The near-infrared two-photon absorption (TPA) spectra of a series of cyclometalated iridium complexes have been measured. These complexes exhibit moderately large TPA cross-sections of approximately 20 GM at the biological relevant wavelength of 800 nm. A new complex has been designed and synthesised, and found to have an increased cross-section of 44 GM at 800 nm. Full photophysical characterisation of this complex is presented.
近红外双光子吸收(
TPA)光谱已测定了一系列环
金属化
铱配合物的数据。这些配合物在800纳米
生物相关波长下展现出中等大小的双光子吸收截面,约20 GM。设计并合成了一种新配合物,该配合物在800纳米处的截面提高至44 GM。本文展示了该配合物的完整光物理表征。