The Infrared Intensities of Stretching Fundamentals in Gaseous and Crystalline Cyanoacetylene

スポンサーリンク

概要

• 論文の詳細を見る

• The absolute intensities of the stretching fundamentals of cyanoacetylene and cyanoacetylene-d were measured in gaseous and crystalline (77 K) states. As had been expected from the previous result for hydrogen cyanide, a striking intensity increase upon crystallization was observed not only for νCH(CD) also for the other fundamentals. The observed intensities were reduced to dipole-moment derivative with respect to the internal coordinates, ∂μ⁄∂<I>r</I>. Then, by taking advantage of the strictly linear geometry of hydrogen-bonded chains in the crystals, it was demonstrated that the derivative with respect to the hydrogen-bonded distance, [∂μ⁄∂<I>r</I><SUB>N···H</SUB>], was primarily responsible for the remarkable change in ∂μ⁄∂<I>r</I>; this was in accordance with the previous conclusion for hydrogen cyanide. A discrepancy from this view which appeared for ∂μ⁄∂<I>r</I><SUB>3</SUB> was interpreted as being mainly caused by the vibronic behavior of π-electrons.

• 公益社団法人 日本化学会の論文

著者

• Uyemura Masakatsu

  Research Laboratory of Resources Utilization, Tokyo Institute of Technology

関連論文

• The Infrared Intensities of Stretching Fundamentals in Gaseous and Crystalline Cyanoacetylene

スポンサーリンク