引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1513次   下载 1118 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Laser Induced Fluorescence Spectroscopy of IrN
H. F. Pang,A. S. C. Cheung *
Author NameAffiliationE-mail
H. F. Pang Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China  
A. S. C. Cheung * Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China hrsccsc@hku.hk 
Abstract:
High resolution laser induced fluorescence spectra of IrN in the spectral region between 394 and 520 nm were recorded using laser vaporization/reaction free jet expansion and laser induced fluorescence spectroscopy. Seven new vibronic transition bands were observed and analyzed. Two Ω=1 and five Ω=0 new states were identified. Least squares fit of rotationally resolved transition lines yielded accurate molecular constants for the upper states. Spectra of isotopic molecules were observed, which provided confirmation for the vibrational assignment. Comparison of the observed electronic states of IrB, IrC, and IrN provides a good understanding of the chemical bonding of this group of molecules.
Key words:  Electronic transition, Rotational analysis, Iridium mononitride, Laser induced fluorescence spectroscopy
FundProject:
Laser Induced Fluorescence Spectroscopy of IrN
H. F. Pang,A. S. C. Cheung *
摘要:
利用激光蒸发/反应的自由射流膨胀和激光诱导荧光光谱方法,研究了IrN在394-520nm光谱区域的高分辨率激光诱导荧光光谱. 观察并分析了7个新的振动谱带. 确定了其中有两条是Ω=1和五条是Ω=0的新谱带. 用最小二乘法拟合了转动跃迁谱线,由此确定了高能级的精确光谱常数. 同位素分子光谱为振动光谱的标识提供了进一步的验证, 比较测得的IrB、IrC和IrN的电子态光谱推进了对这一系列分子的化学成键性质的认识.
关键词:  电子跃迁,转动分析,IrN,激光诱导荧光光谱
DOI:10.1088/1674-0068/22/02/157-161
分类号: