Synthesis, structure and reactivity of [Mn2(CO)6(μ-MBT)2] (MBT = 2-mercaptobenzothiazolato): A versatile precursor for mono- and polynuclear compounds

Ghosh, Shishir; Mia, Md Shohag; Begum, Esmatara; Kabir, Shariff E.

doi:10.1016/j.ica.2011.11.035

Cited by 23 publications

(11 citation statements)

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“…[16] which can be explained as a consequences of carbonyl substitution by phosphine. The interplanar angle of the butterfly in 5 is 161.1° which is slightly greater than that observed in the parent cluster 2 (159.5°) [16] and the Ru-P bond distance of 2.3827 (15) Å found in 5 is within the range reported in literature [9,[26][27][28]. The Re-N [2.190(5) The solution spectrocopic data of 5 indicates that the solid-state structure persists in solution.…”

Section: Solid-state Structure Ofmentioning

confidence: 76%

“…Heterometallic systems may also combine the catalytic features of different metals to give novel reactivity that is inaccessible by homometallic systems [7]. We have reported systematic synthesis of a number of mixed-metal carbonyl clusters containing heterocyclic thiolate ligand(s) in the past few years [8][9][10][11][12][13][14][15][16]. For example, the Group 7/8 mixed-metal clusters of the general formula MM′3(CO)13(µ3-L) [M = Mn, Re; M′ = Os, Ru;…”

Section: Introductionmentioning

confidence: 99%

“…L-H = nitrogen containing heterocyclic thiol] can be readily obtained from the direct reaction between M′3(CO) x (x = 0, 2) and M2(CO)6(µ-L)2 in moderate to good yield (Scheme 1). The metallic core of these mixed-metal clusters forms a butterfly skeleton where the Group 7 metal (Mn or Re) always occupies a wingtip position [10][11][12][13][14][15][16]. The heterocyclic thiolate ligand is facially located on the convex side of the butterfly core that contains the Group 7 metal, but recent studies showed that it can also be shifted to the other face of the convex side by heating as shown in Scheme 1 [16].…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the reactivity of tetranuclear Group 7/8 mixed-metal clusters toward triphenylphosphine

et al. 2018

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Reactions of the tetranuclear mixed-metal clusters ReM3(CO)13(µ3-thpymS) (1, M = Os; 2, M = Ru; thpymSH = tetrahydropyrimidine-2-thiol) with PPh3 are examined. At room temperature reaction between 1 and PPh3 in the presence Me3NO leads to the formation of mono-and bis-phosphine substituted clusters ReOs3(CO)12(PPh3)(µ3-thpymS) (3) and ReOs3(CO)11(PPh3)2(µ3-thpymS) (4). Cluster 3 also reacts with PPh3 under similar conditions to give 4. In contrast, a similar reaction between 2 and PPh3 furnishes only the monophosphine substituted clusters ReRu3(CO)12(PPh3)(µ3-thpymS) (3). All the new clusters have been characterized by analytical and spectroscopic data together with single crystal X-ray diffraction for 1, 3 and 5.

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Section: Solid-state Structure Ofmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation on the reactivity of tetranuclear Group 7/8 mixed-metal clusters toward triphenylphosphine

et al. 2018

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“…Complexes 1–4 were characterized by a combination of different spectroscopic techniques together with single crystal X‐ray diffraction studies for complexes 1 , 3 and ligand L 1 . Since the X‐ray structures for complexes 1 and 3 have been reported previously, only the salient features of the structures are discussed below ,…”

Section: Resultsmentioning

confidence: 99%

“…The effective atomic number (EAN) rule (defined as the noble gas atomic number achieved by metals via binding with ligands for the formation of a stable metal complex) was followed by each manganese without taking into account the metal‐metal bond and considering that the thiolate ligands serve as 5‐electron donors. The spectroscopic data for complexes 1 and 3 matched well with that reported by Kabir et al ,…”

Section: Resultsmentioning

confidence: 99%

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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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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Synthesis, structure and reactivity of [Mn2(CO)6(μ-MBT)2] (MBT = 2-mercaptobenzothiazolato): A versatile precursor for mono- and polynuclear compounds

Cited by 23 publications

References 59 publications

Investigation on the reactivity of tetranuclear Group 7/8 mixed-metal clusters toward triphenylphosphine

Investigation on the reactivity of tetranuclear Group 7/8 mixed-metal clusters toward triphenylphosphine

Dinuclear Manganese Carbonyl Complexes: Electrocatalytic Reduction of Protons to Dihydrogen

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

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