The photothermal properties in the NIR region of a large series of 19 metal-bis(dithiolene) complexes and of a perylene derivative have been studied in detail. Photophysical and thermal measurements were repeated several times to obtain good uncertainties on molar extinction coefficients, temperature increases and photothermal efficiencies. This large series of metal-bis(dithiolene) complexes enabled us to assess the impact of the nature of the metal center, the nature of the ligand and the number and length of the carbon chains on absorption properties and photothermal efficiencies. Thanks to these reliable data, the recently introduced photothermal index I, which combines molar absorptivity and photothermal efficiency η, has also been effectively used to rank all these molecular photothermal agents according to their photothermal activity. This work confirms that the photothermal index I can be used effectively to rank photothermal agents according to their ability to convert light into heat.

中文翻译：

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研究大量金属-双（二硫烯）配合物的光热性质：分子结构的影响和使用光热指数 IPT 的排序

详细研究了一系列 19 种金属-双（二硫醇）配合物和苝衍生物在近红外区域的光热性质。光物理和热测量重复多次，以获得摩尔消光系数、温度升高和光热效率的良好不确定性。这一大系列的金属-双（二硫醇烯）配合物使我们能够评估金属中心的性质、配体的性质以及碳链的数量和长度对吸收性能和光热效率的影响。得益于这些可靠的数据，最近推​​出的结合了摩尔吸收率和光热效率η的光热指数I也已被有效地用于根据所有这些分子光热剂的光热活性对其进行排名。这项工作证实，光热指数 I 可以有效地根据光热剂将光转化为热的能力对光热剂进行排名。