Photoisomerisation d'arylhydrazones-2 de dicetones-1,2 substituees en 2.
作者:R. Pichon、J. Le Saint、P. Courtot
DOI:10.1016/s0040-4020(01)92091-5
日期:1981.1
A syn-anti photoisomerisation of the carbon-nitrogen double bond is responsible for the photochromic properties observed with 2-arylhydrazones of 2-substituted 1,2-diketones. We have determined the multiplicity of the excited state involved in the process and we have shown that, in the thermal back-reaction, syn-anti isomerisation takes place through rotation around the CN bond rather than through
碳-氮双键的顺-反光异构化是由2-取代的1,2-二酮的2-芳基hydr酮所观察到的光致变色性质的原因。我们已经确定了该过程涉及的激发态的多样性,并且我们已经表明,在热逆反应中,顺-反异构化是通过围绕CN键旋转而不是通过氮原子的反转发生的。