DESIGN OF SUBSTITUTED SEMIBULLVALENES SUITABLE FOR CONTROL OF THE COPE REARRANGEMENT BY 2 PS IR LASER-PULSES

被引：28

作者：

DOHLE, M ^{[1
]}

MANZ, J ^{[1
]}

PARAMONOV, GK ^{[1
]}

QUAST, H ^{[1
]}

机构：

[1] UNIV WURZBURG,INST ORGAN CHEM,D-97074 WURZBURG,GERMANY

来源：

CHEMICAL PHYSICS | 1995年 / 197卷 / 01期

关键词：

D O I：

10.1016/0301-0104(95)00141-A

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A systematic experimental search for substituted semibullvalenes yields systems which have nearly thermoneutral reactants and products (Delta H-0 approximate to 0.5-1 kJ mol(-1)) separated by moderately low barriers GRAPHICS e.g. 2,6-dicyanoethylmethylsemibullvalene DEM-SBV (= 7c reversible arrow 7c'). Theoretical model simulations suggest that their Cope rearrangement may be controlled by two infrared picosecond (IR ps) laser pulses: The first pump pulse excites the reactants to the transition state, represented by a delocalized wave packet with energy above the potential barrier. The second dump pulse stabilizes the products.

引用

页码：91 / 97

页数：7

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[1] CYCLOADDITION OF N-PHENYTRIAZOLINDIONE TO 1,5-DIALKYL SUBSTITUTED SEMIBULLVALENES [J].