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首页> 外文期刊>Journal of structural chemistry >CRYSTAL STRUCTURES OF BI- AND TETRANUCLEAR HALIDE COMPLEXES OF BI(III) WITH 2,6-DIMETHYL- AND 2,4,6-TRIMETHYLPYRIDINE CATIONS
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CRYSTAL STRUCTURES OF BI- AND TETRANUCLEAR HALIDE COMPLEXES OF BI(III) WITH 2,6-DIMETHYL- AND 2,4,6-TRIMETHYLPYRIDINE CATIONS

机译：Bi（III）的双核和四核卤化物配合物的晶体结构，具有2,6-二甲基和2,4,6-三甲基吡啶阳离子

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摘要

Bismuth(III) halide complexes (halogenobismuthates) attract attention due to their physical and chemical properties, in particular, photochromic [1-3], ferroelectric [4-6], fluorescence [7, 8], solvato- [9], and thermochromic [10, 11] properties. As repeatedly mentioned [12], unpredictable synthesis results are the most significant barrier on the way to the rational design of materials with desired properties on their basis: there is currently no model that would unite reaction conditions, composition, and structure of the products. This is due to high lability of halogenobismuthates caused by a relatively low energy of the Bi(III)-X bond (X = Cl, Br, I) and fast kinetics of ligand substitution in the coordination sphere. It was mentioned in [13] that the most important factors affecting the structure of the product include the nature of the cation whose salt is used in the synthesis. Thus, obtaining data on the crystal structure of halogenobismuthates(III) formed in the presence of certain cations is still an urgent task, since the accumulation of such data can help to find the above patterns.
机译：铋（III）卤化物复合物（卤素ismishate）由于其物理和化学性质而引起注意，特别是光致变色[1-3]，铁电[4-6]，荧光[7,8]，Solvato-[9]，以及Thermochromic [10,11]性质。如重复提到[12]，不可预测的合成结果是在其基础上具有所需性质的材料理性设计的最重要的屏障：目前没有模型，可以联合反应条件，组成和产品结构。这是由于在协调球中的Bi（III）-X键（X = Cl，Br，I）的相对低的能量引起的卤素ismishate的高易弛豫，并且在协调球中的配体取代的快速动力学。它在[13]中提到，影响产品结构的最重要因素包括阳离子在合成中使用的阳离子的性质。因此，获得关于在某些阳离子存在的存在中形成的卤素ismishate（III）的晶体结构的数据仍然是一个紧迫的任务，因为这些数据的积累可以有助于找到上述模式。

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