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}} The cyano radical is a radical with molecular formula ·CN. The cyano radical was one of the first detected molecules in the interstellar medium and has helped the field of astrochemistry a great deal. The first discovery was performed with a coude spectrograph which was made famous and credible due to this detection. ·CN has been observed in both diffuse clouds and dense clouds. Usually, CN is detected in regions with hydrogen cyanide, hydrogen isocyanide, and HCHN+ since it is also used In the creation and destruction of these molecules. ==Physical Properties== The cyano radical is best depicted as a combination of two resonance structures: the structure with the unpaired electron on the carbon is the minor contributor, while the structure with the unpaired electron on the nitrogen (the isocyano radical) is the major contributor. The charge separation in the isocyano radical is similar to that of carbon monoxide. ·CN has a dipole moment of 1.45 Debye and a 2Σ ground electronic state. The selection rules are: : : Where ''N'' is the angular momentum, ''S'' is the electric spin, and ''I'' = 1 is the nuclear spin of 14N. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cyano radical」の詳細全文を読む スポンサード リンク
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