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  1. Article ; Online: Added Complexity!-Mechanistic Aspects of Heterobimetallic Complexes for Application in Homogeneous Catalysis.

    Fickenscher, Zeno / Hey-Hawkins, Evamarie

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 10

    Abstract: Inspired by multimetallic assemblies and their role in enzyme catalysis, chemists have developed a plethora of heterobimetallic complexes for application in homogeneous catalysis. Starting with small heterobimetallic complexes with σ-donating and π- ... ...

    Abstract Inspired by multimetallic assemblies and their role in enzyme catalysis, chemists have developed a plethora of heterobimetallic complexes for application in homogeneous catalysis. Starting with small heterobimetallic complexes with σ-donating and π-accepting ligands, such as N-heterocyclic carbene and carbonyl ligands, more and more complex systems have been developed over the past two decades. These systems can show a significant increase in catalytic activity compared with their monometallic counterparts. This increase can be attributed to new reaction pathways enabled by the presence of a second metal center in the active catalyst. This review focuses on mechanistic aspects of heterobimetallic complexes in homogeneous catalysis. Depending on the type of interaction of the second metal with the substrates, heterobimetallic complexes can be subdivided into four classes. Each of these classes is illustrated with multiple examples, showcasing the versatility of both, the types of interactions possible, and the reactions accessible.
    Language English
    Publishing date 2023-05-22
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28104233
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  2. Article ; Online: Phosphorus guiding palladium: [4 + 4] metallomacrocyclic Pd

    Clauss, Reike / Hey-Hawkins, Evamarie

    Dalton transactions (Cambridge, England : 2003)

    2022  Volume 51, Issue 25, Page(s) 9632–9641

    Abstract: The reaction of heteroditopic ligand 1 featuring a hard pyridine-hydrazone-pyrimidine (N,N,N) site and a softer pyrimidine-hydrazone-phosphane (N,N,P) pocket with [Pd( ... ...

    Abstract The reaction of heteroditopic ligand 1 featuring a hard pyridine-hydrazone-pyrimidine (N,N,N) site and a softer pyrimidine-hydrazone-phosphane (N,N,P) pocket with [Pd(CH
    Language English
    Publishing date 2022-06-27
    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/d2dt01176j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Dendritic Structures Functionalized with Boron Clusters, in Particular Carboranes, and Their Biological Properties.

    Caminade, Anne-Marie / Milewski, Max / Hey-Hawkins, Evamarie

    Pharmaceutics

    2023  Volume 15, Issue 8

    Abstract: The presence of a large number of boron atoms in boron clusters make them attractive tools for the treatment of cancer using boron neutron capture therapy (BNCT). Since the quantity of boron atoms present in the target cell directly affects the ... ...

    Abstract The presence of a large number of boron atoms in boron clusters make them attractive tools for the treatment of cancer using boron neutron capture therapy (BNCT). Since the quantity of boron atoms present in the target cell directly affects the effectiveness of BNCT, the idea of gathering a high number of boron atoms in a single entity has emerged many years ago. In this perspective, using hyper-branched macromolecules such as dendrimers appears as an interesting solution. In this review, we will first present the synthesis of diverse dendritic entities (dendrimers, dendrons, and Janus dendrimers) that incorporate boron clusters, in particular carboranes, anywhere in their structure. Four parts of this review present the synthesis of dendrimers having boron clusters on the surface, or inside their structure, of dendrons and of Janus dendrimers, bearing boron clusters. Practically all these boronated dendritic structures were synthesized with the objective to study their biological properties, but in fact only a few of them have been tested against cancerous cells, and even a smaller number was tested in BNCT experiments. The biological experiments are discussed in the fifth part of this review. A good efficiency is generally observed with the boronated dendrimers, even in animal models, with an increase in their mean survival time (MST).
    Language English
    Publishing date 2023-08-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527217-2
    ISSN 1999-4923
    ISSN 1999-4923
    DOI 10.3390/pharmaceutics15082117
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  4. Article ; Online: Encapsulation Studies on

    Sarkar, Meghamala / Hey-Hawkins, Evamarie / Boomishankar, Ramamoorthy

    Inorganic chemistry

    2023  Volume 62, Issue 10, Page(s) 4035–4042

    Abstract: The encapsulation of ... ...

    Abstract The encapsulation of icosahedral
    Language English
    Publishing date 2023-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.2c04207
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  5. Article ; Online: Facile Synthesis of Enantiomerically Pure P-Chiral 1-Alkoxy-2,3-dihydrophospholes via Nucleophilic P-N Bond Cleavage of a 1-Phospha-2-azanorbornene.

    Ramazanova, Kyzgaldak / Lönnecke, Peter / Hey-Hawkins, Evamarie

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2023  Volume 29, Issue 45, Page(s) e202300790

    Abstract: The reactive P-N bond in a racemic mixture of endo-1-phospha-2-azanorbornene (PAN) ( ... ...

    Abstract The reactive P-N bond in a racemic mixture of endo-1-phospha-2-azanorbornene (PAN) (R
    Language English
    Publishing date 2023-06-06
    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.202300790
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  6. Article ; Online: Facile Synthesis of Enantiomerically Pure P-Chiral 1-Alkoxy-2,3-dihydrophospholes via Nucleophilic P-N Bond Cleavage of a 1-Phospha-2-azanorbornene.

    Ramazanova, Kyzgaldak / Lönnecke, Peter / Hey-Hawkins, Evamarie

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2023  , Page(s) e202301937

    Abstract: Invited for the cover of this issue is the group of Prof. Evamarie Hey-Hawkins at Leipzig University. The image depicts a deer with diastereomeric antlers. Read the full text of the article at 10.1002/chem.202300790. ...

    Abstract Invited for the cover of this issue is the group of Prof. Evamarie Hey-Hawkins at Leipzig University. The image depicts a deer with diastereomeric antlers. Read the full text of the article at 10.1002/chem.202300790.
    Language English
    Publishing date 2023-07-07
    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.202301937
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  7. Article ; Online: Amplified photomodulation of a bis(dithienylethene)-substituted phosphine.

    Sherstiuk, Anastasiia / Villabona, Marc / Lledós, Agustí / Hernando, Jordi / Sebastián, Rosa María / Hey-Hawkins, Evamarie

    Dalton transactions (Cambridge, England : 2003)

    2024  Volume 53, Issue 14, Page(s) 6190–6199

    Abstract: Phosphine ligands play a crucial role in homogeneous catalysis, allowing fine-tuning of the catalytic activity of various metals by modifying their structure. An ultimate challenge in this field is to reach controlled modulation of ... ...

    Abstract Phosphine ligands play a crucial role in homogeneous catalysis, allowing fine-tuning of the catalytic activity of various metals by modifying their structure. An ultimate challenge in this field is to reach controlled modulation of catalysis
    Language English
    Publishing date 2024-04-02
    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/d3dt04246d
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  8. Article ; Online: Dithienylethene-Based Photoswitchable Phosphines for the Palladium-Catalyzed Stille Coupling Reaction.

    Sherstiuk, Anastasiia / Lledós, Agustí / Lönnecke, Peter / Hernando, Jordi / Sebastián, Rosa María / Hey-Hawkins, Evamarie

    Inorganic chemistry

    2024  Volume 63, Issue 17, Page(s) 7652–7664

    Abstract: Homogeneous transition metal catalysis is a constantly developing field in chemical sciences. A growing interest in this area is photoswitchable catalysis, which ... ...

    Abstract Homogeneous transition metal catalysis is a constantly developing field in chemical sciences. A growing interest in this area is photoswitchable catalysis, which pursues
    Language English
    Publishing date 2024-04-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c04423
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  9. Article ; Online: Fusing Bismuth and Mercaptocarboranes: Design and Biological Evaluation of Low-Toxicity Antimicrobial Thiolato Complexes.

    Selg, Christoph / Grell, Toni / Brakel, Alexandra / Andrews, Philip C / Hoffmann, Ralf / Hey-Hawkins, Evamarie

    ChemPlusChem

    2024  , Page(s) e202300759

    Abstract: This study proposes an innovative strategy to enhance the pharmacophore model of antimicrobial bismuth thiolato complex drugs by substituting hydrocarbon ligand structures with boron clusters, particularly icosahedral closo-dicarbadodecaborane ( ... ...

    Abstract This study proposes an innovative strategy to enhance the pharmacophore model of antimicrobial bismuth thiolato complex drugs by substituting hydrocarbon ligand structures with boron clusters, particularly icosahedral closo-dicarbadodecaborane (C
    Language English
    Publishing date 2024-01-23
    Publishing country Germany
    Document type Journal Article
    ISSN 2192-6506
    ISSN (online) 2192-6506
    DOI 10.1002/cplu.202300759
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  10. Article ; Online: Illuminating the Path to Enhanced Bioimaging by Phosphole-based Fluorophores.

    Schenk, Mareike / König, Nils / Hey-Hawkins, Evamarie / Beck-Sickinger, Annette G

    Chembiochem : a European journal of chemical biology

    2024  Volume 25, Issue 5, Page(s) e202300857

    Abstract: As the research of biological systems becomes increasingly complex, there is a growing demand for fluorophores with a diverse range of wavelengths. In this study, we introduce phosphole-based fluorophores that surpass existing options like dansyl ... ...

    Abstract As the research of biological systems becomes increasingly complex, there is a growing demand for fluorophores with a diverse range of wavelengths. In this study, we introduce phosphole-based fluorophores that surpass existing options like dansyl chloride. The reactive S-Cl bond in chlorosulfonylimino-5-phenylphosphole derivatives allows rapid and direct coupling to peptides making the fluorophores easily introducible to peptides. This coupling process occurs under mild conditions, demonstrated for [F
    MeSH term(s) Fluorescent Dyes ; Hypochlorous Acid ; Ionophores ; Microscopy, Fluorescence ; Peptides
    Chemical Substances Fluorescent Dyes ; Hypochlorous Acid (712K4CDC10) ; Ionophores ; Peptides
    Language English
    Publishing date 2024-02-08
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2020469-3
    ISSN 1439-7633 ; 1439-4227
    ISSN (online) 1439-7633
    ISSN 1439-4227
    DOI 10.1002/cbic.202300857
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