Azo chromophores for nonlinear-optical application

Селиванова, Г. А.

doi:10.1007/s11172-021-3080-z

Cited by 15 publications

(2 citation statements)

References 98 publications

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“…[56] NLO materials with multi-functionalities [28] have gained application in optoelectronics and the biomedical field in the past few decades. [57][58][59] Majority of the D-π-A organic chromophores used in NLO materials are styryl, [60,61] coumarin, [62] anthraquinone, [63,64] azo, [40,65,66] xanthenes, [67,68] indigo, [69] tetracene, [70] and BODIPY [71] based molecules (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

NLOphoric Anthraquinone Dyes – A Review

Gupta,

Sekar

2024

ChemistrySelect

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This review is about anthraquinone dyes. One of the advantages of organic NLOphores materials is the variety of chromophores explored for a wide range of potential applications in optoelectronics and biology. The second and third harmonic generations, as well as hyper‐Rayleigh scattering (HRS), the Z‐scan technique, degenerate four‐wave mixing (DFWM), and density functional theory (DFT), are all covered in this review. The most active sites for establishing enhanced NLO properties were found to be positions 2 and 6 of the anthraquinone core. The structural characteristics of dyes are used to divide them into subcategories. In each section, structures with a higher NLO response are highlighted. Researchers will benefit from this review when designing and synthesizing NLOphores.

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Section: Introductionmentioning

confidence: 99%

NLOphoric Anthraquinone Dyes – A Review

Gupta,

Sekar

2024

ChemistrySelect

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“…Disperse inks for direct inkjet printing of non-pretreated polyester fabrics were prepared and evaluated (Chengyong Gao et al , 2019). To date, many applications of azo compounds are known, including their use as excellent dyes, acid/base indicators of pH change, liquid crystals, optical switches and in radio photonics (Selivanova, 2021). Fully, this applies to azo compounds containing a 1,3,4-Thiadiazole moiety 1–18.…”

Section: Introductionmentioning

confidence: 99%

New thiadiazol azo disperse dyes derivatives and their application as a colored material for silk screen-printing ink for printing on polyester fabric

Abdel-Wahab

Al‐Zahrani

Ali

et al. 2022

PRT

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Purpose This paper aims to synthesize new screen-printing ink formula based on new derivatives of azo thiadiazol disperse dyes and evaluate their characteristics after being printed on polyester fabric substrates. Design/methodology/approach New dispersed dyes based on 1, 3, 4-Thiadiazole derivatives (dyes 1 and 2) were prepared and confirmed by different analyses, infrared (IR), mass and nuclear magnetic resonance (NMR) spectroscopy, and then formulated as colored materials in the screen-printing ink formulations. Printing pastes containing the prepared dyestuffs and other ingredients were used for printing polyester using screen-printing or traditional printing. The characteristics of printed polyester fabric substrates were measured by color measurements such as a*, b*, L*, C*, E, Ho, R% and color strength, as well as light, washing, crock and alkali perspiration fastness, and finally, the depth of penetration was evaluated. Findings The prepared 1, 3, 4-Thiadiazole derivatives (dyes 1 and 2) were obtained from the reaction of 5,5’-(1,4-phenylene)bis(1,3,4-Thiadiazole-2-amine) with resorcinol and m-toluidine as a coupling component. The suitability of the prepared dyestuffs for silk screen-printing on polyester fabrics has been investigated. The prints obtained from a formulation containing dye 1 possess high color strength as well as good overall fastness properties if compared to those obtained using dye 2. Practical implications The method of synthesis of the new dyestuffs and screen-printing ink provides a simple and practical solution to prepare some new heterocyclic disperse azo dyes, and they are formulated in the screen-printing inks for printing on a polyester fabric substrate. Originality/value The prepared disperse dyes based on 1,3,4-Thiadiazole derivatives (dyes 1 and 2) could be used in textile printing of polyester on an industrial scale.

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Theoretical Investigation of Substitution Effect on the First Position of Coumarin Derivatives

Gupta,

Sharma,

Sekar

2024

ChemistrySelect

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Density functional theory (DFT) and time‐dependent DFT (TD‐DFT) were used to investigate the linear and nonlinear optical properties of 1‐substituted coumarins. The molecular electrostatic potential plot, frontier molecular orbitals, and natural bond order analysis were used to study charge transfer properties. The bandgap exhibited an inverse relationship with the chemical potential (µ) and electrophilicity index (ω), while the chemical hardness (η) and hyperhardness (Γ) showed a direct relationship. First‐order hyperpolarizability (β0) and second‐order hyperpolarizability (γ) were directly correlated with the global reactivity descriptors μ and ω and inversely correlated with η and Γ.

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Azo chromophores for nonlinear-optical application

Cited by 15 publications

References 98 publications

NLOphoric Anthraquinone Dyes – A Review

NLOphoric Anthraquinone Dyes – A Review

New thiadiazol azo disperse dyes derivatives and their application as a colored material for silk screen-printing ink for printing on polyester fabric

Theoretical Investigation of Substitution Effect on the First Position of Coumarin Derivatives

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