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Wang LL, Wang HH, Wang H, Liu HY. Photoinduced Electron Transfer between DNA and Water-Soluble Porphyrins. J Phys Chem B 2021; 125:5683-5693. [PMID: 34042460 DOI: 10.1021/acs.jpcb.0c09335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photophysical properties of five kinds of porphyrins (H2TMPyP, ZnTMPyP, PdTMPyP, H2TPPS, and ZnTPPS) complexed with model DNAs (ctDNA and dGMP) have been investigated using steady-state absorption, circular dichroism (CD), and femtosecond transient absorption spectroscopy. Upon addition of ctDNA (or dGMP), larger hypochromism and red shifts are observed for H2TMPyP and PdTMPyP compared to the other samples. The steady-state measurements have suggested that the binding modes of H2TMPyP-ctDNA and PdTMPyP-ctDNA are partial intercalation and full intercalation, respectively, while ZnTMPyP-ctDNA shows outside groove binding. No significant interaction was observed between both H2TPPS and ZnTPPS with two kinds of DNA. Upon excitation of the porphyrins into the higher excited state S2 (Soret band), the appearance of the transient absorption from ∼500 to ∼620 nm at about 0.05 ps in H2TMPyP-ctDNA, H2TMPyP-dGMP, and PdTMPyP-dGMP indicates the occurrence of the electron transfer (ET) from guanine to H2TMPyP and PdTMPyP. The forward ET are extremely fast (kf ≥ 1.0 × 1013 s-1), and the backward ET rates are ∼5.6 × 1012 and ∼4.0 × 1012 s-1, respectively. The complexation with DNA may lead to the shorter lifetime of the fluorescence of H2TMPyP and PdTMPyP.
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Affiliation(s)
- Li-Li Wang
- State Key Laboratory of Optoelectronics Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hua-Hua Wang
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
| | - Hui Wang
- State Key Laboratory of Optoelectronics Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hai-Yang Liu
- Department of Chemistry, South China University of Technology, Guangzhou 510641, China
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2
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Yin H, Cheng F, Liu Z, He C, Yang Y, Wang K. Preparation, characterization, pH titration, and electrochemical properties of an anthracene-bridged binuclear ruthenium complex containing imidazole. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1678031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Hongju Yin
- College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - Feixiang Cheng
- College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - Zining Liu
- College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - Chixian He
- College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - Yuting Yang
- College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - Kezhi Wang
- College of Chemistry, Beijing Normal University, Beijing, China
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3
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Yin HJ, Zhang AG, Gao LH, Zhao H, Wang KZ. DNA groove-binding and acid-base properties of a Ru(II) complex containing anthryl moieties. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2019; 39:592-614. [PMID: 31566116 DOI: 10.1080/15257770.2019.1669804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
DNA groove binders have been poorly studied as compared to the intercalators. A novel Ru(II) complex of [Ru(aeip)2(Haip)](PF6)2 {Haip = 2-(9-anthryl)-1H-imidazo[4,5-f][1,10]phenanthroline and aeip = 2-(anthracen-9-yl)-1-ethyl-imidazo[4,5-f][1, 10]phenanthroline} is synthesized and characterized by elemental analysis, 1H NMR spectroscopy and mass spectrometry. The complex is evidenced to be a calf-thymus DNA groove binder with a large intrinsic binding constant of 106 M-1 order of magnitude as supported by UV-visible absorption spectral titrations, salt effects, DNA competitive binding with ethidium bromide, DNA melting experiment, DNA viscosity measurements and density functional theory calculations. The acid-base properties of the complex studied by UV-Vis spectrophotometric titrations are reported as well.
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Affiliation(s)
- Hong-Ju Yin
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China.,College of Chemistry and Chemical Engineering, Qujing Normal University, Qujing, China
| | - An-Guo Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
| | - Li-Hua Gao
- School of Science, Beijing Technology and Business University, Beijing, China
| | - Hua Zhao
- School of Science, Beijing Technology and Business University, Beijing, China
| | - Ke-Zhi Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, People's Republic of China
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4
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Wang LL, Zhang L, Wang H, Zhang Y, Huang JT, Zhu H, Ying X, Ji LN, Liu HY. Photoinduced Electron Transfer between Anionic Corrole and DNA. J Phys Chem A 2016; 120:535-42. [PMID: 26752116 DOI: 10.1021/acs.jpca.5b11021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The interaction between a water-soluble anionic Ga(III) corrole [Ga(tpfc)(SO3Na)2] and calf thymus DNA (ct-DNA) has been investigated by using femtosecond transient absorption spectroscopy. A significant broadening from 570 to 585 nm of positive absorption band of the blend of Ga(tpfc)(SO3Na)2 and ct-DNA (Ga(tpfc)(SO3Na)2-ctDNA) has been observed from 0.15 to 0.50 ps after photoexcitation of Ga(tpfc)(SO3Na)2 into the Soret band. The control experiment has been performed on the model DNA ([poly(dG-dC)]2) rich in guanine bases, which exhibits a similar spectral broadening, whereas it is absent for [poly(dA-dT)]2 without guanine bases. The molecular orbital calculation shows that HOMO of Ga(tpfc)(SO3Na)2 is lower than that of guanine bases. The results of the electrochemical experiment show the reversible electron transfer (ET) between Ga(tpfc)(SO3Na)2 and guanine bases of ct-DNA is thermodynamically favorable. The dynamical analysis of the transient absorption spectra reveals that an ultrafast forward ET from the guanine bases to Ga(tpfc)(SO3Na)2 occurs within the pulse duration (156 fs), leading to the formation of an intermediate state. The following back ET to the ground state of Ga(tpfc)(SO3Na)2 may be accomplished in 520 fs.
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Affiliation(s)
- Li-Li Wang
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Lei Zhang
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Hui Wang
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Yang Zhang
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Jun-Teng Huang
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - He Zhu
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Xiao Ying
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Liang-Nian Ji
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
| | - Hai-Yang Liu
- State Key Laboratory of Optoelectronics Materials and Technologies and ‡School of Chemistry and Chemical Engineering/MOE Laboratory of Bioinorganic and Synthetic Chemistry, Sun Yat-sen University , Guangzhou 510275, China.,Department of Chemistry and ∥Department of Applied Physics, South China University of Technology , Guangzhou 510641, China
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Zheng ZB, Kang SY, Yi X, Zhang N, Wang KZ. Off–on–off pH luminescence switching and DNA binding properties of a free terpyridine-appended ruthenium complex. J Inorg Biochem 2014; 141:70-78. [DOI: 10.1016/j.jinorgbio.2014.08.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 08/22/2014] [Accepted: 08/24/2014] [Indexed: 01/09/2023]
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6
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Zhao XL, Li ZS, Zhang AG, Liu P, Song XM, Wang KZ. pH and DNA luminescence switching, DNA photocleavage and cytotoxic properties of two thiophene-containing ruthenium(II) complexes. Eur J Med Chem 2014; 87:10-22. [DOI: 10.1016/j.ejmech.2014.09.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 08/03/2014] [Accepted: 09/11/2014] [Indexed: 10/24/2022]
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7
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Miao TF, Li S, Chen Q, Wang NL, Zheng KC. Probing DNA photocleavage efficiencies of Ru(II) polypyridyl complexes: Theoretical calculation of redox potentials. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Chen X, Xue LX, Ju CC, Wang KZ. The effects of linear assembly of two carbazole groups on acid-base and DNA-binding properties of a ruthenium(II) complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 111:196-203. [PMID: 23639737 DOI: 10.1016/j.saa.2013.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 03/24/2013] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
A novel Ru(II) complex of [Ru(bpy)2(Hbcpip)](ClO4)2 {where bpy=2,2-bipyridine, Hbcpip=2-(4-(9H-3,9'-bicarbazol-9-yl)phenyl)-1H-imidazo[4,5-f][1,10]phenanthroline} is synthesized and characterized. Calf-thymus DNA-binding properties of the complex were studied by UV-vis absorption and luminescence titrations, steady-state emission quenching by [Fe(CN)6](4-), DNA competitive binding with ethidium bromide, thermal denaturation and DNA viscosity measurements. The results indicate that the complex partially intercalated into the DNA with a binding constant of (5.5±1.4)×10(5) M(-1) in buffered 50 mM NaCl. The acid-base properties of the complex were also studied by UV-visible and luminescence spectrophotometric pH titrations, and ground- and excited-state acidity ionization constant values were derived.
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Affiliation(s)
- Xi Chen
- College of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University, Beijing 100875, China
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Li L, Pan Q, Song GW. Application of a europium complex, Eu(AA)3phen (AA=acrylic acid, phen=1,10-phenanthroline) as a spectroscopic probe and cleaving reagent of DNA. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2078-83. [PMID: 23498235 DOI: 10.1016/j.msec.2013.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 12/18/2012] [Accepted: 01/14/2013] [Indexed: 11/25/2022]
Abstract
A complex Eu(AA)3phen was synthesized and characterized by elemental analysis, IR spectroscopy and (1)H NMR. Interaction between Eu(AA)3phen and DNA was studied by UV/visible absorption spectroscopy, fluorescence spectrophotometer, circular-dichroism (CD) spectra and gel-electrophoresis measurements. Absorption spectral indicated that Eu(AA)3phen binding to DNA was an electrostatic mode, which was authenticated by the effect of ionic strength, thermal denaturation and fluorescence quenching experiments. The intrinsic binding constant Kb of Eu(AA)3phen was calculated to be 1.6×10(4) L mol(-1).
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Affiliation(s)
- Ling Li
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Function Molecules, Hubei University, Wuhan 430062, PR China
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10
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Yuan CL, Zhang AG, Zheng ZB, Wang KZ. The effects of structural variations of thiophene-containing Ru(II) complexes on the acid–base and DNA binding properties. J Biomol Struct Dyn 2013; 31:316-30. [DOI: 10.1080/07391102.2012.698238] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Zhao XL, Li ZS, Zheng ZB, Zhang AG, Wang KZ. pH luminescence switch, DNA binding and photocleavage, and cytotoxicity of a dinuclear ruthenium complex. Dalton Trans 2013; 42:5764-77. [DOI: 10.1039/c3dt33116d] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Gan GL, Chao H, Ji SB, Chen LL, Li H. Preparation of a DNA-bound [Ru(bpy)₂(mbpibH2)]²+ film and its two-mode luminescence tuning by copper(II) ions and EDTA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:297-305. [PMID: 22771565 DOI: 10.1016/j.saa.2012.06.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 06/07/2012] [Accepted: 06/10/2012] [Indexed: 06/01/2023]
Abstract
An imidazophenanthroline-containing ruthenium(II) complex [Ru(bpy)(2)(mbpibH2)](2+) (bpy=2,2'-bipyridine, mbpibH2=1,3-bis([1,10]phenanthroline[5,6-d]imidazol-2-yl)benzene) can bind DNA through groove-binding and/or non-classical intercalation modes, revealed by spectrophotometric methods, viscosity measurements and variable ionic strength experiments. On the basis of binding interactions between cationic [Ru(bpy)(2)(mbpibH2)](2+) and anionic DNA at a molar ratio of 1:1, a yellow transparent cast film has been assembled on an indium-tin oxide (ITO) surface using a solution-based self-standing method. The prepared DNA-[Ru(bpy)(2)(mbpibH2)](2+) film shows a bi-exponential luminescence decay with τ(1)=62.1 ns (8.0%) and τ(2)=594.5 ns (92.0%), whose lifetimes become much shorter than those of DNA-bound [Ru(bpy)(2)(mbpibH2)](2+) in buffer solutions. The Ru(II) complex with a free bi-dentate coordination site in the DNA cast film shows tunable luminescence, quenched dynamically by Cu(2+) and restored by using EDTA to eliminate two modes of Cu(2+)-binding. The results from this study provide a significant foundation for better understanding the fabrication and modulation of a DNA-based solid luminescence device using the Ru(II) complexes as DNA-concentrating and signal-sensing agents.
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Affiliation(s)
- Gui-Lian Gan
- Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, PR China
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Miao TF, Li S, Chen JC, Ma F, Zheng KC. Theoretical studies on DNA-photocleavage efficiencies and mechanisms of Ru(II) polypyridyl complexes. J Biol Inorg Chem 2012; 17:1177-85. [PMID: 22899357 DOI: 10.1007/s00775-012-0931-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 07/29/2012] [Indexed: 11/24/2022]
Abstract
Theoretical studies on the DNA-photocleavage efficiencies and mechanisms of Ru(II) complexes [Ru(bpy)(2)(L)](2+) (bpy = 2,2'-bipyridine; L: dppz = dipyrido[3,2-a:2',3'-c]phenazine; mitatp = 5-methoxy-isatino[1,2-b]-1,4,8,9-tetraazatriphenylene; nitatp = 5-nitro-isatino [1,2-b]-1,4,8,9-tetraazatriphenylene) 1-3 were carried out using density functional theory (DFT). First, the accuracies of redox potentials computed for [Ru(bpy)(3)](2+) in the ground state and the excited state by different computational methods were tested, and then the redox potentials of complexes 1-3 in their excited states were computed accurately. Secondly, the trend in the DNA-photocleavage efficiencies (ϕ) of complexes 1-3 [i.e., ϕ(2) > ϕ(3) > ϕ(1)] was reasonably well explained by their excited-state reduction potentials and their electron-transfer activation energies. Finally, the photoinduced oxidation-reduction mechanism utilized by these complexes was explored, and the DNA-photocleavage process was explained rationally.
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Affiliation(s)
- Ti-Fang Miao
- College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, 235000, China.
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14
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Zhao XL, Ma YZ, Wang KZ. Synthesis, pH-induced “on–off–on” luminescence switching, and partially intercalative DNA-binding and DNA photocleavage properties of an β-d-allopyranoside-grafted ruthenium(II) complex. J Inorg Biochem 2012; 113:66-76. [DOI: 10.1016/j.jinorgbio.2012.03.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Revised: 03/28/2012] [Accepted: 03/29/2012] [Indexed: 11/15/2022]
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15
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LI JUN, XU LIANCAI, LIAO SIYAN, ZHENG KANGCHENG, JI LIANGNIAN. DFT/TDDFT STUDY ON DNA-BINDING AND SPECTRAL PROPERTIES OF "LIGHT SWITCH" COMPLEX [Ru(phen)2 (taptp)]2+ IN AQUEOUS SOLUTION. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633608004490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The theoretical studies on the electronic structure, DNA-binding, and absorption-spectral properties of "light switch" complex [ Ru ( phen )2( taptp )]2+ (phen = 1,10-phenanthroline; taptp = 4,5,9,18-tetraazaphenanthreno-[9,10-b]triphenylene) in aqueous solution have been carried out using density functional theory (DFT) and time-dependent DFT (TDDFT) methods. The results show the following: (i) The solvent effect makes all the frontier molecular orbital energies of complex to increase to a certain extent; however, the energies (ε LUMO + x) of some frontier unoccupied molecular orbitals (MOs) in aqueous solution are still negative and rather lower than those of the energies (ε HOMO - x) of some frontier-occupied MOs of DNA-base pairs, and thus the complex in aqueous solution is still an excellent electron-acceptor in its DNA-binding. (ii) The solvent effect further shows that simply increasing the conjugative planar area of intercalative ligand may be ineffective on the improvement of DNA-binding of the resulting complex because of going along with the increase in the LUMO (and LUMO + x) energy. It is the reason why the DNA-binding affinity of "light switch" complex [ Ru ( phen )2( taptp )]2+ is not better than that of the well-known complex [ Ru ( phen )2( dppz )]2+ yet. (iii) The three main experimental bands (~450 nm, ~360 nm, and ~290 nm) of the studied complex in aqueous solution were further well calculated, simulated, and explained by the TDDFT computations.
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Affiliation(s)
- JUN LI
- Department of Chemistry, Guangdong Institute of Education, Guangzhou 510303, PR China
- The Key Laboratory of Bioinorganic and Synthetic, Chemistry of Ministry of Education; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - LIAN-CAI XU
- The Key Laboratory of Bioinorganic and Synthetic, Chemistry of Ministry of Education; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - SI-YAN LIAO
- The Key Laboratory of Bioinorganic and Synthetic, Chemistry of Ministry of Education; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - KANG-CHENG ZHENG
- The Key Laboratory of Bioinorganic and Synthetic, Chemistry of Ministry of Education; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - LIANG-NIAN JI
- The Key Laboratory of Bioinorganic and Synthetic, Chemistry of Ministry of Education; School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China
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DNA- and RNA-binding and enhanced DNA-photocleavage properties of a ferrocenyl-containing ruthenium(II) complex. J Inorg Biochem 2011; 107:104-10. [PMID: 22178672 DOI: 10.1016/j.jinorgbio.2011.10.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 09/12/2011] [Accepted: 10/17/2011] [Indexed: 11/24/2022]
Abstract
The interaction of [Ru(bpy)(2)(fip)](PF(6))(2) {bpy=2,2'-bipyridine, fip=2-ferrocenyl-1H-imidazo[4,5-f][1,10]-phenanthroline} with calf thymus DNA and yeast tRNA was investigated comparatively by UV-visible absorption and luminescence spectrophotometric titrations, steady-state emission quenching by [Fe(CN)(6)](4-), ethidium bromide competition experiment, DNA thermal denaturation, viscosity measurements and salt effect studies. The results suggest that the complex binds to the DNA more strongly than to the RNA. The density functional theory calculations were also carried out in order to better understand the nucleic acid binding properties. Agarose gel electrophoresis showed that the complex exhibited enhanced DNA-photocleavage capacity on pUC 18 plasmid DNA under irradiation at 360 nm as compared with a ferrocenyl-free analogous complex.
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17
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Zhang AG, Yang HX, Wang KZ. The Effects of Grafting of 2-Pyridyl to [Ru(bpy)2(Hpip)]2+on Acid-Base and DNA-Binding Properties: Experimental and DFT Studies. J Biomol Struct Dyn 2011; 28:955-68. [DOI: 10.1080/07391102.2011.10508621] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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pH effects on optical and DNA binding properties of a thiophene-containing ruthenium(II) complex. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.039] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Ju CC, Zhang AG, Yuan CL, Zhao XL, Wang KZ. The interesting DNA-binding properties of three novel dinuclear Ru(II) complexes with varied lengths of flexible bridges. J Inorg Biochem 2011; 105:435-43. [DOI: 10.1016/j.jinorgbio.2010.12.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Revised: 12/11/2010] [Accepted: 12/14/2010] [Indexed: 10/18/2022]
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20
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Ju CC, Zhang AG, Sun HL, Wang KZ, Jiang WL, Bian ZQ, Huang CH. Synthesis, Crystal Structure, and Optical and Photoelectrochemical Properties of a N∩O− Rhenium(I) Complex. Organometallics 2011. [DOI: 10.1021/om100311b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuan-Chuan Ju
- College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - An-Guo Zhang
- College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Hao-Ling Sun
- College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Ke-Zhi Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Wei-Li Jiang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Zu-Qiang Bian
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Chun-Hui Huang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
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Luo H, Wang ZP, Zhang AG, Wang KZ. Synthesis, and Acid–Base and DNA-Binding Properties of a Thiophen-Appended Ruthenium Complex. Aust J Chem 2011. [DOI: 10.1071/ch10316] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
2-(5-Phenylthiophen-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (Hptip) and its RuII complex [Ru(bpy)2(Hptip)](PF6)2 (where bpy = 2,2′-bipyridine) have been synthesized and characterized by elemental analysis, 1H NMR spectroscopy, and mass spectrometry. The acid–base properties of the complex were studied by UV-visible and luminescence spectrophotometric pH titrations, and ground- and excited-state acidity ionization constants were derived. The DNA-binding properties of [Ru(bpy)2(Hptip)](PF6)2 were also investigated by means of UV-vis and emission spectroscopy, salt effects, steady-state emission quenching by [Fe(CN)6]4–, DNA competitive binding with ethidium bromide, DNA melting experiments, and viscosity measurements. Density functional theoretical calculations were also carried out in order to understand the DNA binding properties.
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Miao TF, Li J, Liao SY, Zheng KC, Ji LN. Theoretical studies on DNA-binding, DNA-photocleavage and spectral properties of Co(III) complexes [Co(phen)2(L)]3+ (L=pip, hpip, hnaip). Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.07.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Batista RM, Costa SP, Belsley M, Lodeiro C, Raposo MMM. Synthesis and characterization of novel (oligo)thienyl-imidazo-phenanthrolines as versatile π-conjugated systems for several optical applications. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.043] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Chen LM, Liu J, Chen JC, Shi S, Tan CP, Zheng KC, Ji LN. Experimental and theoretical studies on the DNA-binding and spectral properties of water-soluble complex [Ru(MeIm)4(dpq)]2+. J Mol Struct 2008. [DOI: 10.1016/j.molstruc.2007.09.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Maji S, Sarkar B, Patra M, Das AK, Mobin SM, Kaim W, Lahiri GK. Formation, Reactivity, and Photorelease of Metal Bound Nitrosyl in [Ru(trpy)(L)(NO)]n+ (trpy = 2,2′:6′,2′′-Terpyridine, L = 2-Phenylimidazo[4,5-f]1,10-phenanthroline). Inorg Chem 2008; 47:3218-27. [DOI: 10.1021/ic702160w] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Somnath Maji
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Biprajit Sarkar
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Malay Patra
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Atanu Kumar Das
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Shaikh M. Mobin
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Wolfgang Kaim
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology—Bombay, Powai, Mumbai 400076, India, and Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany
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Xu LC, Shi S, Li J, Liao SY, Zheng KC, Ji LN. A combined computational and experimental study on DNA-photocleavage of Ru(ii) polypyridyl complexes [Ru(bpy)2(L)]2+ (L = pip, o-mopip and p-mopip). Dalton Trans 2008:291-301. [DOI: 10.1039/b710546k] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Zhang ZQ, Li H, Xu J, Yao S, Xu ZH, Liu JG, Ji LN. DNA intercalating studies of [Ru(bpy)2HPIP]2+ with intramolecular hydrogen bond ligand based on introduction of copper ion. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0249-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li H, Mei WJ, Xu Z, Pang DW, Ji LN, Lin ZH. Electrochemistry of a novel monoruthenated porphyrin and its interaction with DNA. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2006.10.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li J, Chen JC, Xu LC, Zheng KC, Ji LN. A DFT/TDDFT study on the structures, trend in DNA-binding and spectral properties of molecular “light switch” complexes [Ru(phen)2(L)]2+(L=dppz, taptp, phehat). J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2006.10.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Gölcü A. Spectrophotometric determination of furosemide in pharmaceutical dosage forms using complex formation with Cu(II). JOURNAL OF ANALYTICAL CHEMISTRY 2006. [DOI: 10.1134/s1061934806080053] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li J, Xu LC, Chen JC, Zheng KC, Ji LN. Density Functional Theory/Time-dependent DFT Studies on the Structures, Trend in DNA-binding Affinities, and Spectral Properties of Complexes [Ru(bpy)2(p-R-pip)]2+ (R = −OH, −CH3, −H, −NO2). J Phys Chem A 2006; 110:8174-80. [PMID: 16805505 DOI: 10.1021/jp0564389] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Studies on the electronic structures and trend in DNA-binding affinities of a series of Ru(II) complexes [Ru(bpy)2(p-R-pip)]2+ (bpy = 2,2-bipyridine; pip = 2-phenylimidazo[4,5-f] [1,10]-phenanthroline; R = -OH, -CH3, -H, -NO2) 1-4 have been carried out, using the density functional theory (DFT) at the B3LYP/LanL2DZ level. The electronic absorption spectra of these complexes were also investigated using time-dependent DFT (TDDFT) at the B3LYP//LanL2DZ/6-31G level. The computational results show that the substituents on the parent ligand (pip) have a significant effect on the electronic structures of the complexes, in particular, on the energies of the lowest unoccupied molecular orbital (LUMO) and near some unoccupied molecular orbitals (LUMO+x, x = 1-4). With the increase in electron-withdrawing ability of the substituent in this series, the LUMO+x (x = 0-4) energies of the complexes are substantially reduced in order, for example, epsilon(LUMO)(1) approximately epsilon(LUMO)(2) > epsilon(LUMO)(3) > epsilon(LUMO)(4), whereas the pi-component populations of the LUMO+x (x = 0-4) are not substantially different. Combining the consideration of the bigger steric hindrance of complex 2, the trend in DNA-binding affinities (K(b)) of the complexes, that is, K(b)(2) < K(b)(1) < K(b)(3) < K(b)(4) can be reasonably explained. In addition, the experimental singlet metal-to-ligand charge transfer ((1)MLCT) spectra of these complexes can be well simulated and discussed by the TDDFT calculations.
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Affiliation(s)
- Jun Li
- School of Chemistry and Chemical Engineering/The Key Laboratory of Gene Engineering of Ministry of Education, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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Chen J, Li J, Qian L, Zheng K. Electronic structures and SARs of the isomeric complexes α-, β-, γ- [Ru(mazpy)2Cl2] with different antitumor activities. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2005.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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