本文： | MOHAMMADI Behrouz MOHAMMADI Jalalb. Solvent Effects on Complexation of Molybdenum（Ⅵ） with Nitrilotriacetic Acid in Different Aqueous Solutions of Propanol[J]. 中国化学, 2007, 25(3): 284-288. DOI: 10.1002/cjoc.200790056 |
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| 作者姓名： | MOHAMMADI Behrouz MOHAMMADI Jalalb |
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| 作者单位： | [1]Chemistry Department, Shahid Beheshti University, Tehran, Evin, Iran [2]Chemistry Department, Tabriz University, Tabriz, Iran |
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| 摘 要： | By using spectrophotometric and potentiometric techniques the formation constants of the species formed in the systems H^＋＋ Mo（Ⅵ）＋nitrilotriacetic acid and H^＋ ＋ nitrilotriacetic acid have been determined in aqueous solutions of propanol at 25 ℃ and constant ionic strength 0.1 molodm^-3 sodium perchlorate. The composition of the complex was determined by the continuous variation method. It was shown that molybdenum（Ⅵ） forms a mononuclear 1 ： 1 complex with nitrilotriacetic acid of the type MoO3L^-3 at -lg[H^＋] =5.8. The formation constants in various media were analyzed in terms of Kamlet and Taft＇s parameters. Linear relationships were observed when lg Ks was plotted versusp. Finally, the results were discussed in terms of the effect of solvent on complexation.
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| 关 键 词： | 丙醇水溶液 次氨基三乙酸 钼 络合反应 溶剂效应 |
| 修稿时间： | 2006-06-222006-11-10 |
Solvent Effects on Complexation of Molybdenum(VI) with Nitrilotriacetic Acid in Different Aqueous Solutions of Propanol |
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| Behrouz Mohammadi,Jalal Mohammadi. Solvent Effects on Complexation of Molybdenum(VI) with Nitrilotriacetic Acid in Different Aqueous Solutions of Propanol[J]. Chinese Journal of Chemistry, 2007, 25(3): 284-288. DOI: 10.1002/cjoc.200790056 |
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| Authors: | Behrouz Mohammadi Jalal Mohammadi |
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| Affiliation: | Chemistry Department, Tabriz University, Tabriz, Iran |
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| Abstract: | By using spectrophotometric and potentiometric techniques the formation constants of the species formed in the systems H++Mo(VI)+nitrilotriacetic acid and H++nitrilotriacetic acid have been determined in aqueous solutions of propanol at 25 °C and constant ionic strength 0.1 mol·dm?3 sodium perchlorate. The composition of the complex was determined by the continuous variation method. It was shown that molybdenum(VI) forms a mononuclear 1:1 complex with nitrilotriacetic acid of the type MoO3L?3 at ?lg[H+]=5.8. The formation constants in various media were analyzed in terms of Kamlet and Taft's parameters. Linear relationships were observed when lg KS was plotted versus p*. Finally, the results were discussed in terms of the effect of solvent on complexation. |
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| Keywords: | solvent effect molybdenum(VI) nitrilotriacetic acid (NTA) propanol |
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