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Pellei M, Del Gobbo J, Caviglia M, Karade DV, Gandin V, Marzano C, Noonikara Poyil A, Dias HVR, Santini C. Synthesis and cytotoxicity studies of Cu(I) and Ag(I) complexes based on sterically hindered β-diketonates with different degrees of fluorination. Dalton Trans 2023; 52:12098-12111. [PMID: 37581477 DOI: 10.1039/d3dt02179c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Design, synthesis, and in vitro antitumor properties of Cu(I) and Ag(I) phosphane complexes supported by the anions of sterically hindered β-diketone ligands, 1,3-dimesitylpropane-1,3-dione (HLMes) and 1,3-bis(3,5-bis(trifluoromethyl)phenyl)-3-hydroxyprop-2-en-1-one (HLCF3) featuring trifluoromethyl or methyl groups on the phenyl moieties have been reported. In order to compare the biological effects of substituents on the phenyl moieties, the analogous copper(I) and silver(I) complexes of the anion of the parent 1,3-diphenylpropane-1,3-dione (HLPh) ligand were also synthesized and included in the study. In the syntheses of the Cu(I) and Ag(I) complexes, the phosphane coligands triphenylphosphine (PPh3) and 1,3,5-triaza-7-phosphaadamantane (PTA) were used to stabilize silver and copper in the +1 oxidation state, preventing the metal ion reduction to Ag(0) or oxidation to Cu(II), respectively. X-ray crystal structures of HLCF3 and the metal adducts [Cu(LCF3)(PPh3)2] and [Ag(LPh)(PPh3)2] are also presented. The antitumor properties of both classes of metal complexes were evaluated against a series of human tumor cell lines derived from different solid tumors, by means of both 2D and 3D cell viability studies. They display noteworthy antitumor properties and are more potent than cisplatin in inhibiting cancer cell growth.
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Affiliation(s)
- Maura Pellei
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Jo' Del Gobbo
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Miriam Caviglia
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
| | - Deepika V Karade
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Cristina Marzano
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Anurag Noonikara Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - H V Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Box 19065, Arlington, Texas 76019-0065, USA.
| | - Carlo Santini
- School of Science and Technology, Chemistry Division, University of Camerino, Via Madonna delle Carceri (ChIP), 62032 Camerino, Macerata, Italy.
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Structural Diversity of Silver Fluorinated β-Diketonates: Effect of the Terminal Substituent and Solvent. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030677. [PMID: 35163942 PMCID: PMC8839988 DOI: 10.3390/molecules27030677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 11/17/2022]
Abstract
In order to demonstrate the role of the fluorination and some solvents in the structural organization of the Ag(I) coordination polymers with β-diketonate ligands (R1C(O)CαHC(O)R2)− we synthesized a series of the compounds containing tfac- (R1 = CH3, R2 = CF3) and pfpac- (R1 = CH3, R2 = C2F5) anions. Solvent-free [Ag(L)]∞ (L = tfac 1, pfpac 2) compounds and the corresponding acetonitrile and toluene adducts have been characterized by elemental analysis and/or NMR, IR and single-crystal XRD. This series includes five new coordination polymers. Compound 1 is a 3D coordination framework based on Ag–Ochelate/bridge, Ag–Cα bonds, and argentophilic interactions. An increase in the fluorinated group leads to a chain coordination polymer 2 of an unusual structural organization. These chains can be represented as a “DNA-type”, where two intertwined helices based on Ag–Ochelate and Ag–Cα bonds are connected through Ag–Obridge ones. Two structural types of chain coordination polymers, [Ag(tfac)(CH3CN)] and [Ag2(L)2(solvent)], have been revealed for the adducts. The latter structural type differs significantly from the previously studied toluene and acetonitrile adducts of fluorinated Ag(I) β-diketonates of the same stoichiometry. Thermal analysis in helium showed that both 1 and 2 decompose to metallic silver with the compound of pfpac-ligand being slightly more stable.
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Gulyaev SA, Vikulova ES, Sukhikh TS, Ilyin IY, Morozova NB. STRUCTURES AND THERMAL PROPERTIES OF SILVER(I) β-DIKETONATES WITH BULKY TERMINAL SUBSTITUENTS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621120039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Peddagopu N, Sanzaro S, Rossi P, Paoli P, Malandrino G. A One‐Pot Synthesis of “K(hfa) glyme” Adducts: Effect of the Polyether Length on the Ion Coordination Sphere. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nishant Peddagopu
- Dipartimento di Scienze Chimiche Università di Catania and INSTM UdR Catania V.le Andrea Doria 6 95125 Catania Italy
| | - Salvatore Sanzaro
- Dipartimento di Scienze Chimiche Università di Catania and INSTM UdR Catania V.le Andrea Doria 6 95125 Catania Italy
- STMicroelectronics Zona Industriale Stradale Primosole, No. 50 95121 Catania Italy
| | - Patrizia Rossi
- Dipartimento di Ingegneria Industriale Università di Firenze Via Santa Marta 3 50136 Firenze Italy
| | - Paola Paoli
- Dipartimento di Ingegneria Industriale Università di Firenze Via Santa Marta 3 50136 Firenze Italy
| | - Graziella Malandrino
- Dipartimento di Scienze Chimiche Università di Catania and INSTM UdR Catania V.le Andrea Doria 6 95125 Catania Italy
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Peddagopu N, Rossi P, Bonaccorso C, Bartasyte A, Paoli P, Malandrino G. Facile synthesis of novel lithium β-diketonate glyme adducts: the effect of molecular engineering on the thermal properties. Dalton Trans 2020; 49:1002-1006. [PMID: 31932829 DOI: 10.1039/c9dt04732h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Novel adducts of lithium hexafluoroacetylacetonato {Li(hfa)} with polyethers (monoglyme = {CH3OCH2CH2OCH3}, diglyme = {CH3O(CH2CH2O)2CH3}, triglyme = {CH3O(CH2CH2O)3CH3} and tetraglyme {CH3O(CH2CH2O)4CH3} have been synthesized through a single step reaction and characterized by FT-IR spectroscopy, 1H, and 13C NMR, single crystal X-ray diffraction studies along with thermal analysis.
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Affiliation(s)
- Nishant Peddagopu
- Dipartimento di Scienze Chimiche, Università di Catania and INSTM UdR Catania, V.le Andrea Doria 6, 95125 Catania, Italy.
| | - Patrizia Rossi
- Dipartimento di Ingegneria Industriale, Università di Firenze, Via Santa Marta 3, 50136 Firenze, Italy
| | - Carmela Bonaccorso
- Dipartimento di Scienze Chimiche, Università di Catania, V.le Andrea Doria 6, 95125 Catania, Italy
| | - Ausrine Bartasyte
- FEMTO-ST Institute, University of Bourgogne Franche-Comté CNRS UMR 6174, 26 Rue de l'Epitaphe, F-25030 Besançon, France
| | - Paola Paoli
- Dipartimento di Ingegneria Industriale, Università di Firenze, Via Santa Marta 3, 50136 Firenze, Italy
| | - Graziella Malandrino
- Dipartimento di Scienze Chimiche, Università di Catania and INSTM UdR Catania, V.le Andrea Doria 6, 95125 Catania, Italy.
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