The measured photophysical and electrochemical properties of Ir(pmi)3 were cross-compared with those of fac-Ir(ppy)3 (Table ). The emission spectra of both mer-and fac-Ir(pmi)3 (lPL = 405 and 407 nm, respectively, in MeCN) are significantly blue-shifted compared to that of fac-Ir(ppy)3 (lPL = 515 nm in MeCN). The photoluminescence spectra at 77 K in BuCN (Figure ) showed ET of 3.30 and 3.28 eV for fac-and mer-Ir(pmi)3, respectively, the highest reported of any Iridium PC to date. The