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Diana R, Gentile FS, Carella A, Di Costanzo L, Panunzi B. Insights into Two Novel Orthopalladated Chromophores with Antimicrobial Activity against Escherichia coli. Molecules 2022; 27:molecules27186060. [PMID: 36144794 PMCID: PMC9504776 DOI: 10.3390/molecules27186060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/05/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Advanced chromophoric tools, besides being biologically active, need to meet the expectations of the technological demands including stability, colour retention, and proper solubility for their target. Many coordination compounds of conjugated ligands are antibacterial dyes, able to combine a strong dyeing performance with a useful biological activity. Specifically, palladium (II) complexes of Schiff base ligands are known for their relevant activity against common bacteria. In this article, we report the synthesis and comprehensive experimental and theoretical characterization of two novel Pd(II) chromophore complexes obtained from a cyclopalladated Schiff base as two different chelating azo dyes. The antibacterial response of these two novel complexes was tested against the ubiquitous Escherichia coli bacterium in an aqueous medium and revealed a noteworthy antimicrobial activity, higher than when compared with their uncoordinated biologically active ligands.
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Affiliation(s)
- Rosita Diana
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy
| | - Francesco Silvio Gentile
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Antonio Carella
- Department of Chemical Sciences, University of Napoli Federico II, Strada Comunale Cinthia, 26, 80126 Napoli, Italy
| | - Luigi Di Costanzo
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy
| | - Barbara Panunzi
- Department of Agricultural Sciences, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy
- Correspondence:
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Diana R, Caruso U, Gentile FS, Di Costanzo L, Musto P, Panunzi B. Thermo-Induced Fluorochromism in Two AIE Zinc Complexes: A Deep Insight into the Structure-Property Relationship. Molecules 2022; 27:molecules27082551. [PMID: 35458748 PMCID: PMC9025698 DOI: 10.3390/molecules27082551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/04/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Abstract
Solid-state emitters exhibiting mechano-fluorochromic or thermo-fluorochromic responses represent the foundation of smart tools for novel technological applications. Among fluorochromic (FC) materials, solid-state emissive coordination complexes offer a variety of fluorescence responses related to the dynamic of noncovalent metal-ligand coordination bonds. Relevant FC behaviour can result from the targeted choice of metal cation and ligands. Herein, we report the synthesis and characterization of two different colour emitters consisting of zinc complexes obtained from N,O bidentate ligands with different electron-withdrawing substituents. The two complexes are blue and orange solid-state fluorophores, respectively, highly responsive to thermal and mechanical stress. These emitters show a very different photoluminescent (PL) pattern as recorded before and after the annealing treatment. Through X-ray structural analysis combined with thermal analysis, infrared (IR) spectroscopy, PL, and DFT simulation we provide a comprehensive analysis of the structural feature involved in the fluorochromic response. Notably, we were able to correlate the on-off thermo-fluorochromism of the complexes with the structural rearrangement at the zinc coordination core.
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Affiliation(s)
- Rosita Diana
- Department of Agriculture, University of Napoli Federico II, Via Università, 100, 80055 Portici, NA, Italy; (R.D.); (L.D.C.)
| | - Ugo Caruso
- Department of Chemical Sciences, University of Napoli Federico II, Strada Comunale Cinthia, 26, 80126 Napoli, Italy; (U.C.); (F.S.G.)
| | - Francesco Silvio Gentile
- Department of Chemical Sciences, University of Napoli Federico II, Strada Comunale Cinthia, 26, 80126 Napoli, Italy; (U.C.); (F.S.G.)
| | - Luigi Di Costanzo
- Department of Agriculture, University of Napoli Federico II, Via Università, 100, 80055 Portici, NA, Italy; (R.D.); (L.D.C.)
| | - Pellegrino Musto
- Institute on Polymers Composites and Biomaterials, National Research Council, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy;
| | - Barbara Panunzi
- Department of Agriculture, University of Napoli Federico II, Via Università, 100, 80055 Portici, NA, Italy; (R.D.); (L.D.C.)
- Correspondence:
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Diana R, Caruso U, Piotto S, Concilio S, Shikler R, Panunzi B. Spectroscopic Behaviour of Two Novel Azobenzene Fluorescent Dyes and Their Polymeric Blends. Molecules 2020; 25:molecules25061368. [PMID: 32192178 PMCID: PMC7144390 DOI: 10.3390/molecules25061368] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 11/22/2022] Open
Abstract
Two novel symmetrical bis-azobenzene red dyes ending with electron-withdrawing or donor groups were synthesized. Both chromophores display good solubility, excellent chemical, and thermal stability. The two dyes are fluorescent in solution and in the solid-state. The spectroscopic properties of the neat crystalline solids were compared with those of doped blends of different amorphous matrixes. Blends of non-conductive and of emissive and conductive host polymers were formed to evaluate the potential of the azo dyes as pigments and as fluorophores. Both in absorbance and emission, the doped thin layers have CIE coordinates in the spectral region from yellow to red. The fluorescence quantum yield measured for the brightest emissive blend reaches 57%, a remarkable performance for a steadily fluorescent azo dye. A DFT approach was employed to examine the frontier orbitals of the two dyes.
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Affiliation(s)
- Rosita Diana
- Department of Agriculture, University of Napoli Federico II, NA 80055 Portici, Italy; (R.D.); (B.P.)
| | - Ugo Caruso
- Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy
- Correspondence: ; Tel.: +39-081-674366
| | - Stefano Piotto
- Department of Pharmacy, University of Salerno, SA 84084 Fisciano, Italy;
| | - Simona Concilio
- Department of Industrial Engineering, University of Salerno, SA 84084 Fisciano, Italy;
| | - Rafi Shikler
- Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, POB 653 Beer-Sheva 84105, Israel;
| | - Barbara Panunzi
- Department of Agriculture, University of Napoli Federico II, NA 80055 Portici, Italy; (R.D.); (B.P.)
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Panunzi B, Concilio S, Diana R, Shikler R, Nabha S, Piotto S, Sessa L, Tuzi A, Caruso U. Photophysical Properties of Luminescent Zinc(II)-Pyridinyloxadiazole Complexes and their Glassy Self-Assembly Networks. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800344] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Barbara Panunzi
- Department of Agriculture; University of Napoli Federico II; Via Università 100 80055 Portici NA Italy
| | - Simona Concilio
- Department of Industrial Engineering; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano SA Italy
| | - Rosita Diana
- Department of Chemical Sciences; University of Napoli Federico II; Via Cintia 80126 Napoli Italy
| | - Rafi Shikler
- Department of Electrical and Computer Engineering; Ben-Gurion University of the Negev; POB 653 84105 Beer-Sheva Israel
| | - Shiran Nabha
- Department of Electrical and Computer Engineering; Ben-Gurion University of the Negev; POB 653 84105 Beer-Sheva Israel
| | - Stefano Piotto
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano SA Italy
| | - Lucia Sessa
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano SA Italy
| | - Angela Tuzi
- Department of Chemical Sciences; University of Napoli Federico II; Via Cintia 80126 Napoli Italy
| | - Ugo Caruso
- Department of Chemical Sciences; University of Napoli Federico II; Via Cintia 80126 Napoli Italy
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Yi L, Huang W, Yan D. Polyimides with side groups: Synthesis and effects of side groups on their properties. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28409] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lang Yi
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University, 800 Dongchuan Road; Shanghai 200240 People's Republic of China
| | - Wei Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University, 800 Dongchuan Road; Shanghai 200240 People's Republic of China
| | - Deyue Yan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University, 800 Dongchuan Road; Shanghai 200240 People's Republic of China
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Lal S, Quamara JK. Dielectric Spectroscopy of Pristine and O7+Ion Irradiated NCO-Terminated Polybutadiene-Based Liquid Crystalline Polyurethane. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sohan Lal
- Department of Physics; National Institute of Technology; Kurukshetra 136 119 India
| | - Jitendra K. Quamara
- Department of Physics; National Institute of Technology; Kurukshetra 136 119 India
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Guo Z, Guo L, Chen H. Synthesis of Y-type Polyurethanes Containing Novel NLO Chromophore. Polycycl Aromat Compd 2014. [DOI: 10.1080/10406638.2013.839456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shevchenko VV, Sidorenko AV, Bliznyuk VN, Tkachenko IM, Shekera OV. Azo-containing polyurethanes with nonlinear-optical properties. POLYMER SCIENCE SERIES A 2013. [DOI: 10.1134/s0965545x12100045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhou T, Deng G, Liu J, Bo S, Wu J, Qiu L, Liu X, Zhen Z. Synthesis and nonlinear optical properties of novel y-type polyurethanes containing different concentrations of chromophore. J Appl Polym Sci 2012. [DOI: 10.1002/app.38283] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tambe SM, Tasaganva RG, Inamdar SR, Kariduraganavar MY. Synthesis and characterization of nonlinear optical side-chain polyimides containing the thiadiazole chromophores. J Appl Polym Sci 2011. [DOI: 10.1002/app.34238] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kim MH, Hoang MH, Choi DH, Cho MJ, Ju HK, Kim DW, Lee CJ. Electro-optic effect of a soluble nonlinear optical polyimide containing two different chromophores with different sizes in the side chain. Macromol Res 2011. [DOI: 10.1007/s13233-011-0410-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhang X, Li M, Shi Z, Wan Y, Zhao L, Jin R, Wang X, Zhang D, Yi M, Cui Z. Design, Synthesis, and Characterization of Crosslinkable Doped NLO Materials Based on Polyurethanes Containing Spindle-Type Chromophores. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201000626] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tambe SM, Tasaganva RG, Jogul JJ, Castiglione DC, Kariduraganavar MY. Development of polyurethanes with azo-type chromophores for second-order nonlinear optical applications. J Appl Polym Sci 2009. [DOI: 10.1002/app.30657] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lee JY, Jung WT, Lee WJ. Molecular design, synthesis, and electro-optic properties of novel Y-type polyesters with high thermal stability of second harmonic generation. POLYM INT 2006. [DOI: 10.1002/pi.1965] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lee SK, Cho MJ, Jin JI, Choi DH. Stability control of the electrooptic effect with new maleimide copolymers containing photoreactive tricyanopyrrolidene-based chromophores. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21887] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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