The synthesis, two-photon absorption and blue upconversion fluorescence of novel, nitrogen-containing heterocyclic chromophores

Sun, Yi‐Feng; Huang, Wei; Lu, Can‐Zhong; Cui, Yiping

doi:10.1016/j.dyepig.2008.08.003

Cited by 38 publications

(10 citation statements)

References 32 publications

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“…Recently, Cui et al investigated simple phenanthro[9,10- d ]imidazoles 58 – 60 as two-photon absorbing molecules with blue upconversion fluorescence [ 68 ]. These imidazole derivatives proved to be potent two-photon absorbing molecules with TPA cross-section δ up to 20.65 GM at 800 nm.…”

Section: Reviewmentioning

confidence: 99%

Imidazole as a parent π-conjugated backbone in charge-transfer chromophores

Kulhánek¹,

Bureš²

2012

Beilstein J. Org. Chem.

137

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SummaryResearch activities in the field of imidazole-derived push–pull systems featuring intramolecular charge transfer (ICT) are reviewed. Design, synthetic pathways, linear and nonlinear optical properties, electrochemistry, structure–property relationships, and the prospective application of such D-π-A organic materials are described. This review focuses on Y-shaped imidazoles, bi- and diimidazoles, benzimidazoles, bis(benzimidazoles), imidazole-4,5-dicarbonitriles, and imidazole-derived chromophores chemically bound to a polymer chain.

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Section: Reviewmentioning

confidence: 99%

Imidazole as a parent π-conjugated backbone in charge-transfer chromophores

Kulhánek¹,

Bureš²

2012

Beilstein J. Org. Chem.

137

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“…Furthermore, the dyes 59a-d have been proved to be potential antimicrobial agents against E. coli, B. subtilis, S. aureus, and L. monocytogenes [44]. The dye 60 exhibited a strong two-photon upconverted blue fluorescent emission peak around 443-476 nm [45].…”

Section: Imidazole Dyesmentioning

confidence: 99%

Microwave Synthesized Functional Dyes

Marganakop¹,

Kattimani²,

Satyanarayana³

et al. 2021

Microwave Heating - Electromagnetic Fields Causing Thermal and Non-Thermal Effects

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Microwave chemistry involves the application of microwave radiation to chemical reactions and has played an important role in organic synthesis. Functional dyes are those with hi-tech applications and this chapter attempts to provide an overview of the recent developments in microwave-assisted synthesis of functional dyes. Emphasis has been paid to the microwave-assisted synthesis of dye molecules which are useful in hi-tech applications such as optoelectronics (dye-sensitized solar cells), photochromic materials, liquid crystal displays, newer emissive displays (organic-light emitting devices), electronic materials (organic semiconductors), imaging technologies (electrophotography viz., photocopying and laser printing), biomedical applications (fluorescent sensors and anticancer treatment such as photodynamic therapy). In this chapter, the advantages of microwaves as a source of energy for heating synthesis reactions have been demonstrated. The use of microwaves to functional dyes is a paradigm shift in dye chemistry. Until recently most academic laboratories did not practice this technique in the synthesis of such functional dyes but many reports are being appeared in the journals of high repute.

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“…In addition, their optical properties (fluorescence 5, 6 and chemiluminescence) are of particular concern for material scientists. In this context, they have received great attention for the development of fluorescence labelling agents, 7-9 materials for biological imaging application, 10 bluelight emitting materials, 11 luminophores for optoelectronic applications 12 or chromophores for non linear optic systems. 13 Recently, some distriarylimidazoles have been investigated for their piezochromism, photochromism and thermochromism properties, and the results reported suggest potential applications in molecular photonics and sensing.…”

Section: Introductionmentioning

confidence: 99%