Peter Magdolen

Comenius University Bratislava

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Pavol Zahradnı́k

Comenius University Bratislava

Andrea Fülöpová

Comenius University Bratislava

Marek Cigáň

Comenius University Bratislava

Ivica Sigmundová

Comenius University Bratislava

P. Foltínová

Comenius University Bratislava

ŠT

Štefan Tomá

Comenius University Bratislava

Mária Mečiarová

Comenius University Bratislava

AČ

Alexandra Čibová

Comenius University Bratislava

Veronika Novakova

University of Hradec Králové

D. Chorvát

Slovak Centre of Scientific and Technical Information

Cooperative Institutions

Bellingham Technical College

Comenius University Bratislava

Institute of Chemistry of the Slovak Academy of Sciences

Slovak Academy of Sciences

Institute of Inorganic Chemistry of the Slovak Academy of Sciences

International Laser Center

Slovak University of Technology in Bratislava

Centre National de la Recherche Scientifique

Slovak Centre of Scientific and Technical Information

National Taiwan University

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CCDC 1018717: Experimental Crystal Structure Determination

The Cambridge Structural Database (2014)

Alexandra Čibová Peter Magdolen Andrea Fülöpová Jozef Kožı́šek Marek Cigáň

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cc1361v6

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Citations (0)

Thiazolo[4,5-d]thiazole—a new domain for potential optoelectronic application

Tetrahedron Letters (2010)

Peter Zahradník Peter Magdolen Pavol Zahradnı́k

Thiazole

Moiety

Butane

10.1016/j.tetlet.2010.08.110

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Citations (15)

Unsymmetrical benzothiazole-based dithienylethene photoswitches

Physical Chemistry Chemical Physics (2022)

Michelangelo Bovoloni Juraj Filo Ivica Sigmundová Peter Magdolen Šimon Budzák

Herein, we investigate the structure-property relationships in a new series of benzothiazole based unsymmetrical hexafluorocyclopentene dithienylethenes (DTEs) and compare the results with the known facts for symmetric diarylethenes (DAEs). We reveal high photocyclization efficiency resulting from a significant shift of ground state equilibrium to the antiparallel conformation and a barrierless excited state pathway to conical intersection, which remains unperturbed even in polar solvents for most of the prepared DTEs. Furthermore, we uncover that the rate of back thermal cycloreversion correlates clearly more with the central C-C bond-length in the transition state than with the central C-C bond-length in the ground state of the cyclic form. Finally, our detailed vibrational spectral analysis of studied DTEs points out significant changes in Raman and infrared spectra during photoswitching cycles which pave the way for a non-destructive readout of stored information.

Conical intersection

Benzothiazole

Antiparallel (mathematics)

Thermal equilibrium

10.1039/d2cp02325c

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Evidence for the involvement of a 66 kDa membrane protein in the synthesis of sterolglucoside in Saccharomyces cerevisiae.

Acta Biochimica Polonica (1995)

U Lenart Jana Haplová Peter Magdolen Vladimı́r Farkaš Grażyna Palamarczyk

The membrane-bound sterolglucoside synthase from the yeast Saccharomyces cerevisiae has been solubilized by nonionic detergent, Nonidet P-40, Triton X-100, and partially purified by DEAE-cellulose column chromatography and ammonium sulfate fractionation. SDS/PAGE of the purified fraction revealed the presence of two protein bands of molecular mass 66 kDa and 54 kDa. In an attempt to identify further the polypeptide chain of sterolglucoside synthase, the partially purified enzyme was treated with [di-125I]-5-[3-(p-azidosalicylamide)]allyl-UDPglucose, a photoactive analogue of UDP glucose, which is a substrate for this enzyme. Upon photolysis the 125I-labeled probe was shown to link covalently to the 66 kDa protein. The photoinsertion was competed out by the presence of unlabeled UDPglucose thus suggesting that this protein contains substrate binding site for UDPglucose. Since photoinsertion of the probe to protein of 66 kDa correlates with the molecular mass of the protein visualized upon enzyme purification we postulate that the 66 kDa protein is involved in sterolglucoside synthesis in yeast.

Molecular mass

Chaps

10.18388/abp.1995_4657

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Citations (4)

Synthesis and Antimicrobial Activity of New 2-Phenylethynylbenzothiazoles and Related Salts

Arzneimittelforschung (2011)

Peter Magdolen Pavol Zahradnı́k Pavlína Foltínov

New 2-phenylethynylbenzothiazoles were synthesized by coupling reaction between 2-iodoben-zothiazole and substituted phenylacetylenes under palladium catalysis. The modified Wittig reaction was used to prepare the substituted phenylacetylenes from corresponding benzaldehydes. 2-Phenylethynylbenzothiazoles were next quarternized with trimethyloxonium tetra-fluoroborate to 3-methylbenzothiazolium salts. Antimicrobial in vitro activities were determined for all new compounds.

Wittig reaction

Tetra

Coupling reaction

10.1055/s-0031-1300327

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Citations (9)

Synthesis and study of new antimicrobial benzothiazoles substituted on heterocyclic ring

ARKIVOC (2008)

Ivica Sigmundová Pavol Zahradnı́k Peter Magdolen Helena Bujdáková

New 2-styryl benzothiazolium salts substituted on the heterocyclic ring have been synthesised by the condensation of 3-alkyl-2-methylbenzothiazolium halides with 4-substituted benzaldehydes.The intramolecular charge transfer from the electron-donor substituent to the benzothiazolium ring is a typical feature of the prepared compounds.This type of benzothiazolium derivatives can be used as pharmaceutical substances as well as compounds with nonlinear optical response.Antimicrobial in vitro activity was determined and the influence of substituents has been evaluated.The substituents on the heterocyclic ring in positions 5 and 6 do not increase the biological activity significantly.

10.3998/ark.5550190.0009.815

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Citations (24)

Phthalocyanine-triphenylamine dyads: Synthesis, electrochemical, spectral and DFT study

Dyes and Pigments (2017)

Mária Michálková Nečedová Andrea Fülöpová Peter Magdolen Veronika Novakova Pavol Zahradnı́k

Triphenylamine

Quantum yield

Moiety

Acceptor

10.1016/j.dyepig.2017.02.025

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Citations (7)

3‐Aminophenothiazine Synthesis.

ChemInform (2003)

Mária Mečiarová Štefan Tomá Peter Magdolen

Abstract For Abstract see ChemInform Abstract in Full Text.

10.1002/chin.200350167

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ChemInform Abstract: Synthesis, Antimicrobial Testing and QSAR Study of New 2‐Phenylethenylbenzothiazolium Salts Substituted by Cyclic Amines.

ChemInform (2001)

Peter Magdolen Pavol Zahradnı́k P. Foltínová

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

10.1002/chin.200108153

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Citations (2)

On the 3-Aminophenothiazine Synthesis

Synthetic Communications (2003)

Mária Mečiarová Štefan Tomá Peter Magdolen

Abstract Investigation of the key step of 3-aminophenothiazine (5) synthesis, that is thiation of N-(4-phenylaminophenyl)-phthalimid (3) was carried out. The best results were achieved using microwave irradiation, when 55% of the pure thiation product 3-phalimidophenothiazine (4) were isolated in 10–20 min reaction time.

10.1081/scc-120022480

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Citations (5)