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  1. Buch ; Online: σ- and π-Hole Interactions

    Frontera, Antonio

    2021  

    Schlagwörter Research & information: general ; Biology, life sciences ; non-covalent interactions ; regium bonds ; silver(I) ; coinage metals ; pyrazolates ; phosphines ; halogen bonding ; hydrogen bonding sigma-hole interactions ; theoretical studies ; characterizations ; noncovalent interactions ; Lewis acids ; Lewis bases ; spodium bonds ; σ/π-hole interactions ; EDTA ; 2,6-diaminopurine ; cadmium ; co-crystal ; H-bonding ; π-π stacking ; triazinane ; 1,3,5-Triazacyclohexane ; Hirshfeld surface analysis ; DFT study ; C-H···π interaction ; hybridization of a nitrogen atom in sulfonamides ; molecular cocrystal ; sandwiched-layer structure ; C-I···F halogen bonds ; π···π stacking interactions ; PBE0-D3(BJ) calculations ; secondary bonding ; supramolecular ; crystal engineering ; tetrel bonding ; pnictogen bonding ; chalcogen bonding ; selenium ; structural chemistry ; main group elements ; π-hole interaction ; substituent effects ; vibrational spectroscopy ; local vibrational mode theory ; direct measure for π-hole interaction strength ; noncovalent interaction ; hydrogen bonding ; nickel ; Schiff bases ; crystallography ; σ-hole ; π-hole ; crystal growth ; supramolecular chemistry ; σ-hole interactions ; self-assembly ; scanning tunneling microscopy
    Umfang 1 electronic resource (212 pages)
    Verlag MDPI - Multidisciplinary Digital Publishing Institute
    Erscheinungsort Basel, Switzerland
    Dokumenttyp Buch ; Online
    Anmerkung English ; Open Access
    HBZ-ID HT021043917
    ISBN 9783036504650 ; 3036504656
    Datenquelle ZB MED Katalog Medizin, Gesundheit, Ernährung, Umwelt, Agrar

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  2. Artikel ; Online: On the Existence of Pnictogen Bonding Interactions in As(III) S-Adenosylmethionine Methyltransferase Enzymes.

    Gomila, Rosa M / Frontera, Antonio

    Chemistry, an Asian journal

    2024  Band 19, Heft 8, Seite(n) e202400081

    Abstract: As(III) S-adenosylmethionine methyltransferases, pivotal enzymes in arsenic metabolism, facilitate the methylation of arsenic up to three times. This process predominantly yields trivalent mono- and dimethylarsenite, with trimethylarsine forming in ... ...

    Abstract As(III) S-adenosylmethionine methyltransferases, pivotal enzymes in arsenic metabolism, facilitate the methylation of arsenic up to three times. This process predominantly yields trivalent mono- and dimethylarsenite, with trimethylarsine forming in smaller amounts. While this enzyme acts as a detoxifier in microbial systems by altering As(III), in humans, it paradoxically generates more toxic and potentially carcinogenic methylated arsenic species. The strong affinity of As(III) for cysteine residues, forming As(III)-thiolate bonds, is exploited in medical treatments, notably in arsenic trioxide (Trisenox®), an FDA-approved drug for leukemia. The effectiveness of this drug is partly due to its interaction with cysteine residues, leading to the breakdown of key oncogenic fusion proteins. In this study, we extend the understanding of As(III)'s binding mechanisms, showing that, in addition to As(III)-S covalent bonds, noncovalent O⋅⋅⋅As pnictogen bonding plays a vital role. This interaction significantly contributes to the structural stability of the As(III) complexes. Our crystallographic analysis using the PDB database of As(III) S-adenosylmethionine methyltransferases, augmented by comprehensive theoretical studies including molecular electrostatic potential (MEP), quantum theory of atoms in molecules (QTAIM), and natural bond orbital (NBO) analysis, emphasizes the critical role of pnictogen bonding in these systems. We also undertake a detailed evaluation of the energy characteristics of these pnictogen bonds using various theoretical models. To our knowledge, this is the first time pnictogen bonds in As(III) derivatives have been reported in biological systems, marking a significant advancement in our understanding of arsenic's molecular interactions.
    Mesh-Begriff(e) Methyltransferases/metabolism ; Methyltransferases/chemistry ; Humans ; Models, Molecular ; Static Electricity ; Quantum Theory ; S-Adenosylmethionine/chemistry ; S-Adenosylmethionine/metabolism ; Arsenic/chemistry ; Arsenic/metabolism
    Chemische Substanzen Methyltransferases (EC 2.1.1.-) ; S-Adenosylmethionine (7LP2MPO46S) ; Arsenic (N712M78A8G)
    Sprache Englisch
    Erscheinungsdatum 2024-03-11
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2233006-9
    ISSN 1861-471X ; 1861-4728
    ISSN (online) 1861-471X
    ISSN 1861-4728
    DOI 10.1002/asia.202400081
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: A novel approach for estimating the strength of argentophilic and aurophilic interactions using QTAIM parameters.

    Burguera, Sergi / Bauzá, Antonio / Frontera, Antonio

    Physical chemistry chemical physics : PCCP

    2024  

    Abstract: Metallophilic interactions, specifically argentophilic (Ag⋯Ag) and aurophilic (Au⋯Au) interactions, play a crucial role in stabilizing various molecular and solid-state structures. In this manuscript, we present a convenient method to estimate the ... ...

    Abstract Metallophilic interactions, specifically argentophilic (Ag⋯Ag) and aurophilic (Au⋯Au) interactions, play a crucial role in stabilizing various molecular and solid-state structures. In this manuscript, we present a convenient method to estimate the strength of argentophilic and aurophilic interactions based on quantum theory of atoms in molecules (QTAIM) parameters evaluated at the bond critical points connecting the metal centres. We employ density functional theory (DFT) calculations and the QTAIM parameters to develop this energy predictor. To validate the reliability and applicability of our method, we test it using a selection of X-ray crystal structures extracted from the cambridge structural database (CSD), where argentophilic and aurophilic interactions are known to be significant in their solid-state arrangements. This method offers a distinct advantage in systems where multiple interactions, beyond metallophilic interactions, contribute to the overall stability of the structure. By employing our approach, researchers can distinctly quantify the strength of argentophilic and aurophilic interactions, facilitating a deeper understanding of their impact on molecular and solid-state properties. This method fills a critical gap in the existing literature, offering a valuable tool to researchers seeking to unravel the intricate interactions in metal-containing compounds.
    Sprache Englisch
    Erscheinungsdatum 2024-06-03
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d4cp00410h
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Noble Gas Bonding Interactions Involving Xenon Oxides and Fluorides.

    Frontera, Antonio

    Molecules (Basel, Switzerland)

    2020  Band 25, Heft 15

    Abstract: Noble gas (or aerogen) bond (NgB) can be outlined as the attractive interaction between an electron-rich atom or group of atoms and any element of Group-18 acting as an electron acceptor. The IUPAC already recommended systematic nomenclature for the ... ...

    Abstract Noble gas (or aerogen) bond (NgB) can be outlined as the attractive interaction between an electron-rich atom or group of atoms and any element of Group-18 acting as an electron acceptor. The IUPAC already recommended systematic nomenclature for the interactions of groups 17 and 16 (halogen and chalcogen bonds, respectively). Investigations dealing with noncovalent interactions involving main group elements (acting as Lewis acids) have rapidly grown in recent years. They are becoming acting players in essential fields such as crystal engineering, supramolecular chemistry, and catalysis. For obvious reasons, the works devoted to the study of noncovalent Ng-bonding interactions are significantly less abundant than halogen, chalcogen, pnictogen, and tetrel bonding. Nevertheless, in this short review, relevant theoretical and experimental investigations on noncovalent interactions involving Xenon are emphasized. Several theoretical works have described the physical nature of NgB and their interplay with other noncovalent interactions, which are discussed herein. Moreover, exploring the Cambridge Structural Database (CSD) and Inorganic Crystal Structure Database (ICSD), it is demonstrated that NgB interactions are crucial in governing the X-ray packing of xenon derivatives. Concretely, special attention is given to xenon fluorides and xenon oxides, since they exhibit a strong tendency to establish NgBs.
    Mesh-Begriff(e) Fluorides/chemistry ; Models, Molecular ; Oxides/chemistry ; Quantum Theory ; Thermodynamics ; Xenon/chemistry
    Chemische Substanzen Oxides ; Xenon (3H3U766W84) ; Fluorides (Q80VPU408O)
    Sprache Englisch
    Erscheinungsdatum 2020-07-28
    Erscheinungsland Switzerland
    Dokumenttyp 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/molecules25153419
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Investigating Recurrent Matere Bonds in Pertechnetate Compounds.

    Grödler, Dennis / Burguera, Sergi / Frontera, Antonio / Strub, Erik

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2024  Band 30, Heft 22, Seite(n) e202400100

    Abstract: In this manuscript we evaluate the X-ray structure of five new pertechnetate derivatives of general formula [M( ... ...

    Abstract In this manuscript we evaluate the X-ray structure of five new pertechnetate derivatives of general formula [M(H
    Sprache Englisch
    Erscheinungsdatum 2024-02-28
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202400100
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: Hg(II)⋅d

    Burguera, Sergi / Bauzá, Antonio / Frontera, Antonio

    Chemphyschem : a European journal of chemical physics and physical chemistry

    2023  Band 24, Heft 24, Seite(n) e202300585

    Abstract: Some literature reports have shown the existence of short Hg(II)⋅⋅⋅ ... ...

    Abstract Some literature reports have shown the existence of short Hg(II)⋅⋅⋅d
    Sprache Englisch
    Erscheinungsdatum 2023-10-24
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 2025223-7
    ISSN 1439-7641 ; 1439-4235
    ISSN (online) 1439-7641
    ISSN 1439-4235
    DOI 10.1002/cphc.202300585
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: The crucial role of hydrogen bonding in shaping the structures of zinc-based coordination polymers using tridentate N, N, O donor reduced Schiff base ligands and bridging acetates.

    Middya, Puspendu / Frontera, Antonio / Chattopadhyay, Shouvik

    RSC advances

    2024  Band 14, Heft 20, Seite(n) 13905–13914

    Abstract: In this manuscript we report the synthesis and characterization of two new polynuclear zinc(ii) complexes, [ ... ...

    Abstract In this manuscript we report the synthesis and characterization of two new polynuclear zinc(ii) complexes, [Zn
    Sprache Englisch
    Erscheinungsdatum 2024-04-26
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 2046-2069
    ISSN (online) 2046-2069
    DOI 10.1039/d4ra00550c
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel ; Online: Tuning the Nucleophilicity and Electrophilicity of Group 10 Elements through Substituent Effects: A DFT Study.

    Burguera, Sergi / Bauzá, Antonio / Frontera, Antonio

    International journal of molecular sciences

    2023  Band 24, Heft 21

    Abstract: In this study, a series of electron donor (- ... ...

    Abstract In this study, a series of electron donor (-NH
    Mesh-Begriff(e) Models, Molecular ; Hydrogen Bonding ; Electrons ; Static Electricity
    Sprache Englisch
    Erscheinungsdatum 2023-10-26
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms242115597
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Enzymatic reversion of Pt(II) nucleophilicity through charge dumping: the case of Pt(CN)

    Burguera, Sergi / Frontera, Antonio / Bauzá, Antonio

    Chemical communications (Cambridge, England)

    2023  Band 59, Heft 86, Seite(n) 12847–12850

    Abstract: Combining computations and X-ray structure analysis we have demonstrated that [Pt( ... ...

    Abstract Combining computations and X-ray structure analysis we have demonstrated that [Pt(CN
    Sprache Englisch
    Erscheinungsdatum 2023-10-26
    Erscheinungsland England
    Dokumenttyp 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/d3cc03816e
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: σ- and π-Hole Interactions

    Antonio Frontera

    Crystals, Vol 10, Iss 721, p

    2020  Band 721

    Abstract: Supramolecular chemistry is a very active research field that was initiated in the last century [.] ...

    Abstract Supramolecular chemistry is a very active research field that was initiated in the last century [.]
    Schlagwörter σ-hole ; π-hole ; crystal engineering ; crystal growth ; supramolecular chemistry ; Crystallography ; QD901-999
    Sprache Englisch
    Erscheinungsdatum 2020-08-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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