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本文研究了11个苯酚型成青成色剂的活性和其结构的关系。以T.S.S.(N,N-二乙基对苯二胺硫酸盐)为显影剂,采用外偶法对这些成色剂进行彩色显影,结果证明,其彩色显影动力学符合Elvegard关系式。本研究中,用HMO方法计算了这些成色剂的偶合位置的超离域度S_r~((E))。作为化学活性的表征,研究中发现,此参数能较好地反应成色剂的偶合活性,并发现,成色剂偶合位置的邻位取代基对彩色显影的偶合反应有空间障碍作用。
In this paper, the relationship between the activity of 11 phenol-type cyan couplers and their structure was studied. Using T.S.S. (N, N-diethyl-p-phenylenediamine sulfonate) as the developing agent, these couplers were color-developed by the external couple method. The results showed that the color development kinetics fit the Elvegard relation. In this study, the HMO method was used to calculate the S_r ~ (E) of the coupling region of these couplers. As a characterization of chemical activity, it was found that this parameter can better reflect the coupling activity of the coupler, and found that the ortho substituents on the coupling site of the coupler have steric hindrance to the coupling reaction of color development.