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Showing 1 to 10 of 10 entries
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Structures and phase transitions in a new ferroelectric -- pyridinium chlorochromate -- studied by X-ray diffraction, DSC and dielectric methods.

Acta crystallographica. Section B, Structural science

Małuszyńska H, Czarnecki P, Czarnecka A, Pająk Z.
PMID: 22436911
Acta Crystallogr B. 2012 Apr;68:128-36. doi: 10.1107/S0108768112005782. Epub 2012 Mar 20.

Pyridinium chlorochromate, [C(5)H(5)NH](+)[ClCrO(3)](-) (hereafter referred to as PyClCrO(3)), was studied by X-ray diffraction, differential scanning calorimetry (DSC) and dielectric methods. Studies reveal three reversible phase transitions at 346, 316 and 170 K with the following phase sequence: R ̅3m...

Resolution of P-Sterogenic 1-Phenylphosphin-2-en-4-one 1-Oxide into Two Enantiomers by (.

Molecules (Basel, Switzerland)

Łastawiecka E, Włodarczyk A, Kozioł AE, Małuszyńska H, Pietrusiewicz KM.
PMID: 34833965
Molecules. 2021 Nov 15;26(22). doi: 10.3390/molecules26226873.

The resolution of racemic 1-phenylphosphin-2-en-4-one 1-oxide (

Performance of Winter Wheat Cultivars Grown Organically and Conventionally with Focus on Fusarium Head Blight and .

Microorganisms

Góral T, Łukanowski A, Małuszyńska E, Stuper-Szablewska K, Buśko M, Perkowski J.
PMID: 31614527
Microorganisms. 2019 Oct 11;7(10). doi: 10.3390/microorganisms7100439.

Growing acreage and changing consumer preferences cause increasing interest in the cereal products originating from organic farming. Lack of results of objective test, however, does not allow drawing conclusions about the effects of cultivation in the organic system and...

Reduction of functionalized tertiary phosphine oxides with BH3.

The Journal of organic chemistry

Sowa S, Stankevič M, Szmigielska A, Małuszyńska H, Kozioł AE, Pietrusiewicz KM.
PMID: 25581110
J Org Chem. 2015 Feb 06;80(3):1672-88. doi: 10.1021/jo502623g. Epub 2015 Jan 22.

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 facility of reduction of the strong P═O bond by...

Ferroelectric ordering in imidazolium perchlorate.

The Journal of chemical physics

Pajak Z, Czarnecki P, Szafrańska B, Małuszyńska H, Fojud Z.
PMID: 16626209
J Chem Phys. 2006 Apr 14;124(14):144502. doi: 10.1063/1.2185098.

Imidazolium perchlorate has been synthesized and studied over a wide range of temperatures by differential scanning calorimetry, x-ray diffraction, proton magnetic resonance, optical observation, and dielectric spectroscopy. Polymorphic solid-solid phase transitions have been disclosed at 487, 373, and 247...

Structures and phase transitions in a new ferroelectric -- pyridinium chlorochromate -- studied by X-ray diffraction, DSC and dielectric methods.

Acta crystallographica. Section B, Structural science

Małuszyńska H, Czarnecki P, Czarnecka A, Pająk Z.
PMID: 22436911
Acta Crystallogr B. 2012 Apr;68:128-36. doi: 10.1107/S0108768112005782. Epub 2012 Mar 20.

Pyridinium chlorochromate, [C(5)H(5)NH](+)[ClCrO(3)](-) (hereafter referred to as PyClCrO(3)), was studied by X-ray diffraction, differential scanning calorimetry (DSC) and dielectric methods. Studies reveal three reversible phase transitions at 346, 316 and 170 K with the following phase sequence: R ̅3m...

Structural and dynamical aspects of the phase transition in the new thiourea thiazolium bromide inclusion compound.

The Journal of chemical physics

Pajzderska A, Wasicki J, Małuszyńska H, Czarnecki P, Toupet L, Collet E.
PMID: 19044918
J Chem Phys. 2008 Sep 14;129(10):104501. doi: 10.1063/1.2972141.

A new thiourea thiazolium bromide inclusion compound is presented here. Detailed investigations of its phase transition were performed by differential scanning calorimetry, x-ray diffraction, and dielectric and nuclear magnetic resonance spectroscopy methods, completed by calculation of the steric hindrances...

The neutron diffraction study, calorimetry and spontaneous polarization of pyridinium perrhenate at 350, 300 and 100 K.

Journal of physics. Condensed matter : an Institute of Physics journal

Małuszyńska H, Cousson A, Czarnecki P.
PMID: 21393770
J Phys Condens Matter. 2010 Jun 16;22(23):235901. doi: 10.1088/0953-8984/22/23/235901. Epub 2010 May 21.

The crystal and molecular structure of pyridinium perrhenate [H(5)C(5)NH](+) [ReO(4)](-) (hereafter referred to as PyReO(4)) was determined by single-crystal neutron diffraction at 350, 300 and 100 K. The neutron study confirmed the x-ray diffraction results in all three phases....

Redetermination of the structure and dielectric properties of bis(thiourea) pyridinium iodide--a new ferroelectric inclusion compound.

Acta crystallographica. Section B, Structural science

Małuszyńska H, Czarnecki P, Fojud Z, Wasicki J.
PMID: 18799844
Acta Crystallogr B. 2008 Oct;64:567-72. doi: 10.1107/S0108768108018223. Epub 2008 Sep 06.

The crystal structure of bis(thiourea) pyridinium iodide (T(2)PyI) was previously determined at 295 and 110 K [Prout, Heyes, Dobson, McDaid, Maris, Mueller & Seaman (2000). Chem. Mater. 12, 3561-3569] and the two phases were described in the space groups...

Computational Analysis of Alternative Photosynthetic Electron Flows Linked With Oxidative Stress.

Frontiers in plant science

Saadat NP, Nies T, van Aalst M, Hank B, Demirtas B, Ebenhöh O, Matuszyńska A.
PMID: 34745183
Front Plant Sci. 2021 Oct 22;12:750580. doi: 10.3389/fpls.2021.750580. eCollection 2021.

During photosynthesis, organisms respond to their energy demand and ensure the supply of energy and redox equivalents that sustain metabolism. Hence, the photosynthetic apparatus can, and in fact should, be treated as an integrated supply-demand system. Any imbalance in...

Showing 1 to 10 of 10 entries