Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Grohsjean, Alexander
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Paul, S.

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in Cooperation with on an Cooperation-Score of 37%

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Publications (16/16 displayed)

  • 2022Development of Enzymatic Variants for the Synthesis of Bioresorbable Polyesterscitations
  • 2020Impact of Surface Functionalization on the Intrinsic Properties of the Resulting Fe-N-C Catalysts for Fuel Cell Applications13citations
  • 2019Comparative Study of Corrosion Performance of HVOF-Sprayed Coatings Produced Using Conventional and Suspension WC-Co Feedstock15citations
  • 2019Influence of silica nanoparticles on corrosion resistance of sol-gel based coatings on mild steel49citations
  • 2019A High Spin Mn(IV)-Oxo Complex Generated via Stepwise Proton and Electron Transfer from Mn(III)-Hydroxo Precursor: Characterization and C-H Bond Cleavage Reactivity16citations
  • 2019A Comparison of the Potential Capability of SFS, SPS and HVSFS for the Production of Photocatalytic Titania Coatings3citations
  • 2019Impact of silica nanoparticles on the morphology and mechanical properties of sol-gel derived coatings39citations
  • 2018Performance evaluation of a hard composite solid lubricant coating when dry machining of high-carbon steel2citations
  • 2017Influence of silica nanoparticles on corrosion resistance of sol-gel based coatings on mild steelcitations
  • 2017Weakly-correlated nature of ferromagnetism in nonsymmorphic CrO%5C(_2%5C) revealed by bulk-sensitive soft-X-ray ARPES25citations
  • 2016Antimicrobial, mechanical and thermal studies of silver particle-loaded polyurethane.46citations
  • 2016Stress analysis in semiconductor devices by Kelvin probe force microscopycitations
  • 2010Materials chemistry for catalysis : Coating of catalytic oxides on metallic foams12citations
  • 2007Cryogenic Si detectors for ultra radiation hardness in SLHC environment5citations
  • 2006A steady-state Bi-substrate technique for measurement of the thermal conductivity of ceramic coatingscitations
  • 2000Determination of the total $c%5Coverline{c}$ production cross section in 340 GeV/c $%5CSigma^{-}$ - nucleus interactions6citations

Places of action

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Silvestre, A.j.d.
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Sousa, Andreia F.
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Almeida, B. C.
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Quinn, D.j.
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Dourado, D. F. A. R.
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Figueiredo, P. R.
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Carvalho, A.t.p.
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Moody, T.s.
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Cremers, C.
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Weidler, N.
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Gomez Villa, E.d.
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Wagner, S.
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Jurzinsky, T.
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Kramm, U.i.
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Kübler, M.
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Toma, F-L
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Skolianos, S.
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Goosen, Mfa
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Chaliampalias, D.
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Vogiatzis, C
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Al-Anazi, Nm
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Berger, L-M
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Algoburi, A
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Faisal, Nh
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Ahmed, R.
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Vourlias, G.
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Dawson, R.
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Naik, S
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Neville, A.
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Barker, R.
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Mora, Lv
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Biswas, A.
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Mitra, A.
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Paine, T.
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Das, A.
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Bandyopadhyay, P.
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Banerjee, S.
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Singh, R.
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Biswas, S.
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Parkin, Ip
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Tabecki, A
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Darr, Ja
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Mills, A
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Lovelock, Hldv
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Robinson, B
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Shi, G
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Taylor, A.
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Taleb, W
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Wang, C.
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Owen, J
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Chattopadhyay, A. K.
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Bhaduri, D.
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Gangopadhyay, S.
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Vivar Mora, L
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Sangiovanni, G.
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Schmitt, T.
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Bisti, F.
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Strocov, V. N.
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Karolak, M.
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Eyert, V.
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Profeta, G.
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Güntherodt, G.
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Rogalev, V. A.
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Gupta, A.
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Wilks, M
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Paul, D.
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Roohpour, N
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Vadgama, P.
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Schuster, J.
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Gessner, T.
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Zienert, A.
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Fuchs, F.
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Sheremet, E.
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Rodriguez, P.
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Vogel, D.
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Zahn, D.
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Hietschold, M.
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Haas, S.
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Reuter, D.
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Supiot, Philippe
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Rodriguez, Ph.
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Löfberg, Axel
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Essakhi, A.
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Mutel, B.
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Meille, V.
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Le Courtois, V.
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Bordes-Richard, E.
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Golosnoy, I.o.
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Tan, J.c.
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Tsipas, S.a.
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Clyne, T.w.
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Co-Authors (by relevance)

  • Silvestre, A.j.d.
  • Sousa, Andreia F.
  • Almeida, B. C.
  • Quinn, D.j.
  • Dourado, D. F. A. R.
  • Figueiredo, P. R.
  • Carvalho, A.t.p.
  • Moody, T.s.
  • Cremers, C.
  • Weidler, N.
  • Gomez Villa, E.d.
  • Wagner, S.
  • Jurzinsky, T.
  • Kramm, U.i.
  • Kübler, M.
  • Toma, F-L
  • Skolianos, S.
  • Goosen, Mfa
  • Chaliampalias, D.
  • Vogiatzis, C
  • Al-Anazi, Nm
  • Berger, L-M
  • Algoburi, A
  • Faisal, Nh
  • Ahmed, R.
  • Vourlias, G.
  • Dawson, R.
  • Naik, S
  • Neville, A.
  • Barker, R.
  • Mora, Lv
  • Biswas, A.
  • Mitra, A.
  • Paine, T.
  • Das, A.
  • Bandyopadhyay, P.
  • Banerjee, S.
  • Singh, R.
  • Biswas, S.
  • Parkin, Ip
  • Tabecki, A
  • Darr, Ja
  • Mills, A
  • Lovelock, Hldv
  • Robinson, B
  • Shi, G
  • Taylor, A.
  • Taleb, W
  • Wang, C.
  • Owen, J
  • Chattopadhyay, A. K.
  • Bhaduri, D.
  • Gangopadhyay, S.
  • Vivar Mora, L
  • Sangiovanni, G.
  • Schmitt, T.
  • Bisti, F.
  • Strocov, V. N.
  • Karolak, M.
  • Eyert, V.
  • Profeta, G.
  • Güntherodt, G.
  • Rogalev, V. A.
  • Gupta, A.
  • Wilks, M
  • Paul, D.
  • Roohpour, N
  • Vadgama, P.
  • Schuster, J.
  • Gessner, T.
  • Zienert, A.
  • Fuchs, F.
  • Sheremet, E.
  • Rodriguez, P.
  • Vogel, D.
  • Zahn, D.
  • Hietschold, M.
  • Haas, S.
  • Reuter, D.
  • Supiot, Philippe
  • Rodriguez, Ph.
  • Löfberg, Axel
  • Essakhi, A.
  • Mutel, B.
  • Meille, V.
  • Le Courtois, V.
  • Bordes-Richard, E.
  • Golosnoy, I.o.
  • Tan, J.c.
  • Tsipas, S.a.
  • Clyne, T.w.
  • Curran, J.a.
OrganizationsLocationPeople

article

A High Spin Mn(IV)-Oxo Complex Generated via Stepwise Proton and Electron Transfer from Mn(III)-Hydroxo Precursor: Characterization and C-H Bond Cleavage Reactivity

  • Biswas, A.
  • Mitra, A.
  • Paine, T.
  • Das, A.
  • Paul, S.
  • Bandyopadhyay, P.
  • Banerjee, S.
  • Singh, R.
  • Biswas, S.
Abstract

The oxomanganese(IV) complex [(dpaq)Mn-IV (O)](+)-Mn+(1-Mn+ , Mn+ = redox-inactive metal ion, H-dpaq = 2-[bis(pyridin-2-ylmethyl)]amino-N-quinolin-8-ylacetamide), generated in the reaction of the precursor hydroxomanganese(III) complex 1 with iodosylbenzene (PhIO) in the presence of redox-inactive metal triflates, has recently been reported. Herein the generation of the same oxomanganese(IV) species from 1 using various combinations of protic acids and oxidants at 293 K is reported. The reaction of 1 with triflic acid and the one-electron-oxidizing agent [Ru-III (bpy)(3)](3+) leads to the formation of the oxomanganese(IV) complex. The putative species has been identified as a mononuclear high-spin (S = 3/2) nonheme oxomanganese(IV) complex (1-0) on the basis of mass spectrometry, Raman spectroscopy, EPR spectroscopy, and DFT studies. The optical absorption spectrum is well reproduced by theoretical calculations on an S = 3/2 ground spin state of the complex. Isotope labeling studies confirm that the oxygen atom in the oxomanganese(IV) complex originates from the Mn-III - OH precursor and not from water. A mechanistic investigation reveals an initial protonation step forming the Mn-III - OH2 complex, which then undergoes one-electron oxidation and subsequent deprotonations to form the oxomanganese(IV) transient, avoiding the requirements of either oxo-transfer agents or redox-inactive metal ions. The Mn-IV-oxo complex cleaves the C-H bonds of xanthene (k(2) = 5.5 M-1 s(-1)), 9,10-DHA (k(2) = 3.9 M-1 s(-1)), 1,4-CHD (k(2) = 0.25 M-1 s(-1)), and fluorene (k(2) = 0.11 M-1 s(-1)) at 293 K. The electrophilic character of the nonheme Mn-IV-oxo complex is demonstrated by a large negative rho value of 2.5 in the oxidation of para-substituted thioanisoles. The complex emerges as the "most reactive" among the existing Mn-IV/V-oxo complexes bearing anionic ligands.

Topics
  • forming
  • reactive
  • mass spectrometry
  • Raman spectroscopy
  • density functional theory or electronic structure
  • lead