LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 9 of total 9

Search options

  1. Article ; Online: Synthesis and Characterization of Phosphorus-Containing Isocyclam Macrocycles and Their Nickel Complexes.

    Gerschel, Philipp / Guseva, Tatiana / Siegmund, Daniel / Apfel, Ulf-Peter

    The Journal of organic chemistry

    2022  

    Abstract: The tetradentate azamacrocycle cyclam (=1,4,8,11-tetraazacyclotetradecane) was studied profoundly for the coordination of transition metal ions, and the resulting complexes were investigated extensively for their catalytic performance in, e.g., ... ...

    Abstract The tetradentate azamacrocycle cyclam (=1,4,8,11-tetraazacyclotetradecane) was studied profoundly for the coordination of transition metal ions, and the resulting complexes were investigated extensively for their catalytic performance in, e.g., O
    Language English
    Publishing date 2022-11-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.2c02049
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4473: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Dithiolopyrrolones are Prochelators that are Activated by Glutathione.

    Albini, Francesca / Bormann, Stefan / Gerschel, Philipp / Ludwig, Veza A / Neumann, Wilma

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2022  Volume 29, Issue 4, Page(s) e202202567

    Abstract: Dithiolopyrrolones (DTPs), such as holomycin, are natural products that hold promise as scaffolds for antibiotics as they exhibit inhibitory activity against antibiotic-resistant pathogens. They consist of a unique bicyclic core containing a disulfide ... ...

    Abstract Dithiolopyrrolones (DTPs), such as holomycin, are natural products that hold promise as scaffolds for antibiotics as they exhibit inhibitory activity against antibiotic-resistant pathogens. They consist of a unique bicyclic core containing a disulfide that is crucial for their biological activity. Herein, we establish the DTPs as prochelators. We show that the disulfides are reduced at cellular gluathione levels. This activates the drugs and initiates interactions with targets, particularly metal coordination. In addition, we report an expedient synthesis for the DTPs thiolutin and aureothricin, providing facile access to important natural DTPs and derivatives thereof.
    MeSH term(s) Anti-Bacterial Agents/pharmacology ; Metals ; Glutathione ; Pyrroles/pharmacology ; Sulfhydryl Compounds/pharmacology ; Disulfides
    Chemical Substances Anti-Bacterial Agents ; Metals ; Glutathione (GAN16C9B8O) ; Pyrroles ; Sulfhydryl Compounds ; Disulfides
    Language English
    Publishing date 2022-11-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202202567
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article ; Online: FeNi

    Hegazy, Mohamed Barakat Zakaria / Zander, Judith / Weiss, Morten / Simon, Christopher / Gerschel, Philipp / Sanden, Sebastian A / Smialkowski, Mathias / Tetzlaff, David / Kull, Tobias / Marschall, Roland / Apfel, Ulf-Peter

    Small (Weinheim an der Bergstrasse, Germany)

    2024  , Page(s) e2311627

    Abstract: For a carbon-neutral society, the production of hydrogen as a clean fuel through water electrolysis is currently of great interest. Since water electrolysis is a laborious energetic reaction, it requires high energy to maintain efficient and sustainable ... ...

    Abstract For a carbon-neutral society, the production of hydrogen as a clean fuel through water electrolysis is currently of great interest. Since water electrolysis is a laborious energetic reaction, it requires high energy to maintain efficient and sustainable production of hydrogen. Catalytic electrodes can reduce the required energy and minimize production costs. In this context, herein, a bifunctional electrocatalyst made from iron nickel sulfide (FeNi
    Language English
    Publishing date 2024-03-11
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2168935-0
    ISSN 1613-6829 ; 1613-6810
    ISSN (online) 1613-6829
    ISSN 1613-6810
    DOI 10.1002/smll.202311627
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: A bioinspired oxoiron(IV) motif supported on a N

    Deutscher, Jennifer / Gerschel, Philipp / Warm, Katrin / Kuhlmann, Uwe / Mebs, Stefan / Haumann, Michael / Dau, Holger / Hildebrandt, Peter / Apfel, Ulf-Peter / Ray, Kallol

    Chemical communications (Cambridge, England)

    2021  Volume 57, Issue 23, Page(s) 2947–2950

    Abstract: A mononuclear oxoiron(iv) complex 1-trans bearing two equatorial sulfur ligations is synthesized and characterized as an active-site model of the elusive sulfur-ligated FeIV[double bond, length as m-dash]O intermediates in non-heme iron oxygenases. The ... ...

    Abstract A mononuclear oxoiron(iv) complex 1-trans bearing two equatorial sulfur ligations is synthesized and characterized as an active-site model of the elusive sulfur-ligated FeIV[double bond, length as m-dash]O intermediates in non-heme iron oxygenases. The introduction of sulfur ligands weakens the Fe[double bond, length as m-dash]O bond and enhances the oxidative reactivity of the FeIV[double bond, length as m-dash]O unit with a diminished deuterium kinetic isotope effect, thereby providing a compelling rationale for nature's use of the cis-thiolate ligated oxoiron(iv) motif in key metabolic transformations.
    Language English
    Publishing date 2021-02-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d1cc00250c
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article ; Online: Electrocatalytic Reduction of CO

    De, Ratnadip / Gonglach, Sabrina / Paul, Shounik / Haas, Michael / Sreejith, S S / Gerschel, Philipp / Apfel, Ulf-Peter / Vuong, Thanh Huyen / Rabeah, Jabor / Roy, Soumyajit / Schöfberger, Wolfgang

    Angewandte Chemie (International ed. in English)

    2020  Volume 59, Issue 26, Page(s) 10527–10534

    Abstract: The controlled electrochemical reduction of carbon dioxide to value added chemicals is an important strategy in terms of renewable energy technologies. Therefore, the development of efficient and stable catalysts in an aqueous environment is of great ... ...

    Abstract The controlled electrochemical reduction of carbon dioxide to value added chemicals is an important strategy in terms of renewable energy technologies. Therefore, the development of efficient and stable catalysts in an aqueous environment is of great importance. In this context, we focused on synthesizing and studying a molecular Mn
    Language English
    Publishing date 2020-05-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202000601
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article ; Online: Spontaneous Si-C bond cleavage in (Triphos

    Petuker, Anette / Mebs, Stefan / Schuth, Nils / Gerschel, Philipp / Reback, Matthew L / Mallick, Bert / van Gastel, Maurice / Haumann, Michael / Apfel, Ulf-Peter

    Dalton transactions (Cambridge, England : 2003)

    2017  Volume 46, Issue 3, Page(s) 907–917

    Abstract: Herein, we report on the versatile reactions of ... ...

    Abstract Herein, we report on the versatile reactions of CH
    Language English
    Publishing date 2017-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/c6dt04048a
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article ; Online: Molecular cobalt corrole complex for the heterogeneous electrocatalytic reduction of carbon dioxide.

    Gonglach, Sabrina / Paul, Shounik / Haas, Michael / Pillwein, Felix / Sreejith, Sreekumar S / Barman, Soumitra / De, Ratnadip / Müllegger, Stefan / Gerschel, Philipp / Apfel, Ulf-Peter / Coskun, Halime / Aljabour, Abdalaziz / Stadler, Philipp / Schöfberger, Wolfgang / Roy, Soumyajit

    Nature communications

    2019  Volume 10, Issue 1, Page(s) 3864

    Abstract: Electrochemical conversion of ... ...

    Abstract Electrochemical conversion of CO
    Language English
    Publishing date 2019-08-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-019-11868-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article ; Online: Molecular cobalt corrole complex for the heterogeneous electrocatalytic reduction of carbon dioxide

    Gonglach, Sabine / Paul, Shounik / Haas, Michael / Pillwein, Felix / Sreekumar, S. Sreejith / Barman, Soumitra / De, Ratnadip / Müllegger, Stefan / Gerschel, Philipp / Apfel, Ulf-Peter / Coskun, Halime / Aljabour, Abdalaziz / Stadler, Philipp / Schöfberger, Wolfgang / Roy, Soumyajit

    Fraunhofer UMSICHT Oh

    2019  

    Abstract: Electrochemical conversion of CO2 to alcohols is one of the most challenging methods of conversion and storage of electrical energy in the form of high-energy fuels. The challenge lies in the catalyst design to enable its real-life implementation. Herein, ...

    Abstract Electrochemical conversion of CO2 to alcohols is one of the most challenging methods of conversion and storage of electrical energy in the form of high-energy fuels. The challenge lies in the catalyst design to enable its real-life implementation. Herein, we demonstrate the synthesis and characterization of a cobalt(III) triphenylphosphine corrole complex, which contains three polyethylene glycol residues attached at the meso-phenyl groups. Electrondonation and therefore reduction of the cobalt from cobalt(III) to cobalt(I) is accompanied by removal of the axial ligand, thus resulting in a square-planar cobalt(I) complex. The cobalt(I) as an electron-rich supernucleophilic d8-configurated metal centre, where two electrons occupy and fill up the antibonding dz2 orbital. This orbital possesses high affinity towards electrophiles, allowing for such electronically configurated metals reactions with carbon dioxide. Herein, we report the potential dependent heterogeneous electroreduction of CO2 to ethanol or methanol of an immobilized cobalt A3-corrole catalyst system. In moderately acidic aqueous medium (pH = 6.0), the cobalt corrole modified carbon paper electrode exhibits a Faradaic Efficiency (FE%) of 48 % towards ethanol production.
    Keywords carbon capture and storage ; electrocatalysis ; heterogeneous catalysis ; materials for energy and catalysis ; organometallic chemistry
    Subject code 540
    Language English
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article ; Online: Molecular cobalt corrole complex for the heterogeneous electrocatalytic reduction of carbon dioxide

    Gonglach, Sabine / Paul, Shounik / Haas, Michael / Pillwein, Felix / Sreekumar, S. Sreejith / Barman, Soumitra / De, Ratnadip / Müllegger, Stefan / Gerschel, Philipp / Apfel, Ulf-Peter / Coskun, Halime / Aljabour, Abdalaziz / Stadler, Philipp / Schöfberger, Wolfgang / Roy, Soumyajit

    2019  

    Abstract: Art. 3864, 10 S. ... Electrochemical conversion of CO2 to alcohols is one of the most challenging methods of conversion and storage of electrical energy in the form of high-energy fuels. The challenge lies in the catalyst design to enable its real-life ... ...

    Abstract Art. 3864, 10 S.

    Electrochemical conversion of CO2 to alcohols is one of the most challenging methods of conversion and storage of electrical energy in the form of high-energy fuels. The challenge lies in the catalyst design to enable its real-life implementation. Herein, we demonstrate the synthesis and characterization of a cobalt(III) triphenylphosphine corrole complex, which contains three polyethylene glycol residues attached at the meso-phenyl groups. Electrondonation and therefore reduction of the cobalt from cobalt(III) to cobalt(I) is accompanied by removal of the axial ligand, thus resulting in a square-planar cobalt(I) complex. The cobalt(I) as an electron-rich supernucleophilic d8-configurated metal centre, where two electrons occupy and fill up the antibonding dz2 orbital. This orbital possesses high affinity towards electrophiles, allowing for such electronically configurated metals reactions with carbon dioxide. Herein, we report the potential dependent heterogeneous electroreduction of CO2 to ethanol or methanol of an immobilized cobalt A3-corrole catalyst system. In moderately acidic aqueous medium (pH = 6.0), the cobalt corrole modified carbon paper electrode exhibits a Faradaic Efficiency (FE%) of 48 % towards ethanol production.

    10
    Keywords carbon capture and storage ; electrocatalysis ; heterogeneous catalysis ; materials for energy and catalysis ; organometallic chemistry
    Subject code 540
    Language English
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top