1
|
Rigamonti L. Oligonuclear Metal Complexes with Schiff Base Ligands. Int J Mol Sci 2023; 24:11014. [PMID: 37446197 DOI: 10.3390/ijms241311014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
As stated by two of the seven papers [...].
Collapse
Affiliation(s)
- Luca Rigamonti
- Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| |
Collapse
|
2
|
New Dinuclear Macrocyclic Copper(II) Complexes as Potentially Fluorescent and Magnetic Materials. Int J Mol Sci 2023; 24:ijms24033017. [PMID: 36769351 PMCID: PMC9918273 DOI: 10.3390/ijms24033017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/09/2023] Open
Abstract
Two dinuclear copper(II) complexes with macrocyclic Schiff bases K1 and K2 were prepared by the template reaction of (R)-(+)-1,1'-binaphthalene-2,2'-diamine and 2-hydroxy-5-methyl-1,3-benzenedicarboxaldehyde K1, or 4-tert-butyl-2,6-diformylphenol K2 with copper(II) chloride dihydrate. The compounds were characterized by spectroscopic methods. X-ray crystal structure determination and DFT calculations confirmed their geometry in solution and in the solid phase. Moreover, intermolecular interactions in the crystal structure of K2 were analyzed using 3D Hirshfeld surfaces and the related 2D fingerprint plots. The magnetic study revealed very strong antiferromagnetic CuII-CuII exchange interactions, which were supported by magneto-structural correlation and DFT calculations conducted within a broken symmetry (BS) framework. Complexes K1 and K2 exhibited luminescent properties that may be of great importance in the search for new OLEDs. Both K1 and K2 complexes showed emissions in the range of 392-424 nm in solutions at various polarities. Thin materials of the studied compounds were deposited on Si(111) by the spin-coating method or by thermal vapor deposition and studied by scanning electron microscopy (SEM/EDS), atomic force microscopy (AFM), and fluorescence spectroscopy. The thermally deposited K1 and K2 materials showed high fluorescence intensity in the range of 318-531 nm for K1/Si and 326-472 nm for the K2/Si material, indicating that they could be used in optical devices.
Collapse
|
3
|
Malik M, Świtlicka A, Bieńko A, Komarnicka UK, Bieńko DC, Kozieł S, Kyzioł A, Mazur T, Machura B. Copper(ii) complexes with 2-ethylpyridine and related hydroxyl pyridine derivatives: structural, spectroscopic, magnetic and anticancer in vitro studies. RSC Adv 2022; 12:27648-27665. [PMID: 36276031 PMCID: PMC9516696 DOI: 10.1039/d2ra05133h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/21/2022] [Indexed: 12/01/2023] Open
Abstract
Copper(ii) complexes with 2-ethylpyridine (1 and 2), 2-(hydroxyethyl)pyridine (3) and 2-(hydroxymethyl)pyridine (4) have been synthesized and characterized. All inorganic compounds have been studied by X-ray diffraction, thermogravimetry, vibrational and EPR spectroscopy as well as theoretical methods. The geometry of the complexes 1, 3 and 4 adopts nearly perfect geometry close to square planar (1, 4) or square pyramid (3) stereochemistry, respectively. The distortion of five coordinated copper(ii) ions in complex 2 indicates intermediate geometry between square pyramidal and trigonal pyramidal geometry. Further, the magnetic measurements have shown antiferromagnetic behaviour of the prepared complexes in a wide range of temperatures. The antiferromagnetic behaviour of 2 should originate from the superexchange interactions between each copper(ii) ion by the mixed chloride and μ4-O ion pathways. Besides, the weak antiferromagnetic character of 2 can be also attributed to the presence of intrachain exchange between dimeric units through double oxide ion. In complex 3, strong antiferromagnetic coupling between Cu(ii) centres in the Cu2O2Cl2 moiety is found. The cytotoxicity of all compounds was tested in vitro against various cancer cell lines: human lung adenocarcinoma (A549), human breast adenocarcinoma (MCF7), human prostate carcinoma; derived from metastatic site: brain (DU-145) and two normal cell lines: human embryonic kidney (HEK293T) and human keratinocyte (HaCat). Furthermore, Pluronic P-123 micelles loaded with selected complexes (1 and 3) were proposed to overcome low solubility and to minimize systemic side effects. More detailed study revealed that complex 3 loaded inside micelles causes DU-145 cells' death with simultaneous decrease of mitochondrial membrane potential and a high level of reactive oxygen species generation. The stability of the compounds 1-4 in DMSO was confirmed by UV-Vis and FT-IR spectra studies.
Collapse
Affiliation(s)
- Magdalena Malik
- Faculty of Chemistry, Wroclaw University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Anna Świtlicka
- Department of Crystallography, Institute of Chemistry, University of Silesia Szkolna 9 40-006 Katowice Poland
| | - Alina Bieńko
- Faculty of Chemistry, University of Wroclaw F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Urszula K Komarnicka
- Faculty of Chemistry, University of Wroclaw F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Dariusz C Bieńko
- Faculty of Chemistry, Wroclaw University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Sandra Kozieł
- Faculty of Chemistry, University of Wroclaw F. Joliot-Curie 14 50-383 Wrocław Poland
| | - Agnieszka Kyzioł
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Kraków Poland
| | - Tomasz Mazur
- Faculty of Chemistry, Wroclaw University of Science and Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Barbara Machura
- Department of Crystallography, Institute of Chemistry, University of Silesia Szkolna 9 40-006 Katowice Poland
| |
Collapse
|
5
|
Marchetti F, Tombesi A, Di Nicola C, Pettinari R, Verdicchio F, Crispini A, Scarpelli F, Baldassarri C, Marangoni E, Hofer A, Galindo A, Petrelli R. Zinc(II) Complex with Pyrazolone-Based Hydrazones is Strongly Effective against Trypanosoma brucei Which Causes African Sleeping Sickness. Inorg Chem 2022; 61:13561-13575. [PMID: 35969809 PMCID: PMC9446893 DOI: 10.1021/acs.inorgchem.2c02201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Two pyrazolone-based hydrazones H2L′
[in general,
H2L′; in detail, H2L1 = 5-methyl-2-phenyl-4-(2-phenyl-1-(2-(4-(trifluoromethyl)phenyl)hydrazineyl)ethyl)-2,4-dihydro-3H-pyrazol-3-one, H2L2 = (Z)-5-methyl-2-phenyl-4-(2-phenyl-1-(2-(pyridin-2-yl)hydrazineyl)ethylidene)-2,4-dihydro-3H-pyrazol-3-one] were reacted with Zn(II) and Cu(II) acceptors
affording the complexes [Zn(HL1)2(MeOH)2], [Cu(HL1)2], and [M(HL2)2] (M = Cu or Zn). X-ray and DFT studies showed the free
proligands to exist in the N–H,N–H tautomeric form and
that in [Zn(HL1)2(MeOH)2], zinc is
six-coordinated by the N,O-chelated (HL1) ligand and other
two oxygen atoms of coordinated methanol molecules, while [Cu(HL1)2] adopts a square planar geometry with the two
(HL1) ligands in anti-conformation. Finally, the [M(HL2)2] complexes are octahedral with the two (HL2) ligands acting as κ-O,N,N-donors in planar conformation.
Both the proligands and metal complexes were tested against the parasite Trypanosoma brucei and Balb3T3 cells. The Zn(II)
complexes were found to be very powerful, more than the starting proligands,
while maintaining a good safety level. In detail, H2L1 and its
Zn(II) complex have high selective index (55 and >100, respectively)
against T. brucei compared to the mammalian
Balb/3T3 reference cells. These results encouraged the researchers
to investigate the mechanism of action of these compounds that have
no structural relations with the already known drugs used against T. brucei. Interestingly, the analysis of NTP and
dNTP pools in T. brucei treated by H2L1 and its Zn(II) complex showed that the drugs had a strong
impact on the CTP pools, making it likely that CTP synthetase is the
targeted enzyme. New
Zn(II) and Cu(II) complexes with pyrazolone-based hydrazone
ligands display different structural features. The Zn(II) complexes
show strong efficiency against the parasite Trypanosoma
brucei, while maintaining a good safety level. They
strongly impact the CTP pools, indicating that CTP synthetase is the
targeted enzyme.
Collapse
Affiliation(s)
- Fabio Marchetti
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Alessia Tombesi
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Corrado Di Nicola
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Riccardo Pettinari
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Federico Verdicchio
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Alessandra Crispini
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Francesca Scarpelli
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Cecilia Baldassarri
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Elisa Marangoni
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Anders Hofer
- Department of Medical Biochemistry and Biophysics, Umea University, 901 87 Umeå, Sweden
| | - Agustín Galindo
- Departamento de Química Inorganíca, Facultad de Química, Universidad de Sevilla, Aptdo 1203, 41071 Sevilla, Spain
| | - Riccardo Petrelli
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| |
Collapse
|
8
|
Mikhailov OV. The Physical Chemistry and Chemical Physics (PCCP) Section of the International Journal of Molecular Sciences in Its Publications: The First 300 Thematic Articles in the First 3 Years. Int J Mol Sci 2021; 23:241. [PMID: 35008667 PMCID: PMC8745423 DOI: 10.3390/ijms23010241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
The Physical Chemistry and Chemical Physics Section (PCCP Section) is one of the youngest among the sections of the International Journal of Molecular Sciences (IJMS)-the year 2021 will only mark three years since its inception [...].
Collapse
Affiliation(s)
- Oleg V Mikhailov
- Department of Analytical Chemistry, Certification and Quality Management, Kazan National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia
| |
Collapse
|
9
|
Barwiolek M, Jankowska D, Chorobinski M, Kaczmarek-Kędziera A, Łakomska I, Wojtulewski S, Muzioł TM. New dinuclear zinc(ii) complexes with Schiff bases obtained from o-phenylenediamine and their application as fluorescent materials in spin coating deposition. RSC Adv 2021; 11:24515-24525. [PMID: 35481006 PMCID: PMC9036901 DOI: 10.1039/d1ra03096e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/05/2021] [Indexed: 01/22/2023] Open
Abstract
Two Zn(ii) complexes, K1 and K2, obtained from the template reaction of zinc(ii) acetate dihydrate with o-phenylenediamine and 2-hydroxy-5-methylisophthalaldehyde (K1) or 2-hydroxy-5-tert-butyl-1,3-benzenedicarboxaldehyde (K2), respectively, were characterized by X-ray crystallography, spectroscopic (UV-vis, fluorescence and IR), and thermal methods. In the complex [Zn2(MeO)1.4(OH)0.6(L1)]·2H2O K1, there are two binding sites in the macrocyclic ligand and they are occupied by zinc(ii) cations found in slightly distorted square pyramidal environment. The zinc(ii) cations are connected by slightly asymmetric oxo bridges with a Zn1–O14–Zn1[−x, −y + 1, −z + 1] angle of 104.8(2)°. In the dimer [Zn2(CH3COO)2(L2)]·2EtOH K2, there are two crystallographically independent binding sites both occupied by zinc(ii) cations. There is a significant difference between both complexes, since in K1 only one site is independent and the second is occupied due to the application of symmetry rules, and the geometry of both sites is identical. Thin layers of the obtained Zn(ii) complexes were deposited on Si(111) by the spin coating method and studied by scanning electron microscopy (SEM/EDS), atomic force microscopy (AFM), fluorescence spectroscopy and ellipsometry. In the non-absorbing range, the value of the refractive index exhibits normal dispersion between 1.8 and 2.1 for K1_1–K1_3; and between 2.3 and 2.6 for the K2 series of samples established for long wavelengths (longer than 500 nm). The Zn(ii) complexes and their thin layers exhibited fluorescence between 534–573 nm and 495–572 nm for the compounds and the layers, respectively. The highest quantum yield of fluorescence was achieved for K2 in benzene and in the solid state ϕ = 0.78 and 0.58, respectively. The influence of the solvent polarity on the fluorescence properties of the obtained complexes was studied. Additionally, DFT calculations were performed to explain the structures and electronic spectral properties of the complexes. Tin fluorescent materials were obtained using a spin coating method.![]()
Collapse
Affiliation(s)
- Magdalena Barwiolek
- Faculty of Chemistry, Nicolaus Copernicus University in Torun 87-100 Torun Poland
| | - Dominika Jankowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun 87-100 Torun Poland
| | - Mateusz Chorobinski
- Institute of Mathematics and Physics, UTP University of Science and Technology 85-796 Bydgoszcz Poland
| | | | - Iwona Łakomska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun 87-100 Torun Poland
| | - Slawomir Wojtulewski
- Faculty of Chemistry, University of Białystok Ciolkowskiego 1K Białystok 15-245 Poland
| | - Tadeusz M Muzioł
- Faculty of Chemistry, Nicolaus Copernicus University in Torun 87-100 Torun Poland
| |
Collapse
|
10
|
Piec K, Wątły J, Jerzykiewicz M, Kłak J, Plichta A, John Ł. Mono-substituted cage-like silsesquioxanes bound by trifunctional acyl chloride as a multi-donor N,O-type ligand in copper(ii) coordination chemistry: synthesis and structural properties. NEW J CHEM 2021. [DOI: 10.1039/d0nj05425a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this paper, we report on the synthesis of novel copper(ii) complexes containing a multi-donor N,O-type ligand based on mono-substituted cage-like silsesquioxanes bound by trifunctional acyl chloride.
Collapse
Affiliation(s)
- Kamila Piec
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Joanna Wątły
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | | | - Julia Kłak
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| | - Andrzej Plichta
- Faculty of Chemistry
- Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Łukasz John
- Faculty of Chemistry
- University of Wrocław
- 50-383 Wrocław
- Poland
| |
Collapse
|