Syntheses, structures and theoretical calculations of stable triarylarsine radical cations
作者:Tao Li、Gengwen Tan、Cheng Cheng、Yue Zhao、Li Zhang、Xinping Wang
DOI:10.1039/c7cc09544a
日期:——
The first stable triarylarsine radical cation salts 1˙+[BArF4]− and 2˙+[BArF4]− were afforded by one-electron oxidation of triarylarsines Trip3As (1, Trip = 2,4,6-iPr3C6H2) and Dipp3As (2, Dipp = 2,6-iPr2C6H3) with AgSbF6 and NaBArF4 (ArF = 3,5-(CF3)2C6H3), respectively. Their molecular and electronic structures were investigated by single-crystal X-ray diffraction, electron paramagnetic resonance
第一个稳定的自由基triarylarsine阳离子盐1 ˙ + [巴˚F 4 ] -和2 ˙ + [巴˚F 4 ] -由triarylarsines的单电子氧化物,得到行程3如(1,跳闸= 2,4,6-的iPr 3 C 6 H 2)和Dipp 3 As(2,Dipp = 2,6-iPr 2 C 6 H 3)和AgSbF 6和NaBAr F 4(Ar F = 3,5-(CF 3)2 C 6 H 3)。通过单晶X射线衍射,电子顺磁共振(EPR)和紫外可见吸收光谱,结合密度泛函理论(DFT)计算,研究了它们的分子和电子结构。在EPR和计算结果表明,自旋密度1 ˙ +和2 ˙ +主要分布在作为核。