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Meng MZ, Shi GD, Cheng LL, Chen YP, Zhang YF, Lin W. Two-dimensional correlation infrared spectroscopy study on vanadoborate anionic skeleton regulated by countercations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 311:123992. [PMID: 38330758 DOI: 10.1016/j.saa.2024.123992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/15/2024] [Accepted: 01/31/2024] [Indexed: 02/10/2024]
Abstract
Two novel vanadoborate compounds, [Cu(en)2]3[Li(H2O)]4[Li(H2O)3]2[V12B18O50(OH)10(H2O)]2·33.5H2O (1) and (H2en)4[Li(H2O)]4[V12B18O55(OH)5(H2O)]·14H2O (2), were synthesized via hydrothermal synthesis under identical conditions except for temperature. Structural analysis revealed that although both contain [V12B18O60]n- cluster anion, the different countercations potentially lead to variations in the [V12B18O60]n- cluster anion skeletons. In compound 1, the V4+/V5+ ratio was 10:2; while in compound 2 the ratio was 11:1. It is speculated that different countercations may influence the valence states of cluster anions. In this study, quantum chemical calculations revealed that the aromaticity and activity of the two compounds were different, and two-dimensional correlation infrared spectroscopy (2D-COS-IR) under magnetic perturbation confirmed that distinct response peaks of functional group vibrations to the magnetic field due to the different V4+/V5+ ratios and aromaticity of the two compounds. An electrochemical analysis revealed that compound 2 exhibits higher electrocatalytic activity. The results of quantum chemical calculations are aligned not only with the changes in the 2D-COS-IR spectra but also with the conclusions obtained from experiments on electrochemical properties. Overall, this work proposes a novel strategy for interpreting the alteration of vanadoborate anionic skeleton due to the introduction of different countercations by combining 2D-COS-IR with quantum chemical calculations.
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Affiliation(s)
- Ming-Ze Meng
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China
| | - Gui-Dong Shi
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China
| | - Ling-Ling Cheng
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China
| | - Yi-Ping Chen
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
| | - Yong-Fan Zhang
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China
| | - Wei Lin
- College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China.
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2
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Wannipurage D, D'Aniello S, Pappalardo D, Kulathungage LW, Ward CL, Anderson DP, Groysman S, Mazzeo M. Simple magnesium alkoxides: synthesis, molecular structure, and catalytic behaviour in the ring-opening polymerization of lactide and macrolactones and in the copolymerization of maleic anhydride and propylene oxide. Dalton Trans 2023; 52:8077-8091. [PMID: 37232395 PMCID: PMC11066581 DOI: 10.1039/d3dt00785e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The synthesis of two chiral bulky alkoxide pro-ligands, 1-adamantyl-tert-butylphenylmethanol HOCAdtBuPh and 1-adamantylmethylphenylmethanol HOCAdMePh, is reported and their coordination chemistry with magnesium(II) is described and compared with the coordination chemistry of the previously reported achiral bulky alkoxide pro-ligand HOCtBu2Ph. Treatment of n-butyl-sec-butylmagnesium with two equivalents of the racemic mixture of HOCAdtBuPh led selectively to the formation of the mononuclear bis(alkoxide) complex Mg(OCAdtBuPh)2(THF)2. 1H NMR spectroscopy and X-ray crystallography suggested the selective formation of the C2-symmetric homochiral diastereomer Mg(OCRAdtBuPh)2(THF)2/Mg(OCSAdtBuPh)2(THF)2. In contrast, the less sterically encumbered HOCAdMePh led to the formation of dinuclear products indicating only partial alkyl group substitution. The mononuclear Mg(OCAdtBuPh)2(THF)2 complex was tested as a catalyst in different reactions for the synthesis of polyesters. In the ROP of lactide, Mg(OCAdtBuPh)2(THF)2 demonstrated very high activity, higher than that shown by Mg(OCtBu2Ph)2(THF)2, although with moderate control degrees. Both Mg(OCAdtBuPh)2(THF)2 and Mg(OCtBu2Ph)2(THF)2 were found to be very effective in the polymerization of macrolactones such as ω-pentadecalactone (PDL) and ω-6-hexadecenlactone (HDL) also under mild reaction conditions that are generally prohibitive for these substrates. The same catalysts demonstrated efficient ring-opening copolymerization (ROCOP) of propylene oxide (PO) and maleic anhydride (MA) to produce poly(propylene maleate).
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Affiliation(s)
- Duleeka Wannipurage
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
| | - Sara D'Aniello
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Daniela Pappalardo
- Dipartimento di Scienze e Tecnologie, Università del Sannio, via de Sanctis snc, 82100 Benevento, Italy
| | | | - Cassandra L Ward
- Lumigen Instrument Center, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA
| | - Dennis P Anderson
- Lumigen Instrument Center, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, USA
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
| | - Mina Mazzeo
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
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3
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Groysman S, Kurup SS. Catalytic synthesis of azoarenes via metal-mediated nitrene coupling. Dalton Trans 2022; 51:4577-4589. [DOI: 10.1039/d2dt00228k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Various valuable properties of azoarenes (“azo dyes”), including their vivid colors and their facile cis-trans photoisomerization, lead to their wide use in the chemical industry. As a result, ~700,000 metric...
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Kuzhalmozhi Madarasi P, Sivasankar C. Grignard reagent dictated copper(I) phosphines catalyzed reductive coupling of diazo compounds: The chemistry beyond carbene generation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | - Chinnappan Sivasankar
- Catalysis and Energy Laboratory, Department of Chemistry Pondicherry University Pondicherry India
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5
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Hyun SM, Reid KA, Vali SW, Lindahl PA, Powers DC. Cis-Divacant Octahedral Fe(II) in a Dimensionally Reduced Family of 2-(Pyridin-2-yl)pyrrolide Complexes. Inorg Chem 2021; 60:15617-15626. [PMID: 34590844 PMCID: PMC8969077 DOI: 10.1021/acs.inorgchem.1c02240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four-coordinate transition-metal complexes can adopt a diverse array of coordination geometries, with square planar and tetrahedral coordination being the most prevalent. Previously, we reported the synthesis of a trinuclear Fe(II) complex, Fe3TPM2, supported by a 3-fold-symmetric 2-pyridylpyrrolide ligand [i.e., tris(5-(pyridin-2-yl)-1H-pyrrol-2-yl)methane] that featured a rare cis-divacant octahedral (CDO) geometry at each Fe(II) center. Here, a series of truncated 2-pyridylpyrrolide ligands are described that support mono- and binuclear Fe(II) complexes that also exhibit CDO geometries. Metalation of the tetradentate ligand bis[5-(pyridin-2-yl)-1H-pyrrol-2-yl]methane (H2BPM) in tetrahydrofuran (THF) results in the binuclear complex Fe2(BPM)2(THF)2 in which both Fe(II) ions are octahedrally coordinated. The coordinated THF solvent ligands are labile: THF dissociation leads to Fe2(BPM)2, which features five-coordinate Fe(II) ions. The Fe-Fe distance in these binuclear complexes can be elongated by ligand methylation. Metalation of bis[5-(6-methylpyridin-2-yl)-1H-pyrrol-2-yl]methane (H2BPMMe) in THF leads to the formation of four-coordinate, CDO Fe(II) centers in Fe(BPMMe)2. Further ligand truncation affords bidentate ligands 2-(1H-pyrrol-2-yl)pyridine (PyrPyrrH) and 2-methyl-6-(1H-pyrrol-2-yl)pyridine (PyrMePyrrH). Metalation of these ligands in THF affords six-coordinate complexes Fe(PyrPyrr)2(THF)2 and Fe(PyrMePyrr)2(THF)2. Dissociation of labile solvent ligands provides access to four-coordinate Fe(II) complexes. Ligand disproportionation at Fe(PyrPyrr)2 results in the formation of Fe(PyrPyrr)3 and Fe(0). Ligand methylation suppresses this disproportionation and enables isolation of Fe(PyrMePyrr)2, which is rigorously CDO. Complete ligand truncation, by separating the 2-pyridylpyrrolide ligands into the constituent monodentate pyridyl and pyrrolide donors, affords Fe(Pyr)2(Pyrr)2 in which Fe(II) is tetrahedrally coordinated. Computational analysis indicates that the potential energy surface that dictates the coordination geometry in this family of four-coordinate complexes is fairly flat in the vicinity of CDO coordination. These synthetic studies provide the structural basis to explore the implications of CDO geometry on Fe-catalyzed reactions.
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Affiliation(s)
- Sung-Min Hyun
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - Kaleb A. Reid
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - Shaik Waseem Vali
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - Paul A. Lindahl
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
| | - David C. Powers
- Department of Chemistry, Texas A&M University, College Station, TX 77843, United States
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6
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Tailor SB, Manzotti M, Smith GJ, Davis SA, Bedford RB. Cobalt-Catalyzed Coupling of Aryl Chlorides with Aryl Boron Esters Activated by Alkoxides. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05557] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Sanita B. Tailor
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Mattia Manzotti
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Gavin J. Smith
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Sean A. Davis
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Robin B. Bedford
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
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7
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Grass A, Kulathungage LW, Wannipurage D, Yousif M, Ward CL, Groysman S. Synthesis, characterization, and alkoxide transfer reactivity of dimeric Tl 2(OR) 2 complexes. Dalton Trans 2021; 50:2501-2509. [PMID: 33514951 DOI: 10.1039/d0dt03917a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of LiOCtBu2Ph with TlPF6 forms the dimeric Tl2(OCtBu2Ph)2 complex, a rare example of a homoleptic thallium alkoxide complex demonstrating formally two-coordinate metal centers. Characterization of Tl2(OCtBu2Ph)2 by 1H and 13C NMR spectroscopy and X-ray crystallography reveals the presence of two isomers differing by the mutual conformation of the alkoxide ligands, and by the planarity of the central Tl-O-Tl-O plane. Tl2(OCtBu2Ph)2 serves as a convenient precursor to the formation of old and new [M(OCtBu2Ph)n] complexes (M = Cr, Fe, Cu, Zn), including a rare example of T-shaped Zn(OCtBu2Ph)2(THF) complex, which could not be previously synthesized using more conventional LiOR/HOR precursors. The reaction of [Ru(cymene)Cl2]2 with Tl2(OCtBu2Ph)2 results in the formation of a ruthenium(ii) alkoxide complex. For ruthenium, the initial coordination of the alkoxide triggers C-H activation at the ortho-H of [OCtBu2Ph] which results in its bidentate coordination. In addition to Tl2(OCtBu2Ph)2, related Tl2(OCtBu2(3,5-Me2C6H3))2 was also synthesized, characterized, and shown to exhibit similar reactivity with iron and ruthenium precursors. Synthetic, structural, and spectroscopic characterizations are presented.
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Affiliation(s)
- Amanda Grass
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
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8
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Elinburg JK, Doerrer LH. Synthesis, structure, and electronic properties of late first-row transition metal complexes of fluorinated alkoxides and aryloxides. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Grass A, Bellow JA, Morrison G, Zur Loye HC, Lord RL, Groysman S. One electron reduction transforms high-valent low-spin cobalt alkylidene into high-spin cobalt(ii) carbene radical. Chem Commun (Camb) 2020; 56:8416-8419. [PMID: 32579653 DOI: 10.1039/d0cc03028g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One electron reduction of formally CoIV(OR)2(CPh2) forms the [CoII(OR)2(CPh2)]- anion. Whereas low-spin Co(OR)2([double bond, length as m-dash]CPh2) demonstrated significant alkylidene character, the high-spin [Co(OR)2(CPh2)]- anion features a rare Co(ii)-carbene radical. Treatment of [Co(OR)2(CPh2)][CoCp*2] with xylyl isocyanide triggers formation of two new C-C bonds, and is likely mediated by nucleophilic attack of deprotonated CoCp*2+ on a transient ketenimine.
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Affiliation(s)
- Amanda Grass
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
| | - James A Bellow
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
| | - Gregory Morrison
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Hans-Conrad Zur Loye
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Richard L Lord
- Department of Chemistry, Grand Valley State University, 1 Campus Dr, Allendale, MI 49401, USA.
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
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10
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Wannipurage D, Hollingsworth TS, Santulli F, Cozzolino M, Lamberti M, Groysman S, Mazzeo M. Synthesis of a mononuclear magnesium bis(alkoxide) complex and its reactivity in the ring-opening copolymerization of cyclic anhydrides with epoxides. Dalton Trans 2020; 49:2715-2723. [PMID: 32051999 DOI: 10.1039/c9dt04274a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of a new mononuclear magnesium complex with a bulky bis(alkoxide) ligand environment and its reactivity in ring-opening polymerization (ROP) and ring-opening copolymerization (ROCOP) are reported. Reaction of n-butyl-sec-butylmagnesium with two equivalents of HOR (HOR = di-tert-butylphenylmethanol, HOCtBu2Ph) formed Mg(OR)2(THF)2. The reaction proceeded via the Mg(OR)(sec-Bu)(THF)2 intermediate that was independently synthesized by treating n-butyl-sec-butylmagnesium with one equivalent of HOR. Mg(OR)2(THF)2 led to active albeit not well-controlled ROP of rac-lactide. In contrast, well-controlled ROCOP of epoxides with cyclic anhydrides was observed, including efficient and alternating copolymerization of phthalic anhydride with cyclohexene oxide as well as rare copolymerization of phthalic anhydride with limonene oxide and terpolymerization of phthalic anhydride with both cyclohexene oxide and limonene oxide. In addition, novel copolymerization of dihydrocoumarin with limonene oxide is described.
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Affiliation(s)
- Duleeka Wannipurage
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
| | | | - Federica Santulli
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Mariachiara Cozzolino
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Marina Lamberti
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202, USA.
| | - Mina Mazzeo
- Department of Chemistry and Biology "A. Zambelli" University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy.
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11
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Grass A, Wannipurage D, Lord RL, Groysman S. Group-transfer chemistry at transition metal centers in bulky alkoxide ligand environments. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Kurup SS, Wannipurage D, Lord RL, Groysman S. Tying the alkoxides together: an iron complex of a new chelating bulky bis(alkoxide) demonstrates selectivity for coupling of non-bulky aryl nitrenes. Chem Commun (Camb) 2019; 55:10780-10783. [PMID: 31432810 DOI: 10.1039/c9cc05319k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
New chelating bis(alkoxide) ligand H2[OO]Ph and its iron(ii) complex Fe[OO]Ph(THF)2 are described. The coordination of the ligand to the metal center is reminiscent of the coordination of two monodentate alkoxides in previously reported Fe(OR)2(THF)2 species. Fe[OO]Ph(THF)2 catalyzes selective and efficient dimerization of non-bulky aryl nitrenes to yield the corresponding azoarenes.
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Affiliation(s)
- Sudheer S Kurup
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
| | - Duleeka Wannipurage
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
| | - Richard L Lord
- Department of Chemistry, Grand Valley State University, 1 Campus Dr, Allendale, MI 49401, USA.
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
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13
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Grass A, Stoian SA, Lord RL, Groysman S. Transition metal-mediated reductive coupling of diazoesters. Chem Commun (Camb) 2019; 55:8458-8461. [PMID: 31263817 DOI: 10.1039/c9cc03771c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first transition metal mediated reductive coupling of diazoesters through the terminal nitrogens is reported. The resulting tetrazene-bridged bis(diazenylacetate) serves as a novel dinucleating ligand to iron(III). DFT calculations suggest that the reductive coupling takes place via a κ2 intermediate, which induces significant radical character on the terminal nitrogen.
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Affiliation(s)
- Amanda Grass
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
| | - Sebastian A Stoian
- Department of Chemistry, University of Idaho, 875 Perimeter Dr, Moscow, ID 83843, USA
| | - Richard L Lord
- Department of Chemistry, Grand Valley State University, 1 Campus Dr, Allendale, MI 49401, USA.
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA.
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14
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Grass A, Dewey NS, Lord RL, Groysman S. Ketenimine Formation Catalyzed by a High-Valent Cobalt Carbene in Bulky Alkoxide Ligand Environment. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00911] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Amanda Grass
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Nicholas S. Dewey
- Department of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Richard L. Lord
- Department of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
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Abdulazeez I, Basheer C, Al-Saadi AA. A selective detection approach for copper(ii) ions using a hydrazone-based colorimetric sensor: spectroscopic and DFT study. RSC Adv 2018; 8:39983-39991. [PMID: 35558198 PMCID: PMC9091284 DOI: 10.1039/c8ra08807a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 11/24/2018] [Indexed: 11/21/2022] Open
Abstract
The development of an efficient and miniaturized analytical approach to determine trace levels of toxic ions in aqueous fluids presents a current research challenge. Hydrazone-based chemosensors are considered potential candidates due to their high sensitivity and selectivity towards heavy metal ions. Computational techniques can be properly implemented to elucidate possible modes of ligand-metal interaction and provide an in-depth understanding of the chemistry involved. The present study reports the use of 3-hydroxy-5-nitrobenzaldehyde-4-hydroxybenzoylhydrazone (3-HNHBH) ligand for highly sensitive, quick and re-usable colorimetric sensing of copper(ii) ions in aqueous media. DFT calculations suggest that the complexation of 3-HNHBH with copper(ii) ions adopts a seesaw coordination geometry and results in the largest HOMO-LUMO gap and most effective coulombic interaction compared to Zn and Ni counterparts. It demonstrated a high selectivity towards copper ions with a detection limit of 0.34 μg L-1. The ligand was readily regenerated using a 0.5 M HCl solution, indicating its feasibility to be used as a re-usable sensor for the convenient detection of copper ions in aqueous media. The influence of metal interference, pH and solvents on the selectivity and regeneration of the ligand was also investigated.
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Affiliation(s)
- Ismail Abdulazeez
- Department of Chemistry, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Chanbasha Basheer
- Department of Chemistry, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Abdulaziz A Al-Saadi
- Department of Chemistry, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
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16
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Lohrman J, Vázquez-Montelongo EA, Pramanik S, Day VW, Hix MA, Bowman-James K, Cisneros GA. Characterizing Hydrogen-Bond Interactions in Pyrazinetetracarboxamide Complexes: Insights from Experimental and Quantum Topological Analyses. Inorg Chem 2018; 57:9775-9778. [DOI: 10.1021/acs.inorgchem.8b00627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jessica Lohrman
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Erik A. Vázquez-Montelongo
- Department of Chemistry, University of North Texas, 1508 W Mulberry Street, Denton, Texas 76201, United States
| | - Subhamay Pramanik
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Victor W. Day
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mark A. Hix
- Department of Chemistry, University of North Texas, 1508 W Mulberry Street, Denton, Texas 76201, United States
| | - Kristin Bowman-James
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - G. Andrés Cisneros
- Department of Chemistry, University of North Texas, 1508 W Mulberry Street, Denton, Texas 76201, United States
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Yousif M, Wannipurage D, Huizenga CD, Washnock-Schmid E, Peraino NJ, Ozarowski A, Stoian SA, Lord RL, Groysman S. Catalytic Nitrene Homocoupling by an Iron(II) Bis(alkoxide) Complex: Bulking Up the Alkoxide Enables a Wider Range of Substrates and Provides Insight into the Reaction Mechanism. Inorg Chem 2018; 57:9425-9438. [PMID: 30015481 DOI: 10.1021/acs.inorgchem.8b01418] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of HOR' (OR' = di-t-butyl-(3,5-diphenylphenyl)methoxide) with an iron(II) amide precursor forms the iron(II) bis(alkoxide) complex Fe(OR')2(THF)2 (2). 2 (5-10 mol %) serves as a catalyst for the conversion of aryl azides into the corresponding azoarenes. The highest yields are observed for aryl azides featuring two ortho substituents; other substitution patterns in the aryl azide precursor lead to moderate or low yields. The reaction of 2 with stoichiometric amounts (2 equiv) of the corresponding aryl azide shows the formation of azoarenes as the only organic products for the bulkier aryl azides (Ar = mesityl, 2,6-diethylphenyl). In contrast, formation of tetrazene complexes Fe(OR')2(ArNNNNAr) (3-6) is observed for the less bulky aryl azides (Ar = phenyl, 4-methylphenyl, 4-methoxyphenyl, 3,5-dimethylphenyl). The electronic structure of selected tetrazene complexes was probed by spectroscopy (field-dependent 57Fe Mössbauer and high-frequency EPR) and density functional theory calculations. These studies revealed that Fe(OR')2(ArNNNNAr) complexes contain high-spin ( S = 5/2) iron(III) centers exchange-coupled to tetrazene radical anions. Tetrazene complexes Fe(OR')2(ArNNNNAr) produce the corresponding azoarenes (ArNNAr) upon heating. Treatment of a tetrazene complex Fe(OR')2(ArNNNNAr) with a different azide (N3Ar') produces all three possible products ArNNAr, ArNNAr', and Ar'NNAr'. These experiments and quantum mechanics/molecular mechanics calculations exploring the reaction mechanism suggest that the tetrazene functionality serves as a masked form of the reactive iron mono(imido) species.
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Affiliation(s)
- Maryam Yousif
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Duleeka Wannipurage
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Caleb D Huizenga
- Department of Chemistry , Grand Valley State University , Allendale , Michigan 49401 , United States
| | - Elizabeth Washnock-Schmid
- Department of Chemistry , Grand Valley State University , Allendale , Michigan 49401 , United States
| | - Nicholas J Peraino
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
| | - Andrew Ozarowski
- National High Magnetic Field Laboratory , Florida State University , Tallahassee , Florida 32310 , United States
| | - Sebastian A Stoian
- Department of Chemistry , University of Idaho , Moscow , Idaho 83844 , United States
| | - Richard L Lord
- Department of Chemistry , Grand Valley State University , Allendale , Michigan 49401 , United States
| | - Stanislav Groysman
- Department of Chemistry , Wayne State University , 5101 Cass Avenue , Detroit , Michigan 48202 , United States
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18
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Zhou C, Lin H, Shi H, Tian Y, Pak C, Shatruk M, Zhou Y, Djurovich P, Du M, Ma B. A Zero‐Dimensional Organic Seesaw‐Shaped Tin Bromide with Highly Efficient Strongly Stokes‐Shifted Deep‐Red Emission. Angew Chem Int Ed Engl 2017; 57:1021-1024. [DOI: 10.1002/anie.201710383] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Chenkun Zhou
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Haoran Lin
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Hongliang Shi
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education) Department of Physics Beihang University Beijing 100191 China
| | - Yu Tian
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
| | - Chongin Pak
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Yan Zhou
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Peter Djurovich
- Department of Chemistry University of Southern California Los Angeles CA 90089 USA
| | - Mao‐Hua Du
- Materials Science & Technology Division and Center for Radiation Detection Materials and Systems Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Biwu Ma
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
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19
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Zhou C, Lin H, Shi H, Tian Y, Pak C, Shatruk M, Zhou Y, Djurovich P, Du M, Ma B. A Zero‐Dimensional Organic Seesaw‐Shaped Tin Bromide with Highly Efficient Strongly Stokes‐Shifted Deep‐Red Emission. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710383] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Chenkun Zhou
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Haoran Lin
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Hongliang Shi
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education) Department of Physics Beihang University Beijing 100191 China
| | - Yu Tian
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
| | - Chongin Pak
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Michael Shatruk
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Yan Zhou
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
| | - Peter Djurovich
- Department of Chemistry University of Southern California Los Angeles CA 90089 USA
| | - Mao‐Hua Du
- Materials Science & Technology Division and Center for Radiation Detection Materials and Systems Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Biwu Ma
- Department of Chemical and Biomedical Engineering FAMU-FSU College of Engineering Tallahassee FL 32310 USA
- Materials Science and Engineering Program Florida State University Tallahassee FL 32306 USA
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL 32306 USA
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20
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Hollingsworth TS, Hollingsworth RL, Rosen T, Groysman S. Zinc bimetallics supported by a xanthene-bridged dinucleating ligand: synthesis, characterization, and lactide polymerization studies. RSC Adv 2017. [DOI: 10.1039/c7ra09207e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Di-zinc complexes of a new dinucleating xanthene-based bis(iminophenolate) ligand have been synthesized, and their coordination chemistry and lactide polymerization activity have been investigated.
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Affiliation(s)
| | | | - Tomer Rosen
- School of Chemistry
- Raymond and Beverly Sackler Faculty of Exact Sciences
- Tel-Aviv University
- Tel-Aviv 69978
- Israel
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21
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Bellow JA, Yousif M, Groysman S. Discrete Complexes of 3d Metals with Monodentate Bulky Alkoxide Ligands and Their Reactivity in Bond Activation and Bond Formation Reactions. COMMENT INORG CHEM 2016. [DOI: 10.1080/02603594.2015.1108913] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- James A. Bellow
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
| | - Maryam Yousif
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
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22
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Yousif M, Cabelof AC, Martin PD, Lord RL, Groysman S. Synthesis of a mononuclear, non-square-planar chromium(ii) bis(alkoxide) complex and its reactivity toward organic carbonyls and CO2. Dalton Trans 2016; 45:9794-804. [DOI: 10.1039/c6dt00279j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rare non-square-planar mononuclear Cr(ii) bis(alkoxide) complex Cr(OR′)2(THF)2 is reported and its reactivity with organic carbonyls and CO2 is investigated.
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Affiliation(s)
- Maryam Yousif
- Department of Chemistry
- Wayne State University
- Detroit
- USA
| | - Alyssa C. Cabelof
- Department of Chemistry
- Wayne State University
- Detroit
- USA
- Department of Chemistry
| | | | - Richard L. Lord
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
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23
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Yousif M, Tjapkes DJ, Lord RL, Groysman S. Catalytic Formation of Asymmetric Carbodiimides at Mononuclear Chromium(II/IV) Bis(alkoxide) Complexes. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00703] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maryam Yousif
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Daniel J. Tjapkes
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Richard L. Lord
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Stanislav Groysman
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
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24
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Bellow JA, Yousif M, Fang D, Kratz EG, Cisneros GA, Groysman S. Synthesis and Reactions of 3d Metal Complexes with the Bulky Alkoxide Ligand [OCtBu2Ph]. Inorg Chem 2015; 54:5624-33. [DOI: 10.1021/acs.inorgchem.5b00795] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- James A. Bellow
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Maryam Yousif
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Dong Fang
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Eric G. Kratz
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - G. Andrés Cisneros
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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25
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Bellow JA, Yousif M, Cabelof AC, Lord RL, Groysman S. Reactivity Modes of an Iron Bis(alkoxide) Complex with Aryl Azides: Catalytic Nitrene Coupling vs Formation of Iron(III) Imido Dimers. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00231] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James A. Bellow
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Maryam Yousif
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Alyssa C. Cabelof
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Richard L. Lord
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Stanislav Groysman
- Department
of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
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26
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Fang D, Cisneros GA. Alternative Pathway for the Reaction Catalyzed by DNA Dealkylase AlkB from Ab Initio QM/MM Calculations. J Chem Theory Comput 2014; 10:5136-5148. [PMID: 25400523 PMCID: PMC4230374 DOI: 10.1021/ct500572t] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Indexed: 12/14/2022]
Abstract
AlkB is the title enzyme of a family of DNA dealkylases that catalyze the direct oxidative dealkylation of nucleobases. The conventional mechanism for the dealkylation of N1-methyl adenine (1-meA) catalyzed by AlkB after the formation of FeIV-oxo is comprised by a reorientation of the oxo moiety, hydrogen abstraction, OH rebound from the Fe atom to the methyl adduct, and the dissociation of the resulting methoxide to obtain the repaired adenine base and formaldehyde. An alternative pathway with hydroxide as a ligand bound to the iron atom is proposed and investigated by QM/MM simulations. The results show OH- has a small impact on the barriers for the hydrogen abstraction and OH rebound steps. The effects of the enzyme and the OH- ligand on the hydrogen abstraction by the FeIV-oxo moiety are discussed in detail. The new OH rebound step is coupled with a proton transfer to the OH- ligand and results in a novel zwitterion intermediate. This zwitterion structure can also be characterized as Fe-O-C complex and facilitates the formation of formaldehyde. In contrast, for the pathway with H2O bound to iron, the hydroxyl product of the OH rebound step first needs to unbind from the metal center before transferring a proton to Glu136 or other residue/substrate. The consistency between our theoretical results and experimental findings is discussed. This study provides new insights into the oxidative repair mechanism of DNA repair by nonheme FeII and α-ketoglutarate (α-KG) dependent dioxygenases and a possible explanation for the substrate preference of AlkB.
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Affiliation(s)
- Dong Fang
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - G. Andrés Cisneros
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
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27
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Liu J, Lin W, Chen Y, Gómez‐Coca S, Aravena D, Ruiz E, Leng J, Tong M. Cu
II
Gd
III
Cryogenic Magnetic Refrigerants and Cu
8
Dy
9
Single‐Molecule Magnet Generated by In Situ Reactions of Picolinaldehyde and Acetylpyridine: Experimental and Theoretical Study. Chemistry 2013; 19:17567-77. [DOI: 10.1002/chem.201303275] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Jun‐Liang Liu
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic, Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
| | - Wei‐Quan Lin
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic, Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
| | - Yan‐Cong Chen
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic, Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
| | - Silvia Gómez‐Coca
- Departament de Química Inorgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain)
| | - Daniel Aravena
- Departament de Química Inorgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain)
| | - Eliseo Ruiz
- Departament de Química Inorgànica and Institut de Recerca de Química Teòrica i Computacional, Universitat de Barcelona, Diagonal 645, 08028 Barcelona (Spain)
| | - Ji‐Dong Leng
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic, Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
| | - Ming‐Liang Tong
- Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, State Key Laboratory of Optoelectronic, Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou 510275 (P.R. China)
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28
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Bellow JA, Martin PD, Lord RL, Groysman S. Reductive Coupling of Azides Mediated by an Iron(II) Bis(alkoxide) Complex. Inorg Chem 2013; 52:12335-7. [DOI: 10.1021/ic402517m] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- James A. Bellow
- Department of Chemistry, Wayne State University, Detroit, Michigan 48201, United States
| | - Philip D. Martin
- Department of Chemistry, Wayne State University, Detroit, Michigan 48201, United States
| | - Richard L. Lord
- Department
of Chemistry, Grand Valley State University, Allendale, Michigan 49401, United States
| | - Stanislav Groysman
- Department of Chemistry, Wayne State University, Detroit, Michigan 48201, United States
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