Bipyridyltriazolium Chlorobismuthate with Thermo-/Photochromic and Photoluminescent Switching Behaviors Based on ET and CT<sup>†</sup>

Li, Guoping; Hao, Pengfei; Shen, Junju; Yu, Tanlai; Li, Huihui

doi:10.1021/acs.inorgchem.6b01906

Cited by 40 publications

(26 citation statements)

References 62 publications

(58 reference statements)

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“…Because the Zn II and Cd II cations have d 10 electronic configurations, they are difficult to oxide or reduce. Therefore, the emissions of CP1–CP3 may be caused by the intraligand or interligand transitions . Because of the similarity between the fluorescence of CP1 and ligand 2‐bpeb, the emission band of CP1 could be attributed to an intraligand emission state.…”

Section: Resultsmentioning

confidence: 99%

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻

Zhang

Zhao

Chen

et al. 2019

Chemistry An Asian Journal

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Due to their striking opticalp roperties, luminescent coordination polymers as sensors for the detection of hazardous species have drawn interest of researchers in consideration of the control of environmental pollution. In this work, the organic ligand 2-(4-((E)-2-(pyridine-2-yl)vinyl)styryl)pyridine (2-bpeb),w hich possesses al arge p-conjugated system, was employedt or eact with d 10 metal ions to obtain novel luminescentc oordination polymers. Three complexes [Cd(2-bpeb) 0.5 (CNA)(H 2 O)] (CP1), [Cd(2-bpeb) 0.5 (NDC)] (CP2) and [Zn(2-bpeb)(BDC)] (CP3)w ere synthesized successfully by introducing carboxylic acids of 4-carboxycinnamic acid (H 2 CNA), 2,6-naphthalene dicarboxylica cid (H 2 NDC) and 1,4benzenedicarboxylica cid (H 2 BDC) as auxiliary ligands. Because of the existence of the large p-conjugated system and d 10 metal ions, all of these coordinationp olymers exhibit striking fluorescencep roperties.I mpressively,a ll of them can functiona ss ensors for the detection of highly oxidizing anionsM nO 4 À and Cr 2 O 7 2À ,w ith an increased sensitivity for MnO 4 À .Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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Section: Resultsmentioning

confidence: 99%

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻

Zhang

Zhao

Chen

et al. 2019

Chemistry An Asian Journal

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“…Therefore, the emissions of compounds 1−4 may be caused by the intraligand or interligand transitions. 3,34,53 After irradiation by visible light for 1 min, the emission peaks of 1, 2, and 4 displayed different extents of hypochromatic shifts of 12, 15, and 3 nm, respectively. The hypochromatic shifts are corresponding to the emergence of viologen radicals.…”

Section: Inorganic Chemistrymentioning

confidence: 99%

Viologen-Based Photochromic Coordination Polymers for Inkless and Erasable Prints

Kan

Wen

et al. 2017

Inorg. Chem.

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Four coordination polymers, namely, [Zn(HL1)(L2)]·HO (1), [Cd(HL1)(L2)]·HO (2), [Zn(L1)(L3)]·HO (3), and [Cd(L1)(L3)] (4) (HL1 = (3,5-dicarboxyl-phenyl)-(4-(2'-carboxyl-phenyl)-benzyl)ether, HL2Cl = 1,1'-bis(4-carboxy-benzyl)-4,4'-bipyridinium dichloride, and L3Cl = 1,1'-dimethyl-4,4'-bipyridylium dichloride), have been synthesized hydrothermally. The structures of compounds 1-4 have been determined by single-crystal X-ray diffraction analyses, and further characterized by elemental analyses, infrared (IR) spectra, powder X-ray diffraction (PXRD) analyses, and thermogravimetric analyses. Compounds 1 and 2 display three-dimensional 2-fold interpenetrating frameworks, whereas compounds 3 and 4 exhibit two-dimensional layer structures. These compounds display photochromic behaviors from pale yellow to green under UV light, visible light, or sunlight. The photochromic mechanisms of these compounds have been studied by IR spectra, PXRD analyses, UV-vis absorption spectra, electron paramagnetic resonance spectra, density functional theory calculations, and X-ray photoelectron spectroscopy. The capabilities of compounds 1 and 2 as inkless and erasable printing media have also been tested. Moreover, the photomodulated fluorescence of these compounds has also been investigated.

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“…In recent years, multiple stimuli-responsive functional materials with multiple states of different colors have become increasingly important and have drawn great attention due to the growing demand for smart materials and developing intelligent technology. − The general stimulus includes light, heat, mechanical pressure, solvent, and electricity. Among various stimulus-sensitive materials, crystalline photochromic materials (azobenzene, spiropyran, Schiff base, furylfulgide, and so on). − can be used in many technological fields, such as information storage, rewritable copy papers, high-density optical memories, protection, decoration, and photomechanics. − However, their potential application is limited because they display multiple states only in the solution state. The responsive materials that are able to provide multiple states in the solid state would be more desirable for potential applications in memory storage systems .…”

Section: Introductionmentioning

confidence: 99%

A Multistimuli Responsive Crystalline Cd(II)-Viologen Coordination Polymer with Single-Crystal–Single-Crystal Transformation

et al. 2021

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It is necessary to develop stable and fast multistimuli responsive materials due to the growing demand in our daily life. In this work, a new viologen-based Cd-complex (1) exhibits multiple thermochromic and photochromic behaviors through 10 states with 7 colors. For example, it responds to both Cu Kα/Mo Kα X-ray sources and UV dual light quickly with a color change from colorless to dark blue (1X) (Cu Kα/Mo Kα X-ray sources) and cyan (1-UV) (UV light), respectively. Interestingly, it exhibits a three-step coloration phenomenon when heated, which is unprecedented in viologen compounds. Crystal 1 undergoes a color change to pink, blue, and brown under 130, 180, and 240 °C, respectively. In addition, upon fumigation, both 1P and 1Q undergo a decoloration process to colorless (1K) and yellow (1T), respectively. Four more states (1P, 1K, 1T, and 1O) obtained via dehydration–hydration treatment are all photochromic. More importantly, via single-crystal–single-crystal transformation (SC–SC), the photochromic and thermochromic behaviors of 1 were investigated from the molecular level, which is also rather rare for thermochromic species. The detailed electron donor and the pathways for electron transfer were clearly given according to the results of crystal structure. The colorful states upon external stimuli may be attributed to the multiple pathways for electron transfer.

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Bipyridyltriazolium Chlorobismuthate with Thermo-/Photochromic and Photoluminescent Switching Behaviors Based on ET and CT^†

Cited by 40 publications

References 62 publications

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻

Viologen-Based Photochromic Coordination Polymers for Inkless and Erasable Prints

A Multistimuli Responsive Crystalline Cd(II)-Viologen Coordination Polymer with Single-Crystal–Single-Crystal Transformation

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Bipyridyltriazolium Chlorobismuthate with Thermo-/Photochromic and Photoluminescent Switching Behaviors Based on ET and CT†

Cited by 40 publications

References 62 publications

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr2O72− and MnO4−

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr2O72− and MnO4−

Viologen-Based Photochromic Coordination Polymers for Inkless and Erasable Prints

A Multistimuli Responsive Crystalline Cd(II)-Viologen Coordination Polymer with Single-Crystal–Single-Crystal Transformation

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Bipyridyltriazolium Chlorobismuthate with Thermo-/Photochromic and Photoluminescent Switching Behaviors Based on ET and CT^†

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻

Water‐Stable Coordination Polymers as Dual Fluorescent Sensors for Highly Oxidizing Anions Cr₂O₇²⁻ and MnO₄⁻