Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Codrina V. Popescu"'
Autor:
Charles G. Riordan, Mohamed Saber, Glenn P. A. Yap, Peter E. VanNatta, Matthew T. Kieber-Emmons, Codrina V. Popescu, Kim R. Dunbar, Peng Wang, Christopher C. Scarborough
Publikováno v:
Inorganic Chemistry. 60:6480-6491
Incorporating radical ligands into metal complexes is one of the emerging trends in the design of single-molecule magnets (SMMs). While significant effort has been expended to generate multinuclear transition metal-based SMMs with bridging radical li
Autor:
Danushka M. Ekanayake, Andrew L Probst, Codrina V. Popescu, Dao Pham, Joshua R Miller, Adam T. Fiedler
Publikováno v:
Dalton Trans
The activation of O(2) at thiolate–ligated iron(ii) sites is essential to the function of numerous metalloenzymes and synthetic catalysts. Iron–thiolate bonds in the active sites of nonheme iron enzymes arise from either coordination of an endoge
Publikováno v:
Journal of Biological Chemistry. 295:15454-15463
The ferric uptake regulator (Fur) is a global transcription factor that regulates intracellular iron homeostasis in bacteria. The current hypothesis states that when the intracellular "free" iron concentration is elevated, Fur binds ferrous iron, and
Autor:
Codrina V. Popescu, Anne A. Fischer, Alexandra M Guzek, Danushka M. Ekanayake, Adam T. Fiedler, Maya E Elwood, Sergey V. Lindeman
Publikováno v:
Dalton Trans
Two mononuclear iron(II)–thiolate complexes have been prepared that represent structural models of the nonheme iron enzymes EgtB and OvoA, which catalyze the O(2)-dependent formation of carbon-sulfur bonds in the biosynthesis of thiohistidine compo
Autor:
Joaquín Rodríguez-López, Richard L. Lord, Michael J. Drummond, Tabitha J. Miller, Zachary Gordon, Codrina V. Popescu, Ellen M. Matson, Clare A. Leahy, Connor M. Smith, Mark Burgess, Alison R. Fout
Publikováno v:
Inorganic Chemistry. 58:15801-15811
O2 activation at nonheme iron centers is a common motif in biological systems. While synthetic models have provided numerous insights into the reactivity of high-valent iron–oxo complexes related t...
Publikováno v:
Inorganic Chemistry. 58:7069-7077
Mossbauer spectroscopy and density functional theory (DFT) calculations are reported for the mononuclear Fe–nitrosyl complex [Fe(N,N′-bis(2-mercaptoethyl)-1,4-diazacycloheptane)NO] {[Fe(bme-dach)(NO)] (1)} and the series of dithiolate-bridged din
Publikováno v:
Journal of the American Chemical Society. 141:6639-6650
The characterization of high-valent iron centers in enzymes has been aided by synthetic model systems that mimic their reactivity or structural and spectral features. For example, the cleavage of dioxygen often produces an iron(IV)-oxo that has been
Publikováno v:
J Biol Chem
For decades, the bacterial ferric uptake regulator (Fur) has been thought to respond to ferrous iron to transcriptionally regulate genes required for balancing iron uptake, storage, and utilization. Because iron binding to Fur has never been confirme
Autor:
Eric S. Wiedner, Nicholas A. Piro, R. Morris Bullock, W. Scott Kassel, Michael T. Mock, Codrina V. Popescu, Eric D. Walter, Demyan E. Prokopchuk
Publikováno v:
Journal of the American Chemical Society. 139:9291-9301
The geometric constraints imposed by a tetradentate P4N2 ligand play an essential role in stabilizing square planar Fe complexes with changes in metal oxidation state. The square pyramidal Fe0(N2)(P4N2) complex catalyzes the conversion of N2 to N(SiR
Autor:
Zachary, Gordon, Tabitha J, Miller, Clare A, Leahy, Ellen M, Matson, Mark, Burgess, Michael J, Drummond, Codrina V, Popescu, Connor M, Smith, Richard L, Lord, Joaquín, Rodríguez-López, Alison R, Fout
Publikováno v:
Inorganic chemistry. 58(23)
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