首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of octa­kis­(4-meth­oxy­pyridinium) bis­(4-meth­oxy­pyridine-κN)tetra­kis­(thio­cyanato-κN)ferrate(III) bis­(4-meth­oxypyri­dine-κN)pentakis­(thio­cyanato-κN)ferrate(III) hexa­kis­(thio­cyanato-κN)ferrate(III) with iron in three different octa­hedral coordination environments
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Crystal structure of octa­kis­(4-meth­oxy­pyridinium) bis­(4-meth­oxy­pyridine-κN)tetra­kis­(thio­cyanato-κN)ferrate(III) bis­(4-meth­oxypyri­dine-κN)pentakis­(thio­cyanato-κN)ferrate(III) hexa­kis­(thio­cyanato-κN)ferrate(III) with iron in three different octa­hedral coordination environments

机译:辛基(4-甲氧基吡啶)双(4-甲氧基吡啶-κN)四(硫氰酸根-κN)高铁酸盐(III)的晶体结构-κN)高铁(III)在三个不同的八面体配位环境中

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摘要

The crystal structure of the title salt, (C6H8NO)8[Fe(NCS)4(C6H7NO)2][Fe(NCS)5(C6H7NO)]2[Fe(NCS)6], comprises three negatively charged octa­hedral FeIII complexes with different coordination environments in which the FeIII atoms are coordinated by a different number of thio­cyanate anions and 4-meth­oxy­pyridine ligands. Charge balance is achieved by 4-meth­oxy­pyridinium cations. The asymmetric unit consists of three FeIII cations, one of which is located on a centre of inversion, one on a twofold rotation axis and one in a general position, and ten thio­cyanate anions, two 4-meth­oxy­pyridine ligands and 4-meth­oxy­pyridinium cations (one of which is disordered over two sets of sites). Beside to Coulombic inter­actions between organic cations and the ferrate(III) anions, weak N—H⋯S hydrogen-bonding inter­actions involving the pyridinium N—H groups of the cations and the thio­cyanate S atoms of the complex anions are mainly responsible for the cohesion of the crystal structure.
机译:标题盐(C6H8NO)8 [Fe(NCS)4(C6H7NO)2] [Fe(NCS)5(C6H7NO)] 2 [Fe(NCS)6]的晶体结构包含三个带负电的八面体Fe III 配合物,其中Fe III 原子被不同数量的硫氰酸根阴离子和4-甲氧基吡啶配体配位。电荷平衡是通过4-甲氧基氧吡啶鎓阳离子实现的。不对称单元由三个Fe III 阳离子组成,其中一个位于反转中心,一个位于两倍旋转轴上,一个位于大体上,以及十个硫氰酸根阴离子,两个4-甲氧基吡啶配体和4-甲氧基吡啶鎓阳离子(其中一个在两组位点上无序)。除了有机阳离子和高铁酸盐(III)阴离子之间的库仑相互作用外,涉及阳离子的吡啶鎓NH基团和配位阴离子的硫氰酸盐S原子的弱NHS氢键相互作用也是造成内聚力的主要原因的晶体结构。

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