Synthesis and crystal structure of the coordination compound of pyridoxine with manganese sulfate

Furmanova N.G.; Verin I.A.; Shyityeva N.; Sulaimankulov K.S.; Berdalieva Zh.; Resnyanskii V.F.; Duishenbaeva A.T.

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Synthesis and crystal structure of the coordination compound of pyridoxine with manganese sulfate

机译：吡ido醇与硫酸锰配位化合物的合成及晶体结构

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The reaction of pyridoxine with manganese sulfate in an aqueous solution gave the coordination compound MnSO _4 · 2C _8H _(11)O _3N · 2H _2O (I). The structure of I was determined from single-crystal X-ray diffraction data. In the centrosymmetric complex (sp. gr. P1?, Z=1), the Mn atom is coordinatedby two pyridoxine molecules and two water molecules, thus adopting an octahedral coordination. The sulfate anion is also at a center of symmetry and, consequently, is disordered. The pyridoxine molecules are coordinated to the metal atom through the oxygen atoms of the deprotonated hydroxyl group and the CH _2OH group that retains the hydrogen atom. The nitrogen atom is protonated in such a way that the heterocycle assumes a pyridinium character. The crystal structure also contains six water molecules of crystallization. A thermogravimetric study showed that the decomposition of I occurs in several successive steps, such as dehydration, the combustion of organic ligands, and the formation of an inorganic residue.

机译：吡ido醇与硫酸锰在水溶液中的反应得到配位化合物MnSO _4·2C _8H _（11）O _3N·2H _2O（I）。从单晶X射线衍射数据确定I的结构。在中心对称络合物（sp.gr.P1α，Z ＝ 1）中，Mn原子由两个吡ido醇分子和两个水分子配位，因此采用八面体配位。硫酸根阴离子也处于对称中心，因此是无序的。吡ido醇分子通过去质子化羟基的氧原子和保留氢原子的CH _2OH与金属原子配位。氮原子被质子化，使得杂环具有吡啶鎓特性。晶体结构还包含六个结晶水分子。热重研究表明，I的分解发生在几个连续的步骤中，例如脱水，有机配体的燃烧以及无机残基的形成。

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《Crystallography reports》 |2011年第6期|共5页
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Furmanova N.G.; Verin I.A.; Shyityeva N.; Sulaimankulov K.S.; Berdalieva Zh.; Resnyanskii V.F.; Duishenbaeva A.T.;
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Synthesis and crystal structure of the coordination compound of pyridoxine with manganese sulfate

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