Synthesis, spectroscopic characterizations, photophysical properties and DFT studies of a novel iridium(III) complex containing 2-(2-butoxy-4-fluorophenyl)pyridine ligand
作者:Norhana Zulkifli、Noorshida Mohd Ali、Nurul Husna As Saedah Bain、Yusnita Juahir、Suzaliza Mustafar、Norhayati Hashim、Mohd Sukeri Mohd Yusof、Ayman K. El-Sawaf、El Hassane Anouar
DOI:10.1016/j.ica.2023.121757
日期:2023.12
iridium(III) complex, Ir(bFppy)2(pyim) (bFppy = 2-(2-butoxy-4-fluorophenyl)pyridine and pyim = 2-(1H-Imidazol-2-yl)pyridine) was excellently prepared between 2-(1H-Imidazol-2-yl)pyridine and chloro-bridged iridium(III) dimer via reflux reaction. Butoxy functional group and fluorine atom were added to the phenyl ring of 2-phenylpyridine at positions 2 and 4 respectively, as cyclometalating ligand. The
铱(III)配合物Ir(bFppy) 2 (pyim)(bFppy = 2-(2-丁氧基-4-氟苯基)吡啶和pyim = 2-(1 H-咪唑-2-基)吡啶)的制备非常出色2-(1H-咪唑-2-基)吡啶和氯桥铱(III)二聚体之间通过回流反应。2-苯基吡啶的苯环上分别在2位和4位添加丁氧基官能团和氟原子作为环金属化配体。Ir(bFppy) 2 (pyim) 配合物通过光谱方法进行表征:FTIR、NMR、LCMS 和 UV-Vis 吸收。由于 ν(C)在 1256 cm -1和 1129 cm -1处存在两个尖峰O)通过IR分析揭示。由于苯基和吡啶的CC和CN芳环伸缩振动,谱带出现在1594-1567 cm -1范围内。1 H NMR 谱显示δ 5.50–8.60 ppm范围内的信号,对应于苯基吡啶和吡啶咪唑质子。相反,质子信号在δ 0.80–4.50 ppm范围内,可归因于丁基取代基。由于自旋禁止的3