Rigid Polynuclear Cyclometallated Pt(II) / Ir(III) Complexes: Towards Supramolecular Triplet Emitters

环金属化Pt（II）和Ir（III）配合物是非常强大的发光团。目前学术界和工业界的兴趣是由其卓越的光物理性质和各种应用的适用性驱动的。这种配合物的成功主要是由于在发光团中存在环金属化的金属中心，这促进了三重态的有效磷光。我们建议在一个刚性集成光团中制造具有两个或多个金属中心的新发光分子。我们认为，在这些大的共轭体系中，重原子效应将被增强，导致红光的有效磷光，并可能延伸到光谱的红外区。这类分子作为新型金属超分子结构组装的基石，在超分子化学中引起了人们的兴趣，与传统的基于多吡啶的组装相比，它可以提供更可控的几何结构和优越的发光性能。此外，我们的分子可以通过分子间pi-pi和pt - pt中心相互作用产生许多有趣的效应，这表明刺激反应材料的发展。

Cyclometallated Pt(II) and Ir(III) complexes are exceptionally powerful luminophores. Current interest from academia and industry is driven by their remarkable photophysical properties and suitability for a variety of applications. The success of such complexes is mainly due to the presence of cyclometallated metal centre in a luminophore, which promotes efficient phosphorescence from the triplet state.We propose to make new luminescent molecules with two or more metal centres within one rigid integrated lumonophore. We think that in these large conjugated systems the heavy atom effect will be enhanced leading to efficient phosphorescence in the red and possibly extending far into the infrared region of the spectrum. The molecules of this kind are of interest in supramolecular chemistry as building blocks in assembly of new metallosupramolecular architectures, which in comparison with classical polypyridine-based assemblies, can provide more controlled geometry and superior luminescent properties. In addition, our molecules can give rise to many interesting effects arising from intermolecular pi-pi and Pt-Pt-centred interactions suggesting development of stimuli responsive materials.