Table 4. Collected Photophysical Properties Including the Emission Quantum Yield (φ), Excited State Lifetime (τ), Radiative Decay Rate (k_r), and Non-Radiative Decay Rate (k_nr) of All Complexes Discussed in This Report.

Complex	ϕ (%)	τ (ns)	kr(107 s–1)	knr(108 s–1)
[Fe(phtmeimb)2]PF6 23	2.1	2.0	1.1	5.0
[Fe(brphtmeimb)2]PF6	1.8	1.7	1.1	5.8
[Fe(meophtmeimb)2]PF6	1.7	1.7	1.0	5.8
[Fe(coohphtmeimb)2]PF6	1.9	1.6	1.2	6.1