Development and Application of Functional Near Infrared Dyes

1. 合成了含黄原、硫代黄原和硒代黄原体系的染料醚，这些染料在近红外区有吸收。本文制备了由3个取代的1-戊烯-4-in-3-醇衍生的染料乙基红，并对其光谱性质进行了测试，结果表明其在近红外波段有吸收。制备了能吸收近红外光（在CH_2 - Cl_2中可达1056nm）的乙炔类3,6 -二（二甲氨基）芴染料。研究了取代基对吸收最大值的影响。虽然这些染料的发色团系统不大，但它们的光谱特征是显著的。由于二苯基甲烷单元的表微米位和表微米位的环闭合，吸收带向近红外区发生了明显的大色移，这很难归因于平面度的增加。中心环戊二烯基单位的反芳香族或/和二根碱性质将在缀合中起重要作用。以1,1-二芳基-2-丙基- 1- ois为原料，提出了一种简便的合成芳基取代推拉丁二烯的方法。详细考察了几种底物的反应范围。这些染料适用于非线性光学材料。研究了制备的三苯基甲烷染料醚的各种功能特性。在PPP-CI-MO计算的基础上，讨论了它们的特征吸收特性。

1. It was found that the dye ethynologs containing xanthenylium, thioxanthenylium, or selenoxanthenylium system have been synthesized and these dyes have absorptions in the near-infrared (near-IR) region.2. The dye ethynovinylogs derived from three substituted 1-penten-4-in-3-ols have been prepared and their spectral properties were examined to show absorptions in the near-IR.3. Acetylenic analogs 3, 6-bis (dimethylamino) fluorenylium dyes, which absorb near-IR light (up to 1056nm in CH_2 Cl_2), have been prepared. The effects on the absorption maxima by substituents were fully examined. Although the chromophore systems of these dyes are not large, their spectral features are remarkable.The characteristically large bathochromic shifts of the absorption bands into near-IR region by ring closure of the omicron- and omicron'-positions of the diphenylmethane units could hardly ascribed to increase of planarity. The antiaromatic or/and diradicaloid nature of the central cyclopentadienyl unit will play a significant role in conjugation.4. A simple and convenient method was newly developed to afford aryl-substituted push-pull butadienes, i.e. a class of merocyanine dyes from 1,1-diaryl-2-propyn- 1-OIS. The scope of the reaction applying for several substrates was examined in detail. These dyes are excected for non-linear optics materials.5. Various functional characters of the triphenylmethane dye ethynologs prepared are fully examined.6. Their characteristic absorption properties were discussed on the basis of PPP-CI-MO calculations.