scholarly journals Application of Boroisoquinoline Fluorophores as Chemodosimeters for Fluoride Ion and Pd (0)

Materials ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 199 ◽  
Author(s):  
Dénes Sóvári ◽  
György Miklós Keserű ◽  
Péter Ábrányi-Balogh
Keyword(s):  
Organic Chemistry ◽  
Mechanism Of Action ◽  
Photophysical Properties ◽  
Fluoride Anion ◽  
Fluoride Ion ◽  
New Family

The development of novel chemodosimeters is currently a prosperous field in organic chemistry. Recently, a new family of fluorophores, the boroisoquinolines, were introduced with satisfying photophysical properties. As a continuation of this research, the application of boroisoquinolines is presented as chemodosimeters for fluoride anion and Pd (0). The new tools showed good selectivity for the detection of the analytes. Moreover, the mechanism of action was investigated experimentally.

Highly selective fluorescence sensors for the fluoride anion based on carboxylate-bridged diiron complexes

2016 ◽  
Vol 45 (16) ◽  
pp. 6839-6846 ◽  
Author(s):  
Yuhan Zhou ◽  
Xiaoliang Dong ◽  
Yixin Zhang ◽  
Peng Tong ◽  
Jingping Qu
Keyword(s):  
Selective Recognition ◽  
Fluoride Anion ◽  
Fluoride Ion ◽  
Fluorescence Sensors

The diiron–sulfur clusters bearing urea and anthracene units showed rapid and selective recognition for the fluoride ion.

Columnar discotic Pt(ii) metallomesogens as luminescence multifunctional materials with chemo and thermosensor abilities

2014 ◽  
Vol 2 (43) ◽  
pp. 9167-9181 ◽  
Author(s):  
Cristián Cuerva ◽  
José A. Campo ◽  
Paloma Ovejero ◽  
M. Rosario Torres ◽  
Elisabete Oliveira ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Multifunctional Materials ◽  
New Family

A new family of Pt(ii) luminescent metallomesogens based on dicatenar pyridylpyrazolate ligands [Pt(pzR(n,n)py)2] (R(n,n) = C6H3(OCnH2n+1)2,n= 4–18) has been prepared, and their mesomorphic and photophysical properties are described.

Ground- and excited-state interactions of 2,7,12,17-tetraphenylporphycene with model target biomolecules for type-I photodynamic therapy

2009 ◽  
Vol 13 (01) ◽  
pp. 99-106 ◽  
Author(s):  
Noemí Rubio ◽  
Víctor Martínez-Junza ◽  
Jordi Estruga ◽  
José I. Borrell ◽  
Margarita Mora ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photodynamic Therapy ◽  
Excited State ◽  
Singlet Oxygen ◽  
Cell Lines ◽  
Mechanism Of Action ◽  
Photophysical Properties ◽  
Type I ◽  
Type Ii ◽  
Hydrophobic Compound

Biosubstrate-sensitizer binding is one of the factors that enhances the type-I mechanism over the type-II in the whole photodynamic process. 2,7,12,17-Tetraphenylporphycene (TPPo), a second-generation photosensitizer, is a hydrophobic compound with good photophysical properties for photodynamic therapy applications that has proved its ability for the photoinactivation of different cell lines. Nevertheless, little is known about its mechanism of action. This paper focuses on the study of the interaction/binding of TPPo with different model biomolecules that may favor the type-I mechanism in the overall photodynamic process, including nucleosides, proteins, and phospholipids. Compared with more hydrophilic photosensitizers, it is concluded that TPPo is more likely to undergo type-II (singlet oxygen) than type-I (electron transfer) photodynamic processes in biological environments.

Synthesis, photophysical properties and cation-binding studies of bipyridine-functionalized gold(i) complexes

2018 ◽  
Vol 5 (1) ◽  
pp. 160-171 ◽  
Author(s):  
Igor V. Solovyev ◽  
Aleksandar Kondinski ◽  
Kirill Yu. Monakhov ◽  
Igor O. Koshevoy ◽  
Elena V. Grachova
Keyword(s):  
Photophysical Properties ◽  
Cation Binding ◽  
Binding Studies ◽  
New Family ◽  
Bright Luminescence

A new family of Au(i) complexes equipped with bipyridine function demonstrate bright luminescence response to M(ii) cations in solution.

scholarly journals Synthesis and Spectral Study of a New Family of 2,5-Diaryltriazoles Having Restricted Rotation of the 5-Aryl Substituent

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 480 ◽  
Author(s):  
Biligma Tsyrenova ◽  
Valentine Nenajdenko
Keyword(s):  
Heterocyclic System ◽  
Photophysical Properties ◽  
System Structure ◽  
Quantum Yields ◽  
Aryl Substituent ◽  
Light Emitting ◽  
New Family ◽  
Aryl Fragment ◽  
New Type ◽  
Condensed Heterocycles

Efficient synthesis of 2,5-diaryl substituted 4-azido-1,2,3-triazoles by the reaction of sodium azide with dichlorosubstituted diazadienes was demonstrated. The optical properties of the prepared azidotriazoles were studied to reveal a luminescence maximum in the 360–420 nm region. To improve the luminescence quantum yields a family of 4-azido-1,2,3-triazoles bearing ortho-propargyloxy substituents in the 5 position was prepared. Subsequent intramolecular thermal cyclization permits to construct additional triazole fragment and obtain unique benzoxazocine derivatives condensed with two triazole rings. This new family of condensed heterocycles has a flattened heterocyclic system structure to provide more conjugation of the 5-aryl fragment with the triazole core. As a result, a new type of UV/“blue light-emitting” materials with better photophysical properties was obtained.

Hydrolysis of trialkoxysilanes catalysed by the fluoride anion. Nucleophilic vs. basic catalysis

2019 ◽  
Vol 43 (38) ◽  
pp. 15222-15232
Author(s):  
Marek Cypryk ◽  
Bartłomiej Gostyński ◽  
Mateusz Pokora
Keyword(s):  
Dft Study ◽  
Fluoride Anion ◽  
Fluoride Ion ◽  
Nucleophilic Catalysis ◽  
Basic Catalysis ◽  
Hydrolysis Of

A DFT study showed competition between basic and nucleophilic catalysis of alkoxysilane hydrolysis by the fluoride ion.

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