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Cocolios P, Kadish K. Characterization of Several Metalloporphyrins in Unusual Oxidation States. The Effect of Axial and Equatorial Ligands. Isr J Chem 2013. [DOI: 10.1002/ijch.198500022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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QIU AIMIN, SAWYER DONALDT. The Electrochemical Evaluation of the Metal-Carbon Bond Energies (−ΔGBF) of Alkylated Iron and Cobalt Porphyrins [(por)M-R]. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1002/(sici)1099-1409(199704)1:2<125::aid-jpp15>3.0.co;2-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The electron-transfer oxidation-reduction chemistry for the alkyl derivatives of iron and cobalt porphyrins [( por ) M III − R ] has been characterized on the basis of cyclic voltammetric and controlled-potential-electrolysis measurements. The electrogenerated anions of iron and cobalt porphyrins [( por ) M − and ( por −·) M −] are strong nucleophiles that react with alkyl halides ( RX ) via a nucleophilic displacement process to form metal-carbon bonds [( por ) M - R and ( por −·) M - R ]. The difference in the reduction potentials for RX and ( por ) M II provides an approximate measure of the ( por ) M - R bond-formation free energy (−ΔG BF ). The −ΔG BF values for iron porphyrins (14–35 kcal mol−1) and for cobalt porphyrins (20-38 kcal mol−1) depend on the electron density of the porphyrin ring ( OEP > TPP > Cl 8 TPP > F 20TPP) and the structure of the alkyl group (1° > 2° > 3°). Thus, the apparent metal-carbon bond energy (−ΔG BF ) for ( OEP ) Fe III- Bu -n is 28 ± 2 kcal mol−1, and for [( MeO )4 TPP ] Co III- Bu -n is 36 ± 2 kcal mol −1. The ( por −·) M − dianions react with carbon dioxide in an electrocatalysed reduction cycle to give CO and CO 32− via the apparent transient formation of a metal-carbon bond [( por −·) M - C ( O ) O −; −Δ G BF ≥ 12 kcal mol −1 for iron porphyrins].
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Affiliation(s)
- AIMIN QIU
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA
| | - DONALD T. SAWYER
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA
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Synthesis, electrochemistry, and structural properties of porphyrins with metal-carbon single bonds and metal-metal bonds. STRUCTURE AND BONDING 2005. [DOI: 10.1007/bfb0036792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Pawlicki M, Latos-Grazyński L. Reactivity of Iron(II) 5,10,15,20-Tetraaryl-21-oxaporphyrin with Arylmagnesium Bromide: Formation of Paramagnetic Six-Coordinate Complexes with Two Axial Aryl Groups. Inorg Chem 2004; 43:5564-71. [PMID: 15332808 DOI: 10.1021/ic0495463] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coordination of sigma-aryl carbanions by chloroiron(II) 5,20-ditolyl-10,15-diphenyl-21-oxaporphyrin (ODTDPP)Fe(II)Cl has been followed by (1)H NMR spectroscopy. Addition of pentafluorophenyl Grignard reagent (C(6)F(5))MgBr to the toluene solution of (ODTDPP)Fe(II)Cl in the absence of dioxygen at 205 K resulted in the formation of the high-spin (ODTDPP)Fe(II)(C(6)F(5)). The titration of (ODTDPP)Fe(II)Cl with a solution of (C(6)H(5))MgBr carried at 205 K yields a rare six-coordinate species which binds two sigma-aryl ligands [(ODTDPP)Fe(II)(C(6)H(5))(2)](-). Warming of the [(ODTDPP)Fe(II)(C(6)H(5))(2)](-) solution above 270 K results in the decomposition to mono-sigma-phenyliron species (ODTDPP)Fe(II)(C(6)H(5)). Controlled oxidation of [(ODTDPP)Fe(II)(C(6)H(5))(2)](-) with Br(2) affords (ODTDPP)Fe(III)(C(6)H(5))Br, which demonstrates a typical (1)H NMR pattern of low-spin sigma-aryl iron(III) porphyrin. The considered oxidation mechanism involves the (ODTDPP)Fe(III)(C(6)H(5))(2) species, which is readily reduced to the iron(I) 21-oxaporphyrin, followed by oxidation with Br(2) and replacement of one bromide anion by aryl substituent. The (1)H NMR spectra of paramagnetic iron complexes have been examined in detail. Functional group assignments have been made with the use of selective deuteration. The peculiar (1)H NMR spectral features of [(ODTDPP)Fe(II)(p-CH(3)C(6)H(4))(2)](-) (sigma-p-tolyl: ortho, 30.8; meta, 53.6; para-CH(3), 42.1; furan: -16.0; beta-H pyrrole: -27.5, -34.3, -41.8 ppm, at 205 K) are without a parallel to any iron(II) porphyrin or heteroporphyrin and indicate a profound alteration of the electronic structure of iron(II) porphyrin upon the coordination of two sigma-aryls.
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Affiliation(s)
- Miłosz Pawlicki
- Department of Chemistry, University of Wrocław 14 F. Joliot-Curie Street, Wrocław 50 383, Poland
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Lord PA, Latos-Grazyński L, Balch AL. Reactivity of iron verdohemes with phenylmagnesium bromide. Formation of paramagnetic iron-phenyl complexes. Inorg Chem 2002; 41:1011-4. [PMID: 11849107 DOI: 10.1021/ic010948+] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pamela A Lord
- Department of Chemistry, University of California, Davis, California 95616, USA
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Kadish KM, Caemelbecke EV, Gueletii E, Fukuzumi S, Miyamoto K, Suenobu T, Tabard A, Guilard R. Kinetic and Thermodynamic Studies of Iron(III) and Iron(IV) σ-Bonded Porphyrins. Formation and Reactivity of [(OEP)Fe(R)]n+, Where OEP Is the Dianion of Octaethylporphyrin (n = 0, 1, 2, 3) and R = C6H5, 3,4,5-C6F3H2, 2,4,6-C6F3H2, C6F4H, or C6F5. Inorg Chem 1998. [DOI: 10.1021/ic9714706] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Eric Van Caemelbecke
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Elena Gueletii
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Shunichi Fukuzumi
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Kenichi Miyamoto
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Tomoyoshi Suenobu
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Alain Tabard
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
| | - Roger Guilard
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641, Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan, and LIMSAG, UMR 5633, Université de Bourgogne, Faculté des Sciences “Gabriel”, 6 Boulevard Gabriel, 21000 Dijon, France
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Stuzhin PA, Mal’chugina OV, Wolowiec S, Latos-Grazynski L, Berezin BD. Formation of stable σ-aryliron(III) complexes from the reaction of chloroiron(III) octaphenyltetraazaporphyrinate with aryl Grignard reagents. MENDELEEV COMMUNICATIONS 1998. [DOI: 10.1070/mc1998v008n04abeh000974] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kinetics, mechanism and thermodynamics of iron carbon bond dissociation in organoiron porphyrin complexes. Inorganica Chim Acta 1996. [DOI: 10.1016/0020-1693(95)04887-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Van Caemelbecke E, Will S, Autret M, Adamian VA, Lex J, Gisselbrecht JP, Gross M, Vogel E, Kadish KM. Electrochemical and Spectral Characterization of Iron Corroles in High and Low Oxidation States: First Structural Characterization of an Iron(IV) Tetrapyrrole π Cation Radical. Inorg Chem 1996; 35:184-192. [DOI: 10.1021/ic9509037] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric Van Caemelbecke
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Stefan Will
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Marie Autret
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Victor A. Adamian
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Johann Lex
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Jean-Paul Gisselbrecht
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Maurice Gross
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Emanuel Vogel
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
| | - Karl M. Kadish
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5641, Institut
für Organische
Chemie, Universität zu Köln, Greinstrasse 4, D-50939 Köln,
Germany, and Département de Chimie,
URA CNRS 405, Université Louis Pasteur, 67000 Strasbourg, France
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A model for the ‘shuttling ligand’ of cytochrome c oxidase. The synthesis and spectroscopic characterization of allyl-Fe(TPP) and CpFe(TPP). Inorganica Chim Acta 1995. [DOI: 10.1016/0020-1693(94)04277-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
The reactions of arylhydrazines (ArNHNH2) or aryldiazenes (ArN = NH) with simple iron porphyrins or with hemoproteins that have relatively open active sites, including hemoglobin, myoglobin, cytochrome P450, chloroperoxidase, catalase, prostaglandin synthase, and indoleamine-2,3-dioxygenase yield sigma-bonded aryl-iron complexes. Denaturation of the protein complexes under aerobic, acidic conditions shifts the aryl group to the porphyrin nitrogens and produces mixtures of the four possible N-arylprotoporphyrin IX regioisomers. The regioisomers are obtained in approximately equal amounts if the iron-to-nitrogen shift occurs outside of the protein but the ratio of isomers differs if the rearrangement is controlled by the protein. Only in the case of cytochrome P450 enzymes can the shift be induced to occur without denaturation of the protein. The isomer ratios obtained when the shift occurs in the intact active site provide direct experimental information on the active site topology and dynamics. Topological information has thus been obtained for cytochromes P450 1A1, 1A2, 2B1, 2B2, 2B4, 2B10, 2B11, 2E1, 11A1, 51, 101, 102, and 108. In contrast to hemoproteins with open active sites, conventional peroxidases react with arylhydrazines to give delta-meso-aryl adducts and covalent protein adducts. Reaction with the delta-meso edge but not the heme iron provides key evidence that restricting access of substrates to the ferryl oxygen helps direct the reaction towards peroxidase rather than peroxygenase catalysis.
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Affiliation(s)
- P R Ortiz de Montellano
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of California, San Francisco 94143-0446, USA
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12
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Fukuzumi S, Kitano T, Ishikawa M, Matsuda Y. Electron transfer chemistry of hydride and carbanion donors. Hydride and carbanion transfer via electron transfer. Chem Phys 1993. [DOI: 10.1016/0301-0104(93)80244-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Shaffer CD, Straub DK. The synthesis and spectral properties of hemins derived from tetra(p-tolyl)-porphyrin. Inorganica Chim Acta 1989. [DOI: 10.1016/s0020-1693(00)80830-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Bottomley LA, Gorce JN. The electrochemistry of thiocarbonyl and selenocarbonyl iron octaethylporphyrins. Polyhedron 1988. [DOI: 10.1016/s0277-5387(00)80363-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Battioni JP, Dupré D, Mansuy D. Synthèse de complexes σ-vinyliques de ferriporphyrines et leur oxydation en N-vinyl-porphyrines: Rétention de la stéréochimie de la double liaison. J Organomet Chem 1987. [DOI: 10.1016/s0022-328x(00)99778-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Etude par spectroscopie raman de resonance du schema de coordination du fer de derives ferriporphyriniques a liaison σ metal-carbone. J Organomet Chem 1986. [DOI: 10.1016/s0022-328x(00)99732-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Alkylsulfonato(porphyrinato)gallium(III). Determination de la structure cristalline de la methylsulfonato-(octaethyl-2,3,7,8,12,13,17,18-porphyrinato)-gallium(III). J Organomet Chem 1986. [DOI: 10.1016/0022-328x(86)80127-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Castro C, Kishore D. α-bonded methyliron porphyrins? The conversion of iron(III) to magnesium(II) porphyrins by methyl-Grignards. J Organomet Chem 1985. [DOI: 10.1016/0022-328x(85)87266-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Lagrange G, Cocolios P, Guillard R. Nouveaux complexes nitrosyl d'alkyl(aryl)ferriporphyrines a liaison σ metal—carbone. J Organomet Chem 1984. [DOI: 10.1016/s0022-328x(00)98684-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Coutsolelos A, Guilard R. Synthese et caracteristiques physicochimiques de gallioporphyrines a liaison σ metalcarbone. J Organomet Chem 1983. [DOI: 10.1016/s0022-328x(00)99222-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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22
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Synthese et caracterisation par RMN 1H d'alkyl(aryl)ferriporphyrines a liaison σ metalcarbone. J Organomet Chem 1983. [DOI: 10.1016/0022-328x(83)80109-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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