New Lamellar Silver Thiolate Coordination Polymers with Tunable Photoluminescence Energies by Metal Substitution
New Lamellar Silver Thiolate Coordination Polymers with Tunable Photoluminescence Energies by Metal Substitution
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DOI：
10.1021/acs.inorgchem.8b01257
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发表时间：
2019-01-07
影响因子：
4.6
通讯作者：
Demessence, Aude
中科院分区：
文献类型：
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作者：
Veselska, Oleksandra;Dessal, Caroline;Demessence, Aude
首次描述了两种层状银硫酸盐配位聚合物[Ag(p-SPhCO2H)](n)(1)和[Ag(p-SPhCO2Me)](n)(2)的结构。它们的无机部分由不互穿的硫酸盐配体分隔的扭曲的Ag3S3蜂窝网络组成。这两种化合物的主要区别在于羧酸的二聚氢键。深入的光物理研究表明，硫代酸银具有多发射特性，表明其具有发光热致变色性。更有趣的是，异质金属层状化合物[Ag0.85Cu0.15(p-SPhCO2H)](n)(3)的合成，可以获得混合金属硫酸盐配位聚合物，并可以调整光物理性质，激发波长从绿色振动发光到单个红色发射带。
The structures of two lamellar silver thiolate coordination polymers [Ag(p-SPhCO2H)](n) (1) and [Ag(p-SPhCO2Me)](n) (2) are described for the first time. Their inorganic part is composed of distorted Ag3S3 honeycomb networks separated by noninterpenetrated thiolate ligands. The main difference between the two compounds arises from dimeric hydrogen bonds present for the carboxylic acids. Indepth photophysical studies show that the silver thiolates exhibit multiemission properties, implying luminescence thermochromism. More interestingly, the synthesis of a heterometallic lamellar compound, [Ag0.85Cu0.15(p-SPhCO2H)](n) (3), allows to obtain mixed metal thiolate coordination polymers and to tune the photophysical properties with the excitation wavelengths from a green vibronic luminescence to a single red emission band.