A5027369944- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Metal complexes synthesis and properties
- Supramolecular Chemistry and Complexes
- Porphyrin and Phthalocyanine Chemistry
- Molecular Sensors and Ion Detection
- Radioactive element chemistry and processing
- Molecular spectroscopy and chirality
- Metal-Catalyzed Oxygenation Mechanisms
- Chemical Synthesis and Analysis
- Growth Hormone and Insulin-like Growth Factors
- Photosynthetic Processes and Mechanisms
- RNA Interference and Gene Delivery
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced NMR Techniques and Applications
- Infant Nutrition and Health
- Animal health and immunology
- Organometallic Complex Synthesis and Catalysis
- Biopolymer Synthesis and Applications
- Carbohydrate Chemistry and Synthesis
- Immunotherapy and Immune Responses
- Glycosylation and Glycoproteins Research
University of Wrocław
2016-2025
Faculty (United Kingdom)
2016
Chinese Academy of Sciences
2012
San Jose State University
2008
Łukasiewicz Research Network - Metal Forming Institute
2007
University of Pisa
2004
Gdańsk University of Technology
1999
The University of Texas at Austin
1995
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT21-Thiatetra-p-tolylporphyrin and its copper(II) bicarbonate complex. Structural effects of copper-thiophene bindingLechoslaw Latos-Grazynski, Jerzy Lisowski, Marilyn M. Olmstead, Alan L. BalchCite this: J. Am. Chem. Soc. 1987, 109, 14, 4428–4429Publication Date (Print):July 1, 1987Publication History Published online1 May 2002Published inissue 1 July...
The chiral nonaazamacrocyclic amine L, which is a reduction product of the 3 + Schiff base macrocycle, wraps around lanthanide(III) ions to form enantiopure helical complexes. These Ce(III), Pr(III), Nd(III), Eu(III), Gd(III), Tb(III), Er(III), Yb(III) and Lu(III) complexes have been isolated in characterized by spectroscopic methods. X-ray crystal structures Ln(III) with L show that thermodynamic complexation RRRRRR-isomer macrocycle (M)-helical complex case Nd(III) Eu(III). In contrast,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFive-coordinate complexes of 21-thiaporphyrin. Preparations, spectra, and structures iron(II), nickel(II), copper(II) complexesLechoslaw Latos-Grazynski, Jerzy Lisowski, Marilyn M. Olmstead, Alan L. BalchCite this: Inorg. Chem. 1989, 28, 6, 1183–1188Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March...
Abstract Three zinc(II) ions in combination with two units of enantiopure [3+3] triphenolic Schiff‐base macrocycles 1 , 2 3 or 4 form cage‐like chiral complexes. The formation these complexes is accompanied by the enantioselective self‐recognition macrocyclic units. X‐ray crystal structures trinuclear show hollow metal–organic molecules. In some forms, barrel‐shaped are arranged a window‐to‐window fashion, which results 1D channels and both intrinsic extrinsic porosity. microporous nature...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT1H NMR Spectroscopic Study of Paramagnetic Lanthanide(III) Texaphyrins. Effect Axial LigationJerzy Lisowski, Jonathan L. Sessler, Vincent Lynch, and Tarak D. ModyCite this: J. Am. Chem. Soc. 1995, 117, 8, 2273–2285Publication Date (Print):March 1, 1995Publication History Published online1 May 2002Published inissue 1 March 1995https://doi.org/10.1021/ja00113a016RIGHTS & PERMISSIONSArticle Views819Altmetric-Citations101LEARN ABOUT THESE...
Giving lanthanides a new twist: The chiral nonaaza macrocycle L wraps tightly around lanthanide(III) ions in helical fashion (see picture). all-R enantiomer of the macrocycle, LRRRRRR, forms kinetically controlled complexation products M helicity (100 % de), which undergo inversion to P diastereomer (90 de). Both have been isolated enantiopure form and structurally characterized. Supporting information for this article is available on WWW under...
There is great interest in design and synthesis of small molecules which selectively target specific genes to inhibit biological functions particular DNA structures participate. Among these studies, chiral recognition has been received much attention because more evidences have shown that conversions the chirality diverse conformations are involved a series important life events. Here, we report pair helical macrocyclic lanthanide (III) complexes, (M)-Yb[L(SSSSSS)](3+) (P)-Yb[L(RRRRRR)](3+),...
Two enantiomers of the cage-type complex, [Co3LR2] and [Co3LS2] a large hexaazatriphenolic [3 + 3] macrocyclic imine L, have been synthesized characterized on basis NMR, CD, ESI MS spectra. The X-ray crystal structures [Co3L2] crystalline forms reveal two macrocycles cone shape stitched together by three Co(II) ions, forming barrel-shaped molecule with central void. Because limited size cavity enantiopure nature these enantiomeric complexes, both size-selective enantioselective binding guest...
The macrocyclic [LnNiL]Cl3 complexes (Ln = LaIII, CeIII, PrIII, NdIII, SmIII, EuIII) contain both lanthanide and transition metal ions. crystal structure of [LaNiL]Cl3 reveals a square planar environment Ni(II) ion an 8-coordinate, irregular coordination sphere La(III) ion. 1H 13C NMR spectra these compounds have been assigned on the basis 2D techniques. analysis isotropic shifts paramagnetic shows importance contact dipolar contributions.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies of the reduction nickel(II) complex 5,10,15,20-tetraphenyl-21-thiaporphyrin to form corresponding nickel(I) complexesPiotr Chmielewski, Maria Grzeszczuk, Lechoslaw Latos-Grazynski, and Jerzy LisowskiCite this: Inorg. Chem. 1989, 28, 18, 3546–3552Publication Date (Print):September 1, 1989Publication History Published online1 May 2002Published inissue 1 September...
Reaction of 4-tert-butyl-2,6-diformylphenol with (1R,2R)- or (1S,2S)-1,2-diaminocyclohexane in the presence 1 equivalent Zn2+ ions leads to selective formation a chiral 2+2 macrocycle. Application 0.5 under same conditions 3+3 macrocycle, which forms cavitand-shaped trinuclear double-decker complex Zn(II).
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal and molecular structure of 21-thia-5,20-diphenyl-10,15-bis(p-nitrophenyl)-porphyrin 21,23-dithiatetraphenylporphyrin. The influence sulfur on the .pi.-delocalization patternLechoslaw Latos-Grazynski, Jerzy Lisowski, Ludmila Szterenberg, Marilyn M. Olmstead, Alan L. BalchCite this: J. Org. Chem. 1991, 56, 12, 4043–4045Publication Date (Print):June 1, 1991Publication History Published online1 May 2002Published inissue 1 June...
The controlled formation of lanthanide(III) dinuclear μ-hydroxo-bridged [Ln(2)L(2)(μ-OH)(2)X(2)](n+) complexes (where X = H(2)O, NO(3)(-), or Cl(-)) the enantiopure chiral macrocycle L is reported. (1)H and (13)C NMR resonances these have been assigned on basis COSY, NOESY, TOCSY, HMQC spectra. observed NOE connectivities confirm that dimeric solid-state structure retained in solution. enantiomeric nature obtained binding hydroxide anions are reflected their CD accompanied by a complete...
The reaction of fluoride anions with mononuclear rare-earth(III) complexes the hexaazamacrocycle derived from 2,6-diformylpyridine and ethylenediamine affords trinuclear coordination compounds [Ln3L3(μ2-F)4(NO3)2](NO3)3. X-ray crystal structures these show triplex cationic where three roughly parallel macrocyclic lanthanide(III) units are linked by bis-μ2-F bridges. detailed analysis photophysical properties [Eu3L3(μ2-F)4(NO3)2](NO3)3·2H2O [Tb3L3(μ2-F)4(NO3)2](NO3)3·3H2O reveals different...
Two new Schiff base macrocycles – a 4+4 condensation product and meso-type 2+2 were obtained in reaction of trans-1,2-diaminocyclohexane 2,6-diformylpyridine. Reduction these compounds led to the corresponding macrocyclic amines. The characterised by NMR spectroscopy electrospray mass spectrometry. symmetry stereochemistry macrocycles, as well 3+3 diastereomers identified solution, has been established. X-Ray structures confirm configurations determined on basis spectroscopic investigations....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium complexes of 21-thiaporphyrin: syntheses and characterizationLechoslaw Latos-Grazynski, Jerzy Lisowski, Piotr Chmielewski, Maria Grzeszczuk, Marilyn M. Olmstead, Alan L. BalchCite this: Inorg. Chem. 1994, 33, 2, 192–197Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published inissue 1 January 1994https://pubs.acs.org/doi/10.1021/ic00080a004https://doi.org/10.1021/ic00080a004research-articleACS...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and structural characterization of a six-coordinate 21-thiaporphyrin complex: RhIII(STPP)Cl2 (STPP = tetraphenyl-21-thiaporphyrin anion)Lechoslaw Latos-Grazynski, Jerzy Lisowski, Marilyn M. Olmstead, Alan L. BalchCite this: Inorg. Chem. 1989, 28, 17, 3328–3331Publication Date (Print):August 1, 1989Publication History Published online1 May 2002Published inissue 1 August...
Lanthanide(III) complexes of the enantiopure chiral hexaaza tetraamine macrocycle L, 2(R),7(R),18(R),23(R)-1,8,15,17,24,31-hexaazatricyclo[25.3.1.1.0.0]-dotriaconta-10,12,14,26,28,30-hexaene, as well its meso-type 2(R),7(R),18(S),23(S)-isomeric L1, have been synthesized and characterized by spectroscopic methods. The 2D NMR spectra confirm identity these indicate C2 symmetry [LnL]3+ Cs [LnL1]3+ complexes. crystal structures [PrL(NO3)(H2O)2](NO3)2, [EuL(NO3)(H2O)2](NO3)2,...
A cluster of lanthanide(III) or yttrium(III) ions, Ln3(μ3-OH)2, (Ln(III) = Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III), Yb(III), Y(III)) can be bound in the center a chiral macrocyclic amines H3L1(R), H3L1(S), and H3L2(S) obtained reduction 3 + condensation product (1R,2R)- (1S,2S)-1,2-diaminocyclohexane 2,6-diformyl-4-methylphenol 2,6-diformyl-4-tertbutylphenol. X-ray crystal structures Y(III) complexes reveal trinuclear with Ln(III) ions bridged by phenolate oxygen atoms...
The unprecedented template action of ytterbium ion in the synthesis pentaaza macrocyclic Schiff bases is exemplified by isolation and definitive identification seven-coordinate pentagonal bipyramidal complex with formula [YbLCl(2)]ClO(4) (1), where L 2,14-dimethyl-3,6,10,13,19-pentaazabicyclo[13.3.1]nonadeca-1(19),2,13,15,17-pentaene, providing first example crystallographically characterized complex. For time spectrum (2)F(7/2) --> (2)F(5/2) transition has been obtained for a molecular...
We investigate the role of axial ligands on near-IR-optical and paramagnetic NMR spectra complex [YbL](+3) where L is stereodefined enantiopure chiral macrocycle (L = hexaazapentacyclo[25.3.1.1(12,24).0(4,9).0(19,24)]dotriaconta-1(31),2,10,12,14,16(32),17,25,27,29-decaene). The conformation in solution lanthanide characterized by analyzing pseudocontact 1H shifts consistent with X-ray data single crystal analogue systems. confined within a thin equatorial disk, leaving cation open to at...