Microwave synthesis of tris-ortho-metalated Ir(III) complexes was performed and resulted complexes were applied to the electrophosphorescent devices. For synthesis of Ir(ppy) 3 , the product was obtained by 30 min. microwave irradiation. That is microwave irradiation reduced the reaction time to 1/20 of that under conventional heating. Furthermore, we succeeded the rapid microwave synthesis of tris(2-phenyl-1-quinoline)iridium(III), Ir(phq) 3 , which is hard to synthesis by conventional method. An electrophosphorescent device with Ir(phq) 3 as a dopant in emitting layer was developed. It demonstrated a highefficient orange emission with maximum luminous efficiency of 33.4 cd/A and a power efficiency of 11.7 lm/W at 800 cd/m 2 . The color of emission corresponds to CIE coordinates x ¼ 0:56, y ¼ 0:43. The device showed a projected operational lifetime, namely T 1=2 , of 6500 h at an initial brightness of 1500 cd/m 2 under constant dc drive.
SMan and H 2 TFPC-SGlc were tested in HeLa cells. These compounds showed no cytotoxicity in the dark. Upon photoirradiation, these compounds killed almost all of the cells in the region of a 1 to 2¯M concentration. The photocytotoxicity of the compounds completely disappeared in the concentration region of 0 to 0.1¯M. The photocytotoxicity of H 2 TFPCSMan is significantly higher than that of H 2 TFPC-SGlc in the concentration range from 0.2 to less than 1¯M. The cellular uptake of H 2 TFPC-SMan in HeLa cells was estimated in terms of fluorescence intensity from each HeLa cell. The cellular uptake of H 2 TFPC-SMan is significantly higher than that of H 2 TFPC-SGlc at a concentration of 0.5¯M. These results are consistent with the experimental observation that the photocytotoxicity of H 2 TFPC-SMan is significantly higher than that of H 2 TFPC-SGlc in a concentration range from 0.2 to less than 1¯M.
Under irradiance of 1kW-MW, nickel oxide (Ni(II)O, 25 gr)) can heat up to 1,300°C in 6 min, while ferric oxide (Fe(III)2O3, 25gr) up to 88°C in 30 min. Since Ni(II) and Fe(III) have unpaired electron (spin) of respective 2 and 5, the big difference in the MW heating speed must be explained by thermo-upconversion mechanism as recently verified for quick MW heating of water clusters.1) MW heating power by magnetic loss factor of magnetic metal oxides with unpaired electron, i.e., spin dcould not rationalize such heating-speed and temperature difference. Density functional theory-based molecular modeling(DFT/MM, B3LYP, 6-31G*) of NiO-tetramer of [(NiO)2]2 is successfully carried out with negative heat of formation, giving effective absorption in both FIR and IR regions, which verifies that Ni(II)O should be heated up through thermo-upconversion to the IR region via radio-, MW- and FIR-absorption, i.e., FIR/IR absorption and thermal IR dissipation
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