Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were succe...Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.展开更多
目的：建立测定辣椒面中刚果红染料含量的超高效液相色谱方法。方法：采用氨水-乙醇（30∶70,V/V）提取剂,超声加热辅助提取3次,合并提取液、浓缩后过HLB固相萃取小柱,以5 mL 1%甲酸-甲醇溶液淋洗、5 mL 10%氨水-甲醇溶液洗脱,收集洗脱...目的：建立测定辣椒面中刚果红染料含量的超高效液相色谱方法。方法：采用氨水-乙醇（30∶70,V/V）提取剂,超声加热辅助提取3次,合并提取液、浓缩后过HLB固相萃取小柱,以5 mL 1%甲酸-甲醇溶液淋洗、5 mL 10%氨水-甲醇溶液洗脱,收集洗脱液、氮吹浓缩后定容测定。使用BEH C18色谱柱（50 mm×2.1 mm,1.7 μm）;流动相：A为乙腈,B为10 mmol/L乙酸铵溶液,梯度洗脱;流速0.4 mL/min;检测波长498 nm;柱温40℃。结果：回收率为72%-96%,方法检出限为0.0290mg/kg,相对标准偏差为2.16%-5.97%（n=6）,线性方程相关系数达到0.9999。结论：本方法简便、快速、准确、灵敏,适用辣椒面中刚果红染料含量的测定。展开更多
文章选取了20个以J酸及其衍生物为偶合组分的双偶氮红色活性染料,采用密度泛函理论(DFT),选用B3LYP和PBE0两种杂化泛函在6-31+G(d)基组水平上计算了染料的紫外吸收光谱。通过计算光谱与实验光谱比较发现,B3LYP计算的激发能与实验值更吻...文章选取了20个以J酸及其衍生物为偶合组分的双偶氮红色活性染料,采用密度泛函理论(DFT),选用B3LYP和PBE0两种杂化泛函在6-31+G(d)基组水平上计算了染料的紫外吸收光谱。通过计算光谱与实验光谱比较发现,B3LYP计算的激发能与实验值更吻合,其绝对平均误差(MAE)为0.127 e V,PBE0给出了一个略大误差,其绝对平均误差为(MAE)为0.180 e V。染料分子的主要吸收谱峰主要源于电子从HOMO,HOMO-1,HOMO-2到LUMO,LUMO+1间的π—π*跃迁。展开更多
146：230988r 双偶氮染料化合物，其制造及用于油墨，特别是喷墨印刷油墨以达到具有高光密度和光坚牢度的印刷Monahan，Lilian等（英国富士胶片公司）PCT Int App1，WO2007117632，2007．02-15，31pp（英文） 本发明提供了一种化学式...146：230988r 双偶氮染料化合物，其制造及用于油墨，特别是喷墨印刷油墨以达到具有高光密度和光坚牢度的印刷Monahan，Lilian等（英国富士胶片公司）PCT Int App1，WO2007117632，2007．02-15，31pp（英文） 本发明提供了一种化学式为Ⅰ的染料化合物，其中，A和D各自独立地表示任选取代芳基，或任选取代杂原子芳基；E表示任选取代的吡唑基；Z表示H、卤素、NO2、CN、OH、NH2、COOH、任选取代的烷基、烷氧基或芳氧基；而P为0～5的整数。展开更多
文摘Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.
文摘文章选取了20个以J酸及其衍生物为偶合组分的双偶氮红色活性染料,采用密度泛函理论(DFT),选用B3LYP和PBE0两种杂化泛函在6-31+G(d)基组水平上计算了染料的紫外吸收光谱。通过计算光谱与实验光谱比较发现,B3LYP计算的激发能与实验值更吻合,其绝对平均误差(MAE)为0.127 e V,PBE0给出了一个略大误差,其绝对平均误差为(MAE)为0.180 e V。染料分子的主要吸收谱峰主要源于电子从HOMO,HOMO-1,HOMO-2到LUMO,LUMO+1间的π—π*跃迁。
文摘146：230988r 双偶氮染料化合物，其制造及用于油墨，特别是喷墨印刷油墨以达到具有高光密度和光坚牢度的印刷Monahan，Lilian等（英国富士胶片公司）PCT Int App1，WO2007117632，2007．02-15，31pp（英文） 本发明提供了一种化学式为Ⅰ的染料化合物，其中，A和D各自独立地表示任选取代芳基，或任选取代杂原子芳基；E表示任选取代的吡唑基；Z表示H、卤素、NO2、CN、OH、NH2、COOH、任选取代的烷基、烷氧基或芳氧基；而P为0～5的整数。
