Photochromism of dye containing Schiff base-metal complex: A revisit through spectro-kinetic, thermodynamic and theoretical analyses for the design of a molecular logic gate

Bar, Nandagopal; Chowdhury, Pranesh; Roy, Debiprasad; Adhikari, Sangita; Mondal, S. K.; Das, Gourab Kanti; Chandra, Swapan K.

doi:10.1016/j.jphotochem.2021.113505

Cited by 21 publications

(13 citation statements)

References 56 publications

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“…They reported the photochromism of dye-containing Schiff-base−metal complex and its detailed spectrokinetic, thermodynamic, and theoretical analyses (Figure 22). 49 Their findings show that metal-guided excitedstate intramolecular proton transfer (MG-ESIPT) is the key factor for photochromism. Theoretical studies by the same group led to a clear understanding of the phenomenon (Figure 23).…”

Section: ■ Structural Features and Physicochemical And Photophysical ...mentioning

confidence: 99%

“…Later, in 2020, Li et al designed various logic gates (Figure 32) exploiting tunable optical properties of their developed material (Figure 21) in the presence of different metal ions. 66 Recently, Prof. Chowdhury and his research group developed a smart molecular logic gate 49 using the excellent reversible photochromic property of their synthesized material (Figure 22). Parts A and B of Figure 33 represent molecular logical operation and the corresponding truth table, respectively.…”

Section: ■ Structural Features and Physicochemical And Photophysical ...mentioning

confidence: 99%

“…Among the three, the metal complex-based photochromic materials are very recent. Particularly, RhB-based photochromic metal complexes are very interesting because they give rise to fantastic characteristic properties under the guidance of a coordinating metal. − …”

Section: Photochromismmentioning

confidence: 99%

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A Brief Review on Advances in Rhodamine B Based Chromic Materials and Their Prospects

Bar

Chowdhury

2022

ACS Appl. Electron. Mater.

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Chromic (stimuli-responsive reversible color change in the visible region) materials have been used in a number of commercial outlets with increasing demands. It is an important scientific issue and research hot spot in recent years simply due to its huge prospects. It includes the following: (i) photochromics in sunglasses, probes, optical data storage, molecular logic-gate and keypad lock, photopatterning, and photoprinting; (ii) thermochromics in paints, inks, architecture, molecular thermometers, and cotton fabrics; (iii) mechnochromics in plastics, textiles, and anticounterfeiting systems; (iv) electrochromics in switchable glass, smart paper strips, and flexible electronics; (v) halochromics in digital image colorimetry and acid−base indicators; (vi) ionochromics in colorimetric sensors and complexometric indicators; and (vii) hydrochromics in water-jet printing. The well-known rhodamine B (RhB) dye has now been considered a unique stimuli-dependent chromic material by researchers because of its outstanding photophysical and physicochemical properties that are suitable for real applications. In this review work, almost all of the works published on RhB-based stimuli-responsive materials from 1977 to 2022 have been studied critically, and significant progress is arranged in chronological order. In addition, an attempt has been made to show the prospects of what they can do in human service in the near future.

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Section: ■ Structural Features and Physicochemical And Photophysical ...mentioning

confidence: 99%

Section: ■ Structural Features and Physicochemical And Photophysical ...mentioning

confidence: 99%

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A Brief Review on Advances in Rhodamine B Based Chromic Materials and Their Prospects

Bar

Chowdhury

2022

ACS Appl. Electron. Mater.

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“…The xanthene and the g-lactam (5-atom ring) containing salicylaldehyde moieties of the Schiff base ligand (L) remain in a plane perpendicular to each other (as per single crystal XRD data). 20 In the synthesized Schiff base ligand (L), the g-lactam containing the 'O' atom and only one of the phenolic-OH groups are close enough to coordinate with Zn 2+ , but not the farther one (another ortho phenolic-OH group).…”

Section: Mechanism Of the Photochromic Processmentioning

confidence: 99%

“…In a process to solve this long-standing problem, in 2021, the research group under the leadership of Prof. P. Chowdhury from Visva-Bharati, India reported the mechanism of metal-guided photochromism in light of spectro-kinetic, thermodynamic and theoretical analyses. 20 However, there are still some questions that need to be addressed in metal-guided photo-tautomerism, such as: (I) what is the Jablonski diagram of the proton transfer process involved? (II) why is the presence of the phenolic-OH group, zinc metal and ether-based solvent (weak polar aprotic) so crucial in such photochromism?…”

Section: Introductionmentioning

confidence: 99%

Synthesis of an advanced metal-guided photochromic system for molecular keypad lock: detailed experimental findings and theoretical understanding

et al. 2022

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Flexible Organic Chiral Crystals with Thermal and Excitation Modulation of the Emission for Information Transmission, Writing, and Storage

Pan,

Lan,

et al. 2024

Angewandte Chemie

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Organic single crystals quickly emerge as dense yet light and nearly defect‐free media for emissive elements. Integration of functionalities and control over the emissive properties are currently being explored for a wide range of these materials to benchmark their performance against organic emissive materials diluted in powders or films. Here, we report mechanically flexible emissive chiral organic crystals capable of an unprecedented combination of fast, reversible, and low‐fatigue responses. UV‐excited single crystals of both enantiomers of the material, 4‐chloro‐2‐(((1‐phenylidene) imino) methyl) phenol, exhibit a drastic yet reversible change in the emission color from green to orange‐yellow within a second and can be cycled at least 2000 cycles. The photoresponse was found to depend strongly on the excitation intensity and temperature. Combining chirality, mechanical compliance, rapid emission switching, multiple responses, and writability by UV light, this material provides a unique and versatile platform for developing organic crystal‐based materials for on‐demand signal transfer, information storage and cryptography.

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Photochromism of dye containing Schiff base-metal complex: A revisit through spectro-kinetic, thermodynamic and theoretical analyses for the design of a molecular logic gate

Cited by 21 publications

References 56 publications

A Brief Review on Advances in Rhodamine B Based Chromic Materials and Their Prospects

A Brief Review on Advances in Rhodamine B Based Chromic Materials and Their Prospects

Synthesis of an advanced metal-guided photochromic system for molecular keypad lock: detailed experimental findings and theoretical understanding

Flexible Organic Chiral Crystals with Thermal and Excitation Modulation of the Emission for Information Transmission, Writing, and Storage

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