作者:Maurice J. van Eis、Geerlig W. Wijsman、Willem H. de Wolf、Friedrich Bickelhaupt、Donald W. Rogers、Huub Kooijman、Anthony L. Spek
DOI:10.1002/(sici)1521-3765(20000502)6:9<1537::aid-chem1537>3.3.co;2-5
日期:2000.5.2
hydrogenated rapidly (within 10 s) to furnish the bridgehead olefins 13b and 12c. The accompanying hydrogenation enthalpies are -220 and -141 kJmol(-1), respectively. Strain energies (SE) and olefinic strains (OS) of a number of bridgehead olefins have been evaluated by DFT calculations; it was concluded that 13b belongs to the class of hyperstable olefins which correlates nicely with its reluctance to undergo
描述了[5]-和[6]间环phane(1b和1c)的氢化过程及其热化学。两种化合物都被快速氢化(在10 s内)以提供桥头烯烃13b和12c。伴随的氢化焓分别为-220和-141 kJmol(-1)。已经通过DFT计算评估了许多桥头烯烃的应变能(SE)和烯烃应变(OS)。结论是13b属于超稳定烯烃类,与其不愿进行氢化反应密切相关。通过结合实验氢化焓和DFT计算,得出1b和1c的SE为187和121 kJmol(-1)。