Fundamentals in the chemistry of cyanine dyes: A review

Shindy, H. A.

doi:10.1016/j.dyepig.2017.06.029

Cited by 222 publications

(153 citation statements)

References 38 publications

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“…The synthesis, properties and applications of cyanine dyes reflect the important and vital position of these dyes in the chemistry of dyes and pigments (Shindy et al, 2015;Soriano et al, 2016;Shindy 2017a;Shindy et al, 2017;Shindy 2016a;Shindy et al, 2016;Shindy et al, 2016a;Shindy et al, 2016b;Shindy et al, 2016c;Shindy et al, 2017a;Komljenovic et al, 2016;Zhang et al, 2016;Chen et al, 2016;Arjona et al, 2016;Shindy 2018;Shindy 2018a;Shindy et al, 2018;Shindy et al, 2018a;Shindy et al, 2019;Shindy et al, 2020).…”

Section: Synthesis Of Different Classes Of Five/six Membered Heterocymentioning

confidence: 99%

Synthesis of different classes of five/six membered heterocyclic cyanine dyes: A review

Int¹

2019

Preprint

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In this paper, synthesis of different classes of five/six membered heterocyclic cyanine dyes has been reviewed. In this paper review detailed synthesis steps were represented via equations. The synthesis covers, monomethine cyanine dyes (simple cyanine dyes), dimethine cyanine dyes, trimethine cyanine dyes (carbocyanine dyes), styryl cyanine dyes (hemicyanine dyes), aza-styryl cyanine dyes (aza-hemicyanine dyes and/or aza-cyanine dyes), merocyanine dyes (acyclic merocyanine dyes and cyclic merocyanine dyes) and apocyanine dyes. Besides, in the introduction section of this review paper some light is focused on the uses, applications and properties of cyanine dyes. This review paper is informative, useful and very readable for synthetic dye chemists, researchers and students who look for the different methods in the synthesis and preparation of various classes of five/six membered heterocyclic cyanine dyes with special emphasize in the field of heterocyclic and/or cyanine dyes chemistry. This specific type of collective review in the synthesis of different classes of only five/six membered heterocyclic cyanine dyes has been paid little attention and has great importance in the chemistry literature.

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Section: Synthesis Of Different Classes Of Five/six Membered Heterocymentioning

confidence: 99%

Synthesis of different classes of five/six membered heterocyclic cyanine dyes: A review

Int¹

2019

Preprint

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“…So, we may say that the spectral sensitization of one dye is higher than the other one if the wavelength of the maximum absorption spectrum of the former one is longer than that of the latter one. Inversely, we may say that the spectral sensitization of one dye is lower than the other one if the wavelength of the maximum absorption spectrum of the former one is shorter than that of the latter one (Shindy, et al, 2017;Shindy, 2017). Explanations as in Table 1 www.bosaljournals/chemint/ editorci@bosaljournals.com…”

Section: Spectral Sensitization Evaluationmentioning

confidence: 99%

Novel styryl and aza-styryl cyanine dyes: Synthesis and spectral sensitization evaluation

Int¹

2019

Preprint

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Novel styryl cyanine dyes and aza-styryl cyanine dyes having the nucleus of furo[(3,2-d)pyrazole;(3',2'-d)oxazole] iodide salt were prepared. Spectral sensitization evaluation for all the synthesized styryl and aza-styryl cyanine dyes was carried out through investigating their electronic visible absorption spectra in 95% ethanol solution. The dyes were thought to be better spectral sensitizers when they absorb light at longer wavelength bands (bathochromic shifted and/or red shifted dyes). Consequently the spectral sensitization of the dyes decreased when they absorb light at shorter wavelength bands (hypsochromic shifted and/or blue shifted dyes). The results discussed in this study revealed that the spectral sensitization properties of the examined dyes is highly effected by the type of the X substituted in the phenyl ring system for the styryl cyanine dyes and by the type of the phenyl and/or the naphthyl ring system for the aza-styryl cyanine dyes. Structural confirmations were identified by elemental analysis, visible spectra, IR and 1H NMR spectroscopic data.

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“…Recently their multifarious applications in optical information display media, as energy transfer media for solar batteries, in therapeutic antimalignant photodynamics and antibacterial activities withdrew the attention of chemists [1][2][3]. Some voltage sensitive fluorescent cyanine colorants are synthesized and used in correction of motion artifact in transmembrane in heart [4][5][6][7][8]. Though some of asycyanine colorants are synthesized by using quinalidinium salt and benzthiazolium salts and plane/substituted styryl phenyl ketone and their absorption maxima have been analysed, but very few literature are found about the synthesis of colorants using lepidinium salt and above ketones.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Spectroscopic Characterisation of Some Novel Butadienyl Asycyanine Colorants having Lepidine Moiety

Sajjad

Yadav

Ali

et al. 2019

CSIJ

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Twenty-one novel chromophoric chain β-substituted butadienyl asycyanine colorants have been synthesized by catalytic condensation of (i) dimethylaminostyryl phenyl ketone, (ii) 4ʹ-dimethylaminostyryl-4ʹ-nitrophenyl ketone and (iii) 4ʹ-dimethylaminostyryl-4ʹ-methoxyphenyl ketone with seven lepidinium methyliodide salts in ethanolic DMF medium using piperidine as basic catalyst. These colorants were synthesized with the objective to study the effect of electron acceptor and electron donor group substituent at 4ʹ-position in the chain β-phenyl nucleus on visible absorption maxima. The newly prepared colorants were found to exhibit uniform increase in absorption maxima i.e. Red shift (RS), when collated with analogues having no substituent in the β-phenyl nucleus. Again the absorption maxima of the title colorants were found to be higher than the absorption maxima of previously prepared butadienyl colorants having quinoline mioety of same conjugated system.

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Fundamentals in the chemistry of cyanine dyes: A review

Cited by 222 publications

References 38 publications

Synthesis of different classes of five/six membered heterocyclic cyanine dyes: A review

Synthesis of different classes of five/six membered heterocyclic cyanine dyes: A review

Novel styryl and aza-styryl cyanine dyes: Synthesis and spectral sensitization evaluation

Synthesis and Spectroscopic Characterisation of Some Novel Butadienyl Asycyanine Colorants having Lepidine Moiety

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