1
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Wang J, Meng X, Xie W, Zhang X, Fan Y, Wang M. Two biologically inspired tetranuclear nickel(II) catalysts: effect of the geometry of Ni 4 core on electrocatalytic water oxidation. J Biol Inorg Chem 2021; 26:205-216. [PMID: 33544224 DOI: 10.1007/s00775-020-01846-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
Two biologically inspired tetranuclear nickel complexes [Ni4(L-H)4(CH3COO)3]·Cl (1) and [Ni4(L-H)4(CH3COO)4]·2CH3OH (2) (L = di(pyridin-2-yl)methanediol) have been synthesized and investigated by a combination of X-ray crystallography, PXRD, electrochemistry, in-situ UV-Vis spectroelectrochemistry and DLS. Both of the two complexes feature a core composed of four Ni(II) ions with the same peripheral ligation provided by the anionic di(pyridin-2-yl)methanediol and MeCOO- ligands. Whereas, complex 1 possesses one distorted cubane-like [Ni4(µ3-O)4] core, while 2 has one extended butterfly-like [Ni4(µ3-O)2] core. The homogeneous electrocatalytic reactivity of the two water-soluble complexes for water oxidation have been thoroughly studied, which demonstrates that both of them can efficiently electrocatalyze water oxidation with high stability under alkaline conditions, at relatively low over-potentials (η) of 420-790 mV for 1 and 390-780 mV for 2, both in the pH range of 7.67-12.32, with the high TOF of about 139 s-1 (1) and 69 s-1 (2) at pH = 12.32, respectively. By a series of comparative experiments for complexes 1 and 2, we proposed that their crystal geometries play an important role in their electrocatalytic reactivity for water oxidation. We verified that biomimetic cubane geometry could promote OER catalysis with two very similar compounds for the first time. Compared with 2, the biomimetic cubane topology of 1 could promote OER catalysis by facilitating efficient charge delocalization and electron-transfer.
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Affiliation(s)
- Jinmiao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 26610, Shandong, China
| | - Xiangmin Meng
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Wangjing Xie
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 26610, Shandong, China
| | - Xia Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 26610, Shandong, China
| | - Yuhua Fan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 26610, Shandong, China.
| | - Mei Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 26610, Shandong, China.
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2
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Kushvaha SK, Francis M, Kumar J, Nag E, Ravichandran P, Roy S, Chandra Mondal K. Synthesis, oligomerization and catalytic studies of a redox-active Ni 4-cubane: a detailed mechanistic investigation. RSC Adv 2021; 11:22849-22858. [PMID: 35480420 PMCID: PMC9034354 DOI: 10.1039/d1ra03071j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/23/2021] [Indexed: 11/21/2022] Open
Abstract
A robust tetrameric nickel complex [Ni4((Oal−)2L-Me)4(s)4] (3) (s = solvent) with cubane-like Ni4O4 core topology was isolated as a light greenish-orange crystalline solid in excellent yield. The mechanism of formation of 3 involving the two chloride-containing precursors [Ni4((Oal−)2L-Me)4(s)4]·2MeOH (1) and [Ni4((O−)2L-Me)3((Oal−)(OH)L-Me)Cl] (2) was studied by ESI mass spectrometry and confirmed by the solid state isolation and single-crystal X-ray diffraction. The challenging ligand fields containing mono/di-anionic O2N donating atoms and/or chloride ions stabilized the pentacoordinate Ni(ii) ions in 1–2 upon controlling the experimental conditions. Complexes 1–3 have been characterized by NMR, UV-Vis and mass spectrometric analysis. Complex 3 was found to be redox active by cyclic voltammetry (CV) studies. Theoretical calculations were carried out to shed light on the effects of ligand fields on the stability of complexes 1–3. Complex 3 was found to be a potential catalyst for the diastereoselective cyclopropanation of heteroarenes with good to excellent yields. The ESI mass spectrometric analysis revealed the existence of solution dynamics and oligomerization of 3 in solution. Mechanistic investigation of the catalytic cycle revealed that complex 3 and its various oligomers bind to the diazoester employed, followed by dissociative insertion of the respective carbene moieties to the C2–C3 double bond of the involved aromatic heterocycle, leading to the diastereoselective cyclopropanation. A robust tetrameric nickel complex [Ni4((Oal−)2L-Me)4(s)4] (s = solvent) with cubane-like Ni4O4 core topology identified as the efficient catalyst for the diastereoselective cyclopropanation of aromatic heterocycles.![]()
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Affiliation(s)
| | - Maria Francis
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
| | - Jayasree Kumar
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
| | - Ekta Nag
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
| | | | - Sudipta Roy
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER)
- Tirupati 517507
- India
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3
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Jana NC, Jagličić Z, Brandão P, Adak S, Saha A, Panja A. A novel triple aqua-, phenoxo- and carboxylato-bridged dinickel( ii) complex, its magnetic properties, and comparative biomimetic catalytic studies with analogous dinickel( ii) complexes. NEW J CHEM 2021. [DOI: 10.1039/d1nj00708d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A unique triply bridged dinickel(ii) complex and two doubly bridged dinickel(ii) complexes are reported, and their magnetic properties and comparative biomimetic catalytic performances are studied.
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Affiliation(s)
- Narayan Ch. Jana
- Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
| | - Zvonko Jagličić
- Institute of Mathematics
- Physics and Mechanics & Faculty of Civil and Geodetic Engineering
- University of Ljubljana
- 1000 Ljubljana
- Slovenia
| | - Paula Brandão
- Department of Chemistry
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Sarmistha Adak
- Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
- Department of Chemistry
| | - Amrita Saha
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Anangamohan Panja
- Department of Chemistry
- Panskura Banamali College
- Panskura RS
- India
- Department of Chemistry
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4
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Alvarez S. Coordinating Ability of Anions, Solvents, Amino Acids, and Gases towards Alkaline and Alkaline-Earth Elements, Transition Metals, and Lanthanides. Chemistry 2020; 26:4350-4377. [PMID: 31910294 DOI: 10.1002/chem.201905453] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Indexed: 02/06/2023]
Abstract
After briefly reviewing the applications of the coordination ability indices proposed earlier for anions and solvents toward transition metals and lanthanides, a new analysis of crystal structures is applied now to a much larger number of coordinating species: anions (including those that are present in ionic solvents), solvents, amino acids, gases, and a sample of neutral ligands. The coordinating ability towards s-block elements is now also considered. The effect of several factors on the coordinating ability will be discussed: (a) the charge of an anion, (b) the chelating nature of anions and solvents, (c) the degree of protonation of oxo-anions, carboxylates and amino carboxylates, and (d) the substitution of hydrogen atoms by methyl groups in NH3 , ethylenediamine, benzene, ethylene, pyridine and aldehydes. Hit parades of solvents and anions most commonly used in the areas of transition metal, s-block and lanthanide chemistry are deduced from the statistics of their presence in crystal structures.
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Affiliation(s)
- Santiago Alvarez
- Department de Química Inorgànica i Orgànica, Secció de Química Inorgànica and, Institut de Química Teòrica i Computacional, Universitat de Barcelona, Martí i Franquès, 1-11, 08028, Barcelona, Spain
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5
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Sarkar A, Gómez-García CJ, Benmansour S, Nayek HP. Trinuclear Lanthanide Coordination Clusters: Single-Molecule-Magnet Behavior and Catalytic Activity in the Friedel-Crafts Alkylation Reaction. Chempluschem 2020; 84:974-980. [PMID: 31943977 DOI: 10.1002/cplu.201900282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/24/2019] [Indexed: 11/12/2022]
Abstract
A new multidentate ligand (H3 L) was synthesized by the condensation reaction of 4-tert-butyl-2,6-diformylphenol and 2-amino-4-nitrophenol. The reaction of the ligand with hydrated lanthanide nitrate produced two isostructural trinuclear coordination clusters: [DyLn3 L3 (DMF)3 (H2 O)2 ] ⋅ 3.8DMFLn=Dy (1) and Nd (2) (DMF=N, N-dimethylformamide). Single-crystal X-ray diffraction analysis revealed that there are three lanthanide ions arranged in an almost perfect linear fashion in both complexes. Magnetic studies show single-molecule-magnet (SMM) behavior in the Dy derivative with τ0 =1.7×10-6 s and a thermal energy barrier of 7.0 cm-1 . Both complexes were used as catalysts towards the Friedel-Crafts alkylation reaction of indole with different aldehydes with yields varying from 59-98 %. Complex 1 showed better catalytic efficiency than complex 2. This is the first report of using trinuclear lanthanide coordination clusters as catalysts for the Friedel-Crafts alkylation reaction.
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Affiliation(s)
- Arijit Sarkar
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad -, 826004 Jharkhand, India
| | - Carlos J Gómez-García
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain
| | - Samia Benmansour
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980, Paterna, Valencia, Spain
| | - Hari Pada Nayek
- Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad -, 826004 Jharkhand, India
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6
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Ghosh S, De Adhikari A, Nath J, Nayak GC, Nayek HP. Lanthanide (III) Metal‐Organic Frameworks: Syntheses, Structures and Supercapacitor Application. ChemistrySelect 2019. [DOI: 10.1002/slct.201902614] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shankhamala Ghosh
- Department of Applied ChemistryIndian Institute of Technology (Indian school of Mines) Dhanbad- 826004, Jharkhand India
| | - Amrita De Adhikari
- Department of Applied ChemistryIndian Institute of Technology (Indian school of Mines) Dhanbad- 826004, Jharkhand India
| | - Jyotishka Nath
- Department of Applied ChemistryIndian Institute of Technology (Indian school of Mines) Dhanbad- 826004, Jharkhand India
| | - Ganesh C. Nayak
- Department of Applied ChemistryIndian Institute of Technology (Indian school of Mines) Dhanbad- 826004, Jharkhand India
| | - Hari Pada Nayek
- Department of Applied ChemistryIndian Institute of Technology (Indian school of Mines) Dhanbad- 826004, Jharkhand India
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7
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Krylov IB, Budnikov AS, Lopat'eva ER, Nikishin GI, Terent'ev AO. Mild Nitration of Pyrazolin-5-ones by a Combination of Fe(NO 3 ) 3 and NaNO 2 : Discovery of a New Readily Available Class of Fungicides, 4-Nitropyrazolin-5-ones. Chemistry 2019; 25:5922-5933. [PMID: 30834586 DOI: 10.1002/chem.201806172] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/24/2019] [Indexed: 02/02/2023]
Abstract
4-Nitropyrazolin-5-ones have been synthesized by the nitration of pyrazolin-5-ones at room temperature by employing the Fe(NO3 )3 /NaNO2 system. The method demonstrated selectivity towards the 4-position of pyrazolin-5-ones even in the presence of NPh and allyl substituents, which are sensitive to nitration. It was shown that other systems containing FeIII and nitrites, namely Fe(NO3 )3 /tBuONO, Fe(ClO4 )3 /NaNO2 , and Fe(ClO4 )3 /tBuONO, were also effective. Presumably, FeIII oxidizes the nitrite (NaNO2 or tBuONO) to form the NO2 free radical, which serves as the nitrating agent for pyrazolin-5-ones. The synthesized 4-nitropyrazolin-5-ones were discovered to be a new class of fungicides. Their in vitro activities against phytopathogenic fungi were found comparable or even superior to those of commercial fungicides (fluconazole, clotrimazole, triadimefon, and kresoxim-methyl). These results represent a promising starting point for the development of a new type of plant protection agents that can be easily synthesized from widely available reagents.
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Affiliation(s)
- Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of, Sciences, 47 Leninsky prosp., Moscow, 119991, Russian Federation.,All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region, 143050, Russian Federation
| | - Alexander S Budnikov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of, Sciences, 47 Leninsky prosp., Moscow, 119991, Russian Federation.,All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region, 143050, Russian Federation.,Mendeleev University of Chemical Technology of Russia, 9 Miusskaya sq., Moscow, 125047, Russian Federation
| | - Elena R Lopat'eva
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of, Sciences, 47 Leninsky prosp., Moscow, 119991, Russian Federation.,Mendeleev University of Chemical Technology of Russia, 9 Miusskaya sq., Moscow, 125047, Russian Federation
| | - Gennady I Nikishin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of, Sciences, 47 Leninsky prosp., Moscow, 119991, Russian Federation
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of, Sciences, 47 Leninsky prosp., Moscow, 119991, Russian Federation.,All-Russian Research Institute for Phytopathology, B. Vyazyomy, Moscow Region, 143050, Russian Federation.,Mendeleev University of Chemical Technology of Russia, 9 Miusskaya sq., Moscow, 125047, Russian Federation
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8
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Abstract
Four new organotin carboxylates, [(t-C4H9)2Sn(L1)2] (1), [(t-C4H9)2Sn(L2)2] (2), [{(n-C4H9)2Sn(L1)}2O]2 (3) and [{(n-C4H9)2Sn(L2)}2O]2 (4), are reported. All complexes selectively recognize Cu(ii) and Fe(iii) ions in solution. Complex 1 was found to be the best one for sensing those ions among all complexes.
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Affiliation(s)
- Richa Vinayak
- Department of Applied Chemistry
- Indian Institute of Technology (Indian School of Mines)
- Dhanbad-826004
- India
| | - Hari Pada Nayek
- Department of Applied Chemistry
- Indian Institute of Technology (Indian School of Mines)
- Dhanbad-826004
- India
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9
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Saha S, Sarkar A, Das S, Panda TK, Harms K, Nayek HP. The Missing Link in Ni(II)-Ln(III) System: Design and Synthesis of a Dinuclear [Ni 2
] and Three Pentanuclear [Ni 3
Ln 2
] (Ln=La, Ce, Eu) Complexes of a Schiff Base Ligand. ChemistrySelect 2017. [DOI: 10.1002/slct.201701146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Sudeshna Saha
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines) Dhanbad; 826004, Jharkhand India
| | - Arijit Sarkar
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines) Dhanbad; 826004, Jharkhand India
| | - Suman Das
- Department of Chemistry; Indian Institute of Technology Hyderabad, Kandi, Sangareddy; 502285, Telangana India
| | - Tarun K. Panda
- Department of Chemistry; Indian Institute of Technology Hyderabad, Kandi, Sangareddy; 502285, Telangana India
| | - Klaus Harms
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW); Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Hari Pada Nayek
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines) Dhanbad; 826004, Jharkhand India
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