1
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Alić J, Lončarić I, Etter M, Rubčić M, Štefanić Z, Šekutor M, Užarević K, Stolar T. Direct in situ measurement of polymorphic transition temperatures under thermo-mechanochemical conditions. Phys Chem Chem Phys 2024; 26:4840-4844. [PMID: 38276968 DOI: 10.1039/d3cp04364a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
For the first time, we directly measured the onset and completion temperatures of polymorphic transitions under thermo-mechanochemical conditions by simultaneous in situ synchrotron powder X-ray diffraction and temperature monitoring. We determined the thermo-mechanochemical polymorphic transition temperature in 1-adamantyl-1-diamantyl ether to be 31 °C lower than the transition temperature determined by DSC. Our findings highlight the uniqueness of thermo-mechanochemical conditions, with potential applications in polymorph screening.
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Affiliation(s)
- Jasna Alić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Ivor Lončarić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Martin Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22 607 Hamburg, Germany
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Zoran Štefanić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Marina Šekutor
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | | | - Tomislav Stolar
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
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2
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Cvetnić M, Šplajt R, Topić E, Rubčić M, Bregović N. Direct thermodynamic characterization of solid-state reactions by isothermal calorimetry. Phys Chem Chem Phys 2023; 26:67-75. [PMID: 37955204 DOI: 10.1039/d3cp03933a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Despite the growing importance of solid-state reactions, their thermodynamic characterization has largely remained unexplored. This is in part due to the lack of methodology for measuring the heat effects related to reactions between solid reactants. We address here this gap and report on the first direct thermodynamic study of chemical reactions between solid reactants by isothermal calorimetry. Three reaction classes, cationic host-guest complex formation, molecular co-crystallization, and Baeyer-Villiger oxidation were investigated, showcasing the versatility of the devised methodology to provide detailed insight into the enthalpy changes related to various reactions. The reliability of the method was confirmed by correlation with the values obtained via solution calorimetry using Hess's law. The thermodynamic characterization of solid-state reactions described here will enable a deeper understanding of the factors governing solid-state processes.
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Affiliation(s)
- Marija Cvetnić
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac, 102/A, Zagreb 10 000, Croatia.
| | - Robert Šplajt
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac, 102/A, Zagreb 10 000, Croatia.
| | - Edi Topić
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac, 102/A, Zagreb 10 000, Croatia.
| | - Mirta Rubčić
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac, 102/A, Zagreb 10 000, Croatia.
| | - Nikola Bregović
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac, 102/A, Zagreb 10 000, Croatia.
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3
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Lovrenčić Mikelić I, Oreščanin V, Cukrov N, Tomašić N, Rubčić M, Barišić D. Relationships between radionuclides, metals, and sediment properties in sediment of a bay exposed to anthropogenic pressure and mixed sediment sources (Kaštela Bay, Adriatic Sea, Croatia). Mar Pollut Bull 2023; 197:115731. [PMID: 37939518 DOI: 10.1016/j.marpolbul.2023.115731] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023]
Abstract
Natural and anthropogenic radionuclides, metals, organic matter, sediment grain size, mineral composition, and sediment sources were studied in marine sediment of Kaštela Bay up to a depth of 0.5 m. Deposition of man-modified material into the sea was evidenced in sediment mineral composition. Presence of pyrite and hematite in this sediment may pose an environmental concern. Metals, radionuclides, and organic matter were grouped in three groups: (i) variables under no anthropogenic influence and preferentially associated with carbonates (Ca, Sr); (ii) variables under no or weak anthropogenic influence and preferentially associated with aluminosilicates (Al, K, Ti, V, Cr, Mn, Fe, Co, Ni, Ga, Rb, Y, 40K, 232Th); (iii) variables under notable anthropogenic influence and/or natural processes of separation (Cu, Zn, Pb, As, 226Ra, 238U, 137Cs, organic matter). Predominant influencing parameters change with sediment depth for some variables. Anthropogenic influence was the most emphasised for Cu, Zn, and Pb, followed by 137Cs.
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Affiliation(s)
- Ivanka Lovrenčić Mikelić
- Laboratory for Low-Level Radioactivities, Division of Experimental Physics, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| | | | - Neven Cukrov
- Laboratory for Physical Chemistry of Traces, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| | - Nenad Tomašić
- Department of Geology, Faculty of Science, Horvatovac 102a, 10 000 Zagreb, Croatia.
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, Horvatovac 102a, 10 000 Zagreb, Croatia.
| | - Delko Barišić
- Laboratory for Radioecology, Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
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4
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Stolar T, Alić J, Talajić G, Cindro N, Rubčić M, Molčanov K, Užarević K, Hernández JG. Supramolecular intermediates in thermo-mechanochemical direct amidations. Chem Commun (Camb) 2023; 59:13490-13493. [PMID: 37882212 DOI: 10.1039/d3cc04448c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
We present a solvent-free thermo-mechanochemical approach for the direct coupling of carboxylic acids and amines, which avoids activators and additives. Detailed analysis of the reactions by ex situ and in situ monitoring methods led to the observation, isolation, and characterisation of multicomponent crystalline intermediates that precede the formation of amides. We applied our methodology for the quantitative synthesis of the active pharmaceutical ingredient moclobemide.
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Affiliation(s)
- Tomislav Stolar
- Ruđer Bošković Institute, Bijenička c. 54, Zagreb 10000, Croatia.
| | - Jasna Alić
- Ruđer Bošković Institute, Bijenička c. 54, Zagreb 10000, Croatia.
| | - Gregor Talajić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb 10000, Croatia
| | - Nikola Cindro
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb 10000, Croatia
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb 10000, Croatia
| | | | | | - José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Medellín 050010, Colombia.
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5
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Hernández JG, Ardila-Fierro KJ, Gómez S, Stolar T, Rubčić M, Topić E, Hadad CZ, Restrepo A. The Role of Crystalline Intermediates in Mechanochemical Cyclorhodation Reactions Elucidated by in-Situ X-ray Powder Diffraction and Computation. Chemistry 2023; 29:e202301290. [PMID: 37347170 DOI: 10.1002/chem.202301290] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 04/24/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/23/2023]
Abstract
The occurrence of crystalline intermediates in mechanochemical reactions might be more widespread than previously assumed. For example, a recent study involving the acetate-assisted C-H activation of N-Heterocycles with [Cp*RhCl2 ]2 by ball milling revealed the formation of transient cocrystals between the reagents prior to the C-H activation step. However, such crystalline intermediates were only observed through stepwise intervallic ex-situ analysis, and their exact role in the C-H activation process remained unclear. In this study, we monitored the formation of discrete, stoichiometric cocrystals between benzo[h]quinoline and [Cp*RhCl2 ]2 by ball milling using in-situ synchrotron X-ray powder diffraction. This continuous analysis revealed an initial cocrystal that transformed into a second crystalline form. Computational studies showed that differences in noncovalent interactions made the [Cp*RhCl2 ]2 unit in the later-appearing cocrystal more reactive towards NaOAc. This demonstrated the advantage of cocrystal formation before the acetate-assisted metalation-deprotonation step, and how the net cooperative action of weak interactions between the reagents in mechanochemical experiments can lead to stable supramolecular assemblies, which can enhance substrate activation under ball-milling conditions. This could explain the superiority of some mechanochemical reactions, such as acetate-assisted C-H activation, compared to their solution-based counterparts.
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Affiliation(s)
- José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - Karen J Ardila-Fierro
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - Sara Gómez
- Scuola Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126, Pisa, Italy
| | - Tomislav Stolar
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
| | - Mirta Rubčić
- Faculty of Science Department of Chemistry, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - Edi Topić
- Faculty of Science Department of Chemistry, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia
| | - Cacier Z Hadad
- Instituto de Química, Facultad de Ciencias Exactas y Naturales Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, Colombia
| | - Albeiro Restrepo
- Instituto de Química, Facultad de Ciencias Exactas y Naturales Universidad de Antioquia, UdeA, Calle 70 No 52-21, Medellín, Colombia
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6
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Topić E, Šenjug P, Barišić D, Lončarić I, Pajić D, Rubčić M. Structure-Related Evolution of Magnetic Order in Anisidinium Tetrachlorocuprates(II). Cryst Growth Des 2023; 23:4262-4272. [PMID: 37304397 PMCID: PMC10251751 DOI: 10.1021/acs.cgd.3c00066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/26/2023] [Indexed: 06/13/2023]
Abstract
Tetrachlorocuprate(II) hybrids of the three anisidine isomers (ortho-, meta-, and para-, or 2-, 3-, and 4-methoxyaniline, respectively) were prepared and studied in the solid state via X-ray diffraction and magnetization measurements. Depending on the position of the methoxy group of the organic cation, and subsequently, the overall cation geometry, a layered, defective layered, and the structure comprising discrete tetrachlorocuprate(II) units were obtained for the para-, meta-, and ortho-anisidinium hybrids, respectively. In the case of layered and defective layered structures, this affords quasi-2D-layered magnets, demonstrating a complex interplay of strong and weak magnetic interactions that lead to the long-range ferromagnetic (FM) order. In the case of the structure with discrete CuCl42- ions, a peculiar antiferromagnetic (AFM) behavior was revealed. The structural and electronic origins of magnetism are discussed in detail. To supplement it, the method for calculation of dimensionality of the inorganic framework as a function of interaction length was developed. The same was used to discriminate between n-dimensional and "almost" n-dimensional frameworks, to estimate the organic cation geometry limits for layered halometallates, and to provide additional reasoning behind the observed relation between cation geometry and framework dimensionality, as well as their relation to differences in magnetic behavior.
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Affiliation(s)
- Edi Topić
- Department
of Chemistry, Faculty of Science, University
of Zagreb, Horvatovac 102a, Zagreb 10000, Croatia
| | - Pavla Šenjug
- Department
of Physics, Faculty of Science, University
of Zagreb, Bijenička cesta 32, Zagreb 10000, Croatia
| | - Dario Barišić
- Department
of Physics, Faculty of Science, University
of Zagreb, Bijenička cesta 32, Zagreb 10000, Croatia
| | - Ivor Lončarić
- Ruđer
Bošković Institute, Bijenička cesta 54, Zagreb 10000, Croatia
| | - Damir Pajić
- Department
of Physics, Faculty of Science, University
of Zagreb, Bijenička cesta 32, Zagreb 10000, Croatia
| | - Mirta Rubčić
- Department
of Chemistry, Faculty of Science, University
of Zagreb, Horvatovac 102a, Zagreb 10000, Croatia
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7
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Alić J, Messner R, Alešković M, Küstner F, Rubčić M, Lackner F, Ernst WE, Šekutor M. Diamondoid ether clusters in helium nanodroplets. Phys Chem Chem Phys 2023; 25:11951-11958. [PMID: 36942672 PMCID: PMC10155488 DOI: 10.1039/d3cp00489a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Diamondoid ethers were introduced into superfluid helium nanodroplets and the resulting clusters were analyzed by time-of-flight mass spectrometry. Clusters of higher abundances (magic number clusters) were identified and the corresponding potential cluster geometries were obtained from GFN2-xTB and DFT computations. We found that the studied diamondoid ethers readily self-assemble in helium nanodroplets and that London dispersion attraction between hydrocarbon subunits acts as a driving force for cluster formation. On the other hand, hydrogen bonding between ether oxygens and trace water molecules fosters the eventual breakdown of the initial supramolecular aggregate.
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Affiliation(s)
- Jasna Alić
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| | - Roman Messner
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Marija Alešković
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
| | - Florian Küstner
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Florian Lackner
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Wolfgang E Ernst
- Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria.
| | - Marina Šekutor
- Department of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10 000 Zagreb, Croatia.
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8
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Topić E, Rubčić M. Structural Insights into Layered Tetrahalocuprates(II) Based on Small Unsaturated and Cyclic Primary Ammonium Cations. Materials (Basel) 2023; 16:2236. [PMID: 36984117 PMCID: PMC10055728 DOI: 10.3390/ma16062236] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Layered hybrid halometallates represent a promising class of multifunctional materials, yet with many open challenges regarding the interaction between building blocks. In this work, we present a synthetic and analytical methodology for the efficient synthesis and structural analysis of a series of novel tetrahalocuprate(II) hybrids based on small alkylammonium cations. Observed robustness in geometrical motifs provided a platform for crystal structure determination, even from the complex laboratory powder diffraction data. The slight differences in inorganic layer geometry and severe differences in organic bilayer packing are quantified using well-established descriptors for these materials, and dependences of geometric parameters on anion and cation choice are accounted for. Temperature dependence of structural parameters for one of the tetrachlorocuprate hybrids that was chosen as a model unveils a possible geometrical origin of thermochromism in these materials.
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Sarjanović J, Stojić M, Rubčić M, Pavić L, Pisk J. Impedance Spectroscopy as a Powerful Tool for Researching Molybdenum-Based Materials with Schiff Base Hydrazones. Materials (Basel) 2023; 16:1064. [PMID: 36770069 PMCID: PMC9919434 DOI: 10.3390/ma16031064] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Molybdenum coordination complexes are widely applied due to their biological and pharmacological potential, as well as their performance in different catalytic processes. Parent dioxidomolybdenum Schiff base complexes were prepared via the reaction of [MoO2(acac)2] with a hydrazone Schiff-base tetradentate ligand. A new hydrazone-Schiff base (H2L1 and 2) and its corresponding mononuclear and polynuclear dioxidomolybdenum(VI) complex were synthesized and characterized by spectroscopic methods and elemental analyses, and their thermal behavior was investigated by thermogravimetry. The crystal and molecular structures of H2L2 ligands and the complexes [MoO2(L1)(H2O)], [MoO2(L2)(H2O)], [MoO2(L1)(MeOH)]∙MeOH, [MoO2(L1)(EtOH)]∙EtOH, [MoO2(L1)(2-PrOH)]∙2-PrOH, and [MoO2(L1)]n were determined by single-crystal X-ray diffraction. Using the in situ impedance spectroscopy method (IS), the structural transformations of chosen complexes were followed, and their electrical properties were examined in a wide range of temperatures and frequencies.
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Affiliation(s)
- Josipa Sarjanović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Martina Stojić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Luka Pavić
- Ruđer Bošković Institute, Bijenička Cesta 54, 10000 Zagreb, Croatia
| | - Jana Pisk
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
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10
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Vrdoljak V, Hrenar T, Rubčić M, Pavlović G, Friganović T, Cindrić M. Ligand-Modulated Nuclearity and Geometry in Nickel(II) Hydrazone Complexes: From Mononuclear Complexes to Acetato- and/or Phenoxido-Bridged Clusters. Int J Mol Sci 2023; 24:ijms24031909. [PMID: 36768232 PMCID: PMC9915932 DOI: 10.3390/ijms24031909] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
The propensity of 4-hydroxybenzhydrazone-related ligands derived from 3-methoxysalicylaldehyde (H2L3OMe), 4-methoxysalicylaldehyde (H2L4OMe), and salicylaldehyde (H2LH) to act as chelating and/or bridging ligands in Ni(II) complexes was investigated. Three clusters of different nuclearities, [Ni3(L3OMe)2(OAc)2(MeOH)2]∙2MeOH∙MeCN (1∙2MeOH∙MeCN), [Ni2(HL4OMe)(L4OMe)(OAc)(MeOH)2]∙4.7MeOH (2∙4.7MeOH), and [Ni4(HLH)2(LH)2(OAc)2]∙4MeOH·0.63H2O·0.5MeCN·HOAc (3∙4MeOH·0.63H2O·0.5MeCN·HOAc), were prepared from Ni(OAc)2∙4H2O and the corresponding ligand in the presence of Et3N. The hydrazones in these acetato- and phenoxido-bridged clusters acted as singly or doubly deprotonated ligands. When pyridine was used, mononuclear complexes with the square-planar geometry seemed to be favoured, as found for complexes [Ni(L3OMe)(py)] (4), [Ni(L4Ome)(py)] (5) and [Ni(LH)(py)] (6). Ligand substituent effects and the stability of square-planar complexes were investigated and quantified by extensive quantum chemical analysis. Obtained results showed that standard Gibbs energies of binding were lower for square-planar than for octahedral complexes. Starting from [MoO2(L)(EtOH)] complexes as precursors and applying the metal-exchange procedure, the mononuclear complexes [Ni(HL3OMe)2]∙MeOH (7∙MeOH) and [Ni(HLH)]∙2MeOH (9∙2MeOH) and hybrid organic-inorganic compound [Ni2(HL4OMe)2(CH3OH)4][Mo4O10(OCH3)6] (10) were achieved. The octahedral complexes [Ni(HL)2] (7-9) can also be obtained by the direct synthesis from Ni(Oac)2∙4H2O and the appropriate ligand under specific reaction conditions. Crystal and molecular structures of 1∙2MeOH∙MeCN, 2∙4.7MeOH, 3∙4MeOH∙0.63H2O∙0.5MeCN∙HOAc, 4, 5, 9∙2MeOH, and 10 were determined by the single-crystal X-ray diffraction method.
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Affiliation(s)
- Višnja Vrdoljak
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
- Correspondence: ; Tel.: +385-1-4606353
| | - Tomica Hrenar
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Gordana Pavlović
- Department of Applied Chemistry, Faculty of Textile Technology, University of Zagreb, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia
| | - Tomislav Friganović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Marina Cindrić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
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11
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Ardila-Fierro KJ, Rubčić M, Hernández JG. Cocrystal Formation Precedes the Mechanochemically Acetate-Assisted C-H Activation with [Cp*RhCl 2 ] 2. Chemistry 2022; 28:e202200737. [PMID: 35274769 DOI: 10.1002/chem.202200737] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 03/07/2022] [Indexed: 12/16/2022]
Abstract
This work reports the experimentally studied mechanochemical formation of rhodacycles by ball milling pyridine- and quinoline-derived substrates and [Cp*RhCl2 ]2 in the presence of NaOAc. Ex-situ analysis of the mechanochemical reactions using powder X-ray diffraction (PXRD), solid-state UV-vis spectroscopy and ATR-FTIR spectroscopy revealed the formation of unexpected cocrystals between the substrates and the rhodium dimer prior to the C-H activation step. This sequence of events differs from the generally accepted steps in solution in which cleavage of [Cp*RhCl2 ]2 is initiated by acetate ions. Additionally, the mechanochemical approach enabled the synthesis of the six-membered rhodacycle [Cp*Rh(2-benzilpyridine)Cl], a metal complex repeatedly reported as inaccessible in solution. Altogether, the results of this investigation clarify some of the fundamental aspects of mechanochemical cyclometallations.
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Affiliation(s)
- Karen J Ardila-Fierro
- Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
| | - Mirta Rubčić
- University of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac 102a, 10000, Zagreb, Croatia
| | - José G Hernández
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia.,Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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12
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Topić E, Landripet I, Duguin M, Pisk J, Đilović I, Vrdoljak V, Rubčić M. Coordinating and supramolecular prospects of unsymmetrically substituted carbohydrazides. NEW J CHEM 2020. [DOI: 10.1039/d0nj03106b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Unsymmetrically substituted carbohydrazides serve as multifunctional ligands, practicing their chelating and supramolecular roles with cis-dioxomolybdenum(vi) cationic core and the Lindqvist anion.
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Affiliation(s)
- Edi Topić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Ivana Landripet
- Ruđer Bošković Institute
- Division of Materials Chemistry
- 10000 Zagreb
- Croatia
| | - Maëlle Duguin
- INP-ENSIACET
- 31030 Toulouse
- France
- Sleever Technologies
- ZA Gabor
| | - Jana Pisk
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Ivica Đilović
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
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13
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Topić E, Pisk J, Agustin D, Jendrlin M, Cvijanović D, Vrdoljak V, Rubčić M. Discrete and polymeric ensembles based on dinuclear molybdenum( vi) building blocks with adaptive carbohydrazide ligands: from the design to catalytic epoxidation. NEW J CHEM 2020. [DOI: 10.1039/d0nj01045f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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
Discrete and polymeric ensembles based on dimolybdenum(vi) units with adaptive carbohydrazide ligands are described. The polymeric complexes are efficient catalysts for cyclooctene epoxidation under eco-friendly conditions.
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Affiliation(s)
- Edi Topić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Jana Pisk
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | | | - Martin Jendrlin
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Danijela Cvijanović
- University of Zagreb
- School of Medicine
- Department of Chemistry and Biochemistry
- Croatia
| | - Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
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14
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Tuksar M, Rubčić M, Meštrović E. (3,5-Di-methyl-adamantan-1-yl)ammonium methane-sulfonate (memanti-nium mesylate): synthesis, structure and solid-state properties. Acta Crystallogr E Crystallogr Commun 2019; 75:1274-1279. [PMID: 31417806 PMCID: PMC6690476 DOI: 10.1107/s2056989019009988] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/12/2019] [Indexed: 11/10/2022]
Abstract
The title salt crystallizes with three independent ionic pairs in the asymmetric unit. In the crystal, (3,5-dimethyladamantan-1-yl)ammonium cations and methanesulfonate anions associate via N—H⋯O hydrogen bonds into layers that extend parallel to (001) and comprise large supramolecular hydrogen-bonded rings. The asymmetric unit of the title compound, C12H22N+·CH3O3S−, consists of three (3,5-dimethyladamantan-1-yl)ammonium cations, C12H22N+, and three methanesulfonate anions, CH3O3S−. In the crystal, the cations and anions associate via N—H⋯O hydrogen bonds into layers, parallel to the (001) plane, which include large supramolecular hydrogen-bonded rings.
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Affiliation(s)
- Mihaela Tuksar
- PLIVA Croatia Ltd., TAPI Research and Development, Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, HR-10000 Zagreb, Croatia
| | - Ernest Meštrović
- PLIVA Croatia Ltd., TAPI Research and Development, Prilaz baruna Filipovića 29, HR-10000 Zagreb, Croatia
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15
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Pisk J, Rubčić M, Kuzman D, Cindrić M, Agustin D, Vrdoljak V. Molybdenum( vi) complexes of hemilabile aroylhydrazone ligands as efficient catalysts for greener cyclooctene epoxidation: an experimental and theoretical approach. NEW J CHEM 2019. [DOI: 10.1039/c9nj00229d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The focus of this work was on the synthesis, characterization and catalytic activity of Mo(vi) complexes with hemilabile 2-aminobenzhydrazone ligands.
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Affiliation(s)
- Jana Pisk
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Dino Kuzman
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | - Marina Cindrić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
| | | | - Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- Croatia
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16
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Pisk J, Bilić L, Đaković M, Cvijanović D, Damjanović V, Lovrić J, Rubčić M, Vrdoljak V, Cindrić M. Design of mononuclear, binuclear and polynuclear molybdenum(VI) complexes based on ONO benzoylacetone derived enaminones and their in vitro biological activity. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Cindrić M, Rubčić M, Hrenar T, Pisk J, Cvijanović D, Lovrić J, Vrdoljak V. Novel enaminones as non-cytotoxic compounds with mild antibacterial activity: Synthesis and structure-activity correlations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Cindrić M, Stilinović V, Rubčić M, Medak G, Šišak Jung D, Vrdoljak V. Supramolecular assembly of oxalatomolybdates controlled by the hydrogen bonding potential of Co(iii)-ammine cations. CrystEngComm 2018. [DOI: 10.1039/c7ce02205k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Six oxalatomolybdate anions of different nuclearities have been obtained in reactions of {[MoO3(ox)]}n2n− and [Mo2O5(ox)2(H2O)2]2− anions with a series of Co(iii)-ammine cations.
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Affiliation(s)
- Marina Cindrić
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Zagreb
- Croatia
| | | | - Mirta Rubčić
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Zagreb
- Croatia
| | - Glorija Medak
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Zagreb
- Croatia
| | | | - Višnja Vrdoljak
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- Zagreb
- Croatia
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19
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Pisk J, Hrenar T, Rubčić M, Pavlović G, Damjanović V, Lovrić J, Cindrić M, Vrdoljak V. Comparative studies on conventional and solvent-free synthesis toward hydrazones: application of PXRD and chemometric data analysis in mechanochemical reaction monitoring. CrystEngComm 2018. [DOI: 10.1039/c7ce02136d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We describe the implementation of chemometric analysis for mechanochemical synthesis monitoring.
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Affiliation(s)
- Jana Pisk
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Tomica Hrenar
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Mirta Rubčić
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Gordana Pavlović
- Faculty of Textile Technology
- Division of Applied Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Vladimir Damjanović
- School of Medicine
- Department of Chemistry and Biochemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Jasna Lovrić
- School of Medicine
- Department of Chemistry and Biochemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Marina Cindrić
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
| | - Višnja Vrdoljak
- Faculty of Science
- Department of Chemistry
- University of Zagreb
- 10000 Zagreb
- Croatia
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20
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Pavlović G, Rubčić M, Vrdoljak V, Cindrić M. Ligand type and synthetic approach induced variability of supramolecular topologies of [Ni 4L4( ROH) 4] and [Ni 4L4( ROH) X( R1OH). Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315093663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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21
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Garai S, Rubčić M, Bögge H, Haupt ETK, Gouzerh P, Müller A. A unique fluoride nanocontainer: porous molecular capsules can accommodate an unusually high number of "rather labile" fluoride anions. Angew Chem Int Ed Engl 2015; 54:5879-82. [PMID: 25809440 DOI: 10.1002/anie.201411814] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 12/08/2014] [Revised: 02/19/2015] [Indexed: 11/09/2022]
Abstract
The present work refers to the challenging issue of fluoride anion recognition/binding in water by taking advantage of the unique possibilities offered by the porous molecular nanocontainers of the {Mo132} Keplerate type allowing the study of a variety of new phenomena. Reaction of the highly reactive carbonate-type capsule with aqueous HF results in the release of carbon dioxide and integration of an unprecedentedly large number of fluoride anions--partly as coordinated ligands at both the pentagonal units and the linkers, partly as a disordered water/fluoride assembly inside the cavity. The internal assembly and some of the fluoride ligands are easily released, which provides interesting options for future studies regarding coordination chemistry and catalysis under confined conditions.
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Affiliation(s)
- Somenath Garai
- Fakultät für Chemie, Universität Bielefeld, Postfach 100131, 33501 Bielefeld (Germany) http://www.uni-bielefeld.de/chemie/ac1/
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Garai S, Rubčić M, Bögge H, Haupt ETK, Gouzerh P, Müller A. A Unique Fluoride Nanocontainer: Porous Molecular Capsules Can Accommodate an Unusually High Number of “Rather Labile” Fluoride Anions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411814] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Garai S, Rubčić M, Bögge H, Gouzerh P, Müller A. Porous Capsules with a Large Number of Active Sites: Nucleation/Growth under Confined Conditions. Chemistry 2015; 21:4321-5. [DOI: 10.1002/chem.201406191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Indexed: 11/06/2022]
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24
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Vrdoljak V, Pavlović G, Hrenar T, Rubčić M, Siega P, Dreos R, Cindrić M. Cobalt(iii) complexes with tridentate hydrazone ligands: protonation state and hydrogen bond competition. RSC Adv 2015. [DOI: 10.1039/c5ra22068h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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] Open
Abstract
Differently protonated ligands in [Co(HL)(L)] are stabilizedviasupramolecular assembling through O–H⋯O/N and N–H⋯N/O hydrogen bonding. Channels spreading either in each space dimension or predominantly in one direction are formed.
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Affiliation(s)
- Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Gordana Pavlović
- University of Zagreb
- Faculty of Textile Technology
- Division of Applied Chemistry
- 10000 Zagreb
- Croatia
| | - Tomica Hrenar
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Mirta Rubčić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Patrizia Siega
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste
- Italy
| | - Renata Dreos
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste
- Italy
| | - Marina Cindrić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
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25
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Juribašić M, Bregović N, Stilinović V, Tomišić V, Cindrić M, Šket P, Plavec J, Rubčić M, Užarević K. Inside Cover: Supramolecular Stabilization of Metastable Tautomers in Solution and the Solid State (Chem. Eur. J. 52/2014). Chemistry 2014. [DOI: 10.1002/chem.201490215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Rubčić M, Korenev VS, Toma L, Bögge H, Fedin VP, Müller A. Molecular recognition of Ca2+cations by internal and external receptors/interfaces in a spherical porous molybdenum-oxide capsule: unusual coordination scenarios. Inorg Chem Front 2014. [DOI: 10.1039/c4qi00131a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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27
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Juribašić M, Bregović N, Stilinović V, Tomišić V, Cindrić M, Šket P, Plavec J, Rubčić M, Užarević K. Supramolecular Stabilization of Metastable Tautomers in Solution and the Solid State. Chemistry 2014; 20:17333-45. [DOI: 10.1002/chem.201403543] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Indexed: 11/11/2022]
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28
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Užarević K, Halasz I, Đilović I, Bregović N, Rubčić M, Matković-Čalogović D, Tomišić V. Dynamic Molecular Recognition in Solid State for Separating Mixtures of Isomeric Dicarboxylic Acids. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Užarević K, Halasz I, Đilović I, Bregović N, Rubčić M, Matković-Čalogović D, Tomišić V. Dynamic Molecular Recognition in Solid State for Separating Mixtures of Isomeric Dicarboxylic Acids. Angew Chem Int Ed Engl 2013; 52:5504-8. [DOI: 10.1002/anie.201301032] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Indexed: 11/11/2022]
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30
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Rubčić M, Užarević K, Halasz I, Bregović N, Mališ M, Dilović I, Kokan Z, Stein RS, Dinnebier RE, Tomišić V. Desmotropy, polymorphism, and solid-state proton transfer: four solid forms of an aromatic o-hydroxy Schiff base. Chemistry 2012; 18:5620-31. [PMID: 22447516 DOI: 10.1002/chem.201103508] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2011] [Indexed: 11/06/2022]
Abstract
The Schiff base derived from salicylaldehyde and 2-amino-3-hydroxypyridine affords a diversity of solid forms, two polymorphic pairs of the enol-imino (D1 a and D1 b) and keto-amino (D2 a and D2 b) desmotropes. The isolated phases, identified by IR spectroscopy, X-ray crystallography, and (13)C cross-polarization/magnetic angle spinning (CP/MAS) NMR spectroscopy, display essentially planar molecular conformations characterized by strong intramolecular hydrogen bonds of the O-H⋅⋅⋅N (D1) or N-H⋅⋅⋅O (D2) type. A change in the position of the proton within this O⋅⋅⋅H⋅⋅⋅N system is accompanied by substantially different molecular conformations and, subsequently, by divergent supramolecular architectures. The appearance and interconversion conditions for each of the four phases have been established on the basis of a number of solution and solvent-free experiments, and evaluated against the results of computational studies. Solid phases readily convert into the most stable form (D1 a) upon exposure to methanol vapor, heating, or by mechanical treatment, and these transformations are accompanied by a change in the color of the sample. The course of thermally induced transformations has been monitored in detail by means of temperature-resolved powder X-ray diffraction and infrared spectroscopy. Upon dissolution, all forms equilibrate immediately, as confirmed by NMR and UV/Vis spectroscopy in several solvents, with the equilibrium shifted far towards the enol tautomer. This study reveals the significance of peripheral groups in the stabilization of metastable tautomers in the solid state.
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Affiliation(s)
- Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Croatia.
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31
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Novak P, Jednačak T, Parlov Vuković J, Zangger K, Rubčić M, Galić N, Hrenar T. Synthesis, Structural Characterization and Hydrogen Bonding of Mono(salicylidene)carbohydrazide. CROAT CHEM ACTA 2012. [DOI: 10.5562/cca2123] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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32
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Cindrić M, Rubčić M. The Rare Examples of Thiosemicarbazonato Chromium(III) Complexes: Crystal Structures of [Cr(Hsal 4-Metsc)2]Cl CH3OH and [Cr(Hsal 4-Phtsc)2]Cl. CROAT CHEM ACTA 2012. [DOI: 10.5562/cca2153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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33
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Halasz I, Rubčić M, Užarević K, Đilović I, Meštrović E. The cocrystal of 4-oxopimelic acid and 4,4′-bipyridine: polymorphism and solid-state transformations. NEW J CHEM 2011. [DOI: 10.1039/c0nj00569j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Užarević K, Rubčić M, Radić M, Puškarić A, Cindrić M. Mechanosensitive metal–ligand bonds in the design of new coordination compounds. CrystEngComm 2011. [DOI: 10.1039/c0ce00807a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Galić N, Rubčić M, Magdić K, Cindrić M, Tomišić V. Solution and solid-state studies of complexation of transition-metal cations and Al(III) by aroylhydrazones derived from nicotinic acid hydrazide. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.10.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Užarević K, Rubčić M, Stilinović V, Kaitner B, Cindrić M. Keto–enol tautomerism in asymmetric Schiff bases derived from p-phenylenediamine. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.09.034] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Rubčić M, Milić D, Horvat G, Đilović I, Galić N, Tomišić V, Cindrić M. Vanadium-induced formation of thiadiazole and thiazoline compounds. Mononuclear and dinuclear oxovanadium(v) complexes with open-chain and cyclized thiosemicarbazone ligands. Dalton Trans 2009:9914-23. [DOI: 10.1039/b913653c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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