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Solution Properties, Electrochemical Behavior and Protein Interactions of Water Soluble Triosmium Carbonyl Clusters

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F04%3A00101106" target="_blank" >RIV/61388955:_____/04:00101106 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Solution Properties, Electrochemical Behavior and Protein Interactions of Water Soluble Triosmium Carbonyl Clusters

  • Original language description

    The synthesis and solution chemistry of the water soluble clusters [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H)L+ ] (HBz = quinoxaline, L+= [P(OCH2CH2NMe3)3I3], (1) along with its negatively charged analog [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H)H)L-] (L- = [P(C6H4SO3)3Na3], (2) are reported. In addition, we have examined the reduction potentials of the complexes [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H)L] (HBz = phenanthridine, L = L+ (3); HBz = 5,6 benzoquinoline, L = L+ (4); HBz = 3-amino quinoline, L = L+ (5); HBz = 3-aminoquinoline, L = L- (6). The neutral analog of 1 and 2 [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H) PPh3] (Bz = quinoxaline, (7) was also examined for comparison. Both compounds 1 and 2 show pH dependent NMR spectra that are interpreted in terms of the extent of protonation of the uncoordinated quinoxaline nitrogen which impacts the degree of aggregation of the clusters in aqueous solution. Compound 1 undergoes a reversible 1e- reduction in water while 2 undergoes a quasi-reversible 1e- reduction.

  • Czech name

    Roztokové vlastnosti, elektrochemické chování a interakce ve vodě rozpustných tříosmiových karbonylových klastrů s proteiny

  • Czech description

    Syntéza a roztoková chemie ve vodě rozpustných klastrů [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H)L+ ] (HBZ = quin oxaline, L+= [P(OCH2CH2NMe3)3I3], (1 ) spolu s jejich záporně nabitým analogem [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H ) H)L- ] (L- = [P(C6H4SO3)3Na 3], (2)je popsána. Navic byla zkoumány redukční potenciály komplexů [Os3(CO)9(.mu.-.eta.2-Bz)(.mu.-H)L ] (HBZ = phenanthridine, L = L+ (3); HBZ = 5,6 benzoquinoline, L = L+ (4); HBZ = 3-aminoquinoline, L = L+ (5); HBZ = 3-aminoquinoline, L = L- (6). Neutrálníanalog komplexů 1 a 2 [O s3(CO)9(.mu.-.eta.2-Bz)(.mu.-H) PPH3 ] (Bz = quinoxaline, (7 ) byl také zkoumán pro srovnání. Obě sloučeniny 1 a 2 vykazují pH závislá NMR spektra, která jsou interpretována v podmínkách rozsahu z protonizace nekoordinovaného chinoxalinového dusíku, která ovlivňuje míru agregace klastrů ve vodném roztoku. Sloučenina 1 podléhá reversibilní 1e- redukci ve vodě, zatímco 1e- redukce 2 kvazireversibilní.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/OC%20D15.10" target="_blank" >OC D15.10: Electrochemistry of nano-structures at heterogeneous interfaces: formation, properties and electron transfer reactions.</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Organometallic Chemistry

  • ISSN

    0022-328X

  • e-ISSN

  • Volume of the periodical

    689

  • Issue of the periodical within the volume

    10

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    10

  • Pages from-to

    1796-1805

  • UT code for WoS article

  • EID of the result in the Scopus database