Table 2. Steady State Photophysical Properties Including the Absorption Maximum (Abs max), Its Full Width at Half-Maximum (FWHM), the Peak Extinction Coefficient (ε), the Emission Maximum (Em max), Its FWHM, the Emission Quantum Yield (ϕ), and Finally the 0–0 Energy (E₀₀) of All Complexes Discussed in This Report.

Substituent	Abs maxa(nm/eV)	Abs fwhm (eV)	Ext coeffε (M–1 cm–1)	Em maxa(nm/eV)	Em fwhm (eV)	ϕ (%)	Ε00 (eV)
[Fe(phtmeimb)2]PF6b	502/2.47	0.58	3000	655/1.89	0.43	2.1	2.14
[Fe(brphtmeimb)2]PF6	508/2.44	0.60	3500	658/1.88	0.43	1.8	2.13
[Fe(meophtmeimb)2]PF6	503/2.74	0.59	3600	658/1.88	0.43	1.7	2.13
[Fe(coohphtmeimb)2]PF6	505/2.46	0.58	3100	661/1.88	0.43	1.9	2.14

^aDefined as where the derivative of the spectrum with respect to wavelength is zero.

^bData from ref (23).