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Cavity Ring Down Laser Absorption Spectroscopy of NiI
Tong-mei Ma,Ling Li,Joanne Wing Har Leung,Allan Shi Chung Cheung*
Author NameAffiliationE-mail
Tong-mei Ma Department of Chemistry, The University of Hong Kong, Hong Kong  
Ling Li Department of Chemistry, The University of Hong Kong, Hong Kong  
Joanne Wing Har Leung Department of Chemistry, The University of Hong Kong, Hong Kong  
Allan Shi Chung Cheung* Department of Chemistry, The University of Hong Kong, Hong Kong hrsccsc@hku.hk 
Abstract:
The absorption spectrum of NiI between 445 and 510 nm has been investigated using the technique of laser vaporization/reaction with free jet expansion and cavity ring down laser absorption spectroscopy. Two new transitions namely, [21.3]2?5/2~X2?5/2 and [21.9]2Π3/2~X2?5/2 systems were identified and studied. Spectra of both 58NiI and 60NiI isotopic molecules were observed. Equilibrium molecular constants for both electronic states are reported and the equilibrium bond length for the [21.3]2?5/2 state and the [21.9]2Π3/2 state was respectively determined to be 2.431 and 2.481 ?.
Key words:  Nickel monoiodide, Cavity ring down spectrum, electronic transition
FundProject:
Cavity Ring Down Laser Absorption Spectroscopy of NiI
马彤梅,李凌,梁詠霞,张仕中*
摘要:
用激光蒸发/反应、超声射流和光腔衰荡吸收光谱方法研究NiI在445~510 nm的吸收光谱. 发现两个新的跃迁体系[21.3]2?5/2~X2?5/2和[21.9]2Π3/2~X2?5/2,并且观察到了同位素分子58NiI和60NiI光谱. 同时计算得到了电子态[21.3]2
关键词:  碘化镍,光腔衰荡,电子跃迁
DOI:10.1088/1674-0068/22/06/611-614
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