Conformation and vibrational spectra of 1,5-hexadiyne (bipropargyl) and 1,5-hexadiyne-1,6-d2
作者:G.O. Braathen、C.J. Nielsen、P. Klaeboe、H. Hopf
DOI:10.1016/0022-2860(81)80034-8
日期:1981.7
anti, in the crystalline forms. A phase transition for 1,5-hexadiyne was observed at ca. 240 K. Both the high and low temperature crystals had molecules in the anti conformer. Interpretation of the spectra in terms of conformational equilibria was facilitated by a thorough vapour phase band contour analysis. With a few exceptions, all the vibrational fundamentals for both conformers were assigned and found
摘要 1,5-己二炔 (bipropargyl) 和 1,5-hexadiyne-1,6-d 2 的红外光谱在低温和高压下以蒸气、液体、各种溶剂中的溶质和结晶固体的形式被记录下来。 . 获得了液体的拉曼光谱,包括半定量偏振测量,以及低温晶体。数据被解释为两种构象异构体,anti 和 gauche,处于蒸气和液体状态,一种是 anti,处于结晶形式。观察到 1,5-己二炔的相变约 240 K。高温和低温晶体都有反构象异构体分子。彻底的气相带轮廓分析有助于根据构象平衡对光谱进行解释。除了少数例外,