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Ma LJ, Li X, Yan YJ, Yue YN, Dong WK. An investigation of two heterobimetallic [Cu(II)2Ln(III)] (Ln = La and Ce) complexes of a more flexible bis(salamo)‐type ligand. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Paderni D, Giorgi L, Macedi E, Formica M, Paoli P, Rossi P, Fusi V. A selective fluorescent probe for gadolinium III in water based on a Pd II-preorganized chromone-receptor. Dalton Trans 2021; 50:15433-15440. [PMID: 34664572 DOI: 10.1039/d1dt01753e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis, solution studies, photochemical properties and the X-ray structure of a chromone based fluorescent PdII complex are reported. The ligand contains two chromone units linked as side arms to an ethylenediamine moiety; in the PdII complex the metal ion preorganizes the two hydroxychromone units forming a rigid structure with a negatively charged pocket formed by four oxygen atoms that is able to interact with hard metal cations, such as ions, giving rise to stable bimetallic complexes. Upon interaction with LaIII and GdIII, in particular, the emission intensity at 423 nm increases by a factor of 2 and 8, respectively, while the other rare earth ions quench the fluorescence. Spectrofluorimetric studies on real matrices showed the possibility to use this system as a selective fluorescence probe to detect and trace the presence of Gadolinium in environmental water acting as an OFF-ON chemosensor, with a LOD of 0.4 ppm and a LOQ of 1.2 ppm.
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Affiliation(s)
- Daniele Paderni
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", via della Stazione 4, 61029 Urbino, Italy.
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Paderni D, Giorgi L, Fusi V, Formica M, Ambrosi G, Micheloni M. Chemical sensors for rare earth metal ions. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213639] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Giorgi L, Ambrosi G, Paderni D, Conti L, Amatori S, Romagnoli F, Rossi P, Formica M, Macedi E, Giorgi C, Paoli P, Fanelli M, Fusi V. Bis-maltol-polyamine family: structural modifications at strategic positions. Synthesis, coordination and antineoplastic activity of two new ligands. NEW J CHEM 2021. [DOI: 10.1039/d0nj05327a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Substitution at the maltol C6 position affects the antineoplastic and coordination properties of Malten, acting on degradation time, binding ability and biological activity.
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Affiliation(s)
- Luca Giorgi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Gianluca Ambrosi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Daniele Paderni
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Luca Conti
- Department of Chemistry “Ugo Schiff”, University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Stefano Amatori
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa” University of Urbino “Carlo Bo”
- 61032 Fano
- Italy
| | - Francesca Romagnoli
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Patrizia Rossi
- Department of Industrial Engineering, University of Florence
- 50139 Florence
- Italy
| | - Mauro Formica
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Eleonora Macedi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
| | - Claudia Giorgi
- Department of Chemistry “Ugo Schiff”, University of Florence
- 50019 Sesto Fiorentino
- Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence
- 50139 Florence
- Italy
| | - Mirco Fanelli
- Department of Biomolecular Sciences, Molecular Pathology Laboratory “PaoLa” University of Urbino “Carlo Bo”
- 61032 Fano
- Italy
| | - Vieri Fusi
- Dipartimento di Scienze Pure e Applicate, Università degli Studi di Urbino “Carlo Bo”
- I-61029 Urbino
- Italy
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Rossi P, Macedi E, Formica M, Giorgi L, Paoli P, Fusi V. Hetero-Tetranuclear Cu 2+ /Ca 2+ /Ca 2+ /Cu 2+ Architectures Based On Malten Ligand: Scaffold for Anion Binding. Chempluschem 2020; 85:1179-1189. [PMID: 32500597 DOI: 10.1002/cplu.202000307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/14/2020] [Indexed: 01/05/2023]
Abstract
The hetero-tetranuclear Cu2+ /Ca2+ /Ca2+ /Cu2+ complex obtained with the N,N'-bis((3-hydroxy-4-pyron-2-yl)methyl)-N,N'-dimethylethylendiamine (Malten) ligand has been studied in solid and solution states as scaffold to bind anions. Three crystal structures showing the same metal ions sequence have been examined; they display a tetracharged complex cation neutralized by four monocharged anions. The anions play two different roles: as coordinated (two ClO4 - , Cl- or NO3 - ) or ancillary (two ClO4 - ) guests. The tetranuclear scaffold hosts two anions also in aqueous and ethanol solutions. Spectrophotometric studies in ethanol allowed to determine the addition constant values for Cl- and Br- (Log K1-2 =4.43(4), 4.39(3) for Cl- , 3.80(3), 3.54(2) for Br- ) while the others, although bound, showed lower affinity for the scaffold. Both the crystals and the solutions change their color depending on the added anion, namely pink, dark green or blue in the presence of ClO4 - , Cl- or NO3 - , respectively, thus the presence of the different anions is visible to the naked eye. The hetero-tetranuclear Cu2+ /Ca2+ /Ca2+ /Cu2+ complex is a versatile architecture to be used as scaffold for anion binding.
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Affiliation(s)
- Patrizia Rossi
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, 50139, Florence, Italy
| | - Eleonora Macedi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Florence, Via S. Marta 3, 50139, Florence, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, University of Urbino "Carlo Bo", Via della Stazione 4, 61029, Urbino, Italy
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Götzke L, Schaper G, März J, Kaden P, Huittinen N, Stumpf T, Kammerlander KK, Brunner E, Hahn P, Mehnert A, Kersting B, Henle T, Lindoy LF, Zanoni G, Weigand JJ. Coordination chemistry of f-block metal ions with ligands bearing bio-relevant functional groups. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Sarr M, Diop M, Thiam EI, Gaye M, Barry AH, Orton JB, Coles SJ. A new co-crystal dinuclear/trinuclear Zn II-Zn II/Zn II-Sm III-Zn II complex with a salen-type Schiff base ligand. Acta Crystallogr E Crystallogr Commun 2018; 74:1862-1866. [PMID: 30574389 PMCID: PMC6281091 DOI: 10.1107/s2056989018016109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/14/2018] [Indexed: 12/02/2022]
Abstract
In the penta-nuclear title complex, [SmZn2(C22H18N2O4)2(NCS)2(C3H7NO)2][Zn2(C22H18N2O4)(NCS)3]·C3H7NO·0.32H2O, namely bis-{μ2-6,6'-dimeth-oxy-2,2'-[phenyl-ene-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato}-1κ4 O,N,N',O':2κ3 O,O',O 6;2κ3 O,O',O 6:3κ4 O,N,N',O'-bis-(di-methyl-formamide-2κO)di-thiocyanato-1κN,3κN-2-samarium(III)-1,3-dizinc(II) {μ2-6,6'-dimeth-oxy-2,2'-[phenyl-ene-1,2-diylbis(nitrilo-methanylyl-idene)]diphenolato-1κ4 O,N,N',O':2κ2 O,O'}trithio-cyan-ato-1κN;2κ2 N,N-dizinc(II) di-methyl-formamide monosolvate 1.32-hydrate, a dinuclear unit and a trinuclear unit co-exist. One of the ZnII centers in the dinuclear unit as well as the two ZnII centers in the trinuclear unit are located in the inner N2O2 cavity of the ligand and are coordinated to the nitro-gen atom of one thio-cyanate moiety, giving rise to a square-pyramidal geometry. The second ZnII center in the dinuclear unit is coordinated to the two phenolate oxygen atoms of the ligand and to two thio-cyanate groups via the nitro-gen atom in a tetra-hedral geometry. The SmIII ion is eight-coordinated by four phenolate O atoms from the two ligand mol-ecules, two meth-oxy O atoms from the two ligand mol-ecules and two O atoms from the DFM solvent mol-ecule. In the dinuclear unit, the two meth-oxy oxygen atoms remain uncoordinated while in the trinuclear unit, for each ligand one meth-oxy oxygen is coordinated and the other one remains uncoordinated. In the crystal, the trinuclear cationic units and dinuclear anionic units are assembled into infinite layers. These layers are held together via electrostatic inter-actions, forming a three-dimensional structure. In the dinuclear unit, the C and S atoms of one of the thio-cyanate groups are disordered over two sets of sites in a 0.680 (4)(4):0.320 (4) ratio.
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Affiliation(s)
- Mamour Sarr
- Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Mayoro Diop
- Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Elhadj Ibrahima Thiam
- Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Mohamed Gaye
- Département de Chimie, Faculté des Sciences et Techniques, Université Cheikh Anta Diop, Dakar, Senegal
| | - Aliou Hamady Barry
- Département de Chimie, Faculté des Sciences, Université de Nouakchott, Nouakchott, Mauritania
| | - James B. Orton
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ, UK
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Rossi P, Macedi E, Paoli P, Giorgi L, Formica M, Fusi V. Crystal structure of bis-{μ 2-2,2'-[(4,10-dimethyl-1,4,7,10-tetra-aza-cyclo-dodecane-1,7-di-yl)bis(meth-yl-ene)]bis-(4-oxo-4 H-pyran-3-olato)}dicobalt-calcium bis-(perchlorate) 1.36-hydrate. Acta Crystallogr E Crystallogr Commun 2017; 73:1959-1965. [PMID: 29250424 PMCID: PMC5730261 DOI: 10.1107/s2056989017016693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 11/20/2017] [Indexed: 11/28/2022]
Abstract
The title compound, [CaCo2(C22H30N4O6)2](ClO4)2·1.36H2O or {Ca[Co(H-2L1)]2}·2ClO4·1.36H2O {where L1 is 4,10-bis-[(3-hy-droxy-4-pyron-2-yl)meth-yl]-1,7-dimethyl-1,4,7,10-tetra-aza-cyclo-dodecane}, is a trinuclear complex whose asymmetric unit comprises a quarter of the {Ca[Co(H-2L1)]2}2+ trinuclear complex, half of a perchlorate ion and 0.34-water mol-ecules. In the neutral [Co(H-2L1)] moiety, the cobalt ion is hexa-coordinated in a trigonal-prismatic fashion by the surrounding N4O2 donor set. A Ca2+ cation holds together two neutral [Co(H-2L1)] moieties and is octa-coordinated in a distorted trigonal-dodeca-hedral fashion by the surrounding O atoms belonging to the deprotonated oxide and carbonyl groups of two [Co(H-2L1)] units. The coordination of the CoII cation preorganizes L1 and an electron-rich area forms, which is able to host hard metal ions. The comparison between the present structure and the previously published ones suggests a high versatility of this ligand; indeed, hard metal ions with different nature and dimensions lead to complexes having different stoichiometry (mono- and dinuclear monomers and trinuclear dimers) or even a polymeric structure. The heterotrinuclear CoII-CaII-CoII complexes are connected in three dimensions via weak C-H⋯O hydrogen bonds, which are also responsible for the inter-actions with the perchlorate anions and the lattice water mol-ecules. The perchlorate anion is disordered about a twofold rotation axis and was refined giving the two positions a fixed occupancy factor of 0.5. The crystal studied was refined as a two-component inversion twin [BASF parameter = 0.14 (4)].
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Affiliation(s)
- Patrizia Rossi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Eleonora Macedi
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Paola Paoli
- Department of Industrial Engineering, University of Firenze, via Santa Marta 3, I-50139 Firenze, Italy
| | - Luca Giorgi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Mauro Formica
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
| | - Vieri Fusi
- Department of Pure and Applied Sciences, Lab of Supramolecular Chemistry, University of Urbino, via della Stazione, 4, I-61029 Urbino, Italy
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