Table 2.

Photophysical Properties of MNc(OBu)₈ (M = Zn(II), Ni(II), Pd(II), Pt(II), Co(II), Rh(III), Ir(III)) in benzene.^a

Metal	Z	λQ/nm	10 εQ/M−1cm−1	λf/nm	Stokes shift/cm−1	qM	λph/nm
Zn	30	847	1.80	857	138	0.07	–
Ni	28	844	2.25	–	–	–	–
Pd	46	827	2.67	873	652	0.0061	1343
Pt	78	811	2.64	879	954	0.0017	1265
Co	27	832	1.68	–	–	–	1092b
Rh	45	819	1.42	863	623	0.0023	1298
Ir	77	802	2.84	882	1131	0.0008	1235

^apyridine (1%, by volume) was added to the solution of Zn and Rh complexes;

^bobserved as a weak emission band upon 830 nm excitation, presumably from the ²T₁(π,π*) state [4b].