碳化铝分子的傅里叶变换发射光谱

C. Brazier, P. Carrick
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引用次数: 0

摘要

首次在气相中观察到碳化铝分子。这种简单的双原子分子以前仅从Knight等人[1]的基质分离ESR研究和Bauschlicher等人[2]的理论计算中得知,在蓝色[2]中预测了一个相当强的B4Σ—X4Σ电子跃迁,类似于最近观察到的BC分子[3]。利用基特峰国家天文台的1m傅里叶变换光谱仪对空心阴极源发射的AlC系统进行了搜索。最初的搜索是部分成功的,因为观察到两个弱带具有正确的形式,不能归因于任何已知的杂质光谱。用更灵敏的探测器和更窄的探测带宽重复实验,得到了这里描述的光谱。
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Fourier Transform Emission Spectroscopy of the Aluminum Carbide Molecule
The aluminum carbide molecule has been observed for the first time in the gas phase. This simple diatomic molecule was previously known only from matrix isolation ESR studies by Knight et al. [1] and the theoretical calculations of Bauschlicher et al. [2], A fairly strong B4Σ--X4Σ- electronic transition was predicted in the blue [2] analogous to the recendy observed BC molecule [3]. A search was made for this system of AlC in emission from a hollow cathode source using the 1m Fourier transform spectrometer at Kitt Peak National Observatory. The initial search was partially successful in that two weak bands were observed that had the correct form and could not be attributed to any known impurity spectrum. The experiment was repeated using more sensitive detectors and a narrower detection bandwidth, resulting in the spectra described here.
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