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Yang L, Song N, Zhang D, Wang S, Zhou Z. Accurate Matching of a Secondary Amino-Functionality Metal-Organic Cage for Selective Recognition and Supramolecular Binding during Photoinduced Hydrogen Evolution. Inorg Chem 2023; 62:17705-17712. [PMID: 37844205 DOI: 10.1021/acs.inorgchem.3c02331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Accurate matching of the active sites between the host and guest molecules has a great effect on the selective recognition of different but similar guest molecules or different binding abilities toward the same molecule. Herein, a pseudotetrahedral metal-organic cage (MOC, Co-TAP) that contains secondary amino groups designed as guest-interacting sites was achieved. Co-TAP exhibits the selective recognition of uridine over other similar natural molecules via a fluorescent response. However, a reference structure (Co-TOP) with the same configuration was also synthesized by replacing the secondary amine group with an oxygen atom of the ligand, and it reveals the selective recognition of guanosine. In addition, the accurate matching also enables Co-TAP to strongly bind the organic dye as a guest molecule via host-guest interactions, thus facilitating photoinduced electron transfer between the redox catalytic sites in MOC and the excited guest via a pseudointramolecular pathway.
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Affiliation(s)
- Lu Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Nuan Song
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Daopeng Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Suna Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Zhen Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
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2
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Morozkov GV, Abel AS, Filatov MA, Nefedov SE, Roznyatovsky VA, Cheprakov AV, Mitrofanov AY, Ziankou IS, Averin A, Beletskaya IP, Michalak J, Bucher C, Bonneviot L, Bessmertnykh-Lemeune A. Ruthenium(II) complexes with phosphonate-substituted 1,10-phenanthroline ligands: synthesis, characterization and use in organic photocatalysis. Dalton Trans 2022; 51:13612-13630. [DOI: 10.1039/d2dt01364a] [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
Ru(II) complexes with polypyridyl ligands play a central role in the development of photocatalytic organic reactions. This work is aimed at the structural modification of such complexes to increase their...
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Shalan H, Colbert A, Nguyen TT, Kato M, Cheruzel L. Correlating the para-Substituent Effects on Ru(II)-Polypyridine Photophysical Properties and on the Corresponding Hybrid P450 BM3 Enzymes Photocatalytic Activity. Inorg Chem 2017; 56:6558-6564. [PMID: 28537742 DOI: 10.1021/acs.inorgchem.7b00685] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ru(II)-diimine complexes covalently attached near the heme active site of P450 BM3 enzymes have been used to rapidly inject electrons and drive selective C-H functionalization upon visible light irradiation. Herein, we have generated a series of hybrid P450 BM3 enzymes containing a photosensitizer of general formula [Ru(4,4'-X2bpy)2(PhenA)]2+ where X = Cl, H, tBu, Me OPhe, OMe, or NMe2, bpy = 2,2'-bipyridine, and PhenA = 5-acetamido-1,10-phenanthroline. We then probed the effect of electron-withdrawing and -donating groups at the para position of the 4,4'-X2bpy ligands on the corresponding hybrid enzymes photocatalytic activity. A 3-fold improvement in initial reaction rate was noted when varying the substituent from Cl to tBu, however, the reaction rates decrease thereafter with the more electron donating groups. In order to rationalize those effects, we investigated the variation of the substituent on the photophysical properties of the corresponding [Ru(4,4'-X2bpy)2(bpy)]2+ model complexes. Several linear correlations were established between the E(III/II) potential, the MLCT emission, and absorption energies as well as the logarithm of the luminescence quenching rate vs the summative Brown-Okamoto parameter (Σσp+). Moreover, a downward curved Hammett plot is observed with the hybrid enzyme initial reaction rate revealing mechanistic details about the overall light-driven enzymatic process.
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Affiliation(s)
- Hadil Shalan
- Department of Chemistry, San Jose State University , San Jose, California 95192-0101, United States
| | - Alexander Colbert
- Department of Chemistry, San Jose State University , San Jose, California 95192-0101, United States
| | - Thanh Truc Nguyen
- Department of Chemistry, San Jose State University , San Jose, California 95192-0101, United States
| | - Mallory Kato
- Department of Chemistry, San Jose State University , San Jose, California 95192-0101, United States
| | - Lionel Cheruzel
- Department of Chemistry, San Jose State University , San Jose, California 95192-0101, United States
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4
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. M, Shukla S, Mohan D. Toxicity of Disperse Dyes and its Removal from Wastewater Using Various Adsorbents: A Review. ACTA ACUST UNITED AC 2017. [DOI: 10.3923/rjet.2017.72.89] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Kaur K, Kumar R, Goel S, Uppal S, Bhatia A, Mehta SK. Physiochemical and cytotoxicity study of TPGS stabilized nanoemulsion designed by ultrasonication method. ULTRASONICS SONOCHEMISTRY 2017; 34:173-182. [PMID: 27773233 DOI: 10.1016/j.ultsonch.2016.05.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/21/2016] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
The main aim of the present work was to prepare TPGS stabilized D-α-Tocopherol, lemon oil, tween-80, and water nanoemulsion by low cost and highly effective sonication method. The prepared nanoemulsion showed good stability for 60days at variable temperature conditions i.e. 4, 25 and 37°C. The tolerance of the prepared nanoemulsion to salt (50mM-500mM) and pH (pH 2-pH 7.4) was also studied. The morphology and droplet size of pure and quinine loaded nanoemulsion was characterized with transmission electron microscopy. The prepared formulation was transparent and the obtained average particle size ranged between 25nm and 35nm. The nanoemulsion was found to be non toxic. The cell viability study of pure nanoemulsion carried out on Hep G2 cells revealed that the cell viability was 100%. The formulation further exhibited high quinine loading and release capacity with cumulative release up to 76±2% and 65±2% at pH 7.4 and pH 5.5 respectively. The interaction between quinine and vitamins (riboflavin, thiamine and biotin) was also carried out (aqueous medium). The study revealed that riboflavin had strong interaction with quinine and vitamins vis-à-vis thiamine and biotin.
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Affiliation(s)
- Khushwinder Kaur
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India.
| | - Raj Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
| | - Sumit Goel
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Shivani Uppal
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
| | - Alka Bhatia
- Department of Experimental Medicine and Biotechnology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - S K Mehta
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160 014, India
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Yang L, He C, Liu X, Zhang J, Sun H, Guo H. Supramolecular Photoinduced Electron Transfer between a Redox-Active Hexanuclear Metal-Organic Cylinder and an Encapsulated Ruthenium(II) Complex. Chemistry 2016; 22:5253-60. [DOI: 10.1002/chem.201504975] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Indexed: 01/30/2023]
Affiliation(s)
- Lu Yang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
| | - Cheng He
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
| | - Xin Liu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
| | - Jing Zhang
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
| | - Hui Sun
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
| | - Huimin Guo
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116023 P. R. China), Fax
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Ruthenium(II) bipyridine complexes with pendant anthracenyl and naphthyl moieties: A strategy for a ROS generator with DNA binding selectivity. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.09.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Rajeswari A, Ramdass A, Muthu Mareeswaran P, Rajagopal S. Electron Transfer Studies of Ruthenium(II) Complexes with Biologically Important Phenolic Acids and Tyrosine. J Fluoresc 2015; 26:531-43. [DOI: 10.1007/s10895-015-1738-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 11/27/2015] [Indexed: 01/24/2023]
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9
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Sangiliapillai R, Arumugam R, Eswaran R, Seenivasan R. Micellar effect on the photophysics of heteroleptic ruthenium(II)-phenanthrolinedisulfonato complexes. LUMINESCENCE 2015; 31:30-7. [PMID: 25900090 DOI: 10.1002/bio.2917] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 03/05/2015] [Accepted: 03/05/2015] [Indexed: 11/06/2022]
Abstract
Luminescent heteroleptic ruthenium(II) complexes of type RuLn X(3-n) [L = 1,10-phenanthroline (phen), X = 4,7 diphenyl phenanthroline disulfonate, (dpsphen) n = 0,1,2,3] were synthesized and their photophysical properties investigated in homogeneous and cationic (CTAB), anionic (SDS) and nonionic (Triton X-100) micelles. The luminescent quantum yield and lifetime of the complexes were found to increase in the presence of micellar media and on the introduction of a disulfonate ligand into the coordination sphere. Both electrostatic and hydrophobic interactions play an important role in the micellar media. Thus, by changing the nature of the ligands and the medium, we were able to tune the photophysical properties of Ru(II) complexes.
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Affiliation(s)
| | - Ramdass Arumugam
- Department of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, Tamilnadu, India
| | - Rajkumar Eswaran
- Department of Chemistry, Madras Christian College, Chennai, Tamilnadu, India
| | - Rajagopal Seenivasan
- Department of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, Tamilnadu, India
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Ghorbani-Choghamarani A, Darvishnejad Z, Norouzi M. Cu(II)-Schiff base complex-functionalized magnetic Fe3
O4
nanoparticles: a heterogeneous catalyst for various oxidation reactions. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3266] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Zahra Darvishnejad
- Department of Chemistry, Faculty of Science; Ilam University; PO Box 69315516 Ilam Iran
| | - Masoomeh Norouzi
- Department of Chemistry, Faculty of Science; Ilam University; PO Box 69315516 Ilam Iran
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Thiruppathi D, Karuppasamy P, Ganesan M, Sivasubramanian VK, Rajendran T, Rajagopal S. Electron transfer reactions of methionine peptides with photochemically generated ruthenium(III)–polypyridyl complexes. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Electron Transfer Reactions of Photochemically Generated Ruthenium(III)-Polypyridyl Complexes with Methionines. INT J CHEM KINET 2014. [DOI: 10.1002/kin.20874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Senthil Murugan K, Rajendran T, Balakrishnan G, Ganesan M, Sivasubramanian VK, Sankar J, Ilangovan A, Ramamurthy P, Rajagopal S. Visible-light activation of the bimetallic chromophore-catalyst dyad: analysis of transient intermediates and reactivity toward organic sulfides. J Phys Chem A 2014; 118:4451-63. [PMID: 24884484 DOI: 10.1021/jp501084b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In order to develop a new photocatalytic system, we designed a new redox-active module (5) to hold both a photosensitizer part, [Ru(II)(terpy)(bpy)X](n+) (where terpy = 2,2':6',2''-terpyridine and bpy = 2,2'-bipyridine), and a popular Jacobsen catalytic part, salen-Mn(III), covalently linked through a pyridine-based electron-relay moiety. On the basis of nanosecond laser flash photolysis studies, an intramolecular electron transfer mechanism from salen-Mn(III) to photooxidized Ru(III) chromophore yielding the catalytically active high-valent salen-Mn(IV) species was proposed. To examine the reactivity of such photogenerated salen-Mn(IV), we employed organic sulfide as substrate. Detection of the formation of a Mn(III)-phenoxyl radical and a sulfur radical cation during the course of reaction using time-resolved transient absorption spectroscopy confirms the electron transfer nature of the reaction. This is the first report for the electron transfer reaction of organic sulfide with the photochemically generated salen-Mn(IV) catalytic center.
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Affiliation(s)
- Krishnan Senthil Murugan
- Post Graduate and Research Department of Chemistry, Vivekananda College , Tiruvedakam West, Madurai 625 234, India
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Muthu Mareeswaran P, Babu E, Sathish V, Kim B, Woo SI, Rajagopal S. p-Sulfonatocalix[4]arene as a carrier for curcumin. NEW J CHEM 2014. [DOI: 10.1039/c3nj00935a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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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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16
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Veerakumar P, Balakumar S, Velayudham M, Lu KL, Rajagopal S. Ru/Al2O3 catalyzed N-oxidation of tertiary amines by using H2O2. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20047c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Lanzalunga O, Lapi A. Recent photo- and radiation chemical studies of sulfur radical cations. J Sulphur Chem 2011. [DOI: 10.1080/17415993.2011.619536] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Osvaldo Lanzalunga
- a Dipartimento di Chimica and IMC-CNR, Sezione Meccanismi di Reazione , Università “La Sapienza” , P.le A. Moro, 5 I-00185 , Rome , Italy
| | - Andrea Lapi
- a Dipartimento di Chimica and IMC-CNR, Sezione Meccanismi di Reazione , Università “La Sapienza” , P.le A. Moro, 5 I-00185 , Rome , Italy
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Rajkumar M, Bhuvaneswari J, Velayudham M, Rajkumar E, Rajagopal S. Photoluminescence Electron-Transfer Quenching of Rhenium(I) Complexes with Organic Sulfides. J Fluoresc 2011; 21:1729-37. [DOI: 10.1007/s10895-011-0868-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Accepted: 02/13/2011] [Indexed: 11/24/2022]
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Veerakumar P, Velayudham M, Lu KL, Rajagopal S. Highly dispersed silica-supported nanocopper as an efficient heterogeneous catalyst: application in the synthesis of 1,2,3-triazoles and thioethers. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00300c] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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