Binuclear Rhenium and Manganese Carbonyl Compounds Containing Hetero-Mercaptanes

Hoque, Anwarul; Miah, Arzu; Abser, Nurul; Azad, Abul K.M.S.; Khan, Kamrun N; Karim, Manzurul

doi:10.3329/jbcs.v25i1.11775

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The reactions of Re2(CO)10 with sulfur-containing ligands have been studied for several decades. For example, the reactions of Re2(CO)10 with pyridine-2-thiol [1], thioacetamide [2], thiobenzamide [2], diaryl disulfides [3], pyrimidine-2-thiol [4], 2-mercaptothiazoline [5], 2mercaptobenzimidazole [5], 2-mercapto-1-methylimidazole [5], and 2-mercaptobenzoxazole [6] have been reported. Recent advances in research reveal the isolation of mixed metal [7][8][9] and mixed ligand [10][11][12][13] rhenium complexes of sulfur-containing ligands.…”

Section: Introductionmentioning

confidence: 99%

“…Recent advances in research reveal the isolation of mixed metal [7][8][9] and mixed ligand [10][11][12][13] rhenium complexes of sulfur-containing ligands. These reactions often involve the oxidative cleavage of the rhenium-rhenium bond together with the reductive S─H, N─H or S─S bond scission in the ligands [1][2][3][4][5][6]. 2-Mercaptobenzothiazole and its derivatives are the subjects of interest in coordination and organometallic chemistry [14][15][16][17][18][19][20][21][22][23][24] because many of their metal complexes show antiviral, antibacterial and antifungul activity in the biological system.…”

Section: Introductionmentioning

confidence: 99%

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Alkyl 2-Benzothiazolyl Sulfide Ligated Dirhenium Complexes: Syntheses, Structure and Computational Study of [Re2(CO)8{μ,η1,η1-(R)SCNSC6H4}] (R = CH3 and C2H5)

Islam¹,

Saha²,

Bhoumik³

et al. 2021

Preprint

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The synthesis of dirhenium complexes of 2-(methylthio)benzothiazole and 2-(ethylthio)benzothiazole and their X-ray crystal structures are reported. The complexes, [Re2(CO)8{μ,η1,η1-(CH3)SCNSC6H4}] (1) and [Re2(CO)8{μ,η1,η1-(C2H5)SCNSC6H4}] (2) are isolated as orange crystals from the easy displacement of acetonitrile from the labile complex, [Re2(CO)8(MeCN)2] in moderate yields. The complexes were characterized by elemental analyses and spectroscopic method, and their structures were determined by single crystal X-ray diffraction method. The optimized bond lengths and bond angles of the complexes using DFT method are in good agreement with experimental X-ray crystallographic data. The HOMO and LUMO energy levels of complexes 1 and 2 were studied with the help of DFT method, and their energy gaps were found 3.08 and 3.13 eV, respectively. The Hirshfeld surface analysis was performed to study the intermolecular interaction, crystal packing, and identification of close contacts in both complexes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alkyl 2-Benzothiazolyl Sulfide Ligated Dirhenium Complexes: Syntheses, Structure and Computational Study of [Re2(CO)8{μ,η1,η1-(R)SCNSC6H4}] (R = CH3 and C2H5)

Islam¹,

Saha²,

Bhoumik³

et al. 2021

Preprint

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Hydrogen Evolving Mono‐Nuclear Manganese Complexes with Carefully Positioned Pyridine Base Ligands

Hussein,

Joshi,

Kaur‐Ghumaan

et al. 2024

ChemCatChem

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Enormous efforts have been made by the scientific community for the development of biomimetic/bioinspired complexes as alternative energy systems to overcome the energy crisis arising from the depletion of non‐renewable energy sources. In this regard, new bioinspired mononuclear Mn(I) carbonyl model complexes fac‐[(Mn(CO)3(κ2‐SN2C7H5)(κ1‐PPh2Py))] 1 and fac‐[(Mn(CO)3(κ2‐S2NC7H4)(κ1‐PPh2Py))] 2 with 2‐mercaptobenzimidazole (N,N) and 2‐mercaptobenzothiazole (S,N) ligands and a N‐based phosphine ligand (PPh2Py) have been synthesized, spectroscopically characterized and evaluated as electro‐catalysts for hydrogen generation. Contrary to similar mono‐nuclear (N,N/S,N)‐Mn‐PPh3 complexes reported earlier by our group, based on DFT calculations, it has been shown that the pyridine ring of the PPh2Py ligand placed in an axial position in the coordination sphere of the Mn(I) complexes provides a first site for protonation. Both the molecular complexes were tested as electrocatalysts for hydrogen generation in CH3CN. Complexes 1 and 2 effectively catalyzed electrochemical proton reduction with acetic acid as the proton source and displayed a turnover frequency (TOF / s‐1; O.P., η /V) of 610; 1.02 and 615; 1.12, respectively, for the electro‐catalytic process.

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Dinuclear Manganese Carbonyl Complexes: Electrocatalytic Reduction of Protons to Dihydrogen

2019

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Studies on Mn complexes as electrocatalysts for proton reduction are limited. Mostly Mn complexes have been investigated for CO 2 activation. Hence, hydrogen production by three Mn complexes [(Mn(CO) 3 (μ-SN 2 C 7 H 5 )) 2 ] 1, [(Mn(CO) 3 (μ-S 2 NC 7 H 4 )) 2 ] 3 and [Mn 2 (CO) 7 (μ-S 2 NC 7 H 4 ) 2 ] 4 is reported in the paper. The complexes 1, 3 and 4 effectively catalyzed electro-chemical proton reduction in CH 3 CN with trifluoroacetic acid (TFA) as the proton source. Complexes 1, 3 and 4 displayed turnover frequency (TOF / s À 1 ) (overpotential, η / V) of 358 (0.83), 111 (0.79) and 102 (0.77), respectively for the catalytic process.

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Binuclear Rhenium and Manganese Carbonyl Compounds Containing Hetero-Mercaptanes

Cited by 3 publications

References 13 publications

Alkyl 2-Benzothiazolyl Sulfide Ligated Dirhenium Complexes: Syntheses, Structure and Computational Study of [Re2(CO)8{μ,η1,η1-(R)SCNSC6H4}] (R = CH3 and C2H5)

Alkyl 2-Benzothiazolyl Sulfide Ligated Dirhenium Complexes: Syntheses, Structure and Computational Study of [Re2(CO)8{μ,η1,η1-(R)SCNSC6H4}] (R = CH3 and C2H5)

Hydrogen Evolving Mono‐Nuclear Manganese Complexes with Carefully Positioned Pyridine Base Ligands

Dinuclear Manganese Carbonyl Complexes: Electrocatalytic Reduction of Protons to Dihydrogen

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