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Article
Erratum to: Photo- and Ionochromic Diarylethenes with Receptor Fragments in the Thiazole Bridge
Erratum
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Article
Erratum to: Rhodamine 6G-Based Molecular Ion-Active Switches of Optical and Fluorescent Properties
Erratum
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Article
Rhodamine 6G-Based Molecular Ion-Active Switches of Optical and Fluorescent Properties
A series of rhodamine 6G derivatives with o-hydroxyarylimine substituents have been synthesized. The obtained compounds in acetonitrile have been found capable of the H+-induced transformation of the spirolactam ...
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Article
Photo- and Ionochromic Diarylethenes with Receptor Fragments in the Thiazole Bridge
Diarylethenes containing coumarin and thiophene substituents in the thiazole bridge and quinoline receptor fragments have been synthesized. 2-Chloroquinoline diarylethenes have afforded colored cyclic hexadien...
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Article
Ion-Induced Chromo(fluoro)genic Rearrangements of Rhodamine Derivatives
A series of rhodamine B derivatives containing hydroxyimine receptor fragments was synthesized. The reaction of a 1-hydroxynaphthalene-2-carbaldehyde derivative in acetonitrile proceeds selectively with copper...
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Article
Spectral-Luminescent and Ionochromic Properties of Azomethine Imine-Coumarin Conjugates
Azomethine imine-coumarin mono- and bis-conjugates have been synthesized for the first time. The obtained compounds represent multifunctional chromogenic and fluorescent species capable of detecting fluoride, ...
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Article
Synthesis and Photochromic Properties of Bis-Spirocyclic Compounds Based on 1,3-Dihydroxy-6-oxo-6H-benzo[c]chromene-2,4-dicarbaldehyde
Nonsymmetric bis-spiropyran derivatives based on 1,3-dihydroxy-6-oxo-6H-benzo[c]chromene-2,4-dicarbaldehyde were synthesized. The obtained compounds with substituents R = H, Cl at positions 5,5′ of the indoline f...
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Article
Polyfunctional Ionochromic 1,3-Dihydroxy-6-oxo-6H-benzo[c]chromene-2,4-dicarbaldehyde Aroylhydrazones
Bisaroylhydrazones of a novel 1,3-dihydroxy-6-oxo-6H-benzo[c]chromene-2,4-dicarbaldehyde have been synthesized. The obtained compounds represent multifunctional chemosensors capable of detecting fluoride, cyanide...
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Article
Synthesis and structure of indoline spiropyrans based on benzo[f]coumarin
Indoline spiropyrans containing benzo[f]coumarin moiety annulated to the 2H-pyran cycle were synthesized. The obtained compounds exist in solutions as a tautomeric mixture of their spirocyclic and merocyanine for...
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Article
Synthesis and Luminescence and Ionochromic Properties of 9-Hydroxy-1-methyl-3-oxo-3H-benzo[f]chromene8-carbaldehyde Imines and Hydrazones
Formylation of 9-hydroxy-1-methyl-3H-benzo[f]chromen-3-one with hexamethylenetetramine in acetic acid afforded 9-hydroxy-1-methyl-3-oxo-3H-benzo[f]chromene-8-carbaldehyde which was converted to the corresponding ...
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Article
Selective Naked-Eye Fluorescein-Based Chemosensor for the Detection of Pd2+ Cations
Highly sensitive and selective chemosensor for the determination of palladium(II) cations based on diphenylphosphino derivative of N-aminofluorescein was synthesized. The Pd2+ ion detection is accompanied by a co...
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Article
Photochromic coumarin spiropyranes with switching of optical properties by lanthanide ions
Coumarin spiropyrans with terminal carbohydrazide substituents were synthesized. UV irradiation of their solutions was found to initiate rearrangement into a deeply colored merocyanine form. In the presence of...
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Article
Synthesis, Photo-, and Ionochromic Properties of Indolyl(thienyl)maleimides with Terpyridine Receptor
Indolyl(thienyl)maleimides with terpyridine receptor in the bridge part have been synthesized. Irradiation of their toluene solutions with light at λ = 436 nm has led to the formation of cyclic isomers. The re...
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Article
Anthracene-Containing Podands, Ion-Active Molecular Switches of Fluorescence Characteristics
2,2′-[Ethane-1,2-diylbis(oxy)]bis[N-(anthracen-9-ylmethyl)ethanamine] and its bisphenylthiourea and bisthiourea derivatives have been synthesized. The diamine, being a certain analog of an aza-crown ether with an...
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Article
Photo- and Ionochromic Spiroindoline-2,2′-pyrano[2,3-f]chromenecarbohydrazides—Chemosensors for Lanthanide Cations
Photochromic indoline spiropyrans with carbohydrazide substituents in the pyrano[2,3-f]chromene moiety of the molecule have been synthesized. These compounds exhibit inochromic properties and are chromogenic (“na...
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Article
о-Nitroarylidene imines, bifunctional fluorescent chemosensors for lanthanide cations and fluoride anions
Condensation of о-nitrobenzaldehydes with anthracen-9-ylmethanamine afforded dialkoxy-substituted azomethines which exhibited a chemosensor activity with respect to lanthanide cations and fluoride, cyanide, and a...
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Article
Photochromic fluorescent indol-3-yl-substituted maleimides
New hetarylethenes, 3-(indol-3-yl)-4-thienyl(but-1-en-1-yl)-substituted pyrrole-2,5-diones containing coumarin or fluorene substituents on the pyrrole nitrogen atom, were synthesized by reactions of furan-2,5-...
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Article
Photochromic benzo[g]indolyl fulgimide with modulated fluorescence
A new photochromic fulgimide, (E)-1-(anthracen-9-ylmethyl)-3-[1-(5-methoxy-2-methyl-1-phenyl-1H-benzo[g]indol-3-yl)ethylidene]-4-(propan-2-ylidene)pyrrolidine-2,5-dione, has been synthesized and found to exhibit ...
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Article
Synthesis and structure of 1-[(3-hydroxybenzo[b]thiophen-2-yl)methylidene]-3-oxo-5-phenyl-1-pyrazolidinium-2-ide
Potentially tautomeric azomethine imine, 1-[(3-hydroxybenzo[b]thiophen-2-yl)methylidene]-3-oxo-5-phenyl-1-pyrazolidinium-2-ide has been prepared. According to X-ray diffraction, 1H, 13C, and 15N NMR and electroni...
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Article
Fluorescent chemosensors for mercury(II) cations
The condensation of 4,5-dimethoxy-2-(morpholin-4-yl)aniline with anthracene-9-carbaldehyde gave N-(anthracen-9-ylmethyl)-4,5-dimethoxy-2-(morpholin-4-yl)aniline, a selective and efficient fluorescent chemosensor ...
