Photochromism of a Methyl Viologen Bismuth(III) Chloride: Structural Variation Before and After UV Irradiation

Xu, Gang; Guo, Guo‐Cong; Wang, Mingsheng; Zhang, Zhang-Jin; Chen, Wen‐Tong; Huang, Jin‐Shun

doi:10.1002/ange.200700122

Cited by 57 publications

(27 citation statements)

References 45 publications

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“…Viologen and related derivatives have been widely used as templates to construct metal-halide-viologen complexes with various structure types because of their application in biology, electrochemistry and photochemistry [7][8][9][10]. In order to find new organic-inorganic hybrid materials based on methyl viologen (MV), the title compound has been prepared and its crystal structure has also been determined by X-ray single crystal diffractions.…”

Section: Discussionmentioning

confidence: 99%

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Song

2017

Zeitschrift Für Kristallographie - New Crystal Structures

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CCDC no.: 1465342The crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters. Source of materialZnCl 2 (0.068 g, 0.20 mmol), methyl viologen chloride (0.054 g, 0.1 mmol) and HCl (1.0 mL) in ethanol (10.0 mL) were mixed and stirred for 10 min, and then sealed in an

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Section: Discussionmentioning

confidence: 99%

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Song

2017

Zeitschrift Für Kristallographie - New Crystal Structures

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“…The experiments were performed at room temperature in deionized water containing 0.05 mol L −1 (Bu) 4 NBr as the supporting electrolyte at a scan speed of 50 mV s −1 . Two platinum plate electrodes (6 mm × 3 mm) were used as the working and auxiliary electrodes, and Ag/AgCl electrode was used as a reference electrode.…”

Section: Characterizationmentioning

confidence: 99%

“…Electrochemical properties of uncross-linked SHBV 2+ and cross-linked SHBV 2+ film were evaluated by cyclic voltammetry in (Bu) 4 NBr aqueous solution. Fig.…”

Section: Electrochemistry Of Shbv 2+mentioning

confidence: 99%

“…5b shows a continuously scanned cyclic voltammogram for crosslinked SHBV 2+ film in 0.05 mol L −1 (Bu) 4 NBr solution at a scan rate of 50 mV s −1 . Fig.…”

Section: Electrochemistry Of Shbv 2+mentioning

confidence: 99%

“…Viologens (1, 1'-disubstitued-4, 4'-bipyridine salts) with extended π-conjugation, can exhibit excellent photochromic and electrochromic characteristics, excellent fatigue resistance, and good environmental stability (1-3) when they were in their crystalline states (4), dispersed in appropriate aprotic matrixes (5), incorporated polymers by copolymerization, or graft-modified reactions (6)(7)(8)(9). Hyperbranched polymers possess unique structures such as three-dimensional dendritic architecture, globular conformation, amorphous nature, and multi-functionality at end groups, which impart them unique physical and chemical properties such as good solubility, low viscosity, and easily graftmodified (10 out modified and functionalized reaction for hyperbranched polymer such as end capping, terminal grafting, surface growing, hypergrafting, hybrid blending, and so forth.…”

Section: Introductionmentioning

confidence: 99%

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Preparation, Characterization of Styrene-Functional Hyperbranched Viologen, and Its Application in Optical Writing and Electrical Erasing Device

et al. 2014

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Styrene-functional hyperbranched viologen (SHBV 2+ ) was successfully synthesized and characterized in detail by FTIR, 1 H NMR, and XPS spectra, respectively. Subsequently, it was cured by visible light to obtain cross-linked hyperbranched viologen film. It is noteworthy that cross-linked SHBV 2+ film possessed better photochromic and electrochromic performances. After UV illumination for 60 s, the cross-linked SHBV 2+ film can swiftly change its color from pale yellow to deep bluish violet, whereas the absorbance of SHBV 2+ film at 610 nm did not change significantly and was still retained about 0.423 after 20 coloring/bleaching cycles. The single-type SHBV 2+ EC device can undergo reversible color change in response to the alternate external voltages of −2.0 V and 2.0 V, respectively, while the changes in optical transmission and charge density of EC device at 550 nm did not deteriorate significantly and still remained about 48.2% and 13.85 mC·cm −2 after 10 coloring/bleaching cycles. Furthermore, single-type SHBV 2+ PEC device possessed better optical writing and electrical erasing performances. After 10 repeated writing/erasing cycles, the contrast did not decrease significantly and still remained about 48.0%, while the electrical erasing time did not deteriorate significantly and remained about 22.0 s. This device can realize rapid storage, modulation, and erasing of optical information.

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Photochromism of a 3D Cd^II Complex with Two Captured Ligand Isomers Generated In Situ from the Same Precursor

et al. 2008

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Photochromic compounds have gained intense interest owing to their novel photochemical and photophysical reactions as well as their various potential applications such as in sunglasses and optical memories.[1] An appreciable number of photochromic families have been reported to date; [2] however, those based on an electron-transfer (redox) chemical process, especially for metal-organic compounds, are rare.[3] We present herein a hydrothermally synthesized 3D complex [Cd 2 (ic)(mc)(4,4'-bipy) 3 ] n ·4n H 2 O (1Y; ic= itaconate, mc = mesaconate) which exhibits reversible radicalbased redox photochromic behavior. This compound also merits attention for its unusual five-connected Archimedeantype topological structure and unexpected "capture" of isomeric ic and mc ligands that are generated in situ from trans-propene-1,2,3-tricarboxylic acid (H 3 L, Scheme 1).Yellow prismatic crystals of 1Y accompanied by a few colorless block crystals of [Cd 3 L 2 (H 2 O) 6 ] n (2; Figure S1 in the Supporting Information) were obtained by the hydrothermal reaction of CdCO 3 , 4,4'-bipy, H 3 L, and deionized water in a molar ratio of 1:1:1:1111 at 120 8C for 12 h. Powder X-ray diffraction (PXRD) verified the purity of a mechanically separated sample of 1Y ( Figure S2 in the Supporting Information). Thermal analysis and PXRD data show that compound 1Y still keeps its metal-organic framework at 200 8C after the elimination of lattice water molecules ( Figure S2 and S3 in the Supporting Information).A single-crystal X-ray diffraction study of 1Y revealed a 3D structure based on a network of seven-coordinated Cd II centers linked by three kinds of bridging ligands. As shown in Figure 1, the central Cd1 atom is located in a pentagonalbipyramidal coordination environment with N41 and N42 atoms of crystallographically independent 4,4'-bipy ligands acting as the two pyramidal apexes. An important feature of 1Y is the simultaneous "capture" of isomeric ic and mc ligands that originate from the in situ pyrolysis of H 3 L. [4]

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Photochromism of a Methyl Viologen Bismuth(III) Chloride: Structural Variation Before and After UV Irradiation

Cited by 57 publications

References 45 publications

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Preparation, Characterization of Styrene-Functional Hyperbranched Viologen, and Its Application in Optical Writing and Electrical Erasing Device

Photochromism of a 3D Cd^II Complex with Two Captured Ligand Isomers Generated In Situ from the Same Precursor

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Photochromism of a Methyl Viologen Bismuth(III) Chloride: Structural Variation Before and After UV Irradiation

Cited by 57 publications

References 45 publications

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C12H14Cl4N2Zn

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C12H14Cl4N2Zn

Preparation, Characterization of Styrene-Functional Hyperbranched Viologen, and Its Application in Optical Writing and Electrical Erasing Device

Photochromism of a 3D CdII Complex with Two Captured Ligand Isomers Generated In Situ from the Same Precursor

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Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Crystal Structure of 1,1′-dimethyl-[4,4′-bipyridine]-1,1′-diium tetrachloridozincate(II), C₁₂H₁₄Cl₄N₂Zn

Photochromism of a 3D Cd^II Complex with Two Captured Ligand Isomers Generated In Situ from the Same Precursor