Janeková Hana, Friedman Hannah C, Russo Marina, Zyberaj Mergime, Ahmed Tasnim, Hua Ash Sueh, Sica Anthony V, Caram Justin R, Štacko Peter
Department of Chemistry, University of Zurich, Wintherthurerstrasse 190, Zurich 8057, Switzerland.
Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive, Los Angeles, CA 90095-1569, USA.
Chem Commun (Camb). 2024 Jan 23;60(8):1000-1003. doi: 10.1039/d3cc05153f.
The design of bright short-wave infrared fluorophores remains a grand challenge. Here we investigate the impact of deuteration on the properties in a series of heptamethine dyes, the absorption of which spans near-infrared and SWIR regions. We demonstrate that it is a generally applicable strategy that leads to enhanced quantum yields of fluorescence, longer-lived singlet excited states and suppressed rates of non-radiative deactivation processes.
明亮短波光红外荧光团的设计仍然是一个巨大的挑战。在此，我们研究了氘代对一系列七甲川染料性质的影响，这些染料的吸收跨越近红外和短波红外区域。我们证明这是一种普遍适用的策略，可提高荧光量子产率、延长单重激发态寿命并抑制非辐射失活过程的速率。
