10.1002/asia.201900521
Chemistry - An Asian Journal
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1312, 1283, 1266, 1241, 752, 696; MS (ESI+, direct infusion) m/z =
1201.6 (100% [(bz-TPA)2Ir(O^N)1+H]+). E.A. calculated (%) for
C61H45BrIrN5OS2: C, 60.99; H, 3.77; N, 2.33; found: C, 60.78; H, 3.57;
N, 2.62.
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[(bz-TPA)2Ir(O^N)2], 4. The reaction was conducted using H(O^N)2
(83 mg, 2.34 ∙ 10-4 mol) and [(bz-TPA)2Ir(µ-Cl)]2 (150 mg, 7.63 ∙ 10-5
mol). The product was purified over silica gel using petroleum
ether\ethyl acetate (v\v:9\1) as eluent. Dark red solid; yield 26 %; m.p.
121 °C; 1H-NMR (CDCl3, 300 MHz, TMS) δ = 7.94 (d, JH-H= 7.77 Hz,
1H), 7.84 (d, JH-H= 7.8 Hz, 1H), 7.70 – 7.67 (m, 2H), 7.65 – 7.33 (m,
6H), 7.09 – 7.04 (m, 5H), 7.01 – 6.96 (m, 4H), 6.92 – 6.84 (m, 12H),
6.73 (dd, J1=8.25 Hz, J2= 2.31 Hz, 1H), 6.50 – 6.42 (m, 3H), 5.65 (d,
1H), 5.64 (s, 1H), 5.48 (d, JH-H= 2.07 Hz, 1H), 5.22 (dd, 1H); FT-IR
(KBr) ν (cm-1) = 1572, 1485, 1430, 1191, 1144, 753, 696; MS (ESI+,
direct infusion) m/z = 1307.6 (100% [(bz-TPA)2Ir(O^N)2+H]+). E.A.
calculated (%) for C61H39BrF6IrN5OS2: C, 56.00; H, 3.00; N, 5.35;
found: C, 55.91; H, 2.89; N, 5.46.
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Acknowledgements
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Ghedini, E. Brunelli, S. Sesti, N. Godbert, Chem. Asian J. 2017, 12,
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I.A. is grateful to Dr Pierluigi Plastina (Department of
Pharmacy, Health and Nutrition, University of Calabria) for the
MS analyses. This research was supported by the Regione
Calabria (POR CALABRIA FESR 2014/2020 - Azione 1.2.2)
through MERAVIGLIE Project and by the MIUR through
ELIOTROPO Project (PON03PE_00092).
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Keywords: Iridium • luminescence • electropolymerization •
TPA • electron trapping
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