A5053431113- Advanced NMR Techniques and Applications
- Molecular spectroscopy and chirality
- NMR spectroscopy and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Chemical Reactions and Isotopes
- Crystallography and molecular interactions
- Atomic and Subatomic Physics Research
- Petroleum Processing and Analysis
- Molecular Spectroscopy and Structure
- Hydrocarbon exploration and reservoir analysis
- Carbohydrate Chemistry and Synthesis
- Mesoporous Materials and Catalysis
- DNA and Nucleic Acid Chemistry
- Metal complexes synthesis and properties
- Chemical Synthesis and Analysis
- Advanced Chemical Physics Studies
- Chemical Reaction Mechanisms
- Crystal structures of chemical compounds
- Inorganic and Organometallic Chemistry
- Zeolite Catalysis and Synthesis
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Nuclear Physics and Applications
- Nonlinear Optical Materials Research
- Electron Spin Resonance Studies
Rudjer Boskovic Institute
2009-2024
Greek Rescue Team
2021
University of Zagreb
2008-2019
New Mexico Resonance
2019
University of Split
2008
Institute of Parasitology
2005
Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry
2005
Four derivatives of thymol, carvacrol, and eugenol were synthesized: 4-(hydroxymethyl)-5-isopropyl-2-methylphenol, 4,4′-methylenebis(5-isopropyl-2-methyl)phenol, 4-allyl-6-(hydroxymethyl)-2-methoxyphenol, 4-(hydroxymethyl)-2-isopropyl-5-methylphenol. The obtained showed remarkably better antioxidative properties according to 1,1-diphenyl-2-picrylhydrazyl assay (50% inhibitory concentrations = 4–156 µg/mL) Rancimat (protection factors 1.55–5.84) when compared with parent compounds values...
Supramolecular ionogels were prepared by the gelation of room-temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4 ]) with (S,S)-bis(leucinol)oxalamide. Remarkably, conductivity solutions and low gelator concentrations is higher than that neat [BMIm][BF4 ]. On basis molecular dynamics simulations quantum mechanical calculations, origin this phenomenon attributed to affinity molecules towards [BF4 ](-) ions, which reduces electrostatic attraction between...
We describe the utilization of bis-isopropylidene-protected d-fructose-derived aldehyde in Passerini reaction with various acids and isocyanides. A library densely functionalized glycomimetics bearing up to 3 carbohydrate units was obtained high yields diastereoselectivities. The configuration newly formed stereocenter determined diastereoselectivity rationalized by DFT calculations.
Among three novel DBTAA derivatives only the DBTAA–propyl–adenine conjugate 1 showed recognition of consecutive oligo dT sequence by increased affinity and specific induced chirooptical response in comparison to other single stranded RNA DNA; whereby particular importance is up until now unique efficient differentiation between rU. At variance, its close analogue DBTAA–hexyl–adenine 2 did not reveal any selectivity ss-DNA/RNA pointing out important role steric factors (linker length);...
The dependence of N1/9 and C1' chemical shielding (CS) tensors on the glycosidic bond orientation (χ) sugar pucker (P) in DNA nucleosides 2'-deoxyadenosine, 2'-deoxyguanosine, 2'-deoxycytidine, 2'-deoxythymidine was studied using calculation methods quantum chemistry. results indicate that these CS-tensors exhibit a significant degree conformational χ P structural parameters. presented data test underlying assumptions currently established for interpretation cross-correlated relaxation rates...
Abstract We present a new application of covariance nuclear magnetic resonance processing based on 1 H 13 C‐HMBC experiments which provides an effective way for establishing indirect H and C C spin connectivity at natural isotope abundance. The method, identifies correlated networks in terms between one‐dimensional traces from single decoupled HMBC experiment, derives as well maps the two‐dimensional frequency domain heteronuclear long‐range correlation data matrix. potential limitations...
Following the assumption that crucial processes governing formation, properties, and evolution of core (amorphous silica)@shell (organocations) nanoparticles (NPs) take place during short-time, room-temperature (rt) stirring/aging homogeneous reaction mixtures (HmRMs) formed by hydrolysis tetraethyl orthosilicate (TEOS) in solutions Org(OH)n, we investigated these various experimental methods (pH, ionic conductivity, 29Si NMR, dynamic light scattering, atomic force microscopy). The analysis...
We have shown that asphaltene self-association induces temperature gradients and convection currents it is necessary to suppress these effects obtain accurate data by DOSY NMR techniques. An interesting finding of this investigation aggregation process has been found be affected the magnetic field. The obtained results for first time a significant increase in diffusion coefficients aggregates upon field strength indicating higher molecular mobility present species possible degradation...
Displacement of TPA<sup>+</sup> ions from the nanoparticle shell exposes terminal silanol groups, which enables aggregation collided nanoparticles.
We demonstrated the hitherto unknown property of mycotoxin sterigmatocystin (STC) to provide homogeneous solutions in aqueous medium by forming a unique aggregate type (not formed analogous aflatoxins), characterized exceptionally strong circular dichroism (CD) bands 300-400 nm range. Results showed that these CD do not originate from intrinsic STC chirality but are specific peculiar aggregation process similar psi-DNA response. Transmission electron microscopy (TEM) experiments revealed...
Abstract The formation of glycation products in model systems consisting fructose and the endogenous opioid peptides not containing lysine residue, such as Leu‐enkephalin (Tyr‐Gly‐Gly‐Phe‐Leu) Met‐enkephalin (Tyr‐Gly‐Gly‐Phe‐Met), or their fragments, Tyr‐Gly‐Gly‐Phe Tyr‐Gly‐Gly, was examined. N ‐(2‐Deoxy‐aldos‐2‐yl)‐peptides (Heyns compounds) well diastereoisomeric imidazolidinone compounds were identified reaction ‐terminal amino group for each studied. structure relative configuration C‐2...
A ferrocene pseudopeptide chiroptical switch sensitive to solvent exchange and acid addition with a response in the visible region of CD spectra.