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Gaur R, Mishra L. Supramolecular and theoretical investigation of copper(II) complexes containing 2,2′-bipyridine and substituted chalcone ligands: Estimation of non-covalent interactions. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Sarkar RS, Basak T, Gomila RM, Frontera A, Chattopadhyay S. DFT study on CH⋯O, CH···SCN and S···π interaction energies in three dinuclear mixed valence cobalt(III/II) complexes with secondary diamine ligands having inner N2O2 and outer O4 compartments. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Experimental and theoretical investigation of hydrogen bonded supramolecular assemblies through water molecules in a copper(II)-EGTA complex. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133400] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Estimation of the ability of the π-system of pseudohalides (azide and thiocyanate) to participate in CH···π interactions in cyclic hetero-tetranuclear cobalt(III)/sodium and linear trinuclear mixed valence cobalt(III/II/III) complexes. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Ahmed AAM, Mekky AEM, Sanad SMH. Effective synthesis of new benzo-fused macrocyclic and heteromacrocyclic bis(Schiff bases). JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-021-02409-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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6
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Curnow OJ, Crittenden DL. Structures and Spectra of Halide Hydrate Clusters in the Solid State: A Link between the Gas Phase and Solution State. Chempluschem 2022; 87:e202100535. [DOI: 10.1002/cplu.202100535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/07/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Owen John Curnow
- University of Canterbury Department of Chemistry Private Bag 4800 8002 Christchurch NEW ZEALAND
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7
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Bhaumik PK, Gomila RM, Frontera A, Benmansour Souilamas S, Gomez Garcia CJ, Chattopadhyay S. Insight into non-covalent interactions in a [Cu(N3)4]2- bridged hetero-pentanuclear copper(II)/sodium complex with special emphasis on the strong CH···π[Cu(N3)4] interactions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00614f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The swastika-shaped anion, [Cu(N3)4]2- in the pentanuclear hetero-metallic copper(II)-Sodium complex, [(CuLNa)2(µ-N3)2Cu(N3)2] (1), where H2L = N,N'-bis(3-ethoxysalicylidene)-2,2-dimethylpropane-1,3-diamine (N2O4 donor compartmental Schiff base) is nearly planar and provides a π-basic surface adequate...
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Basak T, Frontera A, Chattopadhyay S. Synthesis and characterization of a mononuclear zinc(ii) Schiff base complex: on the importance of C-H⋯π interactions. RSC Adv 2021; 11:30148-30155. [PMID: 35480293 PMCID: PMC9040895 DOI: 10.1039/d1ra03943a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 08/24/2021] [Indexed: 11/24/2022] Open
Abstract
A zinc(ii) complex, [ZnL(H2O)]·H2O {H2L = 2,2′-[(2,2-dimethyl-1,3-propanediyl)bis(nitrilomethylidyne)]bis[6-ethoxyphenol]} has been synthesized and characterized by UV-vis and IR spectroscopy. The structure of the complex has been confirmed by X-ray crystallography and the noncovalent interactions characterized using Hirshfeld surface analysis. In addition to the conventional H-bonds involving the Zn-coordinated and non-coordinated water molecules, interesting C–H⋯π interactions between the H-atoms belonging to aliphatic part of the ligand (2,2-dimethyl-1,3-propanediyl) and the Zn-coordinated aromatic rings are established. These interactions have been studied using DFT calculations (PBE0-D3/def2-TZVP) and characterized using molecular electrostatic potential (MEP) surfaces and the noncovalent interaction (NCI) plot index analyses. The strength of the C–H⋯π interaction in the solid state of [ZnL(H2O)]·H2O has been evaluated using DFT calculations and also analysed using the MEP surface and NCI plot index computational tool.![]()
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Affiliation(s)
- Tanmoy Basak
- Department of Chemistry, Inorganic Section, Jadavpur University Kolkata-700032 India
| | - Antonio Frontera
- Departamento de Química, Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma Baleares Spain
| | - Shouvik Chattopadhyay
- Department of Chemistry, Inorganic Section, Jadavpur University Kolkata-700032 India
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9
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Basak T, Frontera A, Chattopadhyay S. Existence of stronger C H···π(chelate ring) interaction compared to C H···π(arene) interactions in the supramolecular assembly of dinuclear iron(III) Schiff base complexes: A theoretical insight. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Banerjee A, Chattopadhyay S. Dinuclear mixed valence cobalt(II/III) and hetero-tetranuclear cobalt(III)/Na complexes with a compartmental ligand: Synthesis, characterization and use as catalysts for oxidative dimerisation of 2-aminophenol. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120044] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Roy S, Sutradhar D, Drew MGB, Chattopadhyay S. Theoretical insights on the encapsulated hydronium ion mediated supramolecular assembly of nickel(ii) Schiff base complexes: strong hydrogen bonding interaction due to charge transfer from the lone pair of oxygen to the antibonding orbital of the O–H bond. CrystEngComm 2021. [DOI: 10.1039/d1ce00855b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Strong hydrogen bonding interactions are observed in a hydronium ion trapped nickel(ii) Schiff base complex. The energetics regarding these interactions which provide the stability to the supramolecular structure are analysed by DFT calculations.
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Affiliation(s)
- Sourav Roy
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata 700 032, India
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
| | - Dipankar Sutradhar
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
| | - Michael G. B. Drew
- School of Chemistry, The University of Reading, P.O. Box 224, Whiteknights, Reading RG6 6AD, UK
| | - Shouvik Chattopadhyay
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata 700 032, India
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12
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Khan S, Dutta T, Cortijo M, González-Prieto R, Drew MGB, Gomila RM, Frontera A, Chattopadhyay S. Phenoxido mediated antiferromagnetic and azide mediated ferromagnetic coupling in two dinuclear ferromagnetic nickel( ii) complexes with isomeric Schiff bases: a theoretical insight on the pathway of magnetic interaction. CrystEngComm 2021. [DOI: 10.1039/d0ce01861a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two relatively rare mixed phenoxo and azide bridged dinuclear nickel(ii) complexes have been discussed. Both complexes show strong intermolecular hydrogen bonding interactions and exhibit ferromagnetic exchange coupling.
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Affiliation(s)
- Samim Khan
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tamal Dutta
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Miguel Cortijo
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Madrid
- Spain
| | - Rodrigo González-Prieto
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Madrid
- Spain
| | | | - Rosa M. Gomila
- Serveis Cientifico-Tècnics
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- SPAIN
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- SPAIN
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13
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Thakur S, Frontera A, Chattopadhyay S. A tetrameric uudd type water cluster encapsulated in a dinuclear vanadium(V) Schiff base complex and its role in the formation of supramolecular assemblies: A joint experimental and theoretical study. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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14
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Karmakar M, Chattopadhyay S. Synthesis, structure and nitroaromatic sensing ability of a trinuclear zinc complex with a reduced Schiff base ligand: Assessment of the ability of the ligand to sense zinc ion. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Karmakar M, Chattopadhyay S. Visible light driven photodegradation of methylene blue with two reduced Schiff base complexes of zinc(II): Exploration of their phosphatase mimicking ability. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Terán A, Jaafar A, Sánchez-Peláez AE, Torralba MC, Gutiérrez Á. Design and catalytic studies of structural and functional models of the catechol oxidase enzyme. J Biol Inorg Chem 2020; 25:671-683. [PMID: 32367388 DOI: 10.1007/s00775-020-01791-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/24/2020] [Indexed: 12/18/2022]
Abstract
The catechol oxidase activity of three copper/bicompartmental salen derivatives has been studied. One mononuclear, [CuL] (1), one homometallic, [Cu2L(NO3)2] (2), and one heterometallic, [CuMnL(NO3)2] (3) complexes were obtained using the ligand H2L = N,N'-bis(3-methoxysalicylidene)-1,3-propanediamine through different synthetic methods (electrochemical, chemical and solid state reaction). The structural data indicate that the metal ion disposition models the active site of type-3 copper enzymes, such as catechol oxidase. In this way, their ability to act as functional models of the enzyme has been spectrophotometrically determined by monitorization of the oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) to 3,5-di-tert-butyl-o-benzoquinone (3,5-DTBQ). All the complexes show significant catalytic activity with ratio constants (kobs) lying in the range (223-294) × 10-4 min-1. A thorough kinetic study was carried out for complexes 2 and 3, since they show structural similarities with the catechol oxidase enzyme. The greatest catalytic activity was found for the homonuclear dicopper compound (2) with a turnover value (kcat) of (3.89 ± 0.05) × 106 h-1, which it is the higher reported to date, comparable to the enzyme itself (8.25 × 106 h-1).
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Affiliation(s)
- Aarón Terán
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Aida Jaafar
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Ana E Sánchez-Peláez
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - M Carmen Torralba
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Ángel Gutiérrez
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain
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17
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A series of hydrogen bond mediated dinuclear nickel(II) complexes with reduced Schiff base ligands: An insight into the nature of their short intermolecular hydrogen bonds. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114374] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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18
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Mirdya S, Banerjee S, Chattopadhyay S. An insight into the non-covalent Pb⋯S and S⋯S interactions in the solid-state structure of a hemidirected lead(ii) complex. CrystEngComm 2020. [DOI: 10.1039/c9ce01548e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A hemi-directed copper(ii)/lead(ii) complex has been synthesized and characterized. The energy of chalcogen–chalcogen and tetrel bonding interactions in this complex was analyzed by DFT calculations.
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Affiliation(s)
- Saikat Mirdya
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata-700032
- India
| | - Snehasis Banerjee
- Govt. College of Engineering and Leather Technology
- Kolkata-700106
- India
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19
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Karmakar M, Frontera A, Chattopadhyay S. Methylene spacer regulated variation in supramolecular assembly of zinc( ii) dicyanamide complexes with reduced Schiff base ligands: synthesis, structure and DFT study. CrystEngComm 2020. [DOI: 10.1039/d0ce01105c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Three tetranuclear zinc dicyanamide complexes with three potential hexadentate reduced Schiff base ligands have been synthesized and characterized. The DFT study is devoted to the analysis of the competition between C–H⋯π and π⋯π interactions.
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Affiliation(s)
- Mainak Karmakar
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Antonio Frontera
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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20
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Bhaumik PK, Banerjee A, Dutta T, Chatterjee S, Frontera A, Chattopadhyay S. Diminishing accessibility of electrophilic nickel(ii) centres due to incorporation of a methylene spacer in the pendant side arm of a series of heterotrinuclear nickel(ii)/sodium complexes: a DFT study using a homodesmotic equation. CrystEngComm 2020. [DOI: 10.1039/d0ce00251h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The ethoxy groups have a dual effect in hindering the attack of the pseudo-halides on the nickel(ii) centre and also in stabilizing the complex by intra-molecular interactions.
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Affiliation(s)
| | - Abhisek Banerjee
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tamal Dutta
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | | | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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21
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Mohan N, S. S. S, Begum PS, Kurup MP. A modern approach for the sensing of aqueous Al(III) ion by Ni(II) Salen-type Schiff base complexes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nithya Mohan
- Department of Applied Chemistry; Cochin University of Science and Technology; Kochi 682 022 Kerala India
| | - Sreejith S. S.
- Department of Applied Chemistry; Cochin University of Science and Technology; Kochi 682 022 Kerala India
| | - P.M. Sabura Begum
- Department of Applied Chemistry; Cochin University of Science and Technology; Kochi 682 022 Kerala India
| | - M.R. Prathapachandra Kurup
- Department of Applied Chemistry; Cochin University of Science and Technology; Kochi 682 022 Kerala India
- Department of Chemistry, School of Physical Sciences; Central University of Kerala; Tejaswini Hills, Periye Kasaragod 671 316 India
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22
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Basak T, Bhattacharyya A, Harms K, Chattopadhyay S. The ability of a trinuclear zinc(II) Schiff base complex to act as a photocatalyst for the degradation of methylene blue and to mimic phosphatase. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.09.070] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Karmakar M, Basak T, Chattopadhyay S. Phosphatase-mimicking activity of a unique penta-nuclear zinc(ii) complex with a reduced Schiff base ligand: assessment of its ability to sense nitroaromatics. NEW J CHEM 2019. [DOI: 10.1039/c8nj06549g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A penta-nuclear zinc(ii) complex has been synthesized and characterized. The complex has shown good phosphatase-mimicking activity, which has been evaluated spectrophotometrically. The complex also behaves as a sensor for the detection of nitroaromatics via turn-off fluorescence response.
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Affiliation(s)
- Mainak Karmakar
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tanmoy Basak
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
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24
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Mirdya S, Frontera A, Chattopadhyay S. Formation of a tetranuclear supramolecule via non-covalent Pb⋯Cl tetrel bonding interaction in a hemidirected lead(ii) complex with a nickel(ii) containing metaloligand. CrystEngComm 2019. [DOI: 10.1039/c9ce01283d] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A hetero-nuclear nickel(ii)/lead(ii) complex has been synthesized and characterized. The tetrel bonding interactions established between the σ-hole at the hemi-coordinated lead(ii) and the electron rich chlorido ligand has been analyzed by DFT study.
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Affiliation(s)
- Saikat Mirdya
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata-700032
- India
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
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25
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Basak T, Drew MG, Chattopadhyay S. A trinuclear centrosymmetric zinc(II) Schiff base complex: Exploration of its photocatalytic and phosphatase mimicking activity. INORG CHEM COMMUN 2018. [DOI: 10.1016/j.inoche.2018.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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26
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Synthesis and characterization of three hetero-dinuclear complexes with CuO 2 M cores (M = Na, Hg): Exploration of their phenoxazinone synthase mimicking activity. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Khan S, Herrero S, González-Prieto R, Drew MGB, Banerjee S, Chattopadhyay S. A mixed phenoxo and end-on azide bridged dinuclear copper(ii) Schiff base complex: synthesis, structure, magnetic characterization and DFT study. NEW J CHEM 2018. [DOI: 10.1039/c8nj02612b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The magnetic properties of a dinuclear copper(ii) Schiff base complex with dissimilar bridges have been investigated through some theoretical calculations (DFT) using suitable modeled structures.
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Affiliation(s)
- Samim Khan
- Department of Chemistry
- Jadavpur University
- Kolkata-700 032
- India
| | - Santiago Herrero
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria
- 28040 Madrid
| | - Rodrigo González-Prieto
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria
- 28040 Madrid
| | | | - Snehasis Banerjee
- Govt. College of Engineering and Leather Technology
- Salt Lake Sector-III
- Kolkata-700 106
- India
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28
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Ghosh K, Harms K, Bauzá A, Frontera A, Chattopadhyay S. σ-Hole halogen bonding interactions in a mixed valence cobalt(iii/ii) complex and anti-electrostatic hydrogen bonding interaction in a cobalt(iii) complex: a theoretical insight. CrystEngComm 2018. [DOI: 10.1039/c8ce01323c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Supramolecular interactions in the solid state structures of a mixed valence cobalt(ii/iii) complex and a cobalt(iii) complex have been studied using DFT calculations.
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata - 700032
- India
| | - Klaus Harms
- Fachbereich Chemie
- Philipps-Universität Marburg
- D-35032 Marburg
- Germany
| | - Antonio Bauzá
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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29
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Ghosh K, Banerjee A, Bauzá A, Frontera A, Chattopadhyay S. One pot synthesis of two cobalt(iii) Schiff base complexes with chelating pyridyltetrazolate and exploration of their bio-relevant catalytic activities. RSC Adv 2018; 8:28216-28237. [PMID: 35542722 PMCID: PMC9084250 DOI: 10.1039/c8ra03035a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/16/2018] [Indexed: 11/22/2022] Open
Abstract
Two new cobalt(iii) tetrazolato complexes [Co(L1)(PTZ)(N3)] (1) and [Co(L2)(PTZ)(N3)] (2) {where H2L1 = 2((3-(methylamino)propylimino)methyl)-6-methoxyphenol, H2L2 = 2((3-(dimethylamino)propylimino)methyl)-6-ethoxyphenol and HPTZ = 5-(2-pyridyl)tetrazole}, have been synthesized via in situ 1,3-dipolar cycloaddition reaction of 2-cyanopyridine and sodium azide in the presence of cobalt(ii) nitrate hexahydrate and respective Schiff bases in the open atmosphere. The structures of both complexes have been confirmed by single crystal X-ray diffraction studies. Features of noncovalent interactions in the solid state of both complexes have been studied by means of DFT and MEP calculations and characterized using Bader's theory of “atoms in molecules” (AIM). These complexes act as biomimetic catalysts promoting the aerobic oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) to the corresponding o-benzoquinone at room temperature. The reaction follows Michaelis–Menten enzymatic reaction kinetics with turnover numbers of ∼0.030 s−1 in an acetonitrile–methanol (2 : 1) mixture. Both complexes are also reactive towards aerobic oxidation of o-aminophenol in acetonitrile–methanol (2 : 1) with turnover numbers ∼0.095 s−1. Two cobalt(iii) tetrazolato complexes have been synthesized and characterized. Noncovalent interactions have been analysed by DFT and MEP calculations and characterized using Bader's theory of AIM. Both complexes catalyze the aerial oxidation of 3,5-DTBC and OAPH.![]()
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Affiliation(s)
- Kousik Ghosh
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata
- India
| | - Abhisek Banerjee
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata
- India
| | - Antonio Bauzá
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma (Baleares)
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma (Baleares)
- Spain
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30
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Khan S, Sproules S, Natrajan LS, Harms K, Chattopadhyay S. End-on cyanate or end-to-end thiocyanate bridged dinuclear copper(ii) complexes with a tridentate Schiff base blocking ligand: synthesis, structure and magnetic studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj03990e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Two new dinuclear Schiff base copper(ii) complexes have been synthesized and characterized. Copper(ii) centres are ferromagnetically coupled in1and antiferromagnetically coupled in2.
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Affiliation(s)
- Samim Khan
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700 032
- India
| | - Stephen Sproules
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow G12 8QQ
- UK
| | | | - Klaus Harms
- Fachbereich Chemie
- Philipps-Universität Marburg
- D-35032 Marburg
- Germany
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31
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Roy S, Drew MGB, Bauzá A, Frontera A, Chattopadhyay S. Formation of a water-mediated assembly of two neutral copper(ii) Schiff base fragments with a Cu2(NCS)4moiety: exploration of non-covalent C–H⋯π(bimetallo ring) interactions. CrystEngComm 2018. [DOI: 10.1039/c7ce01473b] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The energetic features of dimer formation and water encapsulation in an interesting copper(ii) Schiff base complex, [(CuL)2⊂(H2O)][Cu2(μ1,3-NCS)2(NCS)2], have been studied using DFT calculations.
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Affiliation(s)
- Sourav Roy
- Department of Chemistry
- Inorganic Section
- Jadavpur University
- Kolkata – 700032
- India
| | | | - Antonio Bauzá
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departamento de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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