| 吡唑酮型成品红成色剂的照相活性与化学结构之关系 |
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| 引用本文： | 陈喆流,朱正华,陈孔常,何月华.吡唑酮型成品红成色剂的照相活性与化学结构之关系[J].影像科学与光化学,1989,7(3):1-6. |
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| 作者姓名： | 陈喆流 朱正华 陈孔常 何月华 |
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| 作者单位： | 华东化工学院精细化工研究所, 上海 200237 |
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| 摘 要： | 本文合成了七种典型的吡唑酮型成品红成色剂、根据Brand提出彩色显影方程γ=Alogτ+B,测定了这些成色剂的照相活性A。作者论证了在相同显影条件下,A值与吡唑酮型成品红成色剂彩色显影的偶合速度成正比。另外,作者运用SCF-PPP-MO方法计算了吡唑酮型成品红成色剂模型分子中偶合位置上的电子密度、超离域度及定域能等反应参数,发现lnA与电子密度具有较好的线性关系,其关系式为: lnA=15.97Qr,-18.03 (n=6,r=0.95) 从而得出:彩色显影偶合反应是静电作用控制的。
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| 关 键 词： | 成色剂 吡唑酮 照相活性 自洽场-PPP-分子轨道理论 |
| 收稿时间： | 1988-01-07 |
THE RELATION BETWEEN PHOTOGRAPHIC ACTIVITIES AND STRUCTURES OF PYRAZOLONE COLOUR COUPLERS |
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| CHEN ZHE-LIU,ZHU ZHENG-HUA,CHEN KONG-CHANG,HE YUE-HUA.THE RELATION BETWEEN PHOTOGRAPHIC ACTIVITIES AND STRUCTURES OF PYRAZOLONE COLOUR COUPLERS[J].Imaging Science and Photochemistry,1989,7(3):1-6. |
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| Authors: | CHEN ZHE-LIU ZHU ZHENG-HUA CHEN KONG-CHANG HE YUE-HUA |
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| Institution: | Research Institute of Fine Chemicals, East China University of Chemical Technology, Shanghai 200237, P. R. China |
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| Abstract: | Seven pyrazolone colour couplers were prepared and their photographic activities A were determined. SCF-PPP-MO was used to calculate the electron densities, localization energies and superdelocalizabilities at the coupling sites of colour couplers. The calculated electron densities Qr, were found to correlate lnA by a linear equation: lnA=15.97Qr-18.03 (n=6,r=0.95) Since A should be directly proportional to k2, the specific rate constant of colour coupling, Qr is related to coulombic attraction between reacting molecules. The coupling reaction of pyrazolone is an electrostatic controlled reaction. |
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| Keywords: | colour coupler pyrazolonc photographic activity SCF-PPP-MO |
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