不同取代基的噻碳菁和吲哚碳菁染料对其在溴化银微晶上吸…

本文研究了５－位不同取代基的噻碳菁和吲哚碳菁染料对其在立方型颗粒和Ｔ－颗粒溴化银微晶上吸附能力的影响，并采用ＡＣＦＥＭ（ＡｎａｌｙｔｉｃａｌＣｏｌｏｒＦｌｕｏｒｅｓｃｅｎｃｅＥｌｅｃｔｒｏｎＭｉｃｒｏｓｃｏｐｙ）研究了上述结构染料对其吸附在溴化银微晶所形成的Ｊ－聚集体尺寸分布的影响，实验结果表明，对吲哚碳菁染料来说，立方体溴化银微晶表面的吸附能力较Ｔ－颗粒溴化银微晶表面的吸附能力强，但对噻碳菁染料     

不同取代基的噻碳菁和吲哚碳菁染料对其在溴化银微晶上吸附能力及形成J-聚集体尺寸分布的影响

本文研究了５－位不同取代基的噻碳菁和吲哚碳菁染料对其在立方型颗粒和Ｔ－颗粒溴化银微晶上吸附能力的影响，并采用ＡＣＦＥＭ（ＡｎａｌｙｔｉｃａｌＣｏｌｏｒＦｌｕｏｒｅｓｃｅｎｃｅＥｌｅｃｔｒｏｎＭｉｃｒｏｓｃｏｐｙ）研究了上述结构染料对其吸附在溴化银微晶所形成的Ｊ－聚集体尺寸分布的影响．实验结果表明，对吲哚碳菁染料来说，立方体溴化银微晶表面的吸附能力较Ｔ－颗粒溴化银微晶表面的吸附能力强；但对噻碳菁染料来说则相反，它们在Ｔ－颗粒溴化银微晶表面的吸附能力较立方体溴化银微晶表面的吸附能力强．另外，对５－位不同取代基的噻碳菁染料而言，无论是在立方型颗粒或Ｔ－颗粒溴化银微晶上的吸附能力来说，含取代基（无论４－取代基是吸电子型还是推电子型）的噻碳菁染料较未取代的噻碳菁染料强；而５－位取代基是吸电子型的噻碳菁染料更有利于其吸附在Ｔ－颗粒溴化银微晶表面．此外，本文还进一步证明了溴化银微晶表面上染料Ｊ－聚集体的生长过程是符合奥斯瓦尔特成熟过程的．吲哚碳菁染料在Ｔ－颗粒溴化银微晶上形成的Ｊ－聚集体的平均尺寸明显大于在立方体溴化银微晶上形成的Ｊ－聚集体的平均尺寸．吸附在立方体溴化银微晶上的５－不同取代基的噻碳菁染料对其形成Ｊ－聚集体     

生物标示用3H—吲哚菁染料

随着生物技术和荧光标示技术的飞速发展，3H0吲哚菁染料已成为在DNA，蛋白质及核酸等分析检测中使用的主要荧光探针。其中代表性化合物Cy3.、Cy5.作为新一代商品化荧光标示剂在生物芯片、分子信标等方面得到了重要应用。本文综述了该类碳菁染料在生物领域中取得的重大应用进展，并探讨了其结构与性能之间的关系。     

氰苄基方酸菁染料的合成及光谱性能

以2,3,3-三甲基-3H-吲哚为原料,合成了N-氰基取代吲哚啉季铵盐。采用一步法将方酸与吲哚啉季铵盐缩合制得对称氰苄基方酸菁染料,采用重结晶法对合成染料进行分离提纯,利用核磁共振氢谱、红外光谱、质谱等对染料进行了结构表征。考了查染料的光谱性能。     

近红外吸收功能染料的合成

以缩合剂1，5-二苯胺-戊-1，3-二烯盐酸化物与1，3，3，5-四甲基-2-亚甲基吲哚啉为主要原料合成了1，3，3．5，1’，3’，3’，5'-八甲基吲哚三碳菁近红外吸收染料，收率达61．5％，采用熔点测定、元素分析、IR验证了产品的结构。通过电子吸收光谱测得其最大吸收波长为760nm。     

生物标示用3H-吲哚菁染料

随着生物技术和荧光标示技术的飞速发展,3H-吲哚菁染料已成为在DNA、蛋白质及核酸等分析检测中使用的主要荧光探针。其中代表性化合物Cy3.、Cy5.作为新一代商品化荧光标示剂在生物芯片、分子信标等方面得到了重要应用。本文综述了该类碳菁染料在生物领域中取得的重大应用进展、并探讨了其结构与性能之间的关系。     

甲苄基不对称三甲川菁染料的合成及光谱性能

以对肼基苯磺酸和3-甲基-2-丁酮为原料经催化合成2,3,3-三甲基-3H-吲哚-5-磺酸,进一步制得钾盐。经钾盐合成N-甲苄基取代吲哚季铵盐。采用一步法将钾盐与吲哚季铵盐缩合为一种不对称三甲川菁染料,并考查其光谱性能。所合成染料经C-18反相柱分离提纯,利用核磁共振氢谱进行了结构表征。     

一种中位含氯取代环己烯桥环三碳菁红外染料的合成及表征

以缩合剂２ 氯 １ 甲酰基 ３ 羟亚甲基环己烯、２ 亚甲基 １,３,３ 三甲基吲哚啉和碘化钾等为原料,通过在缩合的同时进行吲哚啉的季胺化反应,以６２．５％的收率合成了１,３,３,１’,３’,３’ 六甲基 １１ 氯 １０,１２ 亚丙基三碳菁红外染料,并采用熔点测定、元素分析、ＩＲ及１Ｈ ＮＭＲ分析确证了产物的结构。该染料的电子吸收光谱表明,它的最大吸收波长为７７４ｎｍ,最大摩尔消光系数为２．７×１０５Ｌ·ｍｏｌ－１·ｃｍ－１。该染料易溶于二氯甲烷、三氯甲烷、乙腈和醇类等溶剂中。     

水溶性羧苄基甲苄基三甲川菁染料的合成及光谱性能

文章以对肼苯磺酸和3-甲基-2-丁酮为原料合成2,3,3-三甲基-3H-吲哚-5-磺酸,再制得钾盐,由钾盐合成两种N-烷基取代吲哚季铵盐,最后采用一步法合成水溶性三甲川菁染料。所合成的染料经C-18反相柱分离提纯,利用核磁共振氢谱进行结构表征,并测试染料的光谱性能。     

含镍配合物阴离子的吲哚三碳菁合成及性能

本文合成三种含镍配合物阴离子的吲哚三碳菁染料，通过红外光谱、核磁共振氢谱及元素分析确定其结构，同时研究了电子吸收光谱、溶解度及光稳定性．结果表明，镍配合物负离子引入，染料的稳定性有所改进，但在有机溶剂中溶解度下降．     

蓝-绿波段激光染料的研究

合成了 4个蓝 -绿波段的激光染料 ,测定了它们的光谱数据和激光性能 ,结果表明含三氟甲基的 2个染料具有较宽的调谐范围 :470～ 540nm和 456～ 51 6nm ;较高的激光效率 :41 4%和2 6 6%。同时 ,分别采用Nicol理论和Lippert理论对其中 2个香豆素型激光染料的吸收光谱和发射光谱的溶剂效应进行了研究 ,揭示了染料Stokes红移的内在本质。     

Design,synthesis, and application of amphoteric macromolecular dyes with controllable solubility

A series of amphoteric macromolecular dyes were designed and synthesized from poly(acrylamide‐co‐vinylamine) oligomer and reactive dyes. The structure of the synthesized dyes was characterized by fourier transform infrared spectra, mass spectra, and ultraviolet–visible spectroscopy analysis. The solubility of the dyes was also investigated. The results showed that the solubility of the dyes can be controlled by tuning the ratio of amino to sulfonate groups in amphoteric macromolecular dyes. Based on the results of controllable solubility conducted by visible light transmittance measurements, amphoteric macromolecular dyes were used to dye cotton fiber; the fixation of the dye on cotton was more than 95% when crosslinking agent was added. The dyed samples exhibited good fastness to washing and rubbing. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 41120.     

Synthesis and antimicrobial activity of certain novel monomethine cyanine dyes

A series of novel monomethine cyanine dyes were synthesized by using 3-methyl-5-substituted-1-phenyl-pyrano[2,3-c]pyrazole derivatives 2a–c. Reaction of equimolar ratios of 2a–c with 2(4)-methyl heterocyclic quaternary salts afforded the corresponding monomethine cyanines 3a–c. Reaction of compound 5 with 2(4)-methyl heterocyclic quaternary salts gives monomethine 6a–c. Condensation reaction of equimolar ratios of compounds 7 and 9a,b with 2(4)-methyl heterocyclic quaternary salts afforded the corresponding monomethine cyanines 8a–c and 10a,b respectively. The new synthesized monomethine cyanine dyes were identified by elemental analyses, IR, ¹H-NMR and Ms spectral data. The electronic absorption spectra in ethanolic solution of novel monomethine cyanine dyes were measured and the antimicrobial activity of some selected monomethine cyanine dyes was discussed.     

偶氮染料的偶氮-醌腙互变异构的研究(Ⅰ) 1-苯基偶氮萘的偶氮-醌腙异构

本文合成了10个1-苯基偶氮萘染料,并测定了其~1H、~（13）C NMR（核磁共振）谱,对~1H谱进行了归属,确定了2种异构体的判据,讨论了萘环上取代基的电子效应和空间障碍、溶剂的极性和pH值对偶氮-醌腙互变异构的影响。     

菁染料和份菁染料溶液的光降解机理的研究

利用UV－Vis吸收光谱仪和光化学反应器,研究了菁染料和份菁染料溶液的光降解动力学,认为染料在乙腈溶液中的光褪色反应服从假一级或零级动力学,利用GC／MS光谱仪检测了染料的光降解产物,与相应的份菁染料相比,携带正电荷的菁染料具有相对较好的光稳定性,研究结果表明,菁染料光降解反应的中间体可能是染料的半氧化态Dye^ ,并利用纳秒级闪光光解技术研究了Dye^ 的瞬态吸收光谱。     

Synthesis and colour spectrophotometric measurements of some novel merocyanine dyes

Novel merocyanine dyes cyanine dyes derived from benzo[2,3-b; 2′, 3′ - b′ ]bis pyrazolo[4,5-b]-l,4-(oxa-, thia-, and pyra)-zine-6,12-dione ring system were prepared. The prepared cyanines involve acyclic merocyanine and cyclic merocyanine types. Colour spectrophotometric measurements for all the synthesized merocyanine dyes were investigated in 95% ethanol solution. Colour spectrophotometric measurements for some selected synthesized merocyanines were examined in pure solvents having different polarities and/or in aqueous universal buffer solutions. General chemical-physical characterization was carried out through elemental analysis, IR and ¹H NMR spectral data.     

Surface-Enhanced Raman Analysis of some Polycyclic Aromatic Dyes used in the Cosmetics and Food Industries

Abstract

The Surface-Enhanced Raman spectra of three important polycyclic aromatic dyes used in the food and cosmetic industries. Erythrosine, Eosine, and Phloxine, are recorded for the first time. The ability of the Surface-Enhanced Raman scattering techniques to detect these dyes at trace level is demonstrated. Such techniques minimize the fluorescence background in these highly fluorescing dyes, bringing out the Surface-Enhanced Raman Spectra features. The Normal Raman Spectra of erythrosine and phtalazine were also recorded and compared with their Surface-Enhanced Raman Spectra to illustrate the fluorescence suppression in Surface Enhanced Raman Spectra. The vibrational spectra features of the three dyes are discussed in terms of their molecular structure and the vibrations of the aromatic rings.     

2-丁酮二酸二乙酯及其衍生物在染料工业中的应用

本文介绍了2-丁酮二酸二乙酯及其所衍生的吡唑啉酮中间体的合成,给出了这些产品的化学结构式、CAS登记号和它们所合成的染料等信息。     

四碳连接臂水溶性吲哚方酸双菁染料的合成及性能

以苯肼和对肼基苯磺酸为原料合成了一种水溶性对称吲哚方酸双菁染料。最终染料用C-18反相柱进行分离提纯,通过核磁共振氢谱对染料结构进行了表征,测试其在不同溶剂中的紫外-可见吸收和荧光发射光谱。结果发现所合成双菁染料的吸收和发射光谱范围以及Stokes位移、摩尔消光系数与单菁染料相比没有大的变化,荧光量子产率小于单菁染料。