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منغنات

بنية أنيون المنغنات

المنغنات (أو المنجنات) هو أنيون متعدد الذرات صيغته الكيميائية 2−[MnO4]، وتتألف البنية من ذرة منغنيز مركزية، تكون بحالة أكسدة مقدارها +6؛ وتكون محاطة بأربع ذرات من الأكسجين، وتكون الشحنة الكهربائية الكلية -2. تعد المنغنات المركبات الوحيدة المعروفة للمنغنيز بحالة الأكسدة +6.[1]

يستخدم مصطلح منغنات أحياناً للإشارة إلى الأنيونات الأخرى الحاوية على المنغنيز ولكن ليس بالضرورة في حالة الأكسدة +6، إنما أيضاً في حالة الأكسدة +5 أو +4.[2]

التحضير

تحضر أملاح المنغنات السداسي من التحليل الإشعاعي لمحاليل ممددة من البيرمنغنات.[3][4]

طالع أيضاً

المراجع

  1. ^ Cotton, F. Albert؛ Wilkinson, Geoffrey (1980)، Advanced Inorganic Chemistry (ط. 4th)، New York: Wiley، ص. 746، ISBN:0-471-02775-8.
  2. ^ International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): Royal Society of Chemistry–International Union of Pure and Applied Chemistry (IUPAC). (ردمك 0-85404-438-8).
  3. ^ Rush، J. D.؛ Bielski، B. H. J. (1995)، "Studies of Manganate(V), -(VI), and -(VII) Tetraoxyanions by Pulse Radiolysis. Optical Spectra of Protonated Forms"، Inorg. Chem.، ج. 34، ص. 5832–38، DOI:10.1021/ic00127a022
  4. ^ Lee، Donald G.؛ Chen، Tao (1989)، "Oxidation of hydrocarbons. 18. Mechanism of the reaction between permanganate and carbon-carbon double bonds"، J. Am. Chem. Soc.، ج. 111، ص. 7534–38، DOI:10.1021/ja00201a039.

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