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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Seven-coordinated iron(II) spin-crossover molecules: some learning from iron substitution in [FexMn1-x(L222N3O2)(CN)(2)]center dot H2O solid solutionst
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Seven-coordinated iron(II) spin-crossover molecules: some learning from iron substitution in [FexMn1-x(L222N3O2)(CN)(2)]center dot H2O solid solutionst

机译：七个协调的铁（II）旋转分子：在[FEXMN1-X（L2222N3O2）（CN）（2）]中央点H2O固体溶液中的铁取代中的一些学习

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摘要

The purpose of this work is to study the influence of the substitution of Fe(ii) by Mn(ii) on the spin crossover behaviour of [Fe Mn1-x(L222N3O2)(CN)(2)]center dot H2O solid solutions where L222N3O2 is a macrocyclic ligand = 2,13-dimethyl-6,9-dioxa-3,12,18-triazabicyclo[12.3.1]-octadeca-1(18),2,12,14,16-pentaene. The pure Fe(s) complex is known to present a change of the coordination number from 7 at high temperature to 6 at low temperature. The target of the solid solution study was to investigate the effect of metal dilution on this coordination change. We have then measured the thermal spin crossover features as well as the metastable HS state lifetime generated by rapid thermal quenching, which was probed through the determination of the T(TIESST) value. A discussion of the spin-state as a function of temperature is given based on the phase diagram of this series and based on the investigation of the crystal structure of the [Mn(L222N3O2) (CN)(2)]center dot H2O complex and its comparison with the published IFe(L222N3O2)(CN)2]center dot H2O master compound.
机译：本作作品的目的是研究Fe（II）取代对Mn（II）的影响[Fe Mn1-x（L222N3O2）（CN）（2）]中心点H2O固体溶液的旋转交叉行为L222N3O2是大环配体= 2,13-二甲基-6,9-DIOxA-3,12,18-三氮杂双环[12.3.1] -2.3.1] -octadeca-1（18），2,12,14,16-五烯。已知纯Fe（S）复合物在低温下在高温下在高温下呈现与7的配位数的变化。固体溶液研究的靶标是研究金属稀释对该协调变化的影响。然后，我们测量了热自旋交叉特征以及通过快速热淬火产生的亚稳态寿命，这通过确定T（Tiesst）值探讨。基于该系列的相图给出了作为温度的函数的自旋状态的讨论，并基于[Mn（L222N3O2）（CN）（2）]中心点H2O复合物的晶体结构的研究它与已发表的IFE（L222N3O2）（CN）2]中心点H2O主体化合物的比较。

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