The conjugation stabilization of 1,3-butadiyne is zero

被引:61
作者
Rogers, DW [1 ]
Matsunaga, N
Zavitsas, AA
McLafferty, FJ
Liebman, JF
机构
[1] Long Isl Univ, Dept Chem & Biochem, Brooklyn, NY 11201 USA
[2] Univ Maryland Baltimore Cty, Dept Chem & Biochem, Baltimore, MD 21250 USA
关键词
D O I
10.1021/ol030019h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
graphic In contrast to 1,3-butadiene, the textbook example of "conjugation stabilization", G3(MP2) calculations yielding the enthalpy of hydrogenation Delta(hyd)H(298) of 1,3-butadiyne indicate that it is not stabilized by the conjugated configuration of its triple bonds. Differences between ethylenic and acetylenic T bonds are examined in the light of CAS-MCSCF calculations on 1,3-butadiene and 1,3-butadiyne.
引用
收藏
页码:2373 / 2375
页数:3
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