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  1. Article ; Online: Welcoming Neighbour or Inhospitable Host? Selective Second Metal Binding in 5- and 6-Phospha-Substituted Bpy Ligands.

    Platts, James A / Kariuki, Benson M / Newman, Paul D

    Molecules (Basel, Switzerland)

    2024  Volume 29, Issue 5

    Abstract: The controlled formation of mixed-metal bimetallics was realised through use of ... ...

    Abstract The controlled formation of mixed-metal bimetallics was realised through use of a
    Language English
    Publishing date 2024-03-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules29051150
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

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  2. Article: Synthesis and crystal structure of

    Mohamed-Ezzat, Reham A / Kariuki, Benson M / Elgemeie, Galal H

    Acta crystallographica. Section E, Crystallographic communications

    2024  Volume 80, Issue Pt 4, Page(s) 392–395

    Abstract: ... ...

    Abstract N
    Language English
    Publishing date 2024-03-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041947-8
    ISSN 2056-9890 ; 1600-5368
    ISSN 2056-9890 ; 1600-5368
    DOI 10.1107/S2056989024002573
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Crystal structures of sulfonamide protected bicyclic guanidines: (

    Alaboosh, Jamal M H / Hill, Steven P / Kariuki, Benson M / Redman, James E

    Acta crystallographica. Section E, Crystallographic communications

    2024  Volume 80, Issue Pt 3, Page(s) 305–309

    Abstract: Two compounds, ( ...

    Abstract Two compounds, (
    Language English
    Publishing date 2024-02-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041947-8
    ISSN 2056-9890 ; 1600-5368
    ISSN 2056-9890 ; 1600-5368
    DOI 10.1107/S2056989024001129
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Deville rebooted - practical N

    Edwards, Lee E / Kariuki, Benson M / Didsbury, Matthew / Jones, Christopher D / Wirth, Thomas

    Chemical communications (Cambridge, England)

    2024  

    Abstract: Dinitrogen pentoxide ( ... ...

    Abstract Dinitrogen pentoxide (N
    Language English
    Publishing date 2024-05-15
    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/d4cc01403k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Metal Oxide Nanoparticles Containing Clotrimazole to Suppress Photodegradation of Poly(Vinyl Chloride) Thin Films.

    Emad, Noor / El-Hiti, Gamal A / Yousif, Emad / Kariuki, Benson M

    Polymers

    2023  Volume 15, Issue 7

    Abstract: Pol(vinyl chloride) or PVC has functional properties that enable its use in many industrial applications. It suffers from aging, however, in harsh conditions (e.g., elevated temperature or high humidity levels) if oxygen is present. One way to enhance ... ...

    Abstract Pol(vinyl chloride) or PVC has functional properties that enable its use in many industrial applications. It suffers from aging, however, in harsh conditions (e.g., elevated temperature or high humidity levels) if oxygen is present. One way to enhance the photostability of PVC is to blend it with additives. Thus, thin films were made by mixing PVC with clotrimazole, and five metal oxide (titanium, copper, cobalt, chromium, and nickel oxides) additives. The metal oxides and clotrimazole were added at concentrations of 0.1 and 0.5% by weight, respectively. The effect of the metal oxide nanoparticles accompanied by clotrimazole on the photodegradation of PVC was then assessed. The results indicated that the additives have a stabilizing effect and protect PVC against photodegradation significantly. The formation of polymeric fragments of small molecular weight containing carbon-carbon double bonds and carbonyl groups was lower in the blends containing metal oxide nanoparticles and clotrimazole than in unblended PVC. Similarly, the decrease in weight was much less for the films blended with additives. Additionally, surface analysis of the irradiated polymeric films showed significantly lower damage in the materials containing additives. The most effective additive in the stabilization of PVC was nickel oxide nanoparticles. The metal oxides are highly alkaline and act as scavengers for the hydrogen chloride produced during the photodegradation of PVC. They additionally act as peroxide decomposers. In contrast, clotrimazole can absorb harmful radiation and act as an ultraviolet absorber due to its heteroatom and aromatic content. Thus, the use of a combination of metal oxide nanoparticles and clotrimazole led to significant improvement in the resistance of PVC toward photodegradation.
    Language English
    Publishing date 2023-03-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15071632
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Synthesis and crystal structure of

    Mohamed-Ezzat, Reham A / Kariuki, Benson M / Azzam, Rasha A

    Acta crystallographica. Section E, Crystallographic communications

    2023  Volume 79, Issue Pt 4, Page(s) 331–334

    Abstract: ... ...

    Abstract N
    Language English
    Publishing date 2023-03-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041947-8
    ISSN 2056-9890 ; 1600-5368
    ISSN 2056-9890 ; 1600-5368
    DOI 10.1107/S2056989023001871
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Synthesis, crystal structure and

    Mohamed-Ezzat, Reham A / Kariuki, Benson M / Srour, Aladdin M

    Acta crystallographica. Section E, Crystallographic communications

    2023  Volume 79, Issue Pt 11, Page(s) 999–1002

    Abstract: 2-[(4-Acetyl-phen-yl)carbamo-yl]phenyl acetate, ... ...

    Abstract 2-[(4-Acetyl-phen-yl)carbamo-yl]phenyl acetate, C
    Language English
    Publishing date 2023-10-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041947-8
    ISSN 2056-9890 ; 1600-5368
    ISSN 2056-9890 ; 1600-5368
    DOI 10.1107/S2056989023008526
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A hybrid bipy-NHC ligand for the construction of group 11 mixed-metal bimetallic complexes.

    Kariuki, Benson M / Platts, James A / Newman, Paul D

    RSC advances

    2021  Volume 11, Issue 54, Page(s) 34170–34173

    Abstract: An asymmetric bipy/NHC ligand L has been used to construct Au/Au, Au/Ag and Au/Cu bimetallic complexes through prior coordination of the NHC to Au(i) and subsequent introduction of the second group 11 metal ion at the bipy donor of the hybrid ligand. The ...

    Abstract An asymmetric bipy/NHC ligand L has been used to construct Au/Au, Au/Ag and Au/Cu bimetallic complexes through prior coordination of the NHC to Au(i) and subsequent introduction of the second group 11 metal ion at the bipy donor of the hybrid ligand. The complex [Au(κ
    Language English
    Publishing date 2021-10-21
    Publishing country England
    Document type Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d1ra06581e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Structure Determination of Biogenic Crystals Directly from 3D Electron Diffraction Data.

    Wagner, Avital / Merkelbach, Johannes / Samperisi, Laura / Pinsk, Noam / Kariuki, Benson M / Hughes, Colan E / Harris, Kenneth D M / Palmer, Benjamin A

    Crystal growth & design

    2024  Volume 24, Issue 3, Page(s) 899–905

    Abstract: Highly reflective assemblies of purine, pteridine, and flavin crystals are used in the coloration and visual systems of many different animals. However, structure determination of biogenic crystals by single-crystal XRD is challenging due to the ... ...

    Abstract Highly reflective assemblies of purine, pteridine, and flavin crystals are used in the coloration and visual systems of many different animals. However, structure determination of biogenic crystals by single-crystal XRD is challenging due to the submicrometer size and beam sensitivity of the crystals, and powder XRD is inhibited due to the small volumes of powders, crystalline impurity phases, and significant preferred orientation. Consequently, the crystal structures of many biogenic materials remain unknown. Herein, we demonstrate that the 3D electron diffraction (3D ED) technique provides a powerful alternative approach, reporting the successful structure determination of biogenic guanine crystals (from spider integument, fish scales, and scallop eyes) from 3D ED data confirmed by analysis of powder XRD data. The results show that all biogenic guanine crystals studied are the previously known β-polymorph. This study highlights the considerable potential of 3D ED for elucidating the structures of biogenic molecular crystals in the nanometer-to-micrometer size range. This opens up an important opportunity in the development of organic biomineralization, for which structural knowledge is critical for understanding the optical functions of biogenic materials and their possible applications as sustainable, biocompatible optical materials.
    Language English
    Publishing date 2024-01-14
    Publishing country United States
    Document type Journal Article
    ISSN 1528-7483
    ISSN 1528-7483
    DOI 10.1021/acs.cgd.3c01290
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Diverse Reactivity of Amidinate-Supported Boron Centers with the Hypersilyl Anion and Access to a Monomeric Secondary Boron Hydride.

    Pahar, Sanjukta / van Ingen, Yara / Babaahmadi, Rasool / Kariuki, Benson M / Wirth, Thomas / Richards, Emma / Melen, Rebecca L

    Inorganic chemistry

    2024  Volume 63, Issue 18, Page(s) 8302–8311

    Abstract: Diverse reactivity of the bulky tris(trimethylsilyl)silyl substituent [Si( ... ...

    Abstract Diverse reactivity of the bulky tris(trimethylsilyl)silyl substituent [Si(SiMe
    Language English
    Publishing date 2024-04-23
    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.4c00612
    Database MEDical Literature Analysis and Retrieval System OnLINE

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