1
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Xu F, Zhang D, Lu Q, Zhang R, Xia J. Rational design of fluorescent chemosensor for Pd 2+ based on the formation of cyclopalladated complex. Talanta 2023; 253:123967. [PMID: 36195028 DOI: 10.1016/j.talanta.2022.123967] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 12/13/2022]
Abstract
According to the assumption that the formation of C-Pd bond becomes a cyclopalladated complex (CPC), we designed and synthesized two C-N-N pincer ligands of BODIPY appended 2,2'-bipyridine derivatives (BP and BPB). It has been confirmed that the C-Pd bond does exist and plays a crucial role in "on-off" fluorescence behavior. Based on it, a coordination-induced fluorescence quenching sensor for Pd2+ was constructed. The results indicated that BP possessed high sensitivity and specificity for Pd2+ in solution. The limit of detection (LOD) of BP is determined to be 0.97 nM within a linear range between 1.0 and 50.0 nM, meanwhile, the platinum-group ions demonstrate no interference. The bio-imaging application of BP was investigated and it exhibited a promising vitro test for fluorescent imaging of Pd2+ ions in MCF-7 cells. Meanwhile, BPB coated sensor label for Pd2+ was set up. The visible color variation was displayed under UV light with increasing concentrations of Pd2+. Briefly speaking, fluorescence probes of BP and BPB offer new approaches for Pd2+ detection in a lab and on-site test, as well as the vivo imaging. Then, with the aid of (TD)DFT calculation, the internal reason for the optical difference between the two ligands was disclosed. This concept of CPC containing a Pd-C covalent bond provides a promising perspective of coordination fluorescence sensors.
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Affiliation(s)
- Feng Xu
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Dongkui Zhang
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Qingyi Lu
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China
| | - Rui Zhang
- School of Chemical Engineering and Pharmacy, Wuhan Instituted and Technology, Wuhan, 400073, Hubei, China
| | - Jiangbin Xia
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei, China; Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, 430072, Hubei, China.
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2
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Nguyen LTB, Wu CL, Lin TC, Abe M. Tris(4'-Nitrobiphenyl)amine─An Octupolar Chromophore with High Two-Photon Absorption Cross-Section and Its Application for Uncaging of Calcium Ions in the Near-Infrared Region. J Org Chem 2022; 87:15888-15898. [PMID: 36356056 DOI: 10.1021/acs.joc.2c01987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Compounds with high two-photon absorption (2PA) performance in the near-infrared region have attracted great attention because of their application in the material and biological science. In this study, we have developed a simple and novel octupolar chromophore, tris(4'-nitrobiphenyl)amine 1, with three nitro peripheral groups attached to a triphenylamine core via biphenyl linkers. A mono-branched analogue 2 has also been prepared to investigate the effects of octupolar and dipolar systems on photophysical and 2PA behaviors. Compound 1, despite having a much simpler structure than the previous three-branched scaffolds, exhibits comparable σ2 values, reaching 1330 GM at 730 nm and 900 GM at 820 nm in toluene. Combined with an outstanding σ2/MW ratio (2.2 GM g-1 mol) and a high fluorescence quantum yield (0.51), 1 displays potential as a promising two-photon (2P) probe for bioimaging. Subsequently, the ethylene glycol tetraacetic acid-substituted derivatives featuring octupolar (3 and 5) or dipolar (4 and 6) character have been synthesized and their one-photon (1P) and 2P photochemical reactions have been examined. Finally, 1P- and 2P-triggered uncaging of Ca2+ from these calcium chelators has been confirmed.
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Affiliation(s)
- Linh Tran Bao Nguyen
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima739-8526, Japan
| | - Cheng-Lin Wu
- Photonic Materials Research Laboratory, Department of Chemistry, National Central University, Jhong-Li District, Taoyuan City32001, Taiwan
| | - Tzu-Chau Lin
- Photonic Materials Research Laboratory, Department of Chemistry, National Central University, Jhong-Li District, Taoyuan City32001, Taiwan.,NCU-Covestro Research Center, National Central University, Jhong-Li District, Taoyuan City32001, Taiwan
| | - Manabu Abe
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima739-8526, Japan.,Hiroshima University Research Center for Photo-Drug-Delivery Systems (HiU-P-DDS), Hiroshima University, Higashi-Hiroshima, Hiroshima739-8526, Japan
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3
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Ionescu A, Godbert N, Termine R, La Deda M, Amati M, Lelj F, Crispini A, Golemme A, Ghedini M, Garcia-Orduña P, Aiello I. Photoconductive Properties and Electronic Structure in 3,5-Disubstituted 2-(2'-Pyridyl)Pyrroles Coordinated to a Pd(II) Salicylideneiminate Synthon. Inorg Chem 2021; 60:9287-9301. [PMID: 34126007 PMCID: PMC8277164 DOI: 10.1021/acs.inorgchem.0c02991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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The synthesis and the electrochemical, photophysical, structural,
and photoconductive properties of three new heteroleptic Pd(II) complexes
with various 3′,5′- disubstituted-2-(2′-pyridil)
pyrroles H(N^N) as coordinated ligands are reported. The coordination
of the metal center was completed by a functionalized Schiff base
H(O^N) used as an ancillary ligand. The [(N^N)Pd(O^N)] complexes showed
highly interesting photoconductive properties which have been correlated
to their electronic and molecular structures. Theoretical density
functional theory (DFT) and time-dependent DFT calculations were performed,
and the results were confronted with the organization in crystalline
phase, allowing to point out that the photoconductive properties are
mainly a consequence of an efficient intramolecular ligand-to-metal
charge transfer, combined to the proximity between the central metal
and the donor moieties in the solid-state molecular stacks. The reported
results confirm that these new Pd(II) complexes form a novel class
of organometallic photoconductors with intrinsic characteristics suitable
for molecular semiconductors applications. The first evidence of enhancement of the role of d* orbitals
in improving photoconduction in crystalline Pd(II) complexes comprising
2-(2′-pyridyl)pyrroles.
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Affiliation(s)
- Andreea Ionescu
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy
| | - Nicolas Godbert
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Roberto Termine
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy
| | - Massimo La Deda
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy
| | - Mario Amati
- Dipartimento di Scienze and LASCAMM-CR INSTM, Unità INSTM della Basilicata, Università della Basilicata, 85100 Potenza, Italy
| | - Francesco Lelj
- Dipartimento di Scienze and LASCAMM-CR INSTM, Unità INSTM della Basilicata, Università della Basilicata, 85100 Potenza, Italy
| | - Alessandra Crispini
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Attilio Golemme
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy.,Dipartimento di Fisica, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Mauro Ghedini
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy
| | - Pilar Garcia-Orduña
- Instituto de Síntesis Química y Catálisis Homogénea, Universidad de Zaragoza-CSIC, Pza. San Francisco s/n, Zaragoza 50009, Spain
| | - Iolinda Aiello
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036 Arcavacata di Rende (CS), Italy
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4
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Zhang Q, Shu J, Zhang Y, Xu Z, Yue J, Liu X, Xu B, Chen Z, Jiang W. Structures and esterolytic reactivity of novel binuclear copper(ii) complexes with reduced l-serine Schiff bases as mimic carboxylesterases. Dalton Trans 2020; 49:10261-10269. [PMID: 32672259 DOI: 10.1039/d0dt01823f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three novel binuclear copper(ii) complexes with reduced l-serine Schiff bases were synthesized and their structures were analyzed with single-crystal X-ray diffraction and DFT calculations. The crystal data revealed that all of these binuclear complexes are chiral. Both 5-halogenated (bromo- and chloro-) binuclear complexes exhibit right-handed helix structural character. Interestingly, the 5-methyl-containing analogue has a two-dimensional pore structure. In this paper, the esterolysis reactivity of the as-prepared complexes shows that in the hydrolysis of p-nitrophenyl acetate (PNPA) these three complexes provide 26, 18, 40-fold rate acceleration as compared to the spontaneous hydrolysis of PNPA at pH 7.0, respectively. Under selected conditions, in excess buffered aqueous solution a rate enhancement by three orders of magnitude was observed for the catalytic hydrolysis of another carboxylic ester, p-nitrophenyl picolinate (PNPP). These complexes efficiently promoted PNPP hydrolysis in a micellar solution of cetyltrimethylammonium bromide (CTAB), giving rise to a rate enhancement in excess of four orders of magnitude, which is approximately 2.0-3.2 times higher than that in the buffer.
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Affiliation(s)
- Qin Zhang
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Sichuan Zigong 643000, P. R. China.
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5
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Pintus A, Ambrosio L, Aragoni MC, Binda M, Coles SJ, Hursthouse MB, Isaia F, Lippolis V, Meloni G, Natali D, Orton JB, Podda E, Sampietro M, Arca M. Photoconducting Devices with Response in the Visible-Near-Infrared Region Based on Neutral Ni Complexes of Aryl-1,2-dithiolene Ligands. Inorg Chem 2020; 59:6410-6421. [PMID: 32302124 DOI: 10.1021/acs.inorgchem.0c00491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Metal bis(1,2-dithiolene) complexes belonging to the class [Ni(Ar-edt)2]x- [Ar-edt2- = arylethylene-1,2-dithiolate; Ar = phenyl, (1x-), 2-naphthyl (2x-); x = 0 and 1] were fully characterized by NMR, UV-visible-near-infrared (UV-vis-NIR), diffuse reflectance, and FT-IR spectroscopy, as well as cyclic voltammetry and single-crystal X-ray diffraction analysis. These complexes have emerged as new photoconducting materials that allowed for the development of a prototype of photodetectors with response in the vis-NIR region. The photodetecting devices showed in some cases quantum efficiencies orders of magnitude higher than those of previously reported 1,2-dithiolene systems.
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Affiliation(s)
- Anna Pintus
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Lucia Ambrosio
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - M Carla Aragoni
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Maddalena Binda
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Simon J Coles
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Michael B Hursthouse
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Francesco Isaia
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Vito Lippolis
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Giammarco Meloni
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Dario Natali
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy.,Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - James B Orton
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom
| | - Enrico Podda
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
| | - Marco Sampietro
- Center for Nano Science and Technology @Polimi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy.,Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, Via Ponzio 34/5, 20133 Milano, Italy
| | - Massimiliano Arca
- Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, S.S. 554 bivio per Sestu, 09042 Monserrato (Cagliari), Italy
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6
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Yin H, Yang T, Wang KZ, Tong J, Yu SY. Unusual Photoelectrochemical Properties of Electropolymerized Films of a Triphenylamine-Containing Organic Small Molecule. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12620-12629. [PMID: 31500421 DOI: 10.1021/acs.langmuir.9b01578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The electropolymerized films of poly(L)n on an indium-tin oxide (ITO) electrode was prepared by anodic electrooxidation of a dichloromethane solution of a triphenylamine-carrying organic molecule L and were characterized/studied by ultraviolet-visible absorption spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, electrochemical impedance spectroscopy, cyclic voltammetry, and photoelectrochemical measurements. Poly(L)n films were found to show surface-controlled TPA•+1/0 associated quasi-reversible redox and exceptionally high photocurrent generation properties. At a zero external bias potential and under 100 mW/cm2 white light irradiation, a photoelectrochemical device composed of a poly(L)1-modified ITO as the working electode, a platinum disk counter electrode, and saturated calomel electrode reference electrode in a 0.1 M Na2SO4 aqueous solution exhibited a significant cathode photocurrent density of 2.2 μA/cm2, which could be switched to be anodic and outperform most previously reported molecule-based modified ITO electrodes under similar experimental conditions. The results indicate that poly(L)n films offer a number of future perspectives ranging from organic photovoltaic to photoelectrochemical catalysis and sensing.
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Affiliation(s)
- Hong Yin
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Tong Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Ke-Zhi Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry , Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Jin Tong
- Beijing Key Laboratory for Green Catalysis and Separation, Laboratory for Self-Assembly Chemistry, Department of Chemistry and Chemical Industry, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , People's Republic of China
| | - Shu-Yan Yu
- Beijing Key Laboratory for Green Catalysis and Separation, Laboratory for Self-Assembly Chemistry, Department of Chemistry and Chemical Industry, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , People's Republic of China
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7
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Ionescu A, Caligiuri R, Godbert N, Candreva A, La Deda M, Furia E, Ghedini M, Aiello I. Electropolymerizable Ir III Complexes with β-Ketoiminate Ancillary Ligands. Chem Asian J 2019; 14:3025-3034. [PMID: 31291044 DOI: 10.1002/asia.201900521] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Indexed: 01/01/2023]
Abstract
A series of electropolymerizable cyclometallated IrIII complexes were synthesized and their electrochemical and photophysical properties studied. The triphenylamine electropolymerizable fragment was introduced by using triphenylamine-2-phenylpyridine and, respectively, triphenylamine-benzothiazole as cyclometalated ligands. The coordination sphere was completed by two differently substituted β-ketoiminate ligands deriving from the condensation of acetylacetone or hexafluoroacetylacetone with para-bromoaniline. The influence of the -CH3 /-CF3 substitution to the electrochemical and photophysical properties was investigated. Both complexes with CH3 substituted β-ketoiminate were emissive in solution and in solid state. Highly stable films were electrodeposited onto ITO coated glass substrates. Their emission was quenched by electron trapping within the polymeric network as proven by electrochemical studies. The -CF3 substitution of the β-ketoiminate leads instead to the quenching of the emission and inhibits electropolymerization.
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Affiliation(s)
- Andreea Ionescu
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Rossella Caligiuri
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy
| | - Nicolas Godbert
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Angela Candreva
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy
| | - Massimo La Deda
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Emilia Furia
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, Cubo 12/D, 87036, Arcavacata di Rende (CS), Italy
| | - Mauro Ghedini
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Iolinda Aiello
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM-CR INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di, Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
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8
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Banasz R, Wałęsa-Chorab M. Polymeric complexes of transition metal ions as electrochromic materials: Synthesis and properties. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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9
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Shao JY, Zhong YW. Stabilization of a Cyclometalated Ruthenium Sensitizer on Nanocrystalline TiO 2 by an Electrodeposited Covalent Layer. Inorg Chem 2019; 58:3509-3517. [PMID: 30758195 DOI: 10.1021/acs.inorgchem.9b00092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A cyclometalated ruthenium sensitizer 3 containing a triphenylamine unit was synthesized and immobilized on a nanocrystalline TiO2 surface. By using oxidative electrochemical deposition, a covalent layer of a related cyclometalated ruthenium complex 2 was coupled to the top of dye 3. Electrochemical studies suggested that complex 2 was immobilized on the TiO2/3 film surface by a tetraphenylbenzidine linker to form a dimer-like structure. The immobilization of 3 and 2 was further supported by absorption spectral analysis. The resulting electrodeposited TiO2/(3+2) film displays significantly enhanced sensitizer stabilization toward basic aqueous NaOH solution with respect to the original TiO2/3 film. The dye-sensitized solar cells with the TiO2/(3+2) photoanode display a power conversion efficiency of 4.4%, which is slightly inferior to that with the TiO2/3 film (5.1%) under the same measurement conditions.
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Affiliation(s)
- Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
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10
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Ionescu A, Godbert N, Aiello I, Ricciardi L, La Deda M, Crispini A, Sicilia E, Ghedini M. Anionic cyclometalated Pt(ii) and Pt(iv) complexes respectively bearing one or two 1,2-benzenedithiolate ligands. Dalton Trans 2018; 47:11645-11657. [PMID: 30095835 DOI: 10.1039/c8dt02444h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel anionic cyclometalated Pt(ii) square-planar complexes NBu4[(C^N)PtII(S^S)], containing 2-phenylpyridine H(PhPy), 2-(2,4-difluorophenyl)-pyridine H(F2PhPy) and benzo[h]quinoline H(Bzq), respectively, as a cyclometalated ligand and the dianionic 1,2-benzenedithiolate (Thio)2- fragment as an (S^S) ligand, were synthesised. By the simple addition of an equivalent of (Thio)2- to the NBu4[(C^N)PtII(Thio)] complexes, octahedral anionic NBu4[(C^N)PtIV(Thio)2] analogues were obtained, representing, to the best of our knowledge, the first examples of Pt(iv) anionic cyclometalated complexes. The molecular structures of the obtained complexes in the case of the NBu4[(Bzq)PtII(Thio)] and the NBu4[(Bzq)PtIV(Thio)2] complexes were confirmed by single crystal X-ray diffraction analysis. Furthermore, the electrochemical and photophysical properties of the two series of Pt(ii) and Pt(iv) newly synthesised complexes were studied and DFT and TD-DFT calculations were performed in order to comprehensively investigate the displayed behaviour. All Pt(ii) and Pt(iv) complexes show intense luminescence in the solid state, with remarkable enhancement of the emission quantum yields, proving to be excellent examples of aggregation-induced emission systems.
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Affiliation(s)
- Andreea Ionescu
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, I-87036 Arcavacata di Rende, CS, Italy.
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11
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Çakmak D, Çakran S, Yalçinkaya S, Demetgül C. Synthesis of salen-type Schiff base metal complexes, electropolymerization on graphite electrode surface and investigation of electrocatalytic effects. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.11.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Maddala S, Mallick S, Venkatakrishnan P. Metal-Free Oxidative C–C Coupling of Arylamines Using a Quinone-Based Organic Oxidant. J Org Chem 2017; 82:8958-8972. [DOI: 10.1021/acs.joc.7b01377] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sudhakar Maddala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Sudesh Mallick
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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13
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Li ZJ, Shao JY, Zhong YW. Near-Infrared and Two-Wavelength Electrochromism Based on Nanocrystalline TiO2 Films Functionalized with Ruthenium-Amine Conjugated Complexes. Inorg Chem 2017; 56:8538-8546. [PMID: 28654287 DOI: 10.1021/acs.inorgchem.7b01297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhi-Juan Li
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
- University of Chinese Academy of Science, Beijing 100049, China
| | - Jiang-Yang Shao
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
- University of Chinese Academy of Science, Beijing 100049, China
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14
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Ricciardi L, La Deda M, Ionescu A, Godbert N, Aiello I, Ghedini M. Anionic cyclometallated Pt(ii) square-planar complexes: new sets of highly luminescent compounds. Dalton Trans 2017; 46:12625-12635. [DOI: 10.1039/c7dt02267k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Novel anionic Pt(ii) complexes were synthesized, displaying an outstanding enhancement of the emission efficiency in the solid state.
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Affiliation(s)
- Loredana Ricciardi
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
| | - Massimo La Deda
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici)
- Centro di Eccellenza CEMIF.CAL
| | - Andreea Ionescu
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici)
- Centro di Eccellenza CEMIF.CAL
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
| | - Nicolas Godbert
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici)
- Centro di Eccellenza CEMIF.CAL
| | - Iolinda Aiello
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici)
- Centro di Eccellenza CEMIF.CAL
| | - Mauro Ghedini
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici)
- Centro di Eccellenza CEMIF.CAL
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15
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Ionescu A, Aiello I, La Deda M, Crispini A, Ghedini M, De Santo MP, Godbert N. Near-IR Electrochromism in Electrodeposited Thin Films of Cyclometalated Complexes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12272-12281. [PMID: 27115248 DOI: 10.1021/acsami.6b01167] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Homogeneous thin films of controlled thickness obtained from cyclometalated complexes of general formula [(C(∧)N)M(O(∧)N)], where M = Pd(II) or Pt(II), H(C(∧)N) = 2-phenylpyridine and, respectively, 2-thienylpyridine and H(O(∧)N) = a triphenylamine functionalized Schiff base, have been deposited by oxidative electropolymerization. The films have been electrochemically and morphologically characterized. The metallopolymeric thin films present stable reversible redox behavior and typical cauliflower-like textures in agreement with a nucleation-growth electropolymerization mechanism. However, the film growth is greatly influenced by the nature of the metal center, with a higher tendency of the Pt complexes to promote the 3D growth. Furthermore, a complete spectroelectrochemical study has been performed on electrodeposited films showing near-IR absorption in the oxidized state, high contrast ratios (up to 65%) and low response times.
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Affiliation(s)
- Andreea Ionescu
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
| | - Iolinda Aiello
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
| | - Massimo La Deda
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
- CNR Nanotec - Istituto di Nanotecnologia U.O.S. Cosenza- Università della Calabria , I-87036 Rende, Cosenza, Italy
| | - Alessandra Crispini
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
- CNR Nanotec - Istituto di Nanotecnologia U.O.S. Cosenza- Università della Calabria , I-87036 Rende, Cosenza, Italy
| | - Mauro Ghedini
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
- CNR Nanotec - Istituto di Nanotecnologia U.O.S. Cosenza- Università della Calabria , I-87036 Rende, Cosenza, Italy
| | - Maria Penelope De Santo
- CNR Nanotec - Istituto di Nanotecnologia U.O.S. Cosenza- Università della Calabria , I-87036 Rende, Cosenza, Italy
- Dipartimento di Fisica- Università della Calabria , I-87036 Rende, Cosenza, Italy
| | - Nicolas Godbert
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccellenza CEMIF.CAL, LASCAMM CR-INSTM, Unità INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria , I-87036 Arcavacata di Rende, Cosenza, Italy
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16
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Abstract
Novel electropolymerizable Ir(III) cyclometallated complexes have been synthesized and characterized. In these complexes the cyclometallated ligands are either 2-phenylpyridineH(PhPy) or benzothiazole-triphenylamineH(BzTh-tpa), while the Ir(III) coordination sphere is completed by a Schiff base substituted with a triphenylamine fragment. A complete electrochemical study has been conducted on all complexes, in order to verify the feasibility of electropolymerization and to elucidate the role of the specific position of the triphenylamine moiety in the molecular structure. Homogeneous thin films of Ir(III) metallopolymers have been successfully obtained through electropolymerization process.
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