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. Author manuscript; available in PMC: 2023 May 11.
Published in final edited form as: J Am Chem Soc. 2022 Apr 27;144(18):7988–7994. doi: 10.1021/jacs.2c02976

Table 1.

Optimization of the Reaction Conditionsa

graphic file with name nihms-1862498-t0002.jpg
entry sensitizer ET (kcal/mol) X hυmax (LED) yield (%)
1 2-iPrTX (5) 63.5 10 395 46
2 2-OMeTX (9) 57.8 10 395 28
3 2,2′-OMeTX (10) 55.2 10 450 76
4 Ir[(dFCF3ppy)2dtbbpy]PF6 (11) 60.1 1 450 58
5 Ir[(dFppy)2dtbbpy]PF6 (12) 57.1 1 450 60
6b Ir[(Fppy)2dtbbpy]PF6 (13) 53.3 1 450 18
7 Ir[(ppy)2dtbbpy]PF6 (14) 51.0 1 450 70
a

Reactions were run on a 0.1 mmol scale. Yields were determined by 1H NMR analysis of the unpurified reaction mixtures with CH2Br2 as an internal standard.

b

The limited solubility of the sensitizer resulted in a poor yield.