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Kang S, Park BY, Moon D, Han MS. High-Throughput Approach for Facile Access to Hetero-Dinuclear Synergistic Metal Complex for H 2O 2 Activation and Its Implications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:4175-4183. [PMID: 36622965 DOI: 10.1021/acsami.2c21955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hetero-dinuclear synergic catalysis is a promising approach for improving catalytic performance. However, employing it is challenging because the design principles for the metal complex are still not well understood. Further, these complexes have a broader set of possibilities than mononuclear or homometallic systems, increasing the time and effort required to understand them. In this study, we explored a high-throughput approach to obtain a new hetero-dinuclear synergistic metal complex for H2O2 activation. From the 1152 combinations of metal complex candidates obtained by changing three variables (metal ions, unsymmetrical dinucleating ligands, and pH), the lead complex (L3-(Ni, Co)), which has the highest peroxidase activity, was derived using colorimetric parallel analysis. A series of control experiments revealed that L3 plays a crucial role in the formation of active L3-(Ni, Co) complexes, Co2+ acts as a catalytic center, and Ni2+ serves as an assistant catalytic site within L3-(Ni, Co). In addition, the catalytic efficiency of L3-(Ni, Co), which was 125 times that of the homo-bimetallic complex (L3-(Co, Co)), revealed clear hetero-bimetallic synergism in the buffer. The ultraviolet-visible study and electron paramagnetic resonance-based spin-trap experiment provided mechanistic insight into H2O2 activation by the intermediate, which was found to be induced by the reaction of L3-(Ni, Co) and H2O2. Moreover, the intermediate could act as a donor of the hydroperoxyl radical (•OOH) in the buffer. Furthermore, L3-(Ni, Co) demonstrated potential for application as a signal transducer for H2O2 in an enzyme-coupled cascade assay that can be used for the colorimetric detection of glucose.
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Affiliation(s)
- Seungyoon Kang
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Byoung Yong Park
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Dohyun Moon
- Beamline Department, Pohang Accelerator Laboratory, Pohang 37673, Republic of Korea
| | - Min Su Han
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
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2
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Jung SM, Yang M, Song WJ. Symmetry-Adapted Synthesis of Dicopper Oxidases with Divergent Dioxygen Reactivity. Inorg Chem 2022; 61:12433-12441. [DOI: 10.1021/acs.inorgchem.2c01898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Se-Min Jung
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Minwoo Yang
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Woon Ju Song
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
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3
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Mitra S, Prakash D, Rajabimoghadam K, Wawrzak Z, Prasad P, Wu T, Misra SK, Sharp JS, Garcia-Bosch I, Chakraborty S. De Novo Design of a Self-Assembled Artificial Copper Peptide that Activates and Reduces Peroxide. ACS Catal 2021; 11:10267-10278. [DOI: 10.1021/acscatal.1c02132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Suchitra Mitra
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Divyansh Prakash
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | | | - Zdzislaw Wawrzak
- Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, United States
| | - Pallavi Prasad
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
| | - Tong Wu
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Sandeep K. Misra
- Department of Biomolecular Sciences, University of Mississippi, University, Mississippi 38677, United States
| | - Joshua S. Sharp
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
- Department of Biomolecular Sciences, University of Mississippi, University, Mississippi 38677, United States
| | - Isaac Garcia-Bosch
- Department of Chemistry, Southern Methodist University, Dallas, Texas 75275, United States
| | - Saumen Chakraborty
- Department of Chemistry and Biochemistry, University of Mississippi, University, Mississippi 38677, United States
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4
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Li Y, Yi S, Lei Z, Xiao Y. Amphiphilic polymer-encapsulated Au nanoclusters with enhanced emission and stability for highly selective detection of hypochlorous acid. RSC Adv 2021; 11:14678-14685. [PMID: 35423968 PMCID: PMC8698203 DOI: 10.1039/d1ra01634b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/13/2021] [Indexed: 11/21/2022] Open
Abstract
It is of vital importance to develop probes to monitor hypochlorous acid (HClO) in biological systems as HClO is associated with many important physiological and pathological processes. Metal nanoclusters (NCs) are promising luminescent nanomaterials for highly reactive oxygen species (hROS) detection on the basis of their strong reaction ability with hROS. However, metal NCs typically can respond to most common hROS and are susceptible to etching by biothiols, hindering their application in the construction of effective HClO probes. Herein, we proposed a strategy to develop a nanoprobe based on Au NCs for highly sensitive and selective detection of HClO. We synthesized luminescent benzyl mercaptan-stabilized Au NCs and encapsulated them with an amphiphilic polymer (DSPE-PEG). After encapsulation, an obvious emission enhancement and good resistance to the etching by biothiols for Au NCs were achieved. More importantly, the DSPE-PEG encapsulated Au NCs can be used as a nanoprobe for detection of HClO with good performance. The luminescence of the Au NCs was effectively and selectively quenched by HClO. A good linear relationship with the concentration of HClO in the range of 5–35 μM and a limit of detection (LOD) of 1.4 μM were obtained. Additionally, this nanoprobe was successfully used for bioimaging and monitoring of HClO changes in live cells, suggesting the application potential of the as-prepared amphiphilic polymer-encapsulated Au NCs for further HClO-related biomedical research. Amphiphilic polymer-encapsulated Au nanoclusters with enhanced emission and stability were synthesized and used for the sensitive and selective detection of hypochlorous acid.![]()
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Affiliation(s)
- Yiling Li
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China
| | - Shuxiao Yi
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China
| | - Zhongli Lei
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China
| | - Yan Xiao
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China
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Kang S, Park BY, Lee S, Lee N, Han MS. Colorimetric discrimination of nucleoside phosphates based on catalytic signal amplification strategy and its application to related enzyme assays. Analyst 2020; 146:463-470. [PMID: 33491016 DOI: 10.1039/d0an01918f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Selective detection of adenosine monophosphate (AMP) and adenosine diphosphate (ADP) which are less charged molecules than adenosine triphosphate (ATP) or pyrophosphate (PPi) in aqueous solution has been considered challenging because AMP and ADP have relatively low binding affinity for phosphate receptors. In this study, colorimetric discrimination of nucleoside phosphates was achieved based on catalytic signal amplification through the activation of artificial peroxidase. This method showed high selectivity for AMP and ADP over ATP and PPi, unlike previous phosphate sensors that use Zn2+-dipicolylamine-based receptors. High selectivity of the suggested method allowed discrimination of AMP in aqueous solution by the naked eye, and the detection limit was estimated to be 0.5 μM. Mechanism analysis revealed AMP acted as activators in the peroxidation cycle of the Mn2(bpmp)/ABTS/H2O2 system despite having relatively low binding affinity. Additionally, high selectivity and quantitative signal amplification allowed for the development of colorimetric phosphodiesterase and a small molecule kinase assay method. The newly proposed method offers direct, real-time, and quantitative analysis of enzyme activities and inhibition, and is expected to be further applied to high-throughput screening of inhibitors.
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Affiliation(s)
- Seungyoon Kang
- Department of Chemistry, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
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Insights into the direct selective oxidation of methane to methanol over ZSM-5 zeolytes in aqueous hydrogen peroxide. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.03.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Peptide-capped functionalized Ag/Au bimetal nanoclusters with enhanced red fluorescence for lysosome-targeted imaging of hypochlorite in living cells. Talanta 2020; 216:120926. [PMID: 32456892 DOI: 10.1016/j.talanta.2020.120926] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 01/05/2023]
Abstract
Bioimaging probes for monitoring intracellular reactive oxygen species have important implications for cell biology research. Herein, we developed peptide-capped silver/gold nanoclusters (peptide@Ag/Au NCs) for lysosome-targeted imaging of hypochlorite (ClO-). The peptide@Ag/Au NCs were synthesized via a one-pot method using peptide as both a template and a reducing agent. The fluorescence intensity and absolute quantum yield of peptide@Ag/Au NCs were much higher than those of peptide-capped gold nanoclusters and silver nanoclusters. In the presence of ClO-, the fluorescence of peptide@Ag/Au NCs was quenched, accompanied by a redshift due to ClO--induced oxidation of the peptide ligand and decreased Ag content in Ag/Au NCs. The relative fluorescence intensity F0/F had favourable linearity for ClO- concentrations in the range 0.1-100 μmol/L (R2 = 0.9954), with a detection limit (LOD) of 80 nmol/L. The lysosome-targeted peptide@Ag/Au NCs were applied to detect ClO- in lysosomes in living cells via fluorescence imaging.
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Muthuramalingam S, Maheshwaran D, Velusamy M, Mayilmurugan R. Regioselective oxidative carbon-oxygen bond cleavage catalysed by copper(II) complexes: A relevant model study for lytic polysaccharides monooxygenases activity. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Mncube SG, Bala MD. Homogeneous oxidation reactions catalysed by in situ-generated triazolylidene copper(I) complexes. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0278-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Czerwińska K, Machura B, Kula S, Krompiec S, Erfurt K, Roma-Rodrigues C, Fernandes AR, Shul'pina LS, Ikonnikov NS, Shul'pin GB. Copper(ii) complexes of functionalized 2,2':6',2''-terpyridines and 2,6-di(thiazol-2-yl)pyridine: structure, spectroscopy, cytotoxicity and catalytic activity. Dalton Trans 2018; 46:9591-9604. [PMID: 28702618 DOI: 10.1039/c7dt01244f] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Six new copper(ii) complexes with 2,2':6',2''-terpyridine (4'-Rn-terpy) [1 (R1 = furan-2-yl), 2 (R2 = thiophen-2-yl), and 3 (R3 = 1-methyl-1H-pyrrol-2-yl)] and 2,6-di(thiazol-2-yl)pyridine derivatives (Rn-dtpy) [4 (R1), 5 (R2), and 6 (R3)] have been synthesized by a reaction between copper(ii) chloride and the corresponding ligand. The complexes have been characterized by UV-vis and IR spectroscopy, and their structures have been determined by X-ray analysis. The antiproliferative potential of copper(ii) complexes of 2,2':6',2''-terpyridine and 2,6-di(thiazol-2-yl)pyridine derivatives towards human colorectal (HCT116) and ovarian (A2780) carcinoma as well as towards lung (A549) and breast adenocarcinoma (MCF7) cell lines was examined. Complex 1 and complex 6 were found to have the highest antiproliferative effect on A2780 ovarian carcinoma cells, particularly when compared with complex 2, 3 with no antiproliferative effect. The order of cytotoxicity in this cell line is 6 > 1 > 5 > 4 > 2 ≈ 3. Complex 2 seems to be much more specific towards colorectal carcinoma HCT116 and lung adenocarcinoma A549 cells. The viability loss induced by the complexes agrees with Hoechst 33258 staining and typical morphological apoptotic characteristics like chromatin condensation and nuclear fragmentation. The specificity towards different types of cell lines and the low cytotoxic activity towards healthy cells are of particular interest and are a positive feature for further developments. Complexes 1-6 were also tested in the oxidation of alkanes and alcohols with hydrogen peroxide and tert-butyl-hydroperoxide (TBHP). The most active catalyst 4 gave, after 120 min, 0.105 M of cyclohexanol + cyclohexanone after reduction with PPh3. This concentration corresponds to a yield of 23% and TON = 210. Oxidation of cis-1,2-dimethylcyclohexane with m-CPBA catalyzed by 4 in the presence of HNO3 gave a product of a stereoselective reaction (trans/cis = 0.47). Oxidation of secondary alcohols afforded the target ketones in yields up to 98% and TON = 630.
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Affiliation(s)
- Katarzyna Czerwińska
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna St, 40-006 Katowice, Poland.
| | - Barbara Machura
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna St, 40-006 Katowice, Poland.
| | - Slawomir Kula
- Department of Inorganic, Organometallic Chemistry and Catalysis, Institute of Chemistry, University of Silesia, 9th Szkolna St, 40-006 Katowice, Poland
| | - Stanisław Krompiec
- Department of Inorganic, Organometallic Chemistry and Catalysis, Institute of Chemistry, University of Silesia, 9th Szkolna St, 40-006 Katowice, Poland
| | - Karol Erfurt
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Catarina Roma-Rodrigues
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal.
| | - Lidia S Shul'pina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | - Nikolay S Ikonnikov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | - Georgiy B Shul'pin
- Department of Kinetics and Catalysis, Semenov Institute of Chemical Physics, Russian Academy of Sciences, ulitsa Kosygina, dom 4, Moscow 119991, Russia. and Chair of Chemistry and Physics, Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
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11
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Bilyachenko AN, Levitsky MM, Khrustalev VN, Zubavichus YV, Shul’pina LS, Shubina ES, Shul’pin GB. Mild and Regioselective Hydroxylation of Methyl Group in Neocuproine: Approach to an N,O-Ligated Cu6 Cage Phenylsilsesquioxane. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00845] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexey N. Bilyachenko
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, Moscow, Russia
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklay Str., 6, Moscow, Russia
| | - Mikhail M. Levitsky
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, Moscow, Russia
| | - Victor N. Khrustalev
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklay Str., 6, Moscow, Russia
| | - Yan V. Zubavichus
- National Research Center “Kurchatov Institute”, Akademika Kurchatova pl., 1, Moscow, Russia
| | - Lidia S. Shul’pina
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, Moscow, Russia
| | - Elena S. Shubina
- Nesmeyanov
Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, Moscow, Russia
| | - Georgiy B. Shul’pin
- Semenov
Institute of Chemical Physics, Russian Academy of Sciences, ulitsa Kosygina,
dom 4, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow, Russia
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Mann SI, Heinisch T, Ward TR, Borovik AS. Peroxide Activation Regulated by Hydrogen Bonds within Artificial Cu Proteins. J Am Chem Soc 2017; 139:17289-17292. [PMID: 29117678 PMCID: PMC5747327 DOI: 10.1021/jacs.7b10452] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Copper-hydroperoxido species (CuII-OOH) have been proposed to be key intermediates in biological and synthetic oxidations. Using biotin-streptavidin (Sav) technology, artificial copper proteins have been developed to stabilize a CuII-OOH complex in solution and in crystallo. Stability is achieved because the Sav host provides a local environment around the Cu-OOH that includes a network of hydrogen bonds to the hydroperoxido ligand. Systematic deletions of individual hydrogen bonds to the Cu-OOH complex were accomplished using different Sav variants and demonstrated that stability is achieved with a single hydrogen bond to the proximal O-atom of the hydroperoxido ligand: changing this interaction to only include the distal O-atom produced a reactive variant that oxidized an external substrate.
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Affiliation(s)
- Samuel I. Mann
- Department of Chemistry, 1102 Natural Science II, University of California, Irvine, CA 92697
| | - Tillmann Heinisch
- Department of Chemistry, University of Basel, PO Box 3350, Mattenstrasse 24a, BPR 1096, CH-4002 Basel, Switzerland
| | - Thomas R. Ward
- Department of Chemistry, University of Basel, PO Box 3350, Mattenstrasse 24a, BPR 1096, CH-4002 Basel, Switzerland
| | - AS Borovik
- Department of Chemistry, 1102 Natural Science II, University of California, Irvine, CA 92697
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13
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Bilyachenko AN, Kulakova AN, Levitsky MM, Korlyukov AA, Khrustalev VN, Vologzhanina AV, Titov AA, Dorovatovskii PV, Shul'pina LS, Lamaty F, Bantreil X, Villemejeanne B, Ruiz C, Martinez J, Shubina ES, Shul'pin GB. Ionic Complexes of Tetra- and Nonanuclear Cage Copper(II) Phenylsilsesquioxanes: Synthesis and High Activity in Oxidative Catalysis. ChemCatChem 2017. [DOI: 10.1002/cctc.201701063] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Alexey N. Bilyachenko
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
- Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklay Str. 6 117198 Moscow Russia
| | - Alena N. Kulakova
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
- Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklay Str. 6 117198 Moscow Russia
| | - Mikhail M. Levitsky
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
- Pirogov Russian National Research Medical University; Ostrovitianov str. 1 117997 Moscow Russia
| | - Victor N. Khrustalev
- Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklay Str. 6 117198 Moscow Russia
| | - Anna V. Vologzhanina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Aleksei A. Titov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
- Peoples' Friendship University of Russia (RUDN University); Miklukho-Maklay Str. 6 117198 Moscow Russia
| | - Pavel V. Dorovatovskii
- National Research Center “Kurchatov Institute”; Akademika Kurchatova pl. 1 123098 Moscow Russia
| | - Lidia S. Shul'pina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247; CNRS; Université de Montpellier; ENSCM; Site Triolet Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Xavier Bantreil
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247; CNRS; Université de Montpellier; ENSCM; Site Triolet Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Benoît Villemejeanne
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247; CNRS; Université de Montpellier; ENSCM; Site Triolet Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Cindy Ruiz
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247; CNRS; Université de Montpellier; ENSCM; Site Triolet Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247; CNRS; Université de Montpellier; ENSCM; Site Triolet Place Eugène Bataillon 34095 Montpellier cedex 5 France
| | - Elena S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russia
| | - Georgiy B. Shul'pin
- Semenov Institute of Chemical Physics; Russian Academy of Sciences; Ulitsa Kosygina 4 Moscow 119991 Russia
- Plekhanov Russian University of Economics; Stremyannyi pereulok 36 Moscow 117997 Russia
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14
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Elwell CE, Gagnon NL, Neisen BD, Dhar D, Spaeth AD, Yee GM, Tolman WB. Copper-Oxygen Complexes Revisited: Structures, Spectroscopy, and Reactivity. Chem Rev 2017; 117:2059-2107. [PMID: 28103018 PMCID: PMC5963733 DOI: 10.1021/acs.chemrev.6b00636] [Citation(s) in RCA: 445] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A longstanding research goal has been to understand the nature and role of copper-oxygen intermediates within copper-containing enzymes and abiological catalysts. Synthetic chemistry has played a pivotal role in highlighting the viability of proposed intermediates and expanding the library of known copper-oxygen cores. In addition to the number of new complexes that have been synthesized since the previous reviews on this topic in this journal (Mirica, L. M.; Ottenwaelder, X.; Stack, T. D. P. Chem. Rev. 2004, 104, 1013-1046 and Lewis, E. A.; Tolman, W. B. Chem. Rev. 2004, 104, 1047-1076), the field has seen significant expansion in the (1) range of cores synthesized and characterized, (2) amount of mechanistic work performed, particularly in the area of organic substrate oxidation, and (3) use of computational methods for both the corroboration and prediction of proposed intermediates. The scope of this review has been limited to well-characterized examples of copper-oxygen species but seeks to provide a thorough picture of the spectroscopic characteristics and reactivity trends of the copper-oxygen cores discussed.
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Affiliation(s)
- Courtney E Elwell
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Nicole L Gagnon
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Benjamin D Neisen
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Debanjan Dhar
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Andrew D Spaeth
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - Gereon M Yee
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
| | - William B Tolman
- Department of Chemistry, Center for Metals in Biocatalysis, University of Minnesota , 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States
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15
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Sharma RP, Saini A, Kumar S, Kumar J, Venugopalan P, Gondil VS, Chhibber S, Aree T. Diaquabis(ethylenediamine)copper(II) vs. monoaquabis(ethylenediamine)copper(II): Synthesis, characterization, single crystal X-ray structure determination, theoretical calculations and antimicrobial activities of [Cu(en)2(H2O)2](2-phenoxybenzoate)2·H2O and [Cu(en)2(H2O)](diphenylacetate)2·3H2O. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.11.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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16
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Concia AL, Beccia MR, Orio M, Ferre FT, Scarpellini M, Biaso F, Guigliarelli B, Réglier M, Simaan AJ. Copper Complexes as Bioinspired Models for Lytic Polysaccharide Monooxygenases. Inorg Chem 2017; 56:1023-1026. [DOI: 10.1021/acs.inorgchem.6b02165] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alda Lisa Concia
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | | | - Maylis Orio
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Francine Terra Ferre
- Instituto de Química, Universidade Federal do Rio de Janerio, Ilha da Cidade Universitária, 219414-909 Rio de Janeiro, Brazil
| | - Marciela Scarpellini
- Instituto de Química, Universidade Federal do Rio de Janerio, Ilha da Cidade Universitária, 219414-909 Rio de Janeiro, Brazil
| | | | | | - Marius Réglier
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - A. Jalila Simaan
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
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17
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Rosario-Ortiz FL, Canonica S. Probe Compounds to Assess the Photochemical Activity of Dissolved Organic Matter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:12532-12547. [PMID: 27736067 DOI: 10.1021/acs.est.6b02776] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The photochemical properties of dissolved organic matter (DOM) have been of interest to scientists and engineers since the 1970s. Upon light absorption, chromophoric DOM (CDOM) can sensitize the formation of different short-lived reactive intermediates (RIs), including hydroxyl radical (•OH), singlet oxygen (1O2) and superoxide radical anion (O2•-). In addition, a fraction of the excited singlet states in CDOM decays into excited triplet states (3CDOM*), which are also important photochemical transients in environmental systems. These RIs have a significant impact on different processes in sunlit waters, including degradation of organic contaminants and the inactivation of pathogens. Due to their transient nature and low steady-state concentrations, the use of common analytical techniques for the direct measurement of these species is impractical. Therefore, specific probe compounds (PCs) are used. PCs include furfuryl alcohol for 1O2, and terephthalic acid for •OH. In this publication, we present a critical review of the use of PCs for the assessment of the formation of photochemically generated RIs. We first introduce the concept of a PC, including the kinetic treatment and necessary assumptions needed to conduct a specific measurement. Afterward, we present short overviews of the most studied RIs and review relevant issues regarding the use of specific PCs for their measurement. We finalize by offering recommendations regarding the use of PCs in environmental photochemistry.
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Affiliation(s)
- Fernando L Rosario-Ortiz
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133 CH-8600, Dübendorf, Switzerland
- Department of Civil, Environmental and Architectural Engineering, University of Colorado , Boulder, Colorado 80309, United States
| | - Silvio Canonica
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133 CH-8600, Dübendorf, Switzerland
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18
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Miyaji A, Gabe Y, Kohno M, Baba T. Generation of hydroxyl radicals and singlet oxygen during oxidation of rhododendrol and rhododendrol-catechol. J Clin Biochem Nutr 2016; 60:86-92. [PMID: 28366986 PMCID: PMC5370526 DOI: 10.3164/jcbn.16-38] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/10/2016] [Indexed: 12/18/2022] Open
Abstract
The generation of hydroxyl radicals and singlet oxygen during the oxidation of 4-(4-hydroxyphenyl)-2-butanol (rhododendrol) and 4-(3,4-dihydroxyphenyl)-2-butanol (rhododendrol-catechol) with mushroom tyrosinase in a phosphate buffer (pH 7.4) was examined as the model for the reactive oxygen species generation via the two rhododendrol compounds in melanocytes. The reaction was performed in the presence of 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) spin trap reagents for hydroxyl radical or 2,2,6,6-tetramethyl-4-piperidone (4-oxo-TEMP), an acceptor of singlet oxygen, and their electron spin resonances were measured. An increase in the electron spin resonances signal attributable to the adduct of DMPO reacting with the hydroxyl radical and that of 4-oxo-TEMP reacting with singlet oxygen was observed during the tyrosinase-catalyzed oxidation of rhododendrol and rhododendrol-catechol, indicating the generation of hydroxyl radical and singlet oxygen. Moreover, hydroxyl radical generation was also observed in the autoxidation of rhododendrol-catechol. We show that generation of intermediates during tyrosinase-catalyzed oxidation of rhododendrol enhances oxidative stress in melanocytes.
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Affiliation(s)
- Akimitsu Miyaji
- Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259-G1-14, Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Yu Gabe
- Biological Science Laboratories, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga-gun, Tochigi 321-3497, Japan
| | - Masahiro Kohno
- Department of Bioengineering, Tokyo Institute of Technology, 4259-G1-25, Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
| | - Toshihide Baba
- Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259-G1-14, Nagatsuta-cho, Midori-ku, Yokohama 226-8502, Japan
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19
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Tada M, Niwano Y, Kohno M. Generation Mechanism of Deferoxamine Radical by Tyrosine-Tyrosinase Reaction. ANAL SCI 2016; 31:911-6. [PMID: 26353957 DOI: 10.2116/analsci.31.911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nitroxide radical formations of deferoxamine mesylate (DFX) that is used clinically to treat iron-overload patients was examined by a tyrosine-tyrosinase reaction system as models of the H-atom transfer or proton-coupled electron transfer. When DFX was exposed to the tyrosine-tyrosinase reaction, nine-line ESR spectrum (g = 2.0063, hfcc; aN = 0.78 mT, aH(2) = 0.63 mT) was detected, indicating that the oxidation of DFX leads to a nitroxide radical. The signal intensity of the DFX radical increased dependently on the concentrations of tyrosine and tyrosinase. The amounts of DMPO-OH spin adducts via the tyrosine-tyrosinase reaction declined with DFX. Furthermore, mass spectra of an extra removed from the tyrosine-tyrosinase reaction mixture showed that the enzyme reactions might not be degradations of DFX. Therefore, there might be two types of DFX reaction passways, which could be through an internal electron transfer from tyrosine and hydrogen absorptions by ·OH directly.
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Affiliation(s)
- Mika Tada
- Center for General Education, Tohoku Institute of Technology
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20
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Vinogradov MM, Kozlov YN, Bilyachenko AN, Nesterov DS, Shul'pina LS, Zubavichus YV, Pombeiro AJL, Levitsky MM, Yalymov AI, Shul'pin GB. Alkane oxidation with peroxides catalyzed by cage-like copper(ii) silsesquioxanes. NEW J CHEM 2015. [DOI: 10.1039/c4nj01163e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper(ii) silsesquioxanes [(PhSiO1.5)12(CuO)4(NaO0.5)4] or [(PhSiO1.5)10(CuO)2(NaO0.5)2] are catalysts for alkane oxidation with H2O2ort-BuOOH.
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Affiliation(s)
- Mikhail M. Vinogradov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
- Centro de Química Estrutural
| | - Yuriy N. Kozlov
- Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Alexey N. Bilyachenko
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Dmytro S. Nesterov
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Lidia S. Shul'pina
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Yan V. Zubavichus
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
- National Research Center “Kurchatov Institute”
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
| | - Mikhail M. Levitsky
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Alexey I. Yalymov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Georgiy B. Shul'pin
- Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- Moscow 119991
- Russia
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21
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Sauer DC, Wadepohl H. Variable coordination modes of an active ligand periphery in 1,3-bis(2-pyridylimino)isoindolato copper(II) complexes. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Zheng B, Liu H, Feng J, Zhang J. Effect of coordination sphere of the copper center and Cu―Cu distance on catechol oxidase and nuclease activities of the copper complexes. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bin Zheng
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Hui Liu
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Jie Feng
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Jingyan Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of New Drug Design, School of Pharmacy; East China University of Science and Technology; Shanghai 200237 People's Republic of China
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23
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Meyerstein D. Is Measuring OH.Radical Scavenging a Reasonable Measurement of Antioxidant Properties? Isr J Chem 2014. [DOI: 10.1002/ijch.201300123] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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24
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Naqvi KR, Marsh J, Chechik V. Formation of self-inhibiting copper(ii) nanoparticles in an autocatalytic Fenton-like reaction. Dalton Trans 2014; 43:4745-51. [DOI: 10.1039/c3dt53617c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Autocatalytic Fenton-like decomposition of hydrogen peroxide in the presence of Cu(ii) and etidronic acid (HEDP) at high pH results in the nucleation of very stable mixed copper(ii) phosphate/carbonate nanoparticles which self-inhibit further reaction.
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Affiliation(s)
- Kazim R. Naqvi
- Department of Chemistry
- University of York
- York YO10 5DD, UK
| | | | - Victor Chechik
- Department of Chemistry
- University of York
- York YO10 5DD, UK
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25
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Jacobs DL, Chan BC, O'Connor AR. N-[2-(Pyridin-2-yl)ethyl]-derivatives of methane-, benzene- and toluenesulfonamide: prospective ligands for metal coordination. Acta Crystallogr C 2013; 69:1397-401. [PMID: 24192196 DOI: 10.1107/s0108270113025341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 09/12/2013] [Indexed: 11/10/2022] Open
Abstract
The molecular and supramolecular structures are reported of N-[2-(pyridin-2-yl)ethyl]methanesulfonamide, C8H12N2O2S, (I), N-[2-(pyridin-2-yl)ethyl]benzenesulfonamide, C13H14N2O2S, (II), and N-[2-(pyridin-2-yl)ethyl]toluenesulfonamide, C14H16N2O2S, (III). Although (II) and (III) are almost structurally identical, the N(amide)-C(ethyl)-C(ethyl)-C(pyridinyl) torsion angles for (I) and (II) are more closely comparable, with magnitudes of 175.37 (15)° for (I) and 169.04 (19)° for (II). This angle decreases dramatically with an additional methyl group in the para position of the sulfonamide substituent, resulting in a value of 62.9 (2)° for (III). In each of the three compounds there is an N-H...N hydrogen bond between the sulfonamide of one molecule and the pyridine N atom of a neighbor. Compound (I) forms hydrogen-bonded dimers, (II) uses its hydrogen bonding to connect supramolecular layers, and the hydrogen bonding of (III) connects linear chains to form layers. For arene-substituted (II) and (III), the different conformations afforded by the variable dihedral angles promote intermolecular π-π stacking in the benzene-substituted structure (II), but distorted intramolecular T-shaped π-stacking in the toluene-substituted structure (III), with a centroid-to-centroid distance of 4.9296 (10) Å.
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Affiliation(s)
- Danielle L Jacobs
- Department of Chemistry, Biochemistry and Physics, Rider University, 2083 Lawrenceville Road, Lawrenceville, NJ 08648, USA
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26
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Ito T, Akamatsu K, Takeuchi K, Satani M, Tanabe K, Nishimoto SI. Site-specific DNA oxidation by a dinuclear copper complex containing a photoisomerizable azobenzene ligand. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.06.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Chen T, Hu Y, Cen Y, Chu X, Lu Y. A Dual-Emission Fluorescent Nanocomplex of Gold-Cluster-Decorated Silica Particles for Live Cell Imaging of Highly Reactive Oxygen Species. J Am Chem Soc 2013; 135:11595-602. [DOI: 10.1021/ja4035939] [Citation(s) in RCA: 256] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tingting Chen
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yihui Hu
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yao Cen
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Xia Chu
- State Key Laboratory
of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical
Engineering, Hunan University, Changsha,
410082, PR China
| | - Yi Lu
- Department
of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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28
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Li L, Du K, Wang Y, Jia H, Hou X, Chao H, Ji L. Self-activating nuclease and anticancer activities of copper(II) complexes with aryl-modified 2,6-di(thiazol-2-yl)pyridine. Dalton Trans 2013; 42:11576-88. [PMID: 23843095 DOI: 10.1039/c3dt50395j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three mononuclear copper complexes [Cu(PDTP)Cl2] (PDTP = 4-phenyl-2,6-di(thiazole-2-yl)pyridine, CuPDTP), [Cu(ADTP)Cl2] (ADTP = 4-(anthracen-9-yl)-2,6-di(thiazole-2-yl)pyridine, CuADTP) and [Cu(BFDTP)Cl2] (BFDTP = 4-(benzofuran-2-yl)-2,6-di(thiazole-2-yl)pyridine, CuBFDTP) were synthesized and characterized. The X-ray single crystallography results indicated that the Cu(II) ions showed slightly distorted square pyramid coordination environments, and the ligands deviated from ideal planarity in all three compounds. Based on the DNA binding studies, it was demonstrated that these three complexes exhibited weak DNA binding strengths, which were most likely groove binding modes. CuPDTP, CuADTP and CuBFDTP induced efficient DNA cleavage in the dark without the addition of external catalysts (oxidant or reductant). In contrast, in the presence of reducing or oxidizing agents, the nuclease activities increased more than 10-fold. Mechanistic investigations revealed the participation of reactive oxygen species, which can be trapped by ROS radical scavengers and ROS sensors. In the same experimental conditions, the free ligands and CuCl2 did not display any DNA cleaving activity. This result indicates that the complexes, rather than their components, play a significant role in the nuclease reaction process and that DNA cleavage may be initiated in an oxidative pattern. The proposed mechanism was attributed to the in situ activation of molecular oxygen by the oxidation of the copper complexes. In the MTT cytotoxicity studies, the three Cu(II) complexes exhibited an antitumor activity against the HeLa, BEL-7402 and HepG2 tumor cell lines. The HeLa cells treated with Cu(II) complexes demonstrated marked changes in their nuclear morphology, which were detected by Hoechst 33258 nuclear staining and acridine orange/ethidium bromide (AO/EB) staining assays. Nuclear chromatin cleavage also was observed from alkaline single-cell gel electrophoresis (comet assay).
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Affiliation(s)
- Lüying Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, P R China
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29
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Zhu S, Qiu Z, Ni T, Zhao X, Yan S, Xing F, Zhao Y, Bai Y, Li M. Dinuclear complexes of copper and zinc with m-xylene/cyclohexane-linked bis-aspartic acids: Synthesis, characterization, dioxygen activation, and catalytic oxidation of nitrobenzene in pure aqueous solution. Dalton Trans 2013; 42:10898-911. [DOI: 10.1039/c3dt50923k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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30
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Hammond C, Jenkins RL, Dimitratos N, Lopez-Sanchez JA, ab Rahim MH, Forde MM, Thetford A, Murphy DM, Hagen H, Stangland EE, Moulijn JM, Taylor SH, Willock DJ, Hutchings GJ. Catalytic and mechanistic insights of the low-temperature selective oxidation of methane over Cu-promoted Fe-ZSM-5. Chemistry 2012; 18:15735-45. [PMID: 23150452 DOI: 10.1002/chem.201202802] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Indexed: 11/07/2022]
Abstract
The partial oxidation of methane to methanol presents one of the most challenging targets in catalysis. Although this is the focus of much research, until recently, approaches had proceeded at low catalytic rates (<10 h(-1)), not resulted in a closed catalytic cycle, or were unable to produce methanol with a reasonable selectivity. Recent research has demonstrated, however, that a system composed of an iron- and copper-containing zeolite is able to catalytically convert methane to methanol with turnover frequencies (TOFs) of over 14,000 h(-1) by using H(2)O(2) as terminal oxidant. However, the precise roles of the catalyst and the full mechanistic cycle remain unclear. We hereby report a systematic study of the kinetic parameters and mechanistic features of the process, and present a reaction network consisting of the activation of methane, the formation of an activated hydroperoxy species, and the by-production of hydroxyl radicals. The catalytic system in question results in a low-energy methane activation route, and allows selective C(1)-oxidation to proceed under intrinsically mild reaction conditions.
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Affiliation(s)
- Ceri Hammond
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, UK.
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31
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Xie Z, Yu Z, Chen Y, Lu G, Guo Z, He W. DNA cleavage behavior of a new p-xylyl spaced bisCu(BPA)Cl2 complex: the steric effect of a bulky p-xylyl-derived spacer. NEW J CHEM 2012. [DOI: 10.1039/c1nj20793h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Hong J, Zhuang Y, Ji X, Guo X. A long-lived luminescence and EPR bimodal lanthanide-based probe for free radicals. Analyst 2011; 136:2464-70. [PMID: 21556434 DOI: 10.1039/c0an00914h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed a novel spin-labeled terbium complex Tb(3+)/cs124-DTPA-TEMPO (1) by covalently labeling a nitroxide radical on the terbium complex for monitoring free radicals of various areas. This lanthanide complex probe shows a high EPR signal which resulted from the nitroxide radical moiety, and is weakly luminescent which resulted from the intramolecular quenching effect of the nitroxide radical on sensitised terbium luminescence. The intensity of both the EPR and luminescence can be modulated by eliminating the paramagnetism of the nitroxide radical through recognition of a carbon-centered radical analyte and thus gives a quantification of the analyte. We have preliminarily applied this probe in the luminescent detection of model carbon-centered radicals and hydroxyl radicals (·OH). This probe is water-soluble and contains lanthanide-luminescence properties, favorable for the time-resolved luminescence technique. The investigation of the intramolecular quenching process has showed that the labeled nitroxide radical quenches multiple excited states of the terbium complex, resulting in highly efficient quenching of terbium luminescence. This probe is the first example of intramolecular modulation of lanthanide luminescence by a nitroxide radical.
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Affiliation(s)
- Jinqing Hong
- The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, China
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33
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Page SE, Arnold WA, McNeill K. Assessing the contribution of free hydroxyl radical in organic matter-sensitized photohydroxylation reactions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:2818-25. [PMID: 21375262 DOI: 10.1021/es2000694] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Photochemical formation of reactive oxygen species from dissolved organic matter (DOM) is incompletely understood, especially in the case of hydroxyl radical (•OH) production. Many studies have used various probes to detect photochemically produced •OH from DOM, but the fundamental reactions of these probes are not necessarily specific for free •OH and may also detect lower-energy hydroxylation agents. In this study, two tests were applied that have previously been used as a diagnostic for the presence of free •OH: methane quenching of •OH and hydroxybenzoic acid (hBZA) product yields. Upon application of these two tests to a set of five DOM isolates, it was found that methane quenching and the hBZA ratio results were not necessarily consistent. Overall, the results provide compelling evidence that all isolates studied photochemically produce free •OH. The hydroxylating acitivity of Elliot Soil Humic Acid and Pony Lake Fulvic Acid, however, also had a significant contribution from a photochemically generated hydroxylating agent that is lower in energy than free •OH. Catalase quenching experiments were conducted to assess whether hydrogen peroxide was the immediate precursor to hydroxyl in these systems. In all cases, catalase addition slowed photohydroxylation of terephthalate, but the contribution of hydrogen peroxide photolysis was determined to be less than 50%.
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Affiliation(s)
- Sarah E Page
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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34
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Yue H, Zhu Y, Wang Y, Chen G. Investigation and improvement of DNA cleavage models of polyamide + Cu(II) nuclease + OOH- ligands bound to DNA. BMC STRUCTURAL BIOLOGY 2010; 10:35. [PMID: 20950488 PMCID: PMC2984560 DOI: 10.1186/1472-6807-10-35] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2010] [Accepted: 10/17/2010] [Indexed: 11/10/2022]
Abstract
Background Copper nucleases as a famous class of artificial metallonucleases have attracted considerable interest in relation to their diverse potentials not only as therapeutic agents but also in genomic researches. Copper nucleases present high efficient oxidative cleavage of DNA, in which DNA strand scission occurs generally after hydrogen atom abstracted from a sugar moiety. In order to achieve the selective cleavage of DNA sequences by copper nucleases, the DNA specific recognition agents of the Dervan-type hairpin and cyclic polyamides can be considered as proper carriers of copper nucleases. Investigation of the DNA cleavage selectivity of copper nucleases assisted by the hairpin and cyclic polyamides at the molecular level has not yet been elucidated. Results We carried out a series of molecular dynamics simulations for the nuclease [Cu(BPA)]2+ or [Cu(IDB)]2+ bound to the hairpin/cyclic polyamide and associated with DNA to investigate the selective DNA cleavage properties of Cu(II)-based artificial nucleases. The simulated results demonstrate that the DNA cleavage selectivity of the two nucleases assisted by the hairpin polyamide is improved efficiently. The [Cu(BPA)]2+ or [Cu(IDB)]2+ nuclease with a substrate OOH- bound to the hairpin polyamide can be stably located at the minor groove of DNA, and possibly abstracts H atom from the sugar of DNA. However, the DNA cleavage properties of the two nucleases assisted by the cyclic polyamide are significantly poor due to the rigidity of linking region between the cyclic polyamide and nuclease. With introduction of the flexible linker -CH2CH2CH2NH2, the modified cyclic polyamide can assist the two copper nucleases to improve the selective DNA cleavage properties efficiently. Conclusion A flexible linker and a proper binding site of the polyamide-type recognition agents play an important role in improving the DNA cleavage selectivity of copper nucleases. Current investigations provide an insight into the DNA cleavage specificities of chemical nucleases assisted by an appropriate nucleic acid recognition agent.
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Affiliation(s)
- Hongwei Yue
- College of Chemistry, Beijing Normal University, Beijing100875, China
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Tada M, Kohno M, Kasai S, Niwano Y. Generation mechanism of radical species by tyrosine-tyrosinase reaction. J Clin Biochem Nutr 2010; 47:162-6. [PMID: 20838572 PMCID: PMC2935156 DOI: 10.3164/jcbn.10-48] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Accepted: 05/27/2010] [Indexed: 12/13/2022] Open
Abstract
Alleviated melanin formation in the skin through inhibition of tyrosine-tyrosinase reaction is one of the major targets of cosmetics for whitening ability. Since melanin has a pivotal role for photoprotection, there are pros and cons of inhibition of melanin formation. This study applying electron spin resonance (ESR)-spin trapping method revealed that •H and •OH are generated through tyrosine-tyrosinase reaction. When deuterium water was used instead of H2O, the signal of 5,5-dimethyl-1-pyrroline N-oxide (DMPO)-H (a spin adduct of DMPO and •H) greatly decreased, whilst DMPO-OH (a spin adduct of DMPO and •OH) did not. Thus, it is suggested that •H was derived from H2O, and •OH through oxidative catalytic process of tyrosine to dopaquinone. Our study suggests that tyrosinase inhibitors might contribute to alleviate the oxidative damage of the skin by inhibiting •OH generation via the enzyme reaction.
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Affiliation(s)
- Mika Tada
- New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
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Nagarajan S, Kumbhar A, Varghese B, Das TM. Structural and DNA cleavage of sugar-derived Schiff base ligands and their dinuclear Cu(II) complexes. Carbohydr Res 2010; 345:1077-83. [DOI: 10.1016/j.carres.2010.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/13/2010] [Accepted: 01/20/2010] [Indexed: 10/19/2022]
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Page SE, Arnold WA, McNeill K. Terephthalate as a probe for photochemically generated hydroxyl radical. ACTA ACUST UNITED AC 2010; 12:1658-65. [DOI: 10.1039/c0em00160k] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Arbuse A, Font M, Martínez MA, Fontrodona X, Prieto MJ, Moreno V, Sala X, Llobet A. DNA-Cleavage Induced by New Macrocyclic Schiff base Dinuclear Cu(I) Complexes Containing Pyridyl Pendant Arms. Inorg Chem 2009; 48:11098-107. [DOI: 10.1021/ic901488j] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Xavier Fontrodona
- Serveis Científico-Tècnics Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Ma José Prieto
- Departament de Microbiologia Universitat de Barcelona, Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | | | - Xavier Sala
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona, Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona, Spain
- Departament de Química, Universitat Autònoma de Barcelona, Ceranyola del Vallès, E-0194 Barcelona, Spain
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Shao Y, Chen J. A Hydroxyl-bridged Dinuclear Copper Complex Having Planar Structure Shows Efficient DNA Cleavage Activity in Aqueous Solution. J SOLUTION CHEM 2009. [DOI: 10.1007/s10953-009-9457-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jia M, Tang Y, Lam YF, Green SA, Blough NV. Prefluorescent Nitroxide Probe for the Highly Sensitive Determination of Peroxyl and Other Radical Oxidants. Anal Chem 2009; 81:8033-40. [DOI: 10.1021/ac901374m] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Jia
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, and Chemistry Department, Michigan Technological University, Houghton, Michigan 49931
| | - Yu Tang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, and Chemistry Department, Michigan Technological University, Houghton, Michigan 49931
| | - Yiu-Fai Lam
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, and Chemistry Department, Michigan Technological University, Houghton, Michigan 49931
| | - Sarah A. Green
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, and Chemistry Department, Michigan Technological University, Houghton, Michigan 49931
| | - Neil V. Blough
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, and Chemistry Department, Michigan Technological University, Houghton, Michigan 49931
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Kou Y, Tian J, Li D, Gu W, Liu X, Yan S, Liao D, Cheng P. Synthesis, structure, magnetic properties and DNA cleavage of binuclear Cu(ii) Schiff-base complexes. Dalton Trans 2009:2374-82. [DOI: 10.1039/b819052f] [Citation(s) in RCA: 31] [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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