Výsledky vyhledávání - "Andrzej, Zimniak"

The potential for the indirect crystal structure verification of methyl glycosides based on acetates’ parent structures: GIPAW and solid-state NMR approaches

Autor: Andrzej Zimniak, Tomasz Gubica, Kinga Dąbrowska, Łukasz Szeleszczuk, Michał K. Cyrański, Marianna Kańska, Dariusz Maciej Pisklak

Publikováno v: Chemical Physics Letters. 686:7-11

A convenient method for the indirect crystal structure verification of methyl glycosides was demonstrated. Single-crystal X-ray diffraction structures for methyl glycoside acetates were deacetylated and subsequently subjected to DFT calculations unde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd8978122cf818030008904d73daf208
https://doi.org/10.1016/j.cplett.2017.08.028

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SYNTHESIS, STRUCTURE AND PHARMACOLOGICAL EVALUATION OF 1-(1H-PYRROL-1-YLMETHYL)-4-AZATRICYCLO[5.2.1.0(2,6)] DEC-8-ENE-3,5-DIONE

Autor: Magdalena, Pakosińska-Parys, Andrzej, Zimniak, Anna, Chodkowska, Ewa, Jagiełło-Wójtowicz, Marek, Głowala, Marta, Struga

Publikováno v: Acta poloniae pharmaceutica. 73(4)

A set of arylpiperazine derivatives with imide fragments, 1-(1H-pyrrol-1-ylmethyl)-10-oxa-4-azatricyclo[5.2.1.0(2,6)-]dec-8-ene-3,5-dione connected by propyl and butyl linkers, were synthesized and tested for the potential anxiolytic and antidepressa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::40e55e18e4a8f2db9df19c3d1242719b
https://pubmed.ncbi.nlm.nih.gov/29648718

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Influence of acetylation on anomeric effect in methyl glycosides

Autor: Andrzej Zimniak, Kinga Dąbrowska, Marianna Kańska, Michał K. Cyrański, Tomasz Gubica, Łukasz Szeleszczuk

In the following research acetylation as an unexplored factor in the anomeric effect in carbohydrate chemistry has been examined. Crystallographic data for methyl glycosides and their acetates have been compared and discussed. Some of the methyl glyc

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Synthesis and antibacterial activity of bis-[2-hydroxy-3-(1,7,8,9,10-pentamethyl-3,5-dioxo-4-aza-tricyclo[5.2.1.02,6]dec-8-en-4-yloxy)-propyl]-dimethyl-ammonium chloride

Autor: Anna E. Koziol, Jerzy Kossakowski, Andrzej Zimniak, Marta Struga, Joanna Stefańska

Publikováno v: European Journal of Medicinal Chemistry. 43:1309-1314

A new quaternary ammonium compound, bis-[2-hydroxy-3-(1,7,8,9,10-pentamethyl-3,5-dioxo-4-aza-tricyclo[5.2.1.0(2,6)]dec-8-en-4-yloxy)-propyl]-dimethyl-ammonium chloride (4), was synthesized. The compound was investigated for antibacterial activity, in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32f42df4b12e5462b392d617740e95bf
https://doi.org/10.1016/j.ejmech.2007.08.014

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Electron ionization-induced fragmentation of R2N2Fe2(CO)6complexes with distinct geometries of the tetrahedral core: investigation of µ-1,2-(1,2-diaza-3-methylcyclopentane)diylbis(tricarbonyliron) and bis(µ2-acetophenoniminato)bis(tricarbonyliron)

Autor: Andrzej Zimniak

Publikováno v: Journal of Mass Spectrometry. 37:1145-1151

Two binuclear bis(tricarbonyliron) title complexes with N2Fe2 tetrahedral cores, 1 and 2, respectively, which show different molecular folding resulting from the appearance (in 1), and absence (in 2) of the NN σ-bond, were compared in terms of mass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e27e3deb2ab6ee33906d642dd5aa78ed
https://doi.org/10.1002/jms.377

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Structural studies of the C4H8N2Fe2(CO)6 complex obtained by cyclization of acetaldazine in the presence of dodecacarbonyl-triiron: investigations by X-ray diffraction and NMR of μ-1,2-(1,2-diaza-3-methylcyclopentane)diyl-bis(tricarbonyliron)

Autor: Andrzej Zimniak

Publikováno v: Journal of Organometallic Chemistry. 645:274-280

The molecular structure of a complex obtained from 3,4-diazahexa-2,4-diene in reaction with dodecacarbonyl-triiron proceeding via cyclization of the azine was determined by X-ray diffraction. On the basis of X-ray conformational data, the complete as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::df93f118740d93ce4c5c8fb2802fd04f
https://doi.org/10.1016/s0022-328x(01)01369-9

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Molecular properties of a bis(ketoiminato)-bis(tricarbonyliron) complex obtained by symmetric cleavage from acetophenone azine. Idealized symmetry in anti and syn isomers studied by X-ray diffraction, NMR and density functional theory

Autor: Andrzej Zimniak, Grzegorz Bakalarski

Publikováno v: Journal of Molecular Structure. 597:211-221

Distinct anti and syn isomers of the bis(μ 2 -acetophenoniminato)-bis(tricarbonyliron) obtained from iron dodecacarbonyl and 1,4-dimethyl-1,4-diphenyl-2,3-diazabuta-1,3-diene by symmetric cleavage of the azine have been compared in terms of molecula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::652fa8a78bbf19da9bd3daf1d39cf20c
https://doi.org/10.1016/s0022-2860(01)00604-4

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Molecular properties of a bis(1,1-diphenylallenylidene)-octacarbonyltriiron complex obtained by symmetric cleavage from 1,1,6,6-tetraphenylhexapentaene. Idealized symmetry studied in synperiplanar and synclinal conformers by X-ray diffraction, NMR and density functional theory

Autor: Grzegorz Bakalarski, Andrzej Zimniak

Publikováno v: Journal of Organometallic Chemistry. 634:198-208

Molecular deviations from symmetry of bis(1,1-diphenylallenylidene)-octacarbonyltriiron are compared in two distinct synperiplanar and synclinal conformers expressed as two polymorphic forms by the analysis of close contacts in crystals, quantum chem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfa08491b3ee70da8fceb428c3984ad1
https://doi.org/10.1016/s0022-328x(01)01178-0

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Investigation of the reaction product of 1,4,7,10-tetraphenyl-cyclododecahexa-1,2,3,7,8,9-ene with dodecacarbonyl-triiron by X-ray diffraction and MS: comparative structural study of the hexacarbonyl-μ2-(1η2-1,2-ene-2η3-3,4,5-allyl-1σ1-5)diiron(FeFe) system

Autor: Andrzej Zimniak, Marian Olejnik, Janusz Zachara

Publikováno v: Journal of Organometallic Chemistry. 589:239-246

Reaction of dodecacarbonyl-triiron with the 12-membered bis(butatriene) results in phenyl ring metallation and an intramolecular crosslinking of the macrocycle with the formation of a system of three condensed rings. The central core of the complex i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::490e694c2a4b7bf690d1632550b0a996
https://doi.org/10.1016/s0022-328x(99)00421-0

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