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Start Over Author "Danikiewicz, Witold" Journal chemistry - a european journal
8 results on '"Danikiewicz, Witold"'

1. APEX Strategy Represented by Diels–Alder Cycloadditions—New Opportunities for the Syntheses of Functionalised PAHs

Author

Kurpanik, Aneta, primary, Matussek, Marek, additional, Szafraniec‐Gorol, Grażyna, additional, Filapek, Michał, additional, Lodowski, Piotr, additional, Marcol‐Szumilas, Beata, additional, Ignasiak, Witold, additional, Małecki, Jan Grzegorz, additional, Machura, Barbara, additional, Małecka, Magdalena, additional, Danikiewicz, Witold, additional, Pawlus, Sebastian, additional, and Krompiec, Stanisław, additional

Published
2020
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2. Luminescent-Substituted Fluoranthenes-Synthesis, Structure, Electrochemistry, and Optical Properties

Author

Slodek, Aneta, primary, Maroń, Anna, additional, Pająk, Michał, additional, Matussek, Marek, additional, Grudzka-Flak, Iwona, additional, Małecki, Jan G., additional, Świtlicka, Anna, additional, Krompiec, Stanisław, additional, Danikiewicz, Witold, additional, Grela, Małgorzata, additional, Gryca, Izabela, additional, and Penkala, Mateusz, additional

Published
2018
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3. NCN-Coordinating Ligands based on Pyrene Structure with Potential Application in Organic Electronics

Author

Zych, Dawid, primary, Kurpanik, Aneta, additional, Slodek, Aneta, additional, Maroń, Anna, additional, Pająk, Michał, additional, Szafraniec-Gorol, Grażyna, additional, Matussek, Marek, additional, Krompiec, Stanisław, additional, Schab-Balcerzak, Ewa, additional, Kotowicz, Sonia, additional, Siwy, Mariola, additional, Smolarek, Karolina, additional, Maćkowski, Sebastian, additional, and Danikiewicz, Witold, additional

Published
2017
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7. Ruthenium–Amido Complexes: Synthesis, Structure, and Catalytic Activity in Olefin Metathesis

Author

Pietraszuk, Cezary, primary, Rogalski, Szymon, additional, Powała, Beata, additional, Miętkiewski, Miłosz, additional, Kubicki, Maciej, additional, Spólnik, Grzegorz, additional, Danikiewicz, Witold, additional, Woźniak, Krzysztof, additional, Pazio, Aleksandra, additional, Szadkowska, Anna, additional, Kozłowska, Anna, additional, and Grela, Karol, additional

Published
2012
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8. Competition between Nucleophilic Substitution of Halogen (SNAr) versus Substitution of Hydrogen (SNArH)-A Mass Spectrometry and Computational Study.

Author

Błaziak, Kacper, Mąkosza, Mieczysław, and Danikiewicz, Witold

Subjects
INTRAMOLECULAR catalysis, GAS phase reactions, NITROPHENYL compounds, CARBANIONS, ELECTROSPRAY ionization mass spectrometry
Abstract

The mechanism of intramolecular gas-phase reactions of N-(2-X-5-nitrophenyl)- N-methylacetamide carbanions (X=H, F, Cl) has been studied using negative ion electrospray mass spectrometry ((−)ESI-MS) technique and modelled computationally. It was proven that all three anions form cyclic σH adducts, which undergo elimination of water. In the case of X=F, formation of the σF adduct, leading to SNAr reaction, was a competing process. This is the first proof that also in the gas phase formation of σH adduct proceeds faster than σX adduct and only when X=F, rates of these two processes are comparable. The experimental results are in full agreement with quantum chemical calculations. [ABSTRACT FROM AUTHOR]

Published
2015
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