作者:Ralph Marquardt、Andreas Balster、Wolfram Sander、Elfi Kraka、Dieter Cremer、J. George Radziszewski
DOI:10.1002/(sici)1521-3773(19980420)37:7<955::aid-anie955>3.0.co;2-t
日期:1998.4.20
with IR absorption bands at 725 and 980 cm-1 , which disappeared when the matrix was annealed. These bands correspond to the most intense of the calculated bands (B3LYP) for 1,4-didehydrobenzene (p-benzyne) (1). That decomposition of the peroxides in fact leads to 1 is confirmed by vapor-phase pyrolysis experiments in which (Z)-2 was obtained in high yield.
低温下的稀有气体基质用于研究二乙酰对苯二甲酰二过氧化物,二丙酰对苯二甲酰二过氧化物以及1,4-二碘苯的光化学行为。所有这三种光反应均形成少量的化合物,该化合物在725和980 cm -1处具有IR吸收带,当基质退火时,该吸收带消失。这些条带对应于1,4-二氢苯(p-benzyne)的最强计算条带(B3LYP)(1)。通过气相热解实验证实过氧化物的分解实际上导致了1,其中以高收率获得了(Z)-2。