Hyperfine-Resolved Rotational Spectroscopy of Phenyl Radical
Hyperfine-Resolved Rotational Spectroscopy of Phenyl Radical
复制标题
苯基自由基的超精细分辨旋转光谱
DOI：
10.1021/acs.jpclett.3c01243
复制
发表时间：
2023
期刊：
影响因子：
--
通讯作者：
McCarthy, Michael C.
中科院分区：
文献类型：
--
作者：
Changala, P. Bryan;McCarthy, Michael C.
我们对气相苯基自由基c-C6H5在9 ~ 35 GHz之间的超精细分辨旋转光谱进行了分析。本研究准确地测定了5个质子的各向同性和各向异性超精细参数以及电子自旋-自旋精细结构参数，从而更详细地了解了该原型σ-自由基中未配对电子的分布和相互作用。讨论了依赖于精确的厘米波目录的苯的实验室和天文研究的意义，以及探测和分配其他大的、弱极性烃链和环自由基的超精细分辨旋转光谱的前景。
We present an analysis of the hyperfine-resolved rotational spectrum of gas-phase phenyl radical,c-C6H5, between 9 and 35 GHz. The isotropic and anisotropic hyperfine parameters of all five protons and the electronic spin-rotation fine structure parameters are accurately determined from this study, which allow detailed insight into the distribution and interactions of the unpaired electron in this prototypical σ-radical. The implications for laboratory and astronomical investigations of phenyl that are reliant on a precise centimeter-wave catalog are discussed, as are the prospects for detecting and assigning the hyperfine-resolved rotational spectra of other large, weakly polar hydrocarbon chain and ring radicals.