Výsledky vyhledávání - "Henry J. Mok"

Chloride ligation in inorganic manganese model compounds relevant to Photosystem II studied using X-ray absorption spectroscopy

Autor: Sumitra Mukhopadhyay, John H. Robblee, Samudranil Pal, Hendrik Visser, Shelly A. Pizarro, Roehl M. Cinco, William H. Armstrong, Vittal K. Yachandra, Henry J. Mok, Kenneth Sauer, Karl Wieghardt

Publikováno v: JBIC Journal of Biological Inorganic Chemistry. 9:247-255

Chloride ions are essential for proper function of the photosynthetic oxygen-evolving complex (OEC) of Photosystem II (PS II). Although proposed to be directly ligated to the Mn cluster of the OEC, the specific structural and mechanistic roles of chl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5ffc2491b32825e6785635a405fda61
https://doi.org/10.1007/s00775-003-0520-1

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Sterically crowded manganese-oxo complexes of N,N-bis(2-pyridylmethyl)-tert-butylamine with bridged binuclear core types {MnIII2(μ-O)(μ-OAc)2} and {MnIV2(μ-O)2(μ-OAc)}

Autor: William H. Armstrong, Samudranil Pal, Sanjay K. Mandal, John A. Davis, Henry J. Mok

Publikováno v: Inorganica Chimica Acta. 263:385-394

Reactions of Mn(O2CCH3)3 · 2H2O with N,N-bis(2-pyridylmethyl-tert-butylamine (bpta) in ethanol followed by the addition of excess NaClO4 or 70% aqueous HClO4 afforded complexes [Mn2O(O2CCH3)2(bpta)2](ClO4)2 (1) or [Mn2O2(O2CCH3)(bpta)2](ClO4)3 (2),

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a13288d1f39c712235ee611fe6eecad
https://doi.org/10.1016/s0020-1693(97)05701-0

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Shape-shifting tetranuclear oxo-bridged manganese cluster: relevance to photosystem II water oxidase active site

Autor: William H. Armstrong, Sumitra Mukhopadhyay, Henry J. Mok, Richard J. Staples

Publikováno v: Journal of the American Chemical Society. 126(30)

The redox properties of the "dimer-of-dimers" complex, [{Mn2(mu-O)2(tphpn)}2]4+ (1) (where Htphpn = N,N,N',N'-tetra(2-methylpyridyl)-2-hydroxypropane-diamine) were investigated. The structure changes dramatically to an adamantane-shaped core upon one

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3076e05ba5f5d4d44e45ad3b860c6bd
https://pubmed.ncbi.nlm.nih.gov/15281808

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Proton NMR Study of Oxo-Bridged Dimanganese(III) Complexes: Solution State Structures and an Isotropic Shift/Magnetic Exchange Correlation

Autor: Henry J. Mok, David W. Wright, Christopher E. Dubé, William H. Armstrong

Publikováno v: Inorganic chemistry. 37(15)

The (1)H NMR spectra of a series of manganese-oxo aggregates have been examined, and a characteristic signature was found for each complex. For the dimanganese(III,III) complexes [Mn(2)O(OAc)(2)(HB(pz)(3))(2)], [Mn(2)O(OAc)(2)(tacn)(2)](2+), [Mn(2)O(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c9e0c0c81cdf9d056d980537b3c613c
https://pubmed.ncbi.nlm.nih.gov/11670470

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Toward a better understanding of photosystem II using synthetic complexes

Autor: William H. Armstrong, Henry J. Mok, Sumitra Mukhopadhyay, Bhavesh A. Gandhi

Publikováno v: Journal of Inorganic Biochemistry. 96:18

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8530786836bed605180060b26dfcb0e3
https://doi.org/10.1016/s0162-0134(03)80433-6

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