A5047052149- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Metal complexes synthesis and properties
- Crystal structures of chemical compounds
- Molecular spectroscopy and chirality
- Magnetism in coordination complexes
- Sesquiterpenes and Asteraceae Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Natural product bioactivities and synthesis
- Chemical Synthesis and Analysis
- Analytical Chemistry and Chromatography
- Supramolecular Chemistry and Complexes
- Plant Toxicity and Pharmacological Properties
- Synthesis and Characterization of Heterocyclic Compounds
- Biological Activity of Diterpenoids and Biflavonoids
- Coordination Chemistry and Organometallics
- Synthesis and biological activity
- Axial and Atropisomeric Chirality Synthesis
- Phytochemistry and Biological Activities
- Lanthanide and Transition Metal Complexes
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Ferrocene Chemistry and Applications
- Molecular Sensors and Ion Detection
- Inorganic and Organometallic Chemistry
Adam Mickiewicz University in Poznań
2016-2025
Faculty (United Kingdom)
2016-2020
University of Kragujevac
2012
Osaka University
2008
Jagiellonian University
2006
BioInfoBank Institute
2005
Chalmers University of Technology
1998
North East Institute of Science and Technology
1996
University of Patras
1992-1993
Institute of Organic Chemistry
1992
An exceptionally large size cuboctahedral imine cage is obtained from small organic molecules in a thermodynamically driven [8+12] cyclocondensation. This demonstration of the role entropy symmetry as driving force reversible reactions.
Abstract A series of fifteen indole derivatives substituted at the C-3 position were synthesized and characterized. The antioxidant activity all was investigated by three in vitro assays, derivative with pyrrolidinedithiocarbamate moiety most active as a radical scavenger Fe 3+ -Fe 2+ reducer. It can be stated that possible hydrogen electron transfer mechanism is suggested for quenching free radical. Moreover, indolyl stabilization presence unsubstituted nitrogen atom are mandatory observed...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Characterization of Bis(.mu.-oxo)dimanganese(III,III), -(III,IV), -(IV,IV) Complexes with Ligands Related to N,N'-Bis(2-pyridylmethyl)-1,2-ethanediamine (Bispicen)Jorgen Glerup, Patricia A. Goodson, Alan Hazell, Rita Derek J. Hodgson, Christine McKenzie, Kirsten Michelsen, Urszula Rychlewska, Hans ToftlundCite this: Inorg. Chem. 1994, 33, 18, 4105–4111Publication Date (Print):August 1, 1994Publication History Published online1 May...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPentagonal-bipyramidal complexes. Synthesis and crystal structures of diaqua[2,6-diacetylpyridine bis(semicarbazone)]chromium(III) hydroxide dinitrate hydrate dichloro[2,6-diacetylpyridine bis(semicarbazone)]iron(III) chloride dihydrateGus J. Palenik, Dennis W. Wester, Urszula. Rychlewska, R. C. PalenikCite this: Inorg. Chem. 1976, 15, 8, 1814–1819Publication Date (Print):August 1, 1976Publication History Published online1 May 2002Published inissue...
In the search for new bioactive compounds, a methodology based on combining two molecules with biological properties into hybrid molecule was used to design and synthesize of series ten indole derivatives bearing imidazole, benzothiazole-2-thione, or benzoxazole-2-thione moieties at C-3 position. The compounds were spectroscopically characterized tested their antioxidant, antibacterial, fungicidal activities. crystal structures determined five them. Comparison closely related containing...
A chloride salt of the tetrameric gold(III) complex with L-valyl-L-histidine dipeptide (L-Val-L-His), [Au(L-Val-L-His)]4Cl2·14.5H2O, was obtained from mononuclear [Au(L-Val-L-His)Cl]Cl·2H2O species at pH 7.00 in aqueous solution room temperature. The characterized by 1H NMR and IR spectroscopic techniques, while its structure determined single-crystal X-ray diffraction analysis. In title compound, each ion is coordinated three nitrogen atoms, as corresponding (amine NA, deprotonated amide...
Trianglamines, macrocyclic heteraphanes, were readily synthesised through a [3+3] cyclocondensation of (R,R)-1,2-diaminocyclohexane with terephthalaldehyde, followed by NaBH4 reduction and N-alkylation. The ring shows remarkable ability to change its conformation, as consequence rotation about the C-N bonds or nitrogen inversion due protonation N-alkylation, revealed circular dichroism spectra, computational modelling X-ray diffraction analysis. flexible natures trianglamine macrocycles...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange through hydrogen bonds: structural and magnetic characterization of cis-hydroxoaquachromium(III) complexes tetradentate monodentate ligandsP. A. Goodson, J. Glerup, D. Hodgson, K. Michelsen, U. RychlewskaCite this: Inorg. Chem. 1994, 33, 2, 359–366Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published inissue 1 January...
The electronically excited states of the phthalimide chromophore have been studied by means linear dichroism (LD) samples partially oriented in poly(vinyl alcohol) films, magnetic circular (MCD), and (CD) spectroscopy. On basis LD measurements, low-energy tail (340−320 nm) first absorption band is assigned to an out-of-plane polarized n→π* transition (I). At higher energy, electronic spectrum resolved into contributions from five π→π* transitions: II (300 nm, long-axis polarized), III (275...
The ability of the indole-imidazole hybrid ligands to coordinate with Zn(II) ion and resulting structures this new class coordination compounds were analyzed in order determine their structural properties biological functionalities. For purpose, six novel complexes, [Zn(InIm)2Cl2] (1), [Zn(InMeIm)2Cl2] (2), [Zn(IniPrIm)2Cl2] (3), [Zn(InEtMeIm)2Cl2] (4), [Zn(InPhIm)2Cl2] (5) [Zn2(InBzIm)2Cl2] (6) (where InIm is 3-((1H-imidazol-1-yl)methyl)-1H-indole), synthesized by reactions ZnCl2...
The present study deals with the crystal structures of four organic salts, namely, trimethoprim benzene sulfonate monohydrate 1, sulfanilate 2, p-toluene 3 and 3-carboxy-4-hydroxybenzene dihydrate 4. Trimethoprim (TMP) is protonated at one ring nitrogens pyrimidine ring. Generally, in TMP carboxylate complexes, hydrogen-bonded to group forming a cyclic fork-like bimolecular motif. In 1–3, plays role anion. compounds 1 there no pairing rings because sites are blocked by water molecules...
Aliphatic dialdehydes of rigid structures having a cyclohexane, bicyclo[2.2.2]octane or [7]triangulane skeleton, have been condensed with enantiomerically pure trans-1,2-diaminocyclohexane to give [3+3] [2+2] macrocyclization products. Unlike acyclic aliphatic imines, these macrocyclic oligoimines show enhanced stabilities and their in the crystals could be determined by X-ray diffraction analyses. The dialdehyde showed remarkable diastereoselectivity condensation two enantiomers...
Gold(<sc>iii</sc>) complexes with<sc>l</sc>-Ala-<sc>l</sc>-His and<sc>l</sc>-Leu-<sc>l</sc>-His dipeptides inhibit angiogenesis.
[reaction: see text] Rhombimines, chiral macrocyclic tetraimines, are preferentially formed because of the structural bias in reaction aromatic ether-linked dialdehydes with enantiomerically pure trans-1,2-diaminocyclohexane.