Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Hanna Małuszyńska"'
Publikováno v:
Symmetry, Vol 15, Iss 6, p 1172 (2023)
1,4- and 1,2-additons of secondary phosphine oxides to (1R)-myrtenal and (1S)-myrtanal were evaluated as potential routes to P,C-stereogenic phosphine oxides bearing additional hydroxyl or aldehyde functions. 1,4-Additions of racemic secondary phosph
Externí odkaz:
https://doaj.org/article/1699175308fc42fdbb1d89426be670d4
Autor:
Elżbieta Łastawiecka, Adam Włodarczyk, Anna E. Kozioł, Hanna Małuszyńska, K. Michał Pietrusiewicz
Publikováno v:
Molecules, Vol 26, Iss 22, p 6873 (2021)
The resolution of racemic 1-phenylphosphin-2-en-4-one 1-oxide (2), was achieved through the fractional crystallization of its diastereomeric complexes with (4R,5R)-(−)-2,2-dimethyl -α,α,α′,α′-tetraphenyl-dioxolan-4,5-dimethanol (R,R-TADDOL)
Externí odkaz:
https://doaj.org/article/eb5dc90824cf4b1387c8507a7284a917
Autor:
K. Michał Pietrusiewicz, Anna E. Koziol, Hanna Małuszyńska, Elżbieta Łastawiecka, Adam Włodarczyk
Publikováno v:
Molecules
Volume 26
Issue 22
Molecules, Vol 26, Iss 6873, p 6873 (2021)
Volume 26
Issue 22
Molecules, Vol 26, Iss 6873, p 6873 (2021)
The resolution of racemic 1-phenylphosphin-2-en-4-one 1-oxide (2), was achieved through the fractional crystallization of its diastereomeric complexes with (4R,5R)-(−)-2,2-dimethyl -α,α,α′,α′-tetraphenyl-dioxolan-4,5-dimethanol (R,R-TADDOL)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::397ffa04c8e25cc3f87991ff338048d7
http://europepmc.org/articles/PMC8621017
http://europepmc.org/articles/PMC8621017
Autor:
Hanna Małuszyńska, Marek Stankevič, K. Michał Pietrusiewicz, Sylwia Sowa, Anna Szmigielska, Anna E. Koziol
Publikováno v:
The Journal of Organic Chemistry. 80:1672-1688
A direct stereoselective conversion of tertiary hydroxyalkylphosphine oxides to the corresponding tertiary hydroxyalkylphosphine-boranes involving facile reduction of the P═O bond by BH3 under mild conditions has been developed. The unprecedented f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9010ad585602c32c46b259f096f23e4
https://doi.org/10.1021/jo502623g
https://doi.org/10.1021/jo502623g
Autor:
Maria Gdaniec, Hanna Małuszyńska
Publikováno v:
Journal of Molecular Structure. 983:141-146
A redetermination of the crystal structure of bis(thiourea) thiazolium bromide (hereafter T2ThBr) at 250 K (HT) and 100 K (LT) points to different space group symmetries than the ones reported in [A. Pajzderska, J. Wąsicki, H. Maluszynska, P. Czarne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::087a6010594da21f8f6c9c0a6e0f8e35
https://doi.org/10.1016/j.molstruc.2010.08.043
https://doi.org/10.1016/j.molstruc.2010.08.043
Autor:
K. Michał Pietrusiewicz, Sylwia Sowa, Marek Stankevič, Anna Szmigielska, Anna E. Koziol, Hanna Małuszyńska
Publikováno v:
ChemInform. 46
The conversion of a variety of tertiary hydroxyalkylphosphine oxides to the corresponding phosphine boranes using BH3·THF or BH3·SMe2 as reagent is developed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b26ed04c031f28628f28417d6423819
https://doi.org/10.1002/chin.201526248
https://doi.org/10.1002/chin.201526248
Publikováno v:
Journal of Physics: Condensed Matter. 15:5663-5674
The crystal and molecular structure of pyridinium periodate [H5C5NH]+[IO 4]− (hereafter referred to as PyIO4) was re-determined by single-crystal neutron diffraction at 350, 300 and 100 K. The structures of the high-temperature paraelectric and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95585fef6acccbf1e43f04922ec5b255
https://doi.org/10.1088/0953-8984/15/33/301
https://doi.org/10.1088/0953-8984/15/33/301
Publikováno v:
Zeitschrift für Naturforschung A. 57:847-853
By X-ray diffraction it was found that at 293 K the crystals of rubidium tetraphenylborate are tetragonal, space group I42m, a = b = 11.212(2) Å, c = 8.098(2) Å , with 2 molecules of Rb+[C24H20B]- in the unit cell. The molecular reorientations as f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdd5b4930631a9aa162dbc54eeee9d50
https://doi.org/10.1515/zna-2002-1102
https://doi.org/10.1515/zna-2002-1102
Publikováno v:
The Journal of Chemical Physics. 117:5303-5310
The crystal and molecular structure of pyridinium fluorochromate has been determined at 293, 240, and 150 K by x-ray diffraction. All three phases are orthorhombic with the following sequence of space groups and solid–solid phase transitions disclo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb9956428c0a1e802ee3b1634a321685
https://doi.org/10.1063/1.1501477
https://doi.org/10.1063/1.1501477
Publikováno v:
Phase Transitions. 75:379-388
This paper illustrates the application of CW-EPR combined with the Computer Resolution Enhancement Method (CREM) to the investigation of the phase transitions and molecular dynamics of radicals in pyridinium perchlorate single crystals. The CREM meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0547b91f284a6ca9b436dc11681bf5e2
https://doi.org/10.1080/01411590290029845a
https://doi.org/10.1080/01411590290029845a