二代光致变色液晶树枝状碳硅烷的光化学研究——端基含36个丁氧基偶氮苯介晶基元

研究了新的含36个丁氧基偶氮苯介晶基元的二代光致变色液晶树枝状碳硅烷(D2)在氯仿、四氢呋喃溶液中的光强,吸收光强,摩尔消光系数,最大吸收波长,量子产率,活化能,异构转换率,光回复异构化反应平衡常数,反-顺光异构化反应速率常数,光回复异构化正/逆和热回复异构化反应速率常数.

Study on Photochemistry of Photochromic Liquid Crystalline Carbosilane Dendrimer of the Second Generation--Containing Thirty-six 4-Butoxyazobenzene Mesogenic Groups in Its Periphery

The photochemical behavior of a new photochromic liquid crystalline (LC) carbosilane dendrimer of the second generation (D2) in CHCl 3 and THF was described. Thirty-six 4-butoxyazobenzene mesogenic fragments were attached in its periphery. The intensity of light, intensity of absorption light, molar extinction coefficient, maximum absorption wave length, quantum yield, activation energy, reaction rate constant of trans/cis photochemical isomerization, photochemical back-isomerization, thermal back-isomerization and the equilibrium constant of photochemical back-isomerization reaction were discussed.