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Lotfi Shahpar E, Mahdavi A, Mohamadnia Z. Inhibitory Effects, Fluorescence Studies, and Molecular Docking Analysis of Some Novel Pyridine-Based Compounds on Mushroom Tyrosinase. Biochemistry 2024; 63:2063-2074. [PMID: 39110954 DOI: 10.1021/acs.biochem.4c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
Melanin biosynthesis in different organisms is performed by a tyrosinase action. Excessive enzyme activity and pigment accumulation result in different diseases and disorders including skin cancers, blemishes, and darkening. In fruits and vegetables, it causes unwanted browning of these products and reduces their appearance quality and economic value. Inhibiting enzyme activity and finding novel powerful and safe inhibitors are highly important in agriculture, food, medical, and pharmaceutical industries. In this regard, in the present study, some novel synthetic pyridine-based compounds including 2,6-bis (tosyloxymethyl) pyridine (compound 3), 2,6-bis (butylthiomethyl) pyridine (compound 4), and 2,6-bis (phenylthiomethyl) pyridine (compound 5) were synthesized for the first time, and their inhibitory potencies were assessed on mushroom tyrosinase diphenolase activity. The results showed that while all tested compounds significantly decreased the enzyme activity, compounds 4 and 5 had the highest inhibitory effects (respectively, 80 and 89% inhibition with the IC50 values of 17.0 and 9.0 μmol L-1), and the inhibition mechanism was mixed-type for both compounds. Ligand-binding studies were carried out by fluorescence quenching and molecular docking methods to investigate the enzyme-compound interactions. Fluorescence quenching results revealed that the compounds can form nonfluorescent complexes with the enzyme and result in quenching of its intrinsic emission by the static process. Molecular docking analyses predicted the binding positions and the amino acid residues involved in the interactions. These compounds appear to be suitable candidates for more studies on tyrosinase inhibition.
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Affiliation(s)
- Elahe Lotfi Shahpar
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, Zanjan 45195-1159, Iran
| | - Atiyeh Mahdavi
- Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, Zanjan 45195-1159, Iran
| | - Zahra Mohamadnia
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Gavazang, Zanjan 45195-1159, Iran
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2
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Azarkamanzad Z, Farzaneh F, Abbasi A, Ghiasi M. Synthesis, characterization, Hirshfeld surface analysis and DFT study of a new ionic Co(II) complex with 2,4,6-tris(2-pyridyl)-1,3,5-triazine. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Pd, Ni, Fe and Cu complexes containing a novel SNS-pincer ligand bearing pyridine: Synthesis and catalytic application to form cyclic carbonates. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Pecak J, Käfer M, Fleissner S, Artner W, Kirchner K. Synthesis and characterization of cobalt SCS pincer complexes. MONATSHEFTE FUR CHEMIE 2022; 153:545-549. [PMID: 35966235 PMCID: PMC9360111 DOI: 10.1007/s00706-022-02949-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/20/2022] [Indexed: 11/20/2022]
Abstract
The synthesis and characterization of two Co(II) complexes stabilized by a tridentate SCS pincer ligand are described. Paramagnetic [Co(κ3-SCSCH2-Et)2] and [Co(κ3-SCSCH2-tBu)(κ2-SCSCH2-tBu)] were obtained via transmetalation protocol from CoBr2 and S(C-Br)SCH2-R (R = Et, tBu). Oxidation of the latter with [Cp2Fe]PF6 affords the diamagnetic 18 VE complex [Co(κ3-SCSCH2-tBu)2]PF6. X-ray structures and DFT calculations are presented. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s00706-022-02949-1.
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Affiliation(s)
- Jan Pecak
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Matthias Käfer
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Sarah Fleissner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Werner Artner
- X-Ray Center, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, 1060 Vienna, Austria
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5
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Gul Z, Khan S, Ullah S, Ullah H, Khan MU, Ullah M, Altaf AA. Recent Development in Coordination Compounds as a Sensor for Cyanide Ions in Biological and Environmental Segments. Crit Rev Anal Chem 2022; 54:508-528. [PMID: 35671238 DOI: 10.1080/10408347.2022.2085027] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Rapid detection of toxic ions has taken great attention in the last few decades due to its importance in maintaining a greener environment for human beings. The extreme toxicity of cyanide (CN-) ions is a great environmental concern as its continued industrial use generates interest in facile and sensitive methods for CN- ions detection. Since CN- ions act as a ligand in coordination chemistry which rapidly coordinates with suitable metals and forms complexes, this ability was mainly explored in its detection. It also attacks the central metal in coordination compounds and gives a fluorimetric response. Coordination compounds behave as a sensor for the detection of important ions like CN- ions and have gained great attention due to their facile synthesis, multianalyte detection, clear detection and low detection limit. Recently, considerable efforts have been devoted to the detection and quantification of hazardous multianalyte using a single probe. Cu2+ complexes are the main complexes used for CN- ions detection; however, the complexes of many other metals are also used as sensors. Four basic types of interaction have been discussed in coordination compound sensors for CN- detection. The performances of different sensors are compared with one another and the sensors which have the lowest detection limit are highlighted. This review comprises the progress made by coordination compounds as sensors for the detection of CN- ions in the last six years (2015-2021). To the best of our knowledge, there is no review on coordination compounds as a sensor for CN- ions during this period. [Figure: see text].
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Affiliation(s)
- Zarif Gul
- Department of Chemistry, University of Okara, Okara, Punjab, Pakistan
| | - Sikandar Khan
- Department of Chemistry, University of Malakand, Chakdara, Pakistan
| | - Shaheed Ullah
- Department of Chemistry, University of Okara, Okara, Punjab, Pakistan
| | - Hayat Ullah
- Department of Chemistry, University of Okara, Okara, Punjab, Pakistan
| | - Misbah Ullah Khan
- Center for Nano-Science, University of Okara, Okara, Punjab, Pakistan
| | - Munzer Ullah
- Department of Biochemistry, University of Okara, Okara, Punjab, Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry, University of Okara, Okara, Punjab, Pakistan
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6
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Gamze Sogukomerogullari H, Delidoğan A, Aytar E, Köse A, Sönmez M. Pd(II), Ni(II), Cu(II) and Co(II) complexes bearing “SNS” Pincer Type Ligand: Application as Catalysts for chemical CO2 conversion to obtain cyclic carbonates. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Soobramoney L, Bala MD, Friedrich HB. Flexible pincer backbone revisited: CuSNS complexes as efficient catalysts in paraffin oxidation. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Kodama S, Bunno K, Nomoto A, Ogawa A. trans-Bis[8-(benzyl-sulfan-yl)quinoline-κ 2 N, S]di-chlorido-cobalt(II). IUCRDATA 2021; 6:x210992. [PMID: 36340988 PMCID: PMC9462300 DOI: 10.1107/s2414314621009925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 11/30/2022] Open
Abstract
The title di-chloro-cobalt(II) complex, trans-[CoCl2(1)2] [1 = 8-(benzyl-sulfanyl)-quinoline, C16H13NS], has a central CoII atom (site symmetry ) that exhibits a distorted octa-hedral coordination geometry and is coordinated by two N and two S atoms from the bidentate N,S-ligand (1) situated in an equatorial plane and two Cl atoms in the axial positions. Complexes are linked by weak inter-molecular C-H⋯π inter-actions between the 8-(benzyl-sulfanyl)-quinoline ligands, forming a chain extending along the a-axis direction.
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Affiliation(s)
- Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka, Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Kazuki Bunno
- Department of Applied Chemistry, Graduate School of Engineering, Osaka, Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka, Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka, Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
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Buthelezi S, Ibrahim H, Bala MD, Friedrich HB. Crystal structure of 4- tert-butyl-2- N-(2-pyridylmethyl)aminophenol, C 16H 20N 2O. Z KRIST-NEW CRYST ST 2021. [DOI: 10.1515/ncrs-2021-0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C16H20N2O, monoclinic,
P
2
1
/
c
$P{2}_{1}/c$
(no. 14), a = 9.7933(2) Å, b = 17.5290(3) Å, c = 17.1148(3) Å, β = 101.242(1)°, V = 2881.67(9) Å3, Z = 8, R
gt(F) = 0.0402, wR
ref(F
2) = 0.1106, T = 150(2) K.
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Affiliation(s)
- Sipho Buthelezi
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Halliru Ibrahim
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Muhammad D. Bala
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
| | - Holger B. Friedrich
- School of Chemistry and Physics , University of KwaZulu-Natal , Westville Campus, Private Bag X54001 , Durban 4000, South Africa
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10
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Application of 1,2,3-triazolylidene nickel complexes for the catalytic oxidation of n-octane. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2017.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Chanerika R, Friedrich HB, Shozi ML. Application of new Ru (II) pyridine‐based complexes in the partial oxidation of
n‐
octane. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Revana Chanerika
- School of Chemistry and PhysicsUniversity of KwaZulu‐Natal Durban South Africa
| | - Holger B. Friedrich
- School of Chemistry and PhysicsUniversity of KwaZulu‐Natal Durban South Africa
| | - Mzamo L. Shozi
- School of Chemistry and PhysicsUniversity of KwaZulu‐Natal Durban South Africa
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12
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Chanerika R, Friedrich HB, Shozi ML. Synthesis of Co(II) NNN-pyridine based complexes and their activity in the partial oxidation of n-octane. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Soobramoney L, Bala MD, Friedrich HB, Pillay MN. Flexible SNS pincer complexes of copper: Synthesis, structural characterisation and application in n-octane oxidation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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15
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Hameed Y, Ouanounou S, Jurca T, Gabidullin B, Korobkov I, Richeson D. Dimers, monomers and pentacoordination in a series of earth-abundant transition metal dibromido complexes supported by a neutral SNS ligand framework. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.07.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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Mncube SG, Bala MD. Homogeneous oxidation reactions catalysed by in situ-generated triazolylidene copper(I) complexes. TRANSIT METAL CHEM 2018. [DOI: 10.1007/s11243-018-0278-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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Switching from Ethylene Trimerization to Ethylene Polymerization by Chromium Catalysts Bearing SNS Tridentate Ligands: Process Optimization Using Response Surface Methodology. Catal Letters 2018. [DOI: 10.1007/s10562-018-2571-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Fiebor A, Tia R, Makhubela BCE, Kinfe HH. Water-soluble SNS cationic palladium(II) complexes and their Suzuki-Miyaura cross-coupling reactions in aqueous medium. Beilstein J Org Chem 2018; 14:1859-1870. [PMID: 30112091 PMCID: PMC6071702 DOI: 10.3762/bjoc.14.160] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 06/26/2018] [Indexed: 12/31/2022] Open
Abstract
Unlike their SCS analogues, SNS pincer complexes are poorly studied for their use in coupling reactions. Accordingly, a series of water soluble cationic Pd(II) SNS pincer complexes have been successfully synthesised and investigated in detail for their catalytic activity in Suzuki-Miyaura coupling reactions. By using only 0.5 mol % loading of the complexes, the coupling of inactivated aryl bromides and activated aryl chlorides with various boronic acids in water was achieved in excellent yields and the catalysts were found to be reusable for three cycles without a significant loss of activity. The investigation of the mechanism of the reaction revealed that a Pd(II) to Pd(IV) route is the more likely pathway which was further supported by computational studies.
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Affiliation(s)
- Alphonse Fiebor
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Richard Tia
- Department of Chemistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Banothile C E Makhubela
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
| | - Henok H Kinfe
- Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa
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19
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Soobramoney L, Bala MD, Friedrich HB. Utilisation of new NiSNS pincer complexes in paraffin oxidation. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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20
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Sogukomerogullari HG, Aytar E, Ulusoy M, Demir S, Dege N, Richeson DS, Sönmez M. Synthesis of complexes Fe, Co and Cu supported by “SNS” pincer ligands and their ability to catalytically form cyclic carbonates. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.11.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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21
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Levanova EP, Vilms AI, Bezborodov VA, Babenko IA, Sosnovskaya NG, Istomina NV, Albanov AI, Russavskaya NV, Rozentsveig IB. Synthesis of polydentate chalcogen-containing ligands using the system hydrazine hydrate–base. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217030069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Fliedel C, Rosa V, Vileno B, Parizel N, Choua S, Gourlaouen C, Rosa P, Turek P, Braunstein P. Zwitterionic Cobalt Complexes with Bis(diphenylphosphino)(N-thioether)amine Assembling Ligands: Structural, EPR, Magnetic, and Computational Studies. Inorg Chem 2016; 55:4183-98. [PMID: 27054464 DOI: 10.1021/acs.inorgchem.5b02889] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The coordination of two heterofunctional P,P,S ligands of the N-functionalized DPPA-type bearing an alkylthioether or arylthioether N-substituent, (Ph2P)2N(CH2)3SMe (1) and (Ph2P)2N(p-C6H4)SMe (2), respectively, toward cobalt dichloride was investigated to examine the influence of the linker between the PNP nitrogen and the S atoms. The complexes [CoCl2(1)]2 (3) and [CoCl2(2)]2 (4) have been isolated, and 3 was shown by X-ray diffraction to be a unique dinuclear, zwitterion containing one CoCl moiety bis-chelated by two ligands 1 and one CoCl3 fragment coordinated by the S atom of a thioether function. The FT-IR, UV-vis, and EPR spectroscopic features of 3 were analyzed as the superposition of those of constitutive fragments identified by a retrosynthetic-type analysis. A similar approach provided insight into the nature of 4 for which no X-ray diffraction data could be obtained. A comparison between the spectroscopic features of 4 and of its constitutive fragments, [CoCl(2)2]PF6 (7) and [H2']2[CoCl4] (8) (2' = NH2(p-C6H4)SMe), and between those of 4 and 3 suggested that 4 could either have a zwitterionic structure, similar to that of 3, or contain a tetrahedral dicationic bis-chelated Co center associated with a CoCl4 dianion. Magnetic and EPR studies and theoretical calculations were performed. Doublet spin states were found for the pentacoordinated complexes [CoCl(1)2]PF6 (5) and 7 and anisotropic quadruplet spin states for the tetrahedral complexes [CoCl3(H1')] (6) (1' = NH2(CH2)3SMe) and 8. A very similar behavior was observed for 3 and 4, consisting in the juxtaposition of noninteracting doublet and quadruplet spin states. Antiferromagnetic interactions explain the formation of dimers for 6 and of layers for 8. The EPR signatures of 3 and 4 correspond to the superposition of low-spin nuclei in 5 and 7 and high-spin nuclei in 6 and 8, respectively. From DFT calculations, the solid-state structure of 4 appears best described as zwitterionic, with a low-spin state for the Co1 atom.
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Affiliation(s)
| | | | - Bertrand Vileno
- French EPR Federation of Research (REseau NAtional de Rpe interDisciplinaire, RENARD), Fédération IR-RPE CNRS 3443, 67081 Strasbourg, France
| | | | | | | | - Patrick Rosa
- CNRS, Université de Bordeaux, ICMCB , UPR9048, F-33600 Pessac, France
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23
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Mncube SG, Bala MD. Recoverable aqueous-ionic liquid biphasic catalyst system for the oxidation of n-octane. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Naicker D, Friedrich HB, Omondi B. Cobalt aminodiphosphine complexes as catalysts in the oxidation of n-octane. RSC Adv 2015. [DOI: 10.1039/c5ra07365k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New cobalt “PNP” aminodiphosphine complexes have been prepared and characterised. They show good catalytic activity in the oxidation of n-octane to C8 oxygenates using tert-butyl hydroperoxide as an oxidant.
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Affiliation(s)
- Dunesha Naicker
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Durban
- South Africa
| | - Holger B. Friedrich
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Durban
- South Africa
| | - Bernard Omondi
- School of Chemistry and Physics
- University of KwaZulu-Natal
- Durban
- South Africa
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