0000000001305401

AUTHOR

Ligita Rutkovska

showing 6 related works from this author

Three anhydrous forms and a dihydrate form of quifenadine hydrochloride: a structural study of the thermodynamic stability and dehydration mechanism

2015

Crystal structures of dihydrate (DH) and three anhydrous forms (A, B and C) of quifenadine (1-azabicyclo[2.2.2]oct-8-yl-diphenyl-methanol) hydrochloride are presented, and crystal structure information is used to explain and rationalize the relative stability of polymorphs and observed phase transformations. The dehydration mechanism of the hydrate is provided by interpreting the results obtained in studies of crystal structures, dehydration kinetics and thermal analysis. Structural analysis is used to explain the observed relative stability of the anhydrous phases and the hydrate. The crystal structures have been determined either from single crystal (form DH) or from powder diffraction da…

CrystallographyChemistryPhase (matter)AnhydrousGeneral Materials ScienceChemical stabilityGeneral ChemistryCrystal structureCondensed Matter PhysicsThermal analysisHydrateSingle crystalPowder diffractionCrystEngComm
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Fenkarola kristālisko formu pētījumi

2014

Fenkarola kristālisko formu pētījumi. Rutkovska L., darba vadītājs Maģ. ķīm. Kons A. Bakalaura darbs, 45 lappuses, 21 attēls, 6 tabulas, 54 literatūras avoti, 3 pielikumi. Latviešu valodā. Iegūtas četras fenkarola kristāliskās formas. Apskatītas iespējamās formu pārvērtības un stabilitāte, kā pamatmetodes izmantojot pulvera rentgendifraktometriju un termogravimetriju/diferenciāli termisko analīzi. Noteiktas un raksturotas struktūras no pulvera rentgendifrakcijas datiem. Veikti fenkarola dihidrāta dehidratācijas kinētikas pētījumi izotermiskā un neizotermiskā režīmā. CIETFĀŽU KINĒTIKA, FENKAROLS, POLIMORFISMS, PSEIDOPOLIMORFISMS, PULVERA RENTGENDIFRAKTOMETRIJA, STRUKTŪRAS NOTEIKŠANA, TERMISK…

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CCDC 1051734: Experimental Crystal Structure Determination

2015

Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H

3-(hydroxy(diphenyl)methyl)-1-azoniabicyclo[2.2.2]octane chlorideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1051733: Experimental Crystal Structure Determination

2015

Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H

3-(hydroxy(diphenyl)methyl)-1-azoniabicyclo[2.2.2]octane chlorideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1051731: Experimental Crystal Structure Determination

2015

Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H

3-(hydroxy(diphenyl)methyl)-1-azoniabicyclo[2.2.2]octane chloride dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1051732: Experimental Crystal Structure Determination

2015

Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H

3-(hydroxy(diphenyl)methyl)-1-azoniabicyclo[2.2.2]octane chlorideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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