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Copper Iodide Clusters Coordinated by Emissive Cyanobiphenyl-Based Ligands
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-02-24 , DOI: 10.1021/acs.inorgchem.1c03876 Raquel Utrera-Melero 1 , Florian Massuyeau 1 , Camille Latouche 1 , Franck Camerel 2 , Sandrine Perruchas 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-02-24 , DOI: 10.1021/acs.inorgchem.1c03876 Raquel Utrera-Melero 1 , Florian Massuyeau 1 , Camille Latouche 1 , Franck Camerel 2 , Sandrine Perruchas 1
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Copper(I) halides are currently the subject of intensive research because of their rich photophysical properties combined with economic and eco-friendly advantages for practical applications. The molecular copper iodide cluster of the general formula [Cu4I4L4] (L = ligand) is a well-known photoluminescent compound, and the possibility to enlarge the panel of its photophysical properties is studied here, by exploring ligands bearing a distinct emitter. The comparative study of five copper iodide clusters coordinated by different phosphine ligands functionalized by the emissive cyanobiphenyl (CBP) group is thus described in this work. The emissive properties of the ligands have a great impact onto the photophysical properties of the cluster. Compared with classical [Cu4I4L4] copper iodide clusters, the origin of the emission bands is largely modified. The CBP moiety of electron acceptor character significantly lowers in energy the vacant orbitals and consequently affects the global energetic layout. These clusters present dual emission based on two different emissive centers which interplay through energy transfer. This study demonstrates that the design of original ligands is an effective approach to enrich the photophysical properties of the appealing family of copper halide complexes.
中文翻译：
发射性氰基联苯配体配位的碘化铜簇
卤化铜 (I) 是目前深入研究的主题，因为它们具有丰富的光物理特性以及实际应用的经济和环保优势。分子式碘化铜簇[Cu 4 I 4 L 4]（L = 配体）是一种众所周知的光致发光化合物，这里通过探索带有不同发射体的配体来研究扩大其光物理特性面板的可能性。因此，本工作描述了由发射性氰基联苯 (CBP) 基团功能化的不同膦配体配位的五种碘化铜簇的比较研究。配体的发射特性对簇的光物理特性有很大影响。与经典 [Cu 4 I 4 L 4] 碘化铜簇，发射带的起源大大改变。电子受体特征的 CBP 部分显着降低了空轨道的能量，从而影响了全局能量布局。这些集群基于两个不同的发射中心呈现双重发射，这两个发射中心通过能量转移相互作用。这项研究表明，原始配体的设计是丰富吸引人的卤化铜配合物家族的光物理性质的有效方法。
更新日期：2022-02-24
中文翻译：
发射性氰基联苯配体配位的碘化铜簇
卤化铜 (I) 是目前深入研究的主题，因为它们具有丰富的光物理特性以及实际应用的经济和环保优势。分子式碘化铜簇[Cu 4 I 4 L 4]（L = 配体）是一种众所周知的光致发光化合物，这里通过探索带有不同发射体的配体来研究扩大其光物理特性面板的可能性。因此，本工作描述了由发射性氰基联苯 (CBP) 基团功能化的不同膦配体配位的五种碘化铜簇的比较研究。配体的发射特性对簇的光物理特性有很大影响。与经典 [Cu 4 I 4 L 4] 碘化铜簇，发射带的起源大大改变。电子受体特征的 CBP 部分显着降低了空轨道的能量，从而影响了全局能量布局。这些集群基于两个不同的发射中心呈现双重发射，这两个发射中心通过能量转移相互作用。这项研究表明，原始配体的设计是丰富吸引人的卤化铜配合物家族的光物理性质的有效方法。
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