The cationic dye may be chosen from azo dyes, azomethine dyes, methine dyes and xanthene dyes.
优选地，阳离子染料选自偶氮染料、偶氮甲碱染料、次甲基染料和？吨染料。
As the chromophore relaxes, the twist of the C15 methine bridge about its two dihedral angles is reversed.
当发光基团松弛，C15次甲基桥的两个二面角的扭曲是相反的。
The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of an amino group.
该染料的甲川链上的中位碳原子与氨基的氮原子相连。
Near-infrared cyanine dyes can be obtained by increasing length of conjugated methine chain in dye molecules.
菁染料光谱性能优良，可通过增加甲川链长度，获得近红外菁染料。
Meanwhile, with the introduction of phenylene units into polymer backbone, a series of poly(heteroarylene methine) polymers were synthesized.
通过将苯阻隔单元引入到聚合物的主链，制备了一系列具有良好溶解性的聚芳杂环次甲基聚合物。
The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .
该染料甲川链上的碳原子与氨基的氮原子相连，而该氮原子又与染料的甲川链形成烯胺。
The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .
该染料甲川链上的碳原子与氨基的氮原子相连，而该氮原子又与染料的甲川链形成烯胺。
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