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Ahmed T, Chakraborty A, Baitalik S. Terpyridyl-Imidazole Based Ligand Coordinated to Ln(Hexafluoroacetyl acetonate) 3 Core: Synthesis, Structural Characterization, Luminescence Properties, and Thermosensing Behaviors in Solution and PMMA Film. Inorg Chem 2024; 63:11279-11295. [PMID: 38822820 DOI: 10.1021/acs.inorgchem.4c01132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
A new array of ternary lanthanide complexes of the form [Ln(hfa)3(tpy-HImzphen)] have been synthesized and thoroughly characterized wherein Ln = LaIII (1), EuIII (2), SmIII (3), and TbIII (4); hfa = hexafluoroacetylacetonate; and tpy-HImzphen = 2-(4-[2,2':6',2″]terpyridin-4'-yl-phenyl)-1H-phenanthro[9,10-d]imidazole. Incorporation of tpy-HImzphen onto the Ln-hfa moiety induced a bathochromic shift of the absorption window of the complexes into the visible region. Extensive investigations of the luminescence characteristics have been conducted both at RT and at 77 K to understand the deactivation pathways of the complexes. Both steady-state and time-resolved emission spectral behaviors indicate four distinctive behaviors upon incorporation of tpy-HImzphen onto the lanthanide core, viz., a huge red-shift of the ligand-centered peak for LaIII; almost complete energy transfer for EuIII; very little energy transfer for SmIII, while reverse energy transfer in the case of TbIII. In addition, the EuIII-complex exhibits its excellence in luminescence thermometry in the solution state as well as in poly(methyl methacrylate) (PMMA) thin films. The thermosensitive luminescence response in solution was further utilized to mimic set-reset flip-flop logic operation. A plausible energy transfer scheme has been devised to explain dissimilar luminescence behaviors in the complexes. The role of LMCT was also considered for the observed thermosensing property of the Eu(III) complex.
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Affiliation(s)
- Toushique Ahmed
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Amit Chakraborty
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
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2
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Ahmed T, Chakraborty A, Paul A, Baitalik S. Synthesis, characterization, luminescence properties and deciphering the role of a terpyridyl-imidazole based ligand in the dissimilar luminescence sensitization of ternary lanthanide(III) tris-(β-diketonate) complexes. Dalton Trans 2023; 52:14027-14038. [PMID: 37740376 DOI: 10.1039/d3dt01701j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
We designed four ternary lanthanide tris-(β-diketonate) complexes of the form [Ln(tta)3(tpy-HImzphen)], where Ln = LaIII, EuIII, SmIII and TbIII; tta = (2-theonyltrifluoroacetonate) and tpy-HImzphen = 2-(4-[2,2':6',2'']terpyridin-4'-yl-phenyl)-1H-phenanthro[9,10-d]imidazole. All the complexes have been thoroughly characterized by standard analytical tools and spectroscopic techniques including single crystal X-ray diffraction. In situ generation of the complexes was also monitored via absorption and emission spectroscopy upon incremental addition of the respective lanthanide precursor {Ln(tta)3(H2O)2} to the dichloromethane solution of the terpyridyl-imidazole ligand. The photophysical behaviors of all the complexes were thoroughly investigated via absorption and both steady-state and time-resolved emission spectroscopic techniques. The emission spectral measurements were carried out at both room temperature and 77 K to understand the deactivation dynamics of the excited states and elucidate the distinctive luminescence responses from the four lanthanide metal ions owing to the introduction of the terpyridyl-based ancillary ligand.
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Affiliation(s)
- Toushique Ahmed
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Amit Chakraborty
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Animesh Paul
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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3
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Lu ZZ, Thanasekaran P, Huang CY, Wu JY, Chang TT, Li WS, Velayudham M, Lu KL. A neutral rhenium-biimidazole complex for the selective recognition of fluoride ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 301:122956. [PMID: 37302197 DOI: 10.1016/j.saa.2023.122956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/13/2023]
Abstract
The neutral rhenium(I)-biimidazole complex [Re(CO)3(biimH)(1,4-NVP)] (1) was designed and synthesized by a one-pot reaction of Re2(CO)10, 2,2'-biimidazole (biimH2) and 4-(1-naphthylvinyl)pyridine (1,4-NVP). The structure of 1 was characterized by various spectroscopic techniques including IR, 1H NMR, FAB-MS, and elemental analysis and further confirmed by a single-crystal X-ray diffraction analysis. The mononuclear complex 1, a relatively simple structure with an octahedral geometry, is comprised of facial-arranged carbonyl groups, one chelated biimH monoanion, and one 1,4-NVP. Complex 1 shows the lowest energy absorption band at around 357 nm and an emission band at 408 nm in THF. The luminescent characteristics of 1 combined with the hydrogen bonding ability of the partially coordinated monoionic biimidazole ligand permits the complex to selectively recognize fluoride ions (F-) in the presence of other halides through a dramatic luminescence enhancement. The recognition mechanism of 1 can be convincingly explained in terms of H-bond formation and proton abstraction upon the addition of F- ions by 1H and 19F NMR titration experiments. The electronic properties of 1 were further supported by time dependent density functional theory (TDDFT) computational studies.
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Affiliation(s)
- Zong-Zhan Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Pounraj Thanasekaran
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Department of Chemistry, Pondicherry University, Puducherry 605 014, India
| | | | - Jing-Yun Wu
- Department of Applied Chemistry, National Chi Nan University, Nantou 545, Taiwan
| | - Tzu-Ting Chang
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Shan Li
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Murugesan Velayudham
- Department of Chemistry, Thiagarajar College of Engineering, Madurai 625015, India.
| | - Kuang-Lieh Lu
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan; Department of Chemistry, Fu Jen Catholic University, New Taipei City 242, Taiwan.
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4
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Batool M, Afzal Z, Saleem Khan I, Solangi AR. Exploring the Mechanism of Anionic Chemosensing by Imidazoles: A Review. Crit Rev Anal Chem 2023:1-9. [PMID: 37216276 DOI: 10.1080/10408347.2023.2210680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Chemosensing of ions has gained considerable attention by chemists. Insight into the mechanism involved between sensors and ions always fascinates researchers to develop economical, sensitive, selective, and robust sensors. This review comprehensively explores the mechanism of interaction between Imidazole sensors and anions. With most of the research concentrating only on fluoride and cyanide, this review has highlighted a large gap in various anions detection including SCN-, Cr2O72-, CrO42-, H2PO4-, NO2-, and HSO4-.This study also includes a critical analysis of different mechanisms and their respective limits of detection, with a discussion of the reported results.
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Affiliation(s)
- Madeeha Batool
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Zartashia Afzal
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Iqra Saleem Khan
- Centre for Analytical Chemistry, School of Chemistry, University of the Punjab, New Campus, Lahore, Pakistan
| | - Amber Rehana Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
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5
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Dias GG, O Rodrigues M, Paz ERS, P Nunes M, Araujo MH, Rodembusch FS, da Silva Júnior EN. Aryl-Phenanthro[9,10- d]imidazole: A Versatile Scaffold for the Design of Optical-Based Sensors. ACS Sens 2022; 7:2865-2919. [PMID: 36250642 DOI: 10.1021/acssensors.2c01687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Fluorescent and colorimetric sensors are important tools for investigating the chemical compositions of different matrices, including foods, environmental samples, and water. The high sensitivity, low interference, and low detection limits of these sensors have inspired scientists to investigate this class of sensing molecules for ion and molecule detection. Several examples of fluorescent and colorimetric sensors have been described in the literature; this Review focuses particularly on phenanthro[9,10-d]imidazoles. Different strategies have been developed for obtaining phenanthro[9,10-d]imidazoles, which enable modification of their optical properties upon interaction with specific analytes. These sensing responses usually involve changes in the fluorescence intensity and/or color arising from processes like photoinduced electron transfer, intramolecular charge transfer, intramolecular proton transfer in the excited state, and Förster resonance energy transfer. In this Review, we categorized these sensors into two different groups: those bearing formyl groups and their derivatives and those based on other molecular groups. The different optical responses of phenanthro[9,10-d]imidazole-based sensors upon interaction with specific analytes are discussed.
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Affiliation(s)
- Gleiston G Dias
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG. Brazil
| | - Marieli O Rodrigues
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, CEP, Porto Alegre 91501-970, RS. Brazil
| | - Esther R S Paz
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG. Brazil
| | - Mateus P Nunes
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG. Brazil
| | - Maria H Araujo
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG. Brazil
| | - Fabiano S Rodembusch
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, CEP, Porto Alegre 91501-970, RS. Brazil
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte, 31270-901, MG. Brazil
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Chalmardi GB, Tajbakhsh M, Bekhradnia A, Hosseinzadeh R. A highly sensitive and selective novel fluorescent chemosensor for detection of Cr3+ based on a Schiff base. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Somasundaram S, Kamaraj E, Hwang SJ, Jung S, Choi MG, Park S. Synthesis, structural, and photophysical studies of π-fused acenaphtho[1,2-d]imidazole-based excited-state intramolecular proton transfer molecules. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Maroń A, Kula S, Szlapa-Kula A, Świtlicka A, Machura B, Krompiec S, Małecki JG, Kruszyński R, Chrobok A, Schab-Balcerzak E, Kotowicz S, Siwy M, Smolarek K, Maćkowski S, Janeczek H, Libera M. 2,2′:6′,2′′-Terpyridine Analogues: Structural, Electrochemical, and Photophysical Properties of 2,6-Di(thiazol-2-yl)pyridine Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700141] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anna Maroń
- Department of Crystallography; Institute of Chemistry; University in Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Slawomir Kula
- Department of Inorganic; Organometallic Chemistry and Catalysis; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Agata Szlapa-Kula
- Department of Inorganic; Organometallic Chemistry and Catalysis; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Anna Świtlicka
- Department of Crystallography; Institute of Chemistry; University in Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Barbara Machura
- Department of Crystallography; Institute of Chemistry; University in Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Stanisław Krompiec
- Department of Inorganic; Organometallic Chemistry and Catalysis; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Jan Grzegorz Małecki
- Department of Crystallography; Institute of Chemistry; University in Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Rafał Kruszyński
- Department of X-ray Crystallography and Crystal Chemistry; Institute of General and Ecological Chemistry; Technical University of Lodz; 116 Żeromski St. 90-924 Łódź Poland
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry; Silesian University of Technology; 4 Krzywoustego St. 44-100 Gliwice Poland
| | - Ewa Schab-Balcerzak
- Department of Polymer Chemistry; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; 34 M. Curie-Sklodowska St. 41-819 Zabrze Poland
| | - Sonia Kotowicz
- Department of Polymer Chemistry; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
| | - Mariola Siwy
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; 34 M. Curie-Sklodowska St. 41-819 Zabrze Poland
| | - Karolina Smolarek
- Institute of Physics; Faculty of Physics, Astronomy and Informatics; Nicolaus Copernicus University; 5 Grudziadzka St. 87-100 Torun Poland
| | - Sebastian Maćkowski
- Institute of Physics; Faculty of Physics, Astronomy and Informatics; Nicolaus Copernicus University; 5 Grudziadzka St. 87-100 Torun Poland
| | - Henryk Janeczek
- Centre of Polymer and Carbon Materials; Polish Academy of Sciences; 34 M. Curie-Sklodowska St. 41-819 Zabrze Poland
| | - Marcin Libera
- Department of Polymer Chemistry; Institute of Chemistry; University of Silesia in Katowice; 9 Szkolna St. 40-006 Katowice Poland
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9
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Ali R, Razi SS, Shahid M, Srivastava P, Misra A. Off-On-Off fluorescence behavior of an intramolecular charge transfer probe toward anions and CO2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 168:21-28. [PMID: 27267280 DOI: 10.1016/j.saa.2016.05.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 05/18/2016] [Accepted: 05/29/2016] [Indexed: 06/06/2023]
Abstract
The photophysical behavior of a newly developed fluorescent probe, tricyanoethylphenyl phenanthroimidazole (TCPPI) has been studied. Upon interaction of different class of anions TCPPI displayed naked-eye sensitive fluorescence "turn-on" response to detect selectively F(-) (0.98μM, 18.62ppb) and CN(-) (1.12μM, 29.12ppb) anions in acetonitrile (MeCN). Job's plot analysis revealed a 1:1 binding stoichiometry between probe and anions. The spectral data analysis and 1H NMR titration studies suggested about the affinity of F(-) and CN(-) anions with moderately acidic -NH fragment of imidazolyl unit of probe through deprotonation and H-bonding interaction. Moreover, the anion activated probe upon interaction with CO2 revived photophysical properties of probe, "On-Off-On" type fluorescence and enabled anion-induced CO2 sensing in the medium.
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Affiliation(s)
- Rashid Ali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Syed S Razi
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Mohammad Shahid
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Priyanka Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Arvind Misra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India.
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10
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Mondal D, Bar M, Mukherjee S, Baitalik S. Design of Ru(II) Complexes Based on Anthraimidazoledione-Functionalized Terpyridine Ligand for Improvement of Room-Temperature Luminescence Characteristics and Recognition of Selective Anions: Experimental and DFT/TD-DFT Study. Inorg Chem 2016; 55:9707-9724. [PMID: 27617341 DOI: 10.1021/acs.inorgchem.6b01483] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work we report synthesis and characterization of three rigid and linear rodlike monometallic Ru(II) complexes based on a terpyridine ligand tightly connected to 9,10-anthraquinone electron-acceptor unit through phenyl-imidazole spacer. The motivation of designing these complexes is to enhance their excited-state lifetimes at room temperature. Interestingly it is found that all three complexes exhibit luminescence at room temperature with excited-state lifetimes in the range of 1.6-52.8 ns, depending upon the coligand as well as the solvent. Temperature-dependent luminescence investigations indicate that the energy gap between the emitting 3MLCT state and nonemitting metal-centered state 3MC in the complexes increased enormously compared with parent [Ru(tpy)2]2+. In addition, by taking advantage of the imidazole NH proton(s), which became appreciably acidic upon combined effect of electron accepting anthraquinone moiety as well as metal ion coordination, we also examined anion recognition and sensing behaviors of the complexes in organic, mixed aqueous-organic as well as in solid medium through different optical channels such as absorption, steady-state and time-resolved emission, and 1H NMR spectroscopic techniques. In conjunction with the experiment, computational investigation was also employed to examine the electronic structures of the complexes and accurate assignment of experimentally observed spectral and redox behaviors.
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Affiliation(s)
- Debiprasad Mondal
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
| | - Manoranjan Bar
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
| | - Shruti Mukherjee
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
| | - Sujoy Baitalik
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
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11
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Maroń A, Szlapa A, Klemens T, Kula S, Machura B, Krompiec S, Małecki JG, Świtlicka-Olszewska A, Erfurt K, Chrobok A. Tuning the photophysical properties of 4′-substituted terpyridines – an experimental and theoretical study. Org Biomol Chem 2016; 14:3793-808. [DOI: 10.1039/c6ob00038j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several 2,2′:6′,2′′-terpyridine derivatives were synthesized and their photophysical properties were investigated by absorption and photoluminescence spectroscopy.
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Affiliation(s)
- Anna Maroń
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - Agata Szlapa
- Department of Inorganic
- Organometallic Chemistry and Catalysis
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
| | - Tomasz Klemens
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - Slawomir Kula
- Department of Inorganic
- Organometallic Chemistry and Catalysis
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
| | - Barbara Machura
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - Stanisław Krompiec
- Department of Inorganic
- Organometallic Chemistry and Catalysis
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
| | - Jan Grzegorz Małecki
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | | | - Karol Erfurt
- Department of Chemical Organic Technology and Petrochemistry
- Silesian University of Technology
- 44-100 Gliwice
- Poland
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry
- Silesian University of Technology
- 44-100 Gliwice
- Poland
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12
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Wan Q, Zhuo JB, Wang XX, Lin CX, Yuan YF. A simple and highly selective 2,2-diferrocenylpropane-based multi-channel ion pair receptor for Pb2+ and HSO4−. Dalton Trans 2015; 44:5790-6. [DOI: 10.1039/c4dt03862b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 2,2-diferrocenylpropane-based multi-channel ion pair receptor 1 was designed and structurally characterized. It was a “naked-eye-detectable” chemosensor towards Pb2+ and HSO4− with excellent selectivity and sensitivity.
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Affiliation(s)
- Qian Wan
- Department of Chemistry
- Fuzhou University
- Fuzhou 350116
- China
| | - Ji-Bin Zhuo
- Department of Chemistry
- Fuzhou University
- Fuzhou 350116
- China
| | - Xiao-Xue Wang
- Department of Chemistry
- Fuzhou University
- Fuzhou 350116
- China
| | - Cai-Xia Lin
- Department of Chemistry
- Fuzhou University
- Fuzhou 350116
- China
| | - Yao-Feng Yuan
- Department of Chemistry
- Fuzhou University
- Fuzhou 350116
- China
- State Key Laboratory of Photocatalysis on Energy and Environment
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13
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Das S, Karmakar S, Mardanya S, Saha D, Baitalik S. Cation-induced switching on–off luminescence in an imidazole 4,5-dicarboxylate-bridged RuIIOsII bipyridine complex: A combined experimental and DFT/TD-DFT investigation. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.03.026] [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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14
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Zhou Z, Shih K, Cai YP, Szeto L, Wong WT. Highly Specific Probe for Ferric Ions in Aqueous Solution Based on 5, 6-Dicarboxy-3H-benzoimidazol-1-ium Nitrate. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201300340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Nayal A, Kumar A, Chhatra RK, Pandey PS. Dual colorimetric sensing of mercury and iodide ions by steroidal 1,2,3-triazole-stabilized silver nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra08080g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bile acid-based 1,2,3-triazole ligands have been synthesized, which show excellent ability to stabilize silver nanoparticles. These AgNPs have been found to exhibit highly selective dual colorimetric sensing of Hg2+ and I− ions.
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Affiliation(s)
- Aradhana Nayal
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi, India
| | - Anjul Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi, India
| | - Rajesh K. Chhatra
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi, India
| | - Pramod S. Pandey
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi, India
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16
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Das S, Karmakar S, Mardanya S, Baitalik S. Synthesis, structural characterization, and multichannel anion and cation sensing studies of a bifunctional Ru(ii) polypyridyl–imidazole based receptor. Dalton Trans 2014; 43:3767-82. [DOI: 10.1039/c3dt52424h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Maity D, Bhaumik C, Mondal D, Baitalik S. Photoinduced intramolecular energy transfer and anion sensing studies of isomeric RuIIOsIIcomplexes derived from an asymmetric phenanthroline–terpyridine bridge. Dalton Trans 2014; 43:1829-45. [DOI: 10.1039/c3dt52186a] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Maity D, Bhaumik C, Mondal D, Baitalik S. Ru(II) and Os(II) Complexes Based on Terpyridyl-Imidazole Ligand Rigidly Linked to Pyrene: Synthesis, Structure, Photophysics, Electrochemistry, and Anion-Sensing Studies. Inorg Chem 2013; 52:13941-55. [DOI: 10.1021/ic401582m] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Dinesh Maity
- Department
of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
| | - Chanchal Bhaumik
- Department
of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
| | - Debiprasad Mondal
- Department
of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
| | - Sujoy Baitalik
- Department
of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
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Maity D, Bhaumik C, Karmakar S, Baitalik S. Photoinduced Electron and Energy Transfer and pH-Induced Modulation of the Photophysical Properties in Homo- and Heterobimetallic Complexes of Ruthenium(II) and Rhodium(III) Based on a Heteroditopic Phenanthroline–Terpyridine Bridge. Inorg Chem 2013; 52:7933-46. [DOI: 10.1021/ic400449c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dinesh Maity
- Inorganic Chemistry Section, Department
of Chemistry, Jadavpur University, Kolkata
700032, India
| | - Chanchal Bhaumik
- Inorganic Chemistry Section, Department
of Chemistry, Jadavpur University, Kolkata
700032, India
| | - Srikanta Karmakar
- Inorganic Chemistry Section, Department
of Chemistry, Jadavpur University, Kolkata
700032, India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department
of Chemistry, Jadavpur University, Kolkata
700032, India
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20
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Highly efficient one-pot synthesis of α-free pyrylium salts with tunable fluorescence emission via ring-expanding reaction of triarylcyclopentadienes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.113] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Maity D, Das S, Mardanya S, Baitalik S. Synthesis, structural characterization, and photophysical, spectroelectrochemical, and anion-sensing studies of heteroleptic ruthenium(II) complexes derived from 4'-polyaromatic-substituted terpyridine derivatives and 2,6-bis(benzimidazol-2-yl)pyridine. Inorg Chem 2013; 52:6820-38. [PMID: 23724852 DOI: 10.1021/ic3022326] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Heteroleptic bis-tridentate ruthenium(II) complexes of composition [(H2pbbzim)Ru(tpy-Ar)](ClO4)2, where H2pbbzim = 2,6-bis(benzimidazol-2-yl)pyridine and tpy-Ar = 4'-substituted terpyridine ligands with Ar = phenyl (2), 2-naphthyl (3), 9-anthryl (4), and 1-pyrenyl (5) groups, have been synthesized and characterized by using standard analytical and spectroscopic techniques. The X-ray crystal structures of the complexes [(H2pbbzim)Ru(tpy-Naph)](ClO4)2 (3), [(pbbzim)Ru(tpy-Naph)]·(CH3)2CO·H2O (3a), and [(H2pbbzim)Ru(tpy-Py)](ClO4)2 (5) have been determined. The absorption, steady-state, and time-resolved luminescence spectral properties of the complexes were thoroughly investigated in dichloromethane. The compounds display strong luminescence at room temperature with lifetimes (τ2) in the range of 5.5-62 ns, depending upon the nature of the polycyclic aromatic moiety as well as the solvents. The complexes are found to undergo one reversible oxidation in the positive potential window (0 to +1.5 V) and four successive quasi-reversible reductions in the negative potential window (0 to -2.4 V). The anion-sensing properties of the receptors were thoroughly investigated in acetonitrile/dichloromethane (1/9 v/v) solutions (2 × 10(-5) M) using absorption, steady-state, and time-resolved emission spectroscopic studies. (1)H NMR titration experiments, on the other hand, were carried out in either CD3CN or DMSO-d6. The anion-sensing studies revealed that the receptors act as sensors for F(-), CN(-), AcO(-), and SO4(2-) and to some extent for HSO4(-) and H2PO4(-). It is evident that, in the presence of excess anions, deprotonation of the imidazole N-H fragments of the receptors occurs, which is signaled by the change of color from yellow-orange to violet visible with the naked eye. From the absorption and emission titration studies the binding/equilibrium constants of the receptors with the anions have also been determined. Anion-induced lifetime quenching and/or enhancement make the receptors suitable lifetime-based sensors for selective anions. Cyclic voltammetric (CV) measurements of the compounds carried out in acetonitrile have provided evidence in favor of anion-dependent electrochemical responses with F(-) and AcO(-) ions. Spectroelectrochemical studies have also been carried out for both the protonated and deprotonated forms of the complexes in the range of 300-1200 nm. With successive oxidation of the Ru(II) center, replacement of MLCT bands by LMCT bands occurs gradually with observation of sharp isosbestic points in all cases.
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Affiliation(s)
- Dinesh Maity
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
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Optical Recognition of Anions by Ruthenium(II)-Bipyridine-Calix[4]Arene System. J Fluoresc 2013; 23:997-1006. [DOI: 10.1007/s10895-013-1226-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 04/30/2013] [Indexed: 11/26/2022]
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23
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Saha D, Das S, Karmakar S, Dutta S, Baitalik S. Synthesis, structural characterization and anion-, cation- and solvent-induced tuning of photophysical properties of a bimetallic Ru(ii) complex: combined experimental and DFT/TDDFT investigation. RSC Adv 2013. [DOI: 10.1039/c3ra41114a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Yang C, Xu J, Ma J, Zhu D, Zhang Y, Liang L, Lu M. An efficient long fluorescence lifetime polymer-based sensor based on europium complex as chromophore for the specific detection of F−, CH3COO−, and H2PO4−. Polym Chem 2012. [DOI: 10.1039/c2py20408h] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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