Cyclometalated iridium(III) complexes are frequently employed in organic light emitting diodes, and they are popular photocatalysts for solar energy conversion and synthetic organic chemistry. They luminesce from redox-active excited states that can have high triplet energies and long lifetimes, making them well suited for energy transfer and photoredox catalysis. Homoleptic tris(cyclometalated) iridium(III) complexes are typically very hydrophobic and do not dissolve well in polar solvents, somewhat limiting their application scope. We developed a family of water-soluble sulfonate-decorated variants with tailored redox potentials and excited-state energies to address several key challenges in aqueous photochemistry.

中文翻译：

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用于水相电子和能量转移光化学的水溶性三（环金属化）铱 (III) 配合物

环金属化铱 (III) 配合物经常用于有机发光二极管，它们是太阳能转换和合成有机化学的常用光催化剂。它们从具有高三重态能量和长寿命的氧化还原活性激发态发光，使其非常适合能量转移和光氧化还原催化。同配三（环金属化）铱（III）配合物通常具有很强的疏水性，在极性溶剂中不能很好地溶解，这在一定程度上限制了它们的应用范围。我们开发了一系列水溶性磺酸盐修饰的变体，具有定制的氧化还原电位和激发态能量，以解决水性光化学中的几个关键挑战。