“…To obtain light sources for OMS, two sets of molecular emitters were synthesized. One of them consisted of eight cyclometalated Ir(III) compounds: firstly synthesized [Ir(dfppy) 2 (bpbpy)]PF 6 (1), [Ir(ppy) 2 (bpbpy)]PF 6 (2), [Ir(pybt) 2 (bpbpy)]PF 6 (3), and synthesized according to the standard procedure: (4) [8], (5) [9], (6) [10,11], (7) [12], and (8) [13]. The second set consists of six Cu(I)-based complexes: [Cu(MePPy 3 )I] 2 [Cu 2 I 4 ] (9) [14], [Cu 4 I 4 (py) 4 ] (10) [15], [Cu(Tpdp)I] (11) [16], [CuCl(PPh 3 ) 2 (py)] (12) [17], [Cu(PPh 3 ) 3 (4-Mepy)]Br (13), and [CuI(PPh 3 ) 2 (4-Mepy)] ( 14) [18].…”