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Costa JCS, Lobo Ferreira AIMC, Lima CFRA, Santos LMBF. The Cohesive Interactions in Phenylimidazoles. J Phys Chem A 2024; 128:4674-4684. [PMID: 38815182 PMCID: PMC11182350 DOI: 10.1021/acs.jpca.4c01589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
This work presents a comprehensive study exploring the thermodynamics of the solid phase of a series of phenylimidazoles, encompassing experimental measurements of heat capacity, volatility, and thermal behavior. The influence of successive phenyl group insertions on the imidazole ring on thermodynamic properties and supramolecular behavior was thoroughly examined through the evaluation of 2-phenylimidazole (2-PhI), 4-phenylimidazole (4-PhI), 4,5-diphenylimidazole (4,5-DPhI), and 2,4,5-triphenylimidazole (2,4,5-TPhI). Structural correlations between molecular structure and thermodynamic properties were established. Furthermore, the investigation employed UV-vis spectroscopy and quantum chemical calculations. Additive effects arising from the introduction of phenyl groups were found through the analysis of the solid-liquid and solid-gas equilibria, as well as heat capacities. A good correlation emerged between the thermodynamic properties of sublimation and the molar volume of the unit cell, evident across 2-PhI, 4,5-DPhI, and 2,4,5-TPhI. In contrast to its isomer 2-PhI, 4-PhI exhibited greater cohesive energy due to the stronger N-H···N intermolecular interactions, leading to the disruption of coplanar geometry in the 4-PhI molecules. The observed higher entropies of phase transition (fusion and sublimation) are consistent with the higher structural order observed in the crystalline lattice of 4-PhI.
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Affiliation(s)
- José C. S. Costa
- CIQUP, Institute of Molecular
Sciences (IMS), Department of Chemistry and Biochemistry, Faculty
of Science, University of Porto, Rua do Campo Alegre s/n, Porto P4169-007, Portugal
| | - Ana I. M. C. Lobo Ferreira
- CIQUP, Institute of Molecular
Sciences (IMS), Department of Chemistry and Biochemistry, Faculty
of Science, University of Porto, Rua do Campo Alegre s/n, Porto P4169-007, Portugal
| | - Carlos F. R. A.
C. Lima
- CIQUP, Institute of Molecular
Sciences (IMS), Department of Chemistry and Biochemistry, Faculty
of Science, University of Porto, Rua do Campo Alegre s/n, Porto P4169-007, Portugal
| | - Luís M.
N. B. F. Santos
- CIQUP, Institute of Molecular
Sciences (IMS), Department of Chemistry and Biochemistry, Faculty
of Science, University of Porto, Rua do Campo Alegre s/n, Porto P4169-007, Portugal
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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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Deb S, Sahoo A, Mondal P, Baitalik S. Analysis and prediction of anion- and temperature responsive behaviours of luminescent Ru(II)-terpyridine complexes by using Boolean, fuzzy logic, artificial neural network and adapted neuro fuzzy inference models. Dalton Trans 2022; 51:15601-15613. [PMID: 36169624 DOI: 10.1039/d2dt02611b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anion- and temperature responsive behaviors of three luminescent Ru(II)-terpyridine complexes are utilized here to demonstrate multiple Boolean (BL) and fuzzy logic (FL) operations. Taking advantage of the imidazole NH protons, anion-promoted alteration of the photophysical characteristics of the complexes was thoroughly investigated via absorption, and emission spectral and lifetime measurements. In their free state, the complexes display luminescence representing the "on-state", whereas quenching of luminescence is observed with anions demonstrating the "off-state". Likewise, lowering of temperature induces a substantial increase of luminescence and lifetime demonstrating the "on-state", while the increase of temperature induces a significant decrease of emission intensity and lifetime indicating the "off-state" and the process is reversible in both cases. The complexes thus can act as anion- and temperature-responsive molecular switches. The spectral signatures of the complexes under the influence of anions and temperature were employed to mimic multiple BL and FL functions. Performing very detailed sensing studies by varying the analyte concentration within a wide domain is very tedious, time-consuming and expensive. In order to overcome the lacuna, we implemented machine learning and soft computing tools such as artificial neural networks (ANNs), fuzzy-logic and adaptive neuro-fuzzy inference system (ANFIS) to predict the experimental anion sensing data of the complexes.
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Affiliation(s)
- Sourav Deb
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - Priyam Mondal
- 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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4
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Lu H, Hou H, Hou YC, Zheng Z, Ma Y, Zhou Z, Guo X, Pan QJ, Wang Y, Qian Y, Wang JQ, Lin J. A New Concept of Radiation Detection Based on a Fluorochromic and Piezochromic Nanocluster. J Am Chem Soc 2022; 144:3449-3457. [DOI: 10.1021/jacs.1c11496] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huangjie Lu
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
- University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing 100049, PR China
| | - Huiliang Hou
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
- University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing 100049, PR China
| | - Yu-Chang Hou
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, PR China
| | - Zhaofa Zheng
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
- University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing 100049, PR China
| | - Yingying Ma
- Center for High Pressure Science and Technology Advanced Research (HPSTAR) Beijing 100094, PR China
| | - Zhengyang Zhou
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China
| | - Xiaofeng Guo
- Department of Chemistry and Alexandra Navrotsky Institute for Experimental Thermodynamics, Washington State University Pullman, Washington 99164-4630, United States
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, PR China
| | - Yonggang Wang
- Center for High Pressure Science and Technology Advanced Research (HPSTAR) Beijing 100094, PR China
| | - Yuan Qian
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
- University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing 100049, PR China
| | - Jian-Qiang Wang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, China
- University of Chinese Academy of Sciences, No.19 (A) Yuquan Road, Shijingshan District, Beijing 100049, PR China
| | - Jian Lin
- School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, PR China
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5
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Qian J, Lu H, Zheng Z, Xu M, Qian Y, Zhang ZH, Wang JQ, He MY, Lin J. Achieving colour tuneable and white-light luminescence in a large family of dual-emission lanthanide coordination polymers. Dalton Trans 2021; 50:14325-14331. [PMID: 34558579 DOI: 10.1039/d1dt01618k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Expanding the family of lanthanide terpyridine coordination polymers has yielded eighteen new complexes with two different phases, Ln(TPC)2(HCOO)(H2O) (Ln-1) and Ln(TPC)(HCOO)2 (Ln-2) (Ln = Sm-Lu, except Tm). Both structures are composed of lanthanide cations interconnected by 2,2':6',2''-terpyridine-4'-carboxylate ligands to yield one-dimensional chain topologies. However, the incorporation of an additional crystallographically unique decorative TPC ligand into Ln-1 gives rises to a distinct phase. The encapsulation of both metal- and ligand-based phosphors within single coordination polymers leads to dual-emission of the afforded materials. Furthermore, judicious lanthanide doping in heterometallic Ln-1 and Ln-2 allows for fine-tuning the photoluminescent colours over a wide range of gamut. Such a combination showcases the capability to fine-tune the emission colours from deep green, to red, and to blue. In addition, direct white-light emission upon UV excitation can be achieved in the SmxGd1-x-1 system.
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Affiliation(s)
- Junfeng Qian
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
| | - Huangjie Lu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China. .,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Zhaofa Zheng
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China. .,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Miaomiao Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China.,Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China.
| | - Yuan Qian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China. .,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Zhi-Hui Zhang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
| | - Jian-Qiang Wang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China. .,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
| | - Ming-Yang He
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
| | - Jian Lin
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jia Luo Road, Shanghai 201800, P. R. China. .,University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing, 100049, P. R. China
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6
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Mukherjee S, Sahoo A, Deb S, Baitalik S. Light and Cation-Driven Optical Switch based on a Stilbene-Appended Terpyridine System for the Design of Molecular-Scale Logic Devices. J Phys Chem A 2021; 125:8261-8273. [PMID: 34506718 DOI: 10.1021/acs.jpca.1c06524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A molecular system comprising a terpyridine moiety capable of coordinating with different cations and a photoswitchable stilbene unit has been utilized here for the fabrication of multiply configurable logic systems. Incorporation of a substituted stilbene unit into the terpyridine motif generates an intraligand charge-transfer-sensitive module whose absorption and emission spectral properties are highly sensitive to light as well as cations. On the basis of the optical response profile of the receptor in the presence of selected cations as well as light of a specific wavelength, we are able to demonstrate multiple Boolean logic functions such as INHIBIT, IMPLICATION, OR, NOR, and NAND, as well as various combinations of them. Of particular interest, we utilized the present system for the construction of security keypad locks and memory devices by maintaining a proper sequence of the stimuli and monitoring either absorption or emission spectral response at a specific wavelength as the output signal. In addition to various Boolean logic functions, the present system has also the ability to mimic fuzzy logic operations for generating an infinite-valued logic scheme depending on its emission spectral responses upon varying the concentration of cationic (Fe2+ and/or Zn2+) and anionic (CN-) inputs.
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Affiliation(s)
- Shruti Mukherjee
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sourav Deb
- 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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7
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Deb S, Sahoo A, Ahmed T, Baitalik S. Stimuli-Responsive Molecular Switches and Logic Devices Based on Ru(II)-Terpyridyl-Imidazole Coordination Motif. J Phys Chem B 2021; 125:8919-8931. [PMID: 34323072 DOI: 10.1021/acs.jpcb.1c05305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report herein the synthesis, photophysics, and electrochemistry of three Ru(II)-terpyridine complexes derived from a new terpyridyl-imidazole ligand (tpy-HImzPh3F2) and study their pH- and temperature-responsive behaviors toward the fabrication of molecular switches. The complexes emitted at room temperature (RT) have a lifetime within the 4.5-49.0 ns domain, depending on the auxiliary ligand and the solvent used. In the acidic region, the complexes exhibit emission, indicating the "on-state", while in the basic condition, the emission is totally quenched, indicating the "off-state". Similarly, when the temperature is lowered, the emission intensity and lifetime are enhanced, demonstrating the on-state, while increase of temperature leads to quenching of the emission intensity and lifetime, designated as the off-state. In both cases, the process is reversible. The bathochromic shift of the spectral band together with the emission quenching and lowering of the Ru3+/Ru2+ potential is also observed upon deprotonation at elevated pH. In addition, systematic variation of the absorption spectral behaviors upon variation of pH helps in evaluation of the pKa's of the complexes. In essence, the complexes can act as switches emanated from a huge change in their absorption, emission, and redox behaviors as a function of their acidity/basicity (pH) and temperature. Moreover, their emission spectral responses as a function of pH and temperature were utilized for the fabrication of two-input binary logic gates. Density-functional theory (DFT) and time-dependent density-functional theory (TD-DFT) computations are performed for appropriate interpretation of the spectral bands.
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Affiliation(s)
- Sourav Deb
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Anik Sahoo
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Toushique Ahmed
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Sujoy Baitalik
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700 032, India
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8
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Pal P, Ganguly T, Das S, Baitalik S. pH-Responsive colorimetric, emission and redox switches based on Ru(ii)-terpyridine complexes. Dalton Trans 2021; 50:186-196. [PMID: 33290452 DOI: 10.1039/d0dt03537h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have undertaken a thorough investigation on pH-responsive optical and redox switching behaviors of our recently reported trans form of bis-tridentate Ru(ii) luminophores, [(H2pbbzim)Ru(tpy-pvp-X)]2+ where X = H, Me, Cl, NO2, and Ph. The complexes possess two benzimidazole protons in their second coordination sphere, which became acidic upon coordinating influence of Ru2+ and could be successively deprotonated with the increase of pH. The effect of pH on photophysical and electrochemical behaviours of the complexes was thoroughly studied. Substantial quenching of emission together with the red-shift of both absorption (color change) and emission bands is noticed for all complexes upon dissociation of NH protons. Absorption vs. pH data were employed for determination of ground-state pKa values, while excited-state pKa (pKa*) values were estimated by employing the Förster cycle based equation. The electronic nature of X induces a small but finite effect on the pKa values and a linear correlation is found by plotting pKavs. Hammett σp parameters of X. Proton-coupled electrochemical behaviours were investigated within the pH range of 1-10. From the E1/2vs. pH plot, acid dissociation constants in different protonation states of the complexes were estimated in both Ru2+ and Ru3+ states. Compared with their protonated forms which exhibit reversible oxidation within 0.91-0.95 V, the oxidation potential of the doubly deprotonated forms shifted remarkably to the cathodic region (0.61-0.66 V). In essence, the present complexes act as potential pH-responsive colorimetric, emission and redox switches.
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Affiliation(s)
- Poulami Pal
- Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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9
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Synthesis, crystal structure and spectroscopic properties of a new type of pentanuclear zinc(II) complex. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Mukherjee S, Pal P, Maity D, Baitalik S. Photophysics and luminescence switching properties of a series of photochromic styrylbenzene-terpyridine conjugate: Experimental and DFT/TD-DFT investigation. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Singh VD, Dwivedi BK, Paitandi RP, Kumar Y, Pandey DS. Effect of substituents on photophysical and aggregation behaviour in quinoline based bis-terpyridine Zn(II) complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Sivaraman G, Iniya M, Anand T, Kotla NG, Sunnapu O, Singaravadivel S, Gulyani A, Chellappa D. Chemically diverse small molecule fluorescent chemosensors for copper ion. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.020] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Maity D, Hari N, Mohanta S. A Bis(Boronic Ester)-Based Fluorogenic and Chromogenic Sensor for F-and Cu2+. ChemistrySelect 2017. [DOI: 10.1002/slct.201700891] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dinesh Maity
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
| | - Nairita Hari
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
| | - Sasankasekhar Mohanta
- Department of Chemistry, Inorganic Chemistry Section; University of Calcutta; Kolkata 700009 India
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14
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Mondal D, Biswas S, Paul A, Baitalik S. Luminescent Dinuclear Ruthenium Terpyridine Complexes with a Bis-Phenylbenzimidazole Spacer. Inorg Chem 2017; 56:7624-7641. [PMID: 28654273 DOI: 10.1021/acs.inorgchem.6b02937] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A conjugated bis-terpyridine bridging ligand, 2-(4-(2,6-di(pyridin-2-yl)pyridin-4-yl)phenyl)-6-(2-(4-(2,6-di(pyridin-2-yl)pyridin-4-yl)phenyl)-1H-benzo[d]imidazol-6-yl)-1H-benzo[d] imidazole (tpy-BPhBzimH2-tpy), was designed in this work by covalent coupling of 3,3'-diaminobenzidine and two 4'-(p-formylphenyl)-2,2':6',2″-terpyridine units to synthesize a new series of bimetallic Ru(II)-terpyridine light-harvesting complexes. Photophysical and electrochemical properties were modulated by the variation of the terminal ligands in the complexes. The new compounds were thoroughly characterized by 1H NMR spectroscopy, high-resolution mass spectrometry, and elemental analysis. Absorption spectra of the complexes consist of very strong ligand-centered π-π* and n-π* transitions in the UV, metal-to-ligand, and intraligand charge transfer bands in the visible regions. Steady-state and time-resolved emission spectral measurements indicate that the complexes exhibit moderately intense luminescence at room temperature within the spectral domain of 653-687 nm having luminescence lifetimes in the range between 6.3 and 55.2 ns, depending upon terminal tridentate ligand and solvent. Variable-temperature luminescence measurements suggest substantial increase of the energy gap between luminescent 3metal-to-ligand charge transfer state and nonluminescent 3metal centered in the complexes compared to the parent [Ru(tpy)2]2+. Each of the three bimetallic complexes exhibits only one reversible couple in the positive potential window with almost no detectable splitting corresponding to simultaneous oxidation of the two remote Ru centers. All the complexes possess a number of imidazole NH protons, which became sufficiently acidic upon metal ion coordination. By utilizing these NH protons, we thoroughly studied anion recognition properties of the complexes in pure organic as well as predominantly aqueous media through multiple optical channels and spectroscopic methods. Finally computation investigations employing density functional theory (DFT) and time-dependent DFT were done to examine the electronic structures of the complexes and accurate assignment of experimentally observed optical spectral bands.
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Affiliation(s)
- Debiprasad Mondal
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
| | - Sourav Biswas
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University , Kolkata 700032, India
| | - Animesh Paul
- 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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15
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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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16
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Wang CZ, Do JH, Akther T, Feng X, Horsburgh L, Elsegood MR, Redshaw C, Yamato T. D-π-D chromophores based on dithieno[3,2-b:2',3'-d]thiophene (DTT): Potential application in the fabrication of solar cell. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.077] [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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17
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Polypyridyl-imidazole based smart Ru(II) complex mimicking advanced Boolean and Fuzzy logic functions. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.02.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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18
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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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19
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Feng X, Seto N, Wang CZ, Matsumoto T, Tanaka J, Wei XF, Elsegood MRJ, Horsburgh L, Redshaw C, Yamato T. Extended π-Conjugated Pyrene Derivatives: Structural, Photophysical and Electrochemical Properties. ChemistrySelect 2016. [DOI: 10.1002/slct.201600598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xing Feng
- Department of Applied Chemistry; Faculty of Science and Engineering; Saga University; Honjo-machi 1 Saga 840-8502 Japan
- School of Printing and Packaging Engineering; Beijing Institute of Graphic Communication; 1 Xinghua Avenue (Band Two), Daxing Beijing 102600, P. R. China
| | - Nobuyuki Seto
- Department of Applied Chemistry; Faculty of Science and Engineering; Saga University; Honjo-machi 1 Saga 840-8502 Japan
| | - Chuan-Zeng Wang
- Department of Applied Chemistry; Faculty of Science and Engineering; Saga University; Honjo-machi 1 Saga 840-8502 Japan
| | - Taisuke Matsumoto
- Institute of Materials Chemistry and Engineering; Kyushu University; 6-1, Kasugakoen Kasuga 816-8580 Japan
| | - Junji Tanaka
- Institute of Materials Chemistry and Engineering; Kyushu University; 6-1, Kasugakoen Kasuga 816-8580 Japan
| | - Xian-Fu Wei
- School of Printing and Packaging Engineering; Beijing Institute of Graphic Communication; 1 Xinghua Avenue (Band Two), Daxing Beijing 102600, P. R. China
| | | | - Lynne Horsburgh
- Chemistry Department; Loughborough University; Loughborough LE11 3TU UK
| | - Carl Redshaw
- Department of Chemistry; The University of Hull; Cottingham Road, Hull Yorkshire HU6 7RX UK
| | - Takehiko Yamato
- Department of Applied Chemistry; Faculty of Science and Engineering; Saga University; Honjo-machi 1 Saga 840-8502 Japan
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20
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Mandal L, Majumder S, Mohanta S. Syntheses, crystal structures and steady state and time-resolved fluorescence properties of a PET based macrocycle and its dinuclear ZnII/CdII/HgII complexes. Dalton Trans 2016; 45:17365-17381. [DOI: 10.1039/c6dt02631a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The present report deals with solution spectroscopic (absorption and emission) and colorimetric studies of a Robson type tetraaminodiphenol macrocyclic ligand and its ZnII2, CdII2 and HgII2 compounds.
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Affiliation(s)
- Leena Mandal
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
| | - Samit Majumder
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
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21
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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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22
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Karmakar S, Mardanya S, Pal P, Baitalik S. Design of Multichannel Osmium-Based Metalloreceptor for Anions and Cations by Taking Profit from Metal–Ligand Interaction and Construction of Molecular Keypad Lock and Memory Device. Inorg Chem 2015; 54:11813-25. [DOI: 10.1021/acs.inorgchem.5b02300] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Srikanta Karmakar
- Department of Chemistry,
Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
| | - Sourav Mardanya
- Department of Chemistry,
Inorganic Chemistry Section, Jadavpur University, Kolkata 700032, India
| | - Poulami Pal
- 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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23
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Mukherjee S, Paul AK. Pyrene Based Chemosensor for Selective Sensing of Fluoride in Aprotic and Protic Environment. J Fluoresc 2015; 25:1461-7. [PMID: 26293480 DOI: 10.1007/s10895-015-1636-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 07/26/2015] [Indexed: 11/30/2022]
Abstract
A new aromatic hydrazone based on pyrene-1-aldehyde was synthesized and characterized by (1)H NMR and mass spectrometric analyses. The sensing properties of the hydrazone were studied by absorption and fluorescence studies in the aprotic solvent DMSO. It was capable of visual and fluorescent detection of fluoride over competitive ions (Cl(-), Br(-), H2PO4 (-), AcO(-)). Moreover, the in-situ prepared iron(III) complex of the hydrazone was investigated as a turn off fluorescent fluoride sensor in aqueous medium by displacement mechanism.
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Affiliation(s)
- Soma Mukherjee
- Department of Environmental Science, University of Kalyani, Nadia, Kalyani, 741 235, West Bengal, India.
| | - Amit Kumar Paul
- Department of Environmental Science, University of Kalyani, Nadia, Kalyani, 741 235, West Bengal, India
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24
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Abstract
Logic gates with different radixes have been constructed using a biologically active molecule, 2-(4′-N,N-dimethylaminophenyl)imidazo[4,5-b]pyridine (DMAPIP-b).
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Affiliation(s)
- Saugata Sahu
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Timir Baran Sil
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Minati Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - G. Krishnamoorthy
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- India
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25
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Karmakar S, Maity D, Mardanya S, Baitalik S. Pyrene and imidazole functionalized luminescent bimetallic Ru(ii) terpyridine complexes as efficient optical chemosensors for cyanide in aqueous, organic and solid media. Dalton Trans 2015; 44:18607-23. [DOI: 10.1039/c5dt02585k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Luminescent bimetallic Ru(ii)-terpyridine complexes based on the pyrenyl-bis-phenylimidazole spacer as highly efficient sensors for cyanide in aqueous, organic and solid media are reported.
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Affiliation(s)
- Srikanta Karmakar
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata 700032
- India
| | - Dinesh Maity
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata 700032
- India
| | - Sourav Mardanya
- 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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26
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Chhatwal M, Kumar A, Gupta RD, Awasthi SK. A pyrene-based optical probe capable of molecular computation using chemical input strings. RSC Adv 2015. [DOI: 10.1039/c5ra08465b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Elucidation of molecular computing by employing a pyrene-based chemosensor with Cu2+, Fe3+, CN− and H+ ions as input stimuli and subsequent quantum yields as output responses.
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Affiliation(s)
- Megha Chhatwal
- Chemical Biology Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
| | - Anup Kumar
- Chemical Biology Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
| | - Rinkoo D. Gupta
- Faculty of Life Sciences and Biotechnology
- South Asian University
- New Delhi-110 021
- India
| | - Satish K. Awasthi
- Chemical Biology Laboratory
- Department of Chemistry
- University of Delhi
- Delhi-110 007
- India
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27
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Chou CC, Liu HJ, Chao LHC, Yang CC. Halide-modulated bistate and tristate fluorescence switching for Cu( i) and Ag( i) complexes. NEW J CHEM 2015. [DOI: 10.1039/c4nj01639d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a facile reversible tristate fluorescence switching system “LPh ↔ 1·ClO4 ↔ 2 or 3 ↔ LPh” for copper(i) complexes and a simple ON ↔ OFF bistate fluorescence switching “LPh ↔ 5·ClO4” for a silver(i) complex were presented.
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Affiliation(s)
- Chang-Chuan Chou
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan
- Republic of China
| | - Hsueh-Ju Liu
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan
- Republic of China
| | - Lucas Hung-Chieh Chao
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan
- Republic of China
| | - Chia-Chi Yang
- Center for General Education
- Chang Gung University of Science and Technology
- Tao-Yuan
- Republic of China
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28
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Mardanya S, Karmakar S, Mondal D, Baitalik S. An imidazolyl-pyreno-imidazole conjugate as a cyanide sensor and a set–reset memorized sequential logic device. Dalton Trans 2015; 44:15994-6012. [DOI: 10.1039/c5dt01317h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A pyrenyl-bisimidazole system can act as an efficient cyanide sensor and a ‘set–reset’ memory device.
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Affiliation(s)
- Sourav Mardanya
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata 700032
- India
| | - Srikanta Karmakar
- 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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