维生素K的电荷转移性质研究

Study on the Characteristics of Charge Transfer of Vitamin K

本文报导用分光光度法测定了维生素K_1,K_3及其母体化合物1,4-萘醌分别与N-取代苯胺生成的电荷转移络合物的光谱和热力学参数(K,ΔH,ΔS,ΔG).计算了维生素K_1和K_3的电子亲合能.结果表明,维生素K 与N-取代苯胺作用生成的电荷转移络合物有较小的生成常数,并且由于其萘醌结构上的侧链数目增加而降低.

The spectra and the thermodynamic data (K,△H,△S,△G) of chargetransfer complexes (CTC) formed from vitamin K_1,K_3 and 1,4-naphthoquinone,the parent compound of K_1 and K_3,with N-substituted anilines had been determ-ined spectrophotometrically.The electronic affinities of K_1 and K_3 also calculat-ed.The results show that these CTC have smaller formation constants and decr-ease with the increase of number of side chain in the naphthoquinone structure.