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Mandal C, Joshi S, Mishra S, Mukherjee D. Heteroleptic Magnesium n-Butyl on a Chemically Non-innocent 2-Anilidomethylpyridine Ligand Leading to Diverse Magnesium Hydrides. Inorg Chem 2024; 63:15692-15704. [PMID: 39110541 DOI: 10.1021/acs.inorgchem.4c01612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Molecular magnesium hydrides and hydride-rich clusters are of significant interest for applications ranging from catalysis and small molecule activation to hydrogen storage. Here, we investigate the 2-anilidomethylpyridine framework NNL as an ancillary support for magnesium organometallics with a special emphasis on hydrides. The proligand NNLH (N-[2,6-bis(1-methylethyl)phenyl]-α,6-diphenyl-2-pyridinemethanamine) gives [(NNL)Mg(nBu)(thf)] (1) by nbutane elimination from Mg(nBu)2(thf)n. A stronger donor such as DMAP replaces the THF from 1 to give [(NNL)Mg(nBu)(dmap)] (2). Both are air-sensitive, and 1 is adventitiously oxidized into [(NNL)Mg(μ-OnBu)]2 (32). The homoleptic [(NNL)2Mg] (8) is made from 1 and a second equiv of NNLH. 1's terminal nBu group is selectively protonated by HN(SiMe3)2 to give [(NNL)MgHMDS] (4; HMDS = N(SiMe3)2), whereas Ph3SiOH partially protonates the backbone anilide as well to give a mixture of [(NNL)Mg(OSiPh3)(thf)] (5) and free NNLH. Like HN(SiMe3)2, aprotic MeOTf also reacts by selectively abstracting the nBu group from 1 to give [(NNL)Mg(μ:κ2-O,O'-OTf)(thf)]2 (62). Interestingly, screening the common synthetic routes for magnesium hydrides leads to diverse outcomes upon varying the Mg precursors and hydride sources. 1 and PhSiH3 give the hydride cluster [{(NNL)2Mg2(μ-H)}2(μ-H)4Mg] (7), whereas 2 and PhSiH3 give the molecular complex [(NNLde)Mg(dmap)2] (9) with a dearomatized pyridyl backbone. 1 and HBpin (pinacolborane) give a product mixture, from which a different hydride cluster [(NNL)2Mg2(μ-H)}2(μ:κ2-O,O'-O2C2Me4)] (10) is identified, showing a rare instance of complete deborylation of a HBpin molecule. 1 and HBcat (catecholborane) also give a product mixture, one of which is the borylated ligand [(NNL)Bcat] (11). HBpin with 4 as the Mg precursor takes the ligand borylation route more selectively to give [(NNL)Bpin] (12). Last, 1 reacts with iPrNH2BH3 to give [(NNL)Mg{NH(iPr)BH3}] (13), which shows a slow and fractional conversion into the dinuclear mixed hydrido amidoborane [(NNL)2Mg2(μ-H){(μ-NH(iPr)BH3}] (14) by partial β-hydride elimination. In comparison, [(NNL)Mg(iPrNHBH3)(dmap)] (15) arising from the DMAP-bound 2 and iPrNH2BH3 is stable toward such elimination.
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Affiliation(s)
- Chhotan Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Shalini Joshi
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Sabyashachi Mishra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Debabrata Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
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2
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Mandal C, Joshi S, Das S, Mishra S, Mukherjee D. 2-Anilidomethylpyridine-Derived Three-Coordinate Zinc Hydride: The Journey Unveils Anilide Backbone's Reactive Nature. Inorg Chem 2024; 63:739-751. [PMID: 38127496 DOI: 10.1021/acs.inorgchem.3c03673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Low-coordinate heteroleptic zinc hydrides are catalytically important but rare and synthetically challenging. We herein report three-coordinate monomeric zinc hydride on a 2-anilidomethylpyridine framework (NNL). The synthetic success comes through systematically screening a few different routes from different precursors. During the process, the ligand's anilide backbone interestingly appears to be more reactive than Zn's terminal site to electrophilic Lewis and Brønsted acids. The proligand NNLH reacts with [Zn{N(SiMe3)2}2] and ZnEt2 to give [(NNL)ZnA] (A = N(SiMe3)2 (1), Et(2)). Both are inert to PhSiH3 and H2 but react with HBpin only through the internal Zn-Nanilide bond to give the borylated ligand NNLBpin (3). The reactions of 1 and 2 with Ph3EOH (E = C, Si) afford a series of divergent compounds like [(NNLH)Zn(OSiPh3)2] (4), [Zn3(OSiPh3)4Et2] (5), and [EtZn(OCPh3)] (6). But in all cases, it is invariably the Zn-Nanilide bond protonated by the -OH with equal or higher preference than the terminal Zn-N or Zn-C bonds. A DFT analysis rationalizes the origin of such a reactivity pattern. Realizing that an acid-free route might be the key, reacting [(NNL)Li] with ZnBr2 gives [(NNL)Zn(μ-Br)]2 (7), which on successively treating with KOSiPh3 and PhSiH3 gives the desired [(NNL)ZnH] (8) as a three-coordinate monomer with a terminal Zn-H bond. Estimating the ligand steric in 8 shows the openness in Zn's coordination sphere, a desired criterion for efficient catalysis. This and a positive influence of the pyridyl sidearm is reflected in 8's superior activity in hydroborating PhC(O)Me by HBpin in comparison to Jones' two-coordinate anilido zinc hydride.
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Affiliation(s)
- Chhotan Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Shalini Joshi
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Sanjay Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Sabyashachi Mishra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Debabrata Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
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3
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Hou Z, Lu Y, Zhang B, Motiur Rahman AFM, Zhao Y, Xi N, Wang N, Wang J. Investigation of the Relationship between Electronic Structures and Bioactivities of Polypyridyl Ru(II) Complexes. Molecules 2023; 28:5035. [PMID: 37446696 DOI: 10.3390/molecules28135035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/23/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Ruthenium (Ru)-based organometallic drugs have gained attention as chemotherapeutic and bioimaging agents due to their fewer side effects and excellent physical optical properties. Tuning the electronic structures of Ru complexes has been proven to increase the cytotoxicity of cancer cells and the luminescent efficiency of the analytical probes. However, the relationship between electronic structures and bioactivities is still unclear due to the potential enhancement of both electron donor and acceptor properties. Thus, we investigated the relationship between the electronic structures of Ru(II) complexes and cytotoxicity by optimizing the electron-withdrawing (complex 1), electron-neutral (complex 2), and electron-donating (complex 3) ligands through DFT calculations, bioactivities tests, and docking studies. Our results indicated that it was not sufficient to consider only either the effect of electron-withdrawing or electron-donating effects on biological activities instead of the total electronic effects. Furthermore, these complexes with electron-donating substituents (complex 3) featured unique "off-on" luminescent emission phenomena caused by the various "HOMO-LUMO" distributions when they interacted with DNA, while complex with electron-withdrawing substituent showed an "always-on" signature. These findings offer valuable insight into the development of bifunctional chemotherapeutic agents along with bioimaging ability.
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Affiliation(s)
- Zhiying Hou
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
| | - Yang Lu
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
| | - Bin Zhang
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, China
| | - A F M Motiur Rahman
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yufen Zhao
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
| | - Ning Xi
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
| | - Ning Wang
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
| | - Jinhui Wang
- Institute of Drug Discovery Technology (IDDT), Ningbo University, Ningbo 315211, China
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4
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Huang XK, Li LP, Zhou HY, Xiong MF, Fan JY, Ye BH. Switching the Photoreactions of Ir(III) Diamine Complexes between C-N Coupling and Dehydrogenation under Visible Light Irradiation. Inorg Chem 2022; 61:20834-20847. [PMID: 36520143 DOI: 10.1021/acs.inorgchem.2c03161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The selective photoreactions under mild conditions play an important role in synthetic chemistry. Herein, efficient and mild protocols for switching the photoreactions of Ir(III)-diamine complexes between the interligand C-N coupling and dehydrogenation are developed in the presence of O2 in EtOH solution. The photoreactions of achiral diamine complexes rac-[Ir(L)2(dm)](PF6) (L is 2-phenylquinoline or 2-(2,4-difluorophenyl)quinoline, dm is 1,2-ethylenediamine, 1,2-diaminopropane, 2-methyl-1,2-diamino-propane, or N,N'-dimethyl-1,2-ethylenediamine) are competitive in the oxidative C-N coupling and dehydrogenation at room temperature, which can be switched into the interligand C-N coupling reaction at 60 °C, affording hexadentate complexes in good to excellent yields, or the dehydrogenative reaction in the presence of a catalytic amount of TEMPO as an additive, affording imine complexes. Mechanism studies reveal that 1O2 is the major reactive oxygen species, and metal aminyl is the key intermediate in the formation of the oxidative C-N coupling and imine products in the photoreaction processes. These will provide a new and practical protocol for the synthesis of multidentate and imine ligands in situ via the postcoordinated strategy under mild conditions.
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Affiliation(s)
- Xiao-Kang Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Li-Ping Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Hai-Yun Zhou
- Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Ming-Feng Xiong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Jing-Yan Fan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
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5
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Stichauer R, Duvinage D, Langer R, Vogt M. Manganese(I) Tricarbonyl Complexes with Bidentate Pyridine-Based Actor Ligands: Reversible Binding of CO 2 and Benzaldehyde via Cooperative C–C and Mn–O Bond Formation at Ambient Temperature. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rasmus Stichauer
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Str. NW2, 28359 Bremen, Germany
| | - Daniel Duvinage
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Str. NW2, 28359 Bremen, Germany
| | - Robert Langer
- Institut für Chemie, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
| | - Matthias Vogt
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Str. NW2, 28359 Bremen, Germany
- Institut für Chemie, Naturwissenschaftliche Fakultät II, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
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6
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Hu X, Guo L, Liu M, Sun M, Zhang Q, Peng H, Zhang F, Liu Z. Formation of Iridium(III) and Rhodium(III) Amine, Imine, and Amido Complexes Based on Pyridine-Amine Ligands: Structural Diversity Arising from Reaction Conditions, Substituent Variation, and Metal Centers. Inorg Chem 2022; 61:10051-10065. [PMID: 35735792 DOI: 10.1021/acs.inorgchem.2c00984] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, we present the different coordination modes of half-sandwich iridium(III) and rhodium(III) complexes based on pyridine-amine ligands. The pyridyl-amine iridium(III) and rhodium(III) complexes, the corresponding oxidation pyridyl-imine products, and 16-electron pyridyl-amido complexes can be obtained through the change in reaction conditions (nitrogen/adventitious oxygen atmosphere, reaction time, and solvents) and structural variations in the metal and ligand. Overall, the reaction of pyridine-amine ligands with [(η5-C5(CH3)5)MCl2]2 (M = Ir or Rh) in the presence of adventitious oxygen afforded the oxidized pyridyl-imine complexes. The possible mechanism for the oxidation of iridium(III) and rhodium(III) amine complexes was confirmed by the detection of the byproduct hydrogen peroxide. Moreover, the formation of pyridyl-amine complexes was favored when nonpolar solvent CH2Cl2 was used instead of CH3OH. The rarely reported complex with [(η5-Cp*)IrCl3] anions can also be obtained without the addition of NH4PF6. The introduction of the sterically bulky i-Bu group on the bridge carbon of the ligand led to the formation of stable 16-electron pyridyl-amido complexes. The pyridyl-amine iridium(III) and rhodium(III) complexes were also synthesized under a N2 atmosphere, and no H2O2 was detected in the whole process. In particular, the aqueous solution stability and in vitro cytotoxicity toward A549 and HeLa human cancer cells of these complexes were also evaluated. No obvious selectivity was observed for cancer cells versus normal cells with these complexes. Notably, the represented complex 5a can promote an increase in the reactive oxygen species level and induce cell death via apoptosis.
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Affiliation(s)
- Xueyan Hu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Lihua Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Mengqi Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Mengru Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Qiuya Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Hongwei Peng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Fanjun Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Zhe Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
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7
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Xiong MF, Ye BH. Regioselective Dehydrogenation of the Secondary Amine Complexes into Imine Complexes under Visible-Light Irradiation. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming-Feng Xiong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
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8
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Singh A, Dey S, Panda S, Lahiri GK. Redox Induced Tunable Functionalization of Picolylamines on Selective Ru‐Platform. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Aditi Singh
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Sanchaita Dey
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Sanjib Panda
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Goutam Kumar Lahiri
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
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9
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Peng HL, Chen XY, Li LP, Ye BH. Mechanism study on photo-oxidation dehydrogenation of cyclometalated Ir(III) amino acid complexes. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119939] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Achard T, Egger L, Tortoreto C, Guénée L, Lacour J. Preparation and Structural Characterization of [CpRu(1,10‐phenanthroline)(CH
3
CN)][X] and Precursor Complexes (X=PF
6
, BAr
F
, TRISPHAT‐N). Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Thierry Achard
- Département de Chimie Organique Université de Genève Quai Ernest Ansermet 30 H-1211 Geneva 4 Switzerland
| | - Léo Egger
- Département de Chimie Organique Université de Genève Quai Ernest Ansermet 30 H-1211 Geneva 4 Switzerland
| | - Cecilia Tortoreto
- Département de Chimie Organique Université de Genève Quai Ernest Ansermet 30 H-1211 Geneva 4 Switzerland
| | - Laure Guénée
- Laboratoire de Cristallographie Université de Genève Quai Ernest Ansermet 24 CH-1211 Geneva 4 Switzerland
| | - Jérôme Lacour
- Département de Chimie Organique Université de Genève Quai Ernest Ansermet 30 H-1211 Geneva 4 Switzerland
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11
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Yun XJ, Zhu JW, Jin Y, Deng W, Yao ZJ. Half-Sandwich Ruthenium Complexes for One-Pot Synthesis of Quinolines and Tetrahydroquinolines: Diverse Catalytic Activity in the Coupled Cyclization and Hydrogenation Process. Inorg Chem 2020; 59:7841-7851. [DOI: 10.1021/acs.inorgchem.0c00955] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xue-Jing Yun
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Jing-Wei Zhu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yan Jin
- College of Science, Shanghai Institute of Technology, Shanghai 201418, China
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Wei Deng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Zi-Jian Yao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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12
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Panda S, Goel P, Lahiri GK. Non-Spectator Feature of α-Diimine Mimicked Di/tetrahydro-bisisoquinoline and Biimidazopyridine on {Ru(acac)2
} Platform. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000230] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Sanjib Panda
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai Powai India
| | - Puneet Goel
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai Powai India
| | - Goutam Kumar Lahiri
- Department of Chemistry; Indian Institute of Technology Bombay; 400076 Mumbai Powai India
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13
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Panda S, Singha Hazari A, Gogia M, Lahiri GK. Diverse Functionalization of Ruthenium-Chelated 2-Picolylamines: Oxygenation, Dehydrogenation, Cyclization, and N-Dealkylation. Inorg Chem 2020; 59:1355-1363. [DOI: 10.1021/acs.inorgchem.9b03065] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sanjib Panda
- Department of Chemistry, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai 400076, India
| | - Arijit Singha Hazari
- Department of Chemistry, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai 400076, India
| | - Manish Gogia
- Department of Chemistry, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai 400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology (IIT) Bombay, Powai, Mumbai 400076, India
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14
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Jana NC, Brandão P, Panja A. The first report of a tetra-azide bound mononuclear cobalt(iii) complex and its comparative biomimetic catalytic activity with tri-azide bound cobalt(iii) compounds. NEW J CHEM 2020. [DOI: 10.1039/d0nj02339f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Three new azide-bound cobalt(iii) complexes derived from three different triamines with extensive hydrogen bonded supramolecular chain structures and the role of their structural factors in oxidative coupling of o-aminophenols have been reported.
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Affiliation(s)
- Narayan Ch. Jana
- Postgraduate Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
| | - Paula Brandão
- Department of Chemistry
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Anangamohan Panja
- Postgraduate Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
- Department of Chemistry
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15
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Awasthi MK, Singh SK. Ruthenium Catalyzed Dehydrogenation of Alcohols and Mechanistic Study. Inorg Chem 2019; 58:14912-14923. [DOI: 10.1021/acs.inorgchem.9b02691] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mahendra K. Awasthi
- Catalysis Group, Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, India
| | - Sanjay K. Singh
- Catalysis Group, Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, India
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16
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Indira S, Vinoth G, Bharathi M, Bharathi S, Kalilur Rahiman A, Shanmuga Bharathi K. Catechol oxidase and phenoxazinone synthase mimicking activities of mononuclear Fe(III) and Co(III) complexes of amino-bis(phenolate)-based mixed ligands: Synthesis, spectral and electrochemical studies. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118988] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Jana NC, Patra M, Brandão P, Panja A. Synthesis, structure and diverse coordination chemistry of cobalt(III) complexes derived from a Schiff base ligand and their biomimetic catalytic oxidation of o-aminophenols. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Whole microwave syntheses of pyridylpyrazole and of Re and Ru luminescent pyridylpyrazole complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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19
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Panja A, Jana NC, Brandão P. Influence of anions and solvents on distinct coordination chemistry of cobalt and effect of coordination spheres on the biomimetic oxidation of o-aminophenols. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.02.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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20
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Kumar A, Hamdi A, Coffinier Y, Addad A, Roussel P, Boukherroub R, Jain SL. Visible light assisted oxidative coupling of benzylamines using heterostructured nanocomposite photocatalyst. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.01.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Richter S, Singh S, Draca D, Kate A, Kumbhar A, Kumbhar AS, Maksimovic-Ivanic D, Mijatovic S, Lönnecke P, Hey-Hawkins E. Antiproliferative activity of ruthenium(ii) arene complexes with mono- and bidentate pyridine-based ligands. Dalton Trans 2018; 45:13114-25. [PMID: 27264161 DOI: 10.1039/c6dt01782g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of Ru(II) arene complexes of mono- and bidentate N-donor ligands with carboxyl or ester groups and chlorido ancillary ligands were synthesised and structurally characterised. The complexes have a distorted tetrahedral piano-stool geometry. The binding interaction was studied with calf thymus DNA (CT-DNA) by absorption titration, viscosity measurement, thermal melting, circular dichroism, ethidium bromide displacement assay and DNA cleavage of plasmid DNA (pBR322), investigated by gel electrophoresis. The dichlorido complexes bind covalently to DNA in the dark, similar to cisplatin, while the monochlorido complexes bind covalently on irradiation, similar to cisplatin analogues. The compounds are selectively cytotoxic against several tumour cell lines and show specific nonlinear correlation between dose and activity. This phenomenon is closely related to their potential to act preferentially as inhibitors of cell division.
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Affiliation(s)
- Stefan Richter
- Universität Leipzig, Institut für Anorganische Chemie, Johannisallee 29, 04103 Leipzig, Germany.
| | - Sushma Singh
- Department of Chemistry, Savitribai Phule Pune University, Pune-411007, India
| | - Dijana Draca
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Anup Kate
- Department of Chemistry, Savitribai Phule Pune University, Pune-411007, India
| | - Anupa Kumbhar
- Department of Chemistry, Savitribai Phule Pune University, Pune-411007, India
| | - Avinash S Kumbhar
- Department of Chemistry, Savitribai Phule Pune University, Pune-411007, India
| | - Danijela Maksimovic-Ivanic
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Sanja Mijatovic
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
| | - Peter Lönnecke
- Universität Leipzig, Institut für Anorganische Chemie, Johannisallee 29, 04103 Leipzig, Germany.
| | - Evamarie Hey-Hawkins
- Universität Leipzig, Institut für Anorganische Chemie, Johannisallee 29, 04103 Leipzig, Germany.
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22
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Cuello-Garibo JA, Pérez-Gallent E, van der Boon L, Siegler MA, Bonnet S. Influence of the Steric Bulk and Solvent on the Photoreactivity of Ruthenium Polypyridyl Complexes Coordinated to l-Proline. Inorg Chem 2017; 56:4818-4828. [PMID: 28406644 PMCID: PMC5415878 DOI: 10.1021/acs.inorgchem.6b02794] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
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Ruthenium polypyridyl complexes are
good candidates for photoactivated chemotherapy (PACT) provided that
they are stable in the dark but efficiently photosubstitute one of
their ligands. Here the use of the natural amino acid l-proline
as a protecting ligand for ruthenium-based PACT compounds is investigated
in the series of complexes Λ-[Ru(bpy)2(l-prol)]PF6 ([1a]PF6; bpy = 2,2′-bipyridine
and l-prol = l-proline), Λ-[Ru(bpy)(dmbpy)(l-prol)]PF6 ([2a]PF6 and
[2b]PF6; dmbpy = 6,6′-dimethyl-2,2′-bipyridine),
and Λ-[Ru(dmbpy)2(l-prol)]PF6 ([3a]PF6). The synthesis of the tris-heteroleptic
complex bearing the dissymmetric proline ligand yielded only two of
the four possible regioisomers, called [2a]PF6 and [2b]PF6. Both isomers were isolated
and characterized by a combination of spectroscopy and density functional
theory calculations. The photoreactivity of all four complexes [1a]PF6, [2a]PF6, [2b]PF6, and [3a]PF6 was
studied in water (H2O) and acetonitrile (MeCN) using UV–vis
spectroscopy, circular dichroism spectroscopy, mass spectrometry,
and 1H NMR spectroscopy. In H2O, upon visible-light
irradiation in the presence of oxygen, no photosubstitution took place,
but the amine of complex [1a]PF6 was photooxidized
to an imine. Contrary to expectations, enhancing the steric strain
by the addition of two ([2b]PF6) or four ([3a]PF6) methyl substituents did not lead, in phosphate-buffered
saline (PBS), to ligand photosubstitution. However, it prevented photoxidation,
probably as a consequence of the electron-donating effect of the methyl
substituents. In addition, whereas [2b]PF6 was photostable in PBS, [2a]PF6 quantitatively
isomerized to [2b]PF6 upon light irradiation.
In pure MeCN, [2a]PF6 and [3a]PF6 showed non-selective photosubstitution of both the l-proline and dmbpy ligands, whereas the non-strained complex
[1a]PF6 was photostable. Finally, in H2O–MeCN mixtures, [3a]PF6 showed
selective photosubstitution of l-proline, thus demonstrating
the active role played by the solvent on the photoreactivity of this
series of complexes. The role of the solvent polarity and coordination
properties on the photochemical properties of polypyridyl complexes
is discussed. Three ruthenium polypyridyl l-proline complexes with increasing strain (R, R′ = H
or Me) were synthesized and their photoreactivities studied in phosphate-buffered
saline, pure acetonitrile (MeCN), and water−MeCN mixtures.
Depending on the number of methyl groups, on the presence of air,
and on the nature of the solvent, either photoisomerization, photooxidation
of l-proline, selective photosubstitution, or nonselective
photosubstitution was observed.
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Affiliation(s)
- Jordi-Amat Cuello-Garibo
- Leiden Institute of Chemistry, Universiteit Leiden , Einsteinweg 55 2333 CC, Leiden, The Netherlands
| | - Elena Pérez-Gallent
- Leiden Institute of Chemistry, Universiteit Leiden , Einsteinweg 55 2333 CC, Leiden, The Netherlands
| | - Lennard van der Boon
- Leiden Institute of Chemistry, Universiteit Leiden , Einsteinweg 55 2333 CC, Leiden, The Netherlands
| | - Maxime A Siegler
- Small Molecule X-ray Crystallography Facility, Johns Hopkins University , 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Universiteit Leiden , Einsteinweg 55 2333 CC, Leiden, The Netherlands
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23
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Thangavel S, Friedrich HB, Omondi B. Syntheses and structural investigations of new half sandwich Ir(III) and Rh(III) amine compounds and their catalytic transfer hydrogenation of aromatic ketones and aldehydes in water. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.molcata.2016.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Panja A, Jana NC, Brandão P. Influence of the first and second coordination spheres on the diverse phenoxazinone synthase activity of cobalt complexes derived from a tetradentate Schiff base ligand. NEW J CHEM 2017. [DOI: 10.1039/c7nj02015e] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Cobalt complexes as functional models for phenoxazinone synthase showing the influence of both first and second order coordination spheres on the catalytic activity and important intermediates in the ESI mass spectrum providing better information on the mechanistic pathway.
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Affiliation(s)
- Anangamohan Panja
- Postgraduate Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
| | - Narayan Ch. Jana
- Postgraduate Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
| | - Paula Brandão
- Department of Chemistry
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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25
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Anjana S, Donring S, Sanjib P, Varghese B, Murthy NN. Controlling the oxidation of bis-tridentate cobalt(ii) complexes having bis(2-pyridylalkyl)amines: ligand vs. metal oxidation. Dalton Trans 2017. [DOI: 10.1039/c7dt01792h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two bis-tridentate chelated cobalt(ii) complexes, which differ in the ligand structure by a methylene group, activate molecular oxygen (O2), and give different oxidation products.
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Affiliation(s)
- S. Anjana
- Department of Chemistry
- IIT Madras
- Chennai 600 036
- India
| | - S. Donring
- Deptartment of Chemistry
- Ewha Womans University
- South Korea
| | - P. Sanjib
- Department of Chemistry
- IIT Bombay
- India
| | - B. Varghese
- Sophisticated Analytical Instruments Facility (SAIF)
- IIT Madras
- India
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26
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Catalytic oxidation of primary aromatic alcohols using half sandwich Ir(III), Rh(III) and Ru(II) complexes: A practical and theoretical study. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.06.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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27
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Gichumbi JM, Friedrich HB, Omondi B. Solvato-polymorph of [(η6-C6H6)RuCl (L)]PF6 (L = (2,6-dimethyl-phenyl-pyridin-2-yl methylene amine). J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Synthesis and characterization of piano-stool ruthenium complexes with N,N ′-pyridine imine bidentate ligands and their application in styrene oxidation. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Binding interaction, conformational change, and molecular docking study of N-(pyridin-2-ylmethylene)aniline derivatives and carbazole Ru(II) complexes with human serum albumins. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Tang Z, Tejel C, Martinez de Sarasa Buchaca M, Lutz M, van der Vlugt JI, de Bruin B. Reactivity of Me-pma RhIand IrIComplexes upon Deprotonation and Their Application in Catalytic Carbene Carbonylation Reactions. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501302] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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Ahn SH, Lee H. Copper(II) Complexes ContainingN,N′-BidentateN-(Pyridin-2-ylmethyl)aniline and Its Derivatives: Synthesis, Structure and Magnetic Property. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10616] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Seoung Hyun Ahn
- Department of Chemistry and Green-Nano Materials Research Center; Kyungpook National University; Daegu-city 702-701 Republic of Korea
| | - Hyosun Lee
- Department of Chemistry and Green-Nano Materials Research Center; Kyungpook National University; Daegu-city 702-701 Republic of Korea
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32
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Tang Z, Otten E, Reek JNH, van der Vlugt JI, de Bruin B. Dynamic Ligand Reactivity in a Rhodium Pincer Complex. Chemistry 2015. [DOI: 10.1002/chem.201501453] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Arikawa Y, Yamaguchi S, Otsubo Y, Onishi M, Umakoshi K. Ortho−Nitrosation of Anilines on a Ruthenium Hydridotris(pyrazolyl)borato Complex and Oxidation of the Resulting Coordinated Amine Groups. Organometallics 2015. [DOI: 10.1021/om5012769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuhiro Arikawa
- Division of Chemistry and Materials Science, Graduate School of Engineering, and ‡Department of
Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan
| | - Soseki Yamaguchi
- Division of Chemistry and Materials Science, Graduate School of Engineering, and ‡Department of
Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan
| | - Yuji Otsubo
- Division of Chemistry and Materials Science, Graduate School of Engineering, and ‡Department of
Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan
| | - Masayoshi Onishi
- Division of Chemistry and Materials Science, Graduate School of Engineering, and ‡Department of
Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan
| | - Keisuke Umakoshi
- Division of Chemistry and Materials Science, Graduate School of Engineering, and ‡Department of
Applied Chemistry, Faculty of Engineering, Nagasaki University, Bunkyo-machi 1-14, Nagasaki 852-8521, Japan
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34
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Zhou J, Zhu BW, Luan J, Liu Z, Fang JK, Bao X, Peng G, Tucek J, Bao SS, Zheng LM. In air a spin crossover active iron(ii) complex of amine/NCBH3− ligands is converted to a low spin complex of imine/CN− ligands. Dalton Trans 2015; 44:20551-61. [DOI: 10.1039/c5dt03464g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A spin crossover FeII complex is in situ converted to a low spin complex in the presence of air, induced by the oxidative dehydrogenation of the tetradentate ligand and the generation of CN− from NCBH3−.
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Affiliation(s)
- Jian Zhou
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Bo-Wen Zhu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jie Luan
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Zhan Liu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jing-Kun Fang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Xin Bao
- School of Chemical Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
- State Key Laboratory of Coordination Chemistry
| | - Guo Peng
- Herbert Gleiter Institute of Nanoscience
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jiri Tucek
- Regional Centre of Advanced Technologies and Materials
- Department of Experimental Physics
- Faculty of Science
- Palacky University
- 78371 Olomouc
| | - Song-Song Bao
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Li-Min Zheng
- State Key Laboratory of Coordination Chemistry
- Coordination Chemistry Institute
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
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35
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Kim S, Kim D, Lee HJ, Lee H. Palladium(II) complexes containing N,N′-bidentate N-(pyridin-2-ylmethyl)aniline and its derivatives: Synthesis, structural characterisation, and methyl methacrylate polymerisation. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Wilson RK, Brooker S. Oxidative dehydrogenation of a new tetra-amine N4-donor macrocycle tunes the nickel(ii) spin state from high spin to low spin. Dalton Trans 2013; 42:12075-8. [DOI: 10.1039/c3dt51776d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Panja A, Guionneau P. The first example of a centro-symmetrical bis(imido)-bridged dinuclear cobalt(iii) complex: synthesis via oxidative dehydrogenation and phenoxazinone synthase activity. Dalton Trans 2013; 42:5068-75. [DOI: 10.1039/c3dt32788d] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Mori S, Mochida T. Preparation and Properties of Cyclopentadienyl Ruthenocenium Complexes with 1,2-Disubstituted Benzene Ligands: Competition between Chelate Coordination and Sandwich Coordination. Organometallics 2012. [DOI: 10.1021/om301073z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shotaro Mori
- Department of Chemistry, Graduate School of Science, Kobe University, Rokkodai, Nada, Hyogo 657-8501, Japan
| | - Tomoyuki Mochida
- Department of Chemistry, Graduate School of Science, Kobe University, Rokkodai, Nada, Hyogo 657-8501, Japan
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39
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Perekalin DS, Karslyan EE, Trifonova EA, Konovalov AI, Loskutova NL, Nelyubina YV, Kudinov AR. Synthesis of Ruthenium Half-Sandwich Complexes by Naphthalene Replacement in [CpRu(C10H8)]+. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201201112] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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40
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Günnaz S, Özdemir N, Dayan S, Dayan O, Çetinkaya B. Synthesis of Ruthenium(II) Complexes Containing Tridentate Triamine (′N ͡N ͡N′) and Bidentate Diamine Ligands (N ͡N′): as Catalysts for Transfer Hydrogenation of Ketones. Organometallics 2011. [DOI: 10.1021/om200470p] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Salih Günnaz
- Department of Chemistry, Ege University, 35100 İzmir, Turkey
| | - Namık Özdemir
- Department of Physics, Faculty of Art and Sciences, Ondokuz Mayıs University, 55139 Samsun, Turkey
| | - Serkan Dayan
- Department of Chemistry, Faculty of Science, Erciyes University, 38039 Kayseri, Turkey
| | - Osman Dayan
- Laboratory of Inorganic Synthesis and Molecular Catalysis, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey
| | - Bekir Çetinkaya
- Department of Chemistry, Ege University, 35100 İzmir, Turkey
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41
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Imino- and Amido-Pyridinate d-Block Metal Complexes in Polymerization/Oligomerization Catalysis. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/978-90-481-3815-9_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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42
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Khatri PK, Jain SL, Sivakumar K. LN, Sain B. Polyethylene glycol clicked Co(ii) Schiff base and its catalytic activity for the oxidative dehydrogenation of secondary amines. Org Biomol Chem 2011; 9:3370-4. [DOI: 10.1039/c0ob01163k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Taketoshi A, Koizumi TA, Kanbara T. Aerobic oxidative dehydrogenation of benzylamines catalyzed by a cyclometalated ruthenium complex. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.10.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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44
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Bianchini C, Giambastiani G, Luconi L, Meli A. Olefin oligomerization, homopolymerization and copolymerization by late transition metals supported by (imino)pyridine ligands. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.07.013] [Citation(s) in RCA: 265] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Taketoshi A, Tsujimoto A, Maeda S, Koizumi T, Kanbara T. Aerobic Oxidative Dehydrogenation of 2-Substituted Imidazolines Promoted by a Cyclometalated Ruthenium Catalyst. ChemCatChem 2010. [DOI: 10.1002/cctc.200900251] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Koizumi TA, Kanbara T. Oxidative Dehydrogenation Promoted by Cyclometalated Ruthenium Complexes. ACTA ACUST UNITED AC 2010. [DOI: 10.4019/bjscc.56.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | - Takaki Kanbara
- Graduate School of Pure and Applied Sciences, University of Tsukuba
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47
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Hintermann L, Xiao L, Labonne A, Englert U. [CpRu(η6-naphthalene)]PF6 as Precursor in Complex Synthesis and Catalysis with the Cyclopentadienyl-Ruthenium(II) Cation. Organometallics 2009. [DOI: 10.1021/om900333t] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lukas Hintermann
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Li Xiao
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Aurélie Labonne
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Ulli Englert
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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48
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Zhao M, Yu Z, Yan S, Li Y. Ruthenium(II) complex catalysts bearing a pyridyl-supported pyrazolyl-imine ligand for transfer hydrogenation of ketones. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.05.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Xie X, Mulcahy SP, Meggers E. Strategy for the stereochemical assignment of tris-heteroleptic Ru(II) complexes by NMR spectroscopy. Inorg Chem 2009; 48:1053-61. [PMID: 19105744 DOI: 10.1021/ic801744a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The relative stereochemistry of tris-heteroleptic ruthenium complexes [Ru(pp)(pp')(pp'')](PF(6))(2), where pp = 1,10-phenanthroline-4-carboxamide, pp' = 5,6-dimethyl-1,10-phenanthroline, and pp'' = 7,8-dimethyl dipyrido[3,2-a:2',3'-c]phenazine, was studied using NMR spectroscopy. The (1)H and (13)C spectra were assigned by using double-quantum-filtered correlation spectroscopy (DQF-COSY), heteronuclear single-quantum correlation (HSQC), and heteronuclear multiple-bond correlation (HMBC) experiments for the two diastereomers, each a pair of enantiomers. Nuclear Overhauser effect contacts between the neighboring ligands differentiated the two halves of each symmetrical ligand, thus enabling a full assignment of the NMR signals and an accurate determination of the relative stereochemistry of the complexes. The introduction of an additional chiral center to ligand pp by coupling it with L-lysine caused removal of the enantiomerism. Thus, four diastereomers were observed and their relative stereochemistry determined.
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Affiliation(s)
- Xiulan Xie
- Philipps-Universitat Marburg, 35043 Marburg, Germany.
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50
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Lee JJ, Yang FZ, Lin YF, Chang YC, Yu KH, Chang MC, Lee GH, Liu YH, Wang Y, Liu ST, Chen JT. Unsymmetrical bidentate ligands of α-aminoaldimines leading to sterically controlled selectivity of geometrical isomerism in square planar coordination. Dalton Trans 2008:5945-56. [DOI: 10.1039/b805674a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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