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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Manganese(II) chloride complexes with pyridine N-oxide (PNO) derivatives and their solid-state structures
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Manganese(II) chloride complexes with pyridine N-oxide (PNO) derivatives and their solid-state structures

机译：氯化锰（II）与吡啶N-氧化物（PNO）衍生物的配合物及其固态结构

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Three manganese(II) N-oxide complexes have been synthesized from the reaction of manganese(II) chloride with either pyridine N-oxide (PNO), 2-methyl­pyridine N-oxide (2MePNO) or 3-methyl­pyridine N-oxide (3MePNO). The compounds were synthesized from methano­lic solutions of MnCl2·4H2O and the respective N-oxide, and subsequently characterized structurally by single-crystal X-ray diffraction. The compounds are catena-poly[[aqua­chlorido­manganese(II)]-di-μ-chlorido-[aqua­chlorido­manganese(II)]-bis­(μ-pyridine N-oxide)], [MnCl2(C5H5NO)(H2O)]n or [MnCl2(PNO)(H2O)]n (I), catena-poly[[aqua­chlorido­man­gan­ese(II)]-di-μ-chlorido-[aqua­chlorido­manganese(II)]-bis­(μ-2-methyl­pyridine N-oxide)], [MnCl2(C6H7NO)(H2O)]n or [MnCl2(2MePNO)(H2O)]n (II), and bis­(μ-3-methyl­pyridine N-oxide)bis­[di­aqua­dichlorido­manganese(II)], [Mn2Cl4(C6H7NO)2(H2O)4] or [MnCl2(3MePNO)(H2O)2]2 (III). The MnII atoms are found in pseudo-octa­hedral environments for each of the three complexes. Compound I forms a coordination polymer with alternating pairs of bridging N-oxide and chloride ligands. The coordination environment is defined by two PNO bridging O atoms, two chloride bridging atoms, a terminal chloride, and a terminal water. Compound II also forms a coordination polymer with a similar metal cation; however, the coordination polymer is bridged between MnII atoms by both a single chloride and 2MePNO. The distorted octahedrally coordinated metal cation is defined by two bridging 2MePNO trans to each other, two chlorides, also trans to one another in the equatorial (polymeric) plane, and a terminal chloride and terminal water. Finally, complex III forms a dimer with two bridging 3MePNOs, two terminal chlorides and two terminal waters forming the six-coordinate metal environment. All three compounds exhibit hydrogen bonding between the coordinating water(s) and terminal chlorides.
机译：从氯化锰（II）与吡啶N-氧化物（PNO），2-甲基吡啶N-氧化物（2MePNO）或3-甲基吡啶N-氧化物（3MePNO）的反应合成了三种锰（II）N-氧化物配合物。由MnCl2·4H2O的甲醇溶液和各自的N-氧化物合成化合物，然后通过单晶X射线衍射对其结构进行表征。化合物为阳离子-聚[[[水氯化锰（II）]-二-μ-氯基-[水氯化锰（II）]-双（μ-吡啶N-氧化物）]，[MnCl2（C5H5NO）（H2O）] n或[ MnCl2（PNO）（H2O）] n（I），链-聚[[[水氯化锰（II）]-二-μ-氯代-[水氯化锰（II）]-双（μ-2-甲基吡啶N-氧化物）]， [MnCl2（C6H7NO）（H2O）] n或[MnCl2（2MePNO）（H2O）] n（II）和双（μ-3-甲基吡啶N-氧化物）双[二氯二氯锰（II）]，[Mn2Cl4（C6H7NO） 2（H2O）4]或[MnCl2（3MePNO）（H2O）2] 2（III）。 MnII原子在伪八面体环境中被发现存在于三种配合物中。化合物I形成具有交替配对的桥接N-氧化物和氯化物配体的配位聚合物。配位环境由两个PNO桥接的O原子，两个氯化物桥接的原子，一个末端氯和一个末端水定义。化合物Ⅱ还形成具有相似金属阳离子的配位聚合物。然而，配位聚合物是通过单氯化物和2MePNO在MnII原子之间桥接的。畸变的八面体配位金属阳离子是由两个桥接的2MePNO互为反式，两个氯化物（同样在赤道（聚合物）平面中互为反式）以及一个末端氯化物和末端水所定义。最终，络合物III与两个桥接3MePNO，两个末端氯化物和两个末端水形成二聚体，形成六配位金属环境。所有这三种化合物在配位水和末端氯化物之间均显示氢键。

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