硅化合物的电磁辐射

Silicon ¹, which is one of the most common elements in Earth's crust, is also sprinkled abundantly throughout interstellar space. The only way to identify silicon-containing molecules ² in the far corners of the cosmos ³ -- and to understand the chemistry that created them -- is to observe through telescopes the electromagnetic radiation the molecules emit. Scientists from the University of Tokyo, in Japan, have now determined ⁴ the unique electromagnetic emission ⁵ spectrums of two new, highly-reactive silicon compounds. The research, which is published in The Journal of Chemical Physics from AIP Publishing, will help astronomers ⁶ look for the molecules in the interstellar medium., ,"Like human fingerprints ⁷ and DNA ⁸ sequences are the markers of human identity, we can identify molecules from the frequencies of the electromagnetic waves emitted by them," said Yasuki Endo, a researcher in the Department of Basic Science at the University of Tokyo., ,Using spectroscopic techniques, scientists have already detected silicon-containing molecules in the gaseous ⁹ clouds that envelop ¹⁰ some stars and in the sparsely ¹¹ populated space between stars. In space, silicon is often found in dust grains containing stable compounds called silicates ¹². However, highly reactive molecules, such as SiCN, have also been detected in the gas phase in the interstellar medium.