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Juribašić Kulcsár M, Gabelica V, Plavec J. Solution-State Structure of a Long-Loop G-quadruplex Formed within Promoters of Plasmodium falciparum B var Genes. Chemistry 2024:e202401190. [PMID: 38647110 DOI: 10.1002/chem.202401190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
We report the high-resolution NMR solution-state structure of an intramolecular G-quadruplex with a diagonal loop of ten nucleotides. The G-quadruplex is formed by a 34-nt DNA sequence, d[CAG3T2A2G3TATA2CT3AG4T2AG3T2], named UpsB-Q-1. This sequence is found within promoters of the var genes of Plasmodium falciparum, which play a key role in malaria pathogenesis and evasion of the immune system. The [3+1]-hybrid G-quadruplex formed under physiologically relevant conditions exhibits a unique equilibrium between two structures, both stabilized by base stacking and non-canonical hydrogen bonding. Unique equilibrium of the two closely related 3D structures originates from a North-South repuckering of deoxyribose moiety of residue T27 in the lateral loop. Besides the 12 guanines involved in three G-quartets, most residues in loop regions are involved in interactions at both G-quartet-loop interfaces.
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Affiliation(s)
| | - Valérie Gabelica
- University of Geneva, School of Pharmaceutical Sciences, SWITZERLAND
| | - Janez Plavec
- National Institute of Chemistry, Slovenian NMR centre, Hajdrihova 19, SI-1001, Ljubljana, SLOVENIA
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2
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Pajić M, Juribašić Kulcsár M. Solid-State Synthesis of B←N Adducts by the Amine-Facilitated Trimerization of the Phenylboronic Acid. Chemistry 2024; 30:e202400190. [PMID: 38334299 DOI: 10.1002/chem.202400190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/10/2024]
Abstract
Stable boroxine-amine adducts comprising dative B←N bond(s) were prepared by mechanochemically-induced reactions of phenylboronic acid (PBA) and amines (pyridine, DMAP, 1H-pyrazole, piperidine, DABCO, hexamethylenetetramine, or 4,4'-bipyridine). In-situ Raman monitoring, ex-situ PXRD and DFT calculations were used for product identification. Stoichiometry of the product (3 : 1, 3 : 2 or 6 : 1 adduct) was controlled by the amine structure and the molar ratio of the reactants. The 1 : 2 H-bonded assembly of PBA and 4,4'-bipyridine (bpy) was confirmed as an intermediate in the adduct formation for bpy. Competitive binding experiments indicated that the exchange of the amines in the 3 : 1 adducts follows the computed adduct stabilities that increase with the amine basicity. Following the DFT prediction, the first adduct with two different amines, DMAP and pip, bound to one boroxine moiety was isolated and structurally characterized. Results show that calculations can be used to predict possible and preferred product(s) and their spectral characteristics.
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Affiliation(s)
- Mario Pajić
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000, Zagreb, Croatia
| | - Marina Juribašić Kulcsár
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000, Zagreb, Croatia
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3
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Carta M, Vugrin L, Miletić G, Kulcsár MJ, Ricci PC, Halasz I, Delogu F. Mechanochemical reactions from individual impacts to global transformation kinetics. Angew Chem Int Ed Engl 2023:e202308046. [PMID: 37377246 DOI: 10.1002/anie.202308046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 06/29/2023]
Abstract
Typically induced by the mechanical processing of powders in ball mills, mechanochemical transformations are considered to occur as a result of the application of mechanical force to solid reagents. Nevertheless, such claim has remained vague so far and the undeniable deep connection between the dynamic compaction of powders during impacts and the overall transformation degree has yet to be fully disclosed. In the present work, we show that the square planar bis(dibenzoylmethanato)Ni(II) coordination compound undergoes trimerization when its powder experiences even a single ball impact. Based on systematic experiments with individual ball impacts and analysis by Raman spectroscopy, we provide here quantitative mapping of the transformation in the powder compact and deduce bulk reaction kinetics from multiple individual impacts.
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Affiliation(s)
- Maria Carta
- University of Cagliari: Universita degli Studi Di Cagliari, Mechanical, Chemical and Materials Engineering, ITALY
| | - Leonarda Vugrin
- Ruder Boskovic Institute: Institut Ruder Boskovic, Division of Physical Chemistry, CROATIA
| | - Goran Miletić
- Ruder Boskovic Institute: Institut Ruder Boskovic, Division of Physical Chemistry, CROATIA
| | | | - Pier Carlo Ricci
- University of Cagliari: Universita degli Studi Di Cagliari, Physics, ITALY
| | - Ivan Halasz
- Ruder Boskovic Institute: Institut Ruder Boskovic, Division of Physical Chemistry, CROATIA
| | - Francesco Delogu
- University of Cagliari: Universita degli Studi Di Cagliari, Mechanical, Chemical and Materials Engineering, via Marengo 2, 09123, Cagliari, ITALY
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Bjelopetrović A, Barišić D, Duvnjak Z, Džajić I, Juribašić Kulcsár M, Halasz I, Martínez M, Budimir A, Babić D, Ćurić M. A Detailed Kinetico-Mechanistic Investigation on the Palladium C–H Bond Activation in Azobenzenes and Their Monopalladated Derivatives. Inorg Chem 2020; 59:17123-17133. [DOI: 10.1021/acs.inorgchem.0c02418] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Alen Bjelopetrović
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Dajana Barišić
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Zrinka Duvnjak
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Ivan Džajić
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Marina Juribašić Kulcsár
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Ivan Halasz
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Manuel Martínez
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona, Spain
| | - Ana Budimir
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Darko Babić
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Manda Ćurić
- Ruđer Bošković Institute, Division of Physical Chemistry, Bijenička 54, HR-10000 Zagreb, Croatia
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5
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Bjelopetrović A, Robić M, Halasz I, Babić D, Juribašić Kulcsár M, Ćurić M. Facile Mechanochemical Anion Substitution in Cyclopalladated Azo-Benzenes. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alen Bjelopetrović
- Division of Physical Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
| | - Marko Robić
- Division of Physical Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
| | - Ivan Halasz
- Division of Physical Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
| | - Darko Babić
- Division of Physical Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
| | | | - Manda Ćurić
- Division of Physical Chemistry, Ruđer Bošković Institute, HR-10000 Zagreb, Croatia
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Barišić D, Cindro N, Kulcsár MJ, Tireli M, Užarević K, Bregović N, Tomišić V. Protonation and Anion Binding Properties of Aromatic Bis‐Urea Derivatives—Comprehending the Proton Transfer. Chemistry 2019. [DOI: 10.1002/chem.201900675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dajana Barišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Cindro
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | | | - Martina Tireli
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Krunoslav Užarević
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Bregović
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | - Vladislav Tomišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
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Barišić D, Cindro N, Kulcsár MJ, Tireli M, Užarević K, Bregović N, Tomišić V. Front Cover: Protonation and Anion Binding Properties of Aromatic Bis‐Urea Derivatives—Comprehending the Proton Transfer (Chem. Eur. J. 18/2019). Chemistry 2019. [DOI: 10.1002/chem.201900674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dajana Barišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Cindro
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | | | - Martina Tireli
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Krunoslav Užarević
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Bregović
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | - Vladislav Tomišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
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8
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Barišić D, Cindro N, Kulcsár MJ, Tireli M, Užarević K, Bregović N, Tomišić V. Protonation and Anion Binding Properties of Aromatic Bis‐Urea Derivatives—Comprehending the Proton Transfer. Chemistry 2019; 25:4695-4706. [DOI: 10.1002/chem.201805633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 01/08/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Dajana Barišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Cindro
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | | | - Martina Tireli
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Krunoslav Užarević
- Division of Physical ChemistryRuđer Bošković Institute Bijenička cesta 54 10000 Zagreb Croatia
| | - Nikola Bregović
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
| | - Vladislav Tomišić
- Division of Physical ChemistryDepartment of Chemistry, Faculty of Science Horvatovac 102a 10000 Zagreb Croatia
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Tireli M, Maračić S, Lukin S, Kulcsár MJ, Žilić D, Cetina M, Halasz I, Raić-Malić S, Užarević K. Solvent-free copper-catalyzed click chemistry for the synthesis of N-heterocyclic hybrids based on quinoline and 1,2,3-triazole. Beilstein J Org Chem 2017; 13:2352-2363. [PMID: 29181115 PMCID: PMC5687011 DOI: 10.3762/bjoc.13.232] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 10/06/2017] [Indexed: 11/23/2022] Open
Abstract
Copper-catalyzed mechanochemical click reactions using Cu(II), Cu(I) and Cu(0) catalysts have been successfully implemented to provide novel 6-phenyl-2-(trifluoromethyl)quinolines with a phenyl-1,2,3-triazole moiety at O-4 of the quinoline core. Milling procedures proved to be significantly more efficient than the corresponding solution reactions, with up to a 15-fold gain in yield. Efficiency of both solution and milling procedures depended on the p-substituent in the azide reactant, resulting in H < Cl < Br < I reactivity bias. Solid-state catalysis using Cu(II) and Cu(I) catalysts entailed the direct involvement of the copper species in the reaction and generation of highly luminescent compounds which hindered in situ monitoring by Raman spectroscopy. However, in situ monitoring of the milling processes was enabled by using Cu(0) catalysts in the form of brass milling media which offered a direct insight into the reaction pathway of mechanochemical CuAAC reactions, indicating that the catalysis is most likely conducted on the surface of milling balls. Electron spin resonance spectroscopy was used to determine the oxidation and spin states of the respective copper catalysts in bulk products obtained by milling procedures.
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Affiliation(s)
- Martina Tireli
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Silvija Maračić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, HR-10000 Zagreb, Croatia
| | - Stipe Lukin
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Marina Juribašić Kulcsár
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Dijana Žilić
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Mario Cetina
- University of Zagreb, Faculty of Textile Technology, Department of Applied Chemistry, Prilaz baruna Filipovića 28a, HR-10000 Zagreb, Croatia
| | - Ivan Halasz
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
| | - Silvana Raić-Malić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, HR-10000 Zagreb, Croatia
| | - Krunoslav Užarević
- Laboratory for Green Synthesis, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
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Juribašić Kulcsár M, Halasz I, Budimir A, Užarević K, Lukin S, Monas A, Emmerling F, Plavec J, Ćurić M. Reversible Gas–Solid Ammonia N–H Bond Activation Mediated by an Organopalladium Complex. Inorg Chem 2017; 56:5342-5351. [DOI: 10.1021/acs.inorgchem.7b00422] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Marina Juribašić Kulcsár
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Ivan Halasz
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Ana Budimir
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića
1, HR−10000 Zagreb, Croatia
| | - Krunoslav Užarević
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Stipe Lukin
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Andrea Monas
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter Str. 11, 12489 Berlin, Germany
| | - Janez Plavec
- Slovenian NMR Center, National Institute of Chemistry, Hajdrihova
19, SI−1000 Ljubljana, Slovenia
| | - Manda Ćurić
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, HR−10000 Zagreb, Croatia
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11
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Monas A, Užarević K, Halasz I, Kulcsár MJ, Ćurić M. Vapour-induced solid-state C–H bond activation for the clean synthesis of an organopalladium biothiol sensor. Chem Commun (Camb) 2016; 52:12960-12963. [DOI: 10.1039/c6cc06062e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Room-temperature accelerated aging in the solid state has been applied for quantitative azobenzene C–H bond activation by Pd(OAc)2. Water-soluble dicyclopalladated methyl orange is a selective chromogenic biothiol sensor at physiologically-relevant micromolar concentrations in aqueous media.
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Affiliation(s)
- Andrea Monas
- Division of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | - Krunoslav Užarević
- Division of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | - Ivan Halasz
- Division of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | | | - Manda Ćurić
- Division of Physical Chemistry
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
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12
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Tireli M, Juribašić Kulcsár M, Cindro N, Gracin D, Biliškov N, Borovina M, Ćurić M, Halasz I, Užarević K. Mechanochemical reactions studied by in situ Raman spectroscopy: base catalysis in liquid-assisted grinding. Chem Commun (Camb) 2015; 51:8058-61. [DOI: 10.1039/c5cc01915j] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Monitoring byin situRaman spectroscopy of a mechanochemical substitution reaction on a carbonyl group reveals base catalysis akin to catalysis in solution.
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Affiliation(s)
| | | | - Nikola Cindro
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- HR-10000 Zagreb
- Croatia
| | | | | | - Mladen Borovina
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
- Department of Chemistry
- Faculty of Science
| | - Manda Ćurić
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
| | - Ivan Halasz
- Ruđer Bošković Institute
- HR-10000 Zagreb
- Croatia
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