Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Julie A, Kovacs"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 7, Pp 1042-1046 (2020)
The addition of tert-butyl hydroperoxide (tBuOOH) to two structurally related MnII complexes containing N,N-bis(6-methyl-2-pyridylmethyl)ethane-1,2-diamine (6-Me-DPEN) and N,N-bis(6-methyl-2-pyridylmethyl)propane-1,2-diamine (6-Me-DPPN) results in th
Externí odkaz:
https://doaj.org/article/466ea82320344aff9cb35d3565339c17
Publikováno v:
Inorg Chem
Superoxide (O(2)(•−)) is a toxic radical, generated via the adventitious reduction of dioxygen (O(2)), which has been implicated in a number of human disease states. Nonheme iron enzymes, superoxide reductase (SOR) and superoxide dismutase (SOD),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::287397507116b7144219b54003d58f9b
https://doi.org/10.1021/acs.inorgchem.1c00336
https://doi.org/10.1021/acs.inorgchem.1c00336
Publikováno v:
J Am Chem Soc
Herein, we examine the electronic and geometric structural properties of O(2)-derived aliphatic thiolate-ligated Feperoxo, Fe-hydroxo, and Fe(IV) oxo compounds. The latter cleaves strong C–H bonds (96 kcal mol(−1)) on par with the valine C–H bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31a35d9a3d5cbaa01b0aba09a4717d9b
https://pubmed.ncbi.nlm.nih.gov/35522532
https://pubmed.ncbi.nlm.nih.gov/35522532
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 7, Pp 1042-1046 (2020)
Acta Crystallographica Section E: Crystallographic Communications
Acta Crystallographica Section E: Crystallographic Communications
The addition of tert-butyl hydroperoxide (tBuOOH) to two MnII complexes, differing by a small synthetic alteration from an ethyl to a propyl linker in the ligand scaffold, results in the formation of the high-valent bis-oxo complexes {[MnIV(N4(6-Me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbb6430681f1bcb73e08fb827b5215c1
http://scripts.iucr.org/cgi-bin/paper?S2056989020004557
http://scripts.iucr.org/cgi-bin/paper?S2056989020004557
Autor:
Julie A. Kovacs, Dirk Schweitzer, Rodney D. Swartz, Maksym A. Dedushko, Maike N. Blakely, Werner Kaminsky
Publikováno v:
J Biol Inorg Chem
In order to shed light on metal-dependent mechanisms for O-O bond cleavage, and its microscopic reverse, we compare herein the electronic and geometric structures of O(2)-derived binuclear Co(III)- and Mn(III)-peroxo compounds. Binuclear metal peroxo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::876961a91850bdc30e58f86d3224eb41
https://doi.org/10.1007/s00775-019-01686-x
https://doi.org/10.1007/s00775-019-01686-x
Autor:
Morgan C. Gleaves, Julie A. Kovacs, Julian A. Rees, Dylan Rogers, Santiago Toledo, Werner Kaminsky, Penny Chaau Yan Poon
Publikováno v:
Inorganica Chim Acta
Reported herein is the structural, spectroscopic, redox, and reactivity properties of a series of iron complexes containing both a π-donating thiolate, and π-accepting N-heterocycles in the coordination sphere, in which we systematically vary the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e564da769b00fe4132555fbc24749bd7
https://pubmed.ncbi.nlm.nih.gov/34305163
https://pubmed.ncbi.nlm.nih.gov/34305163
Publikováno v:
Journal of the American Chemical Society. 143(16)
The work described herein demonstrates the exquisite control that the inner coordination sphere of metalloenzymes and transition-metal complexes can have on reactivity. We report one of few crystallographically characterized Mn-peroxo complexes and s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ed7c9937b33220aaace82f15bc4c925
https://pubmed.ncbi.nlm.nih.gov/33851827
https://pubmed.ncbi.nlm.nih.gov/33851827
Autor:
Julie A. Kovacs, Maike N. Blakely, Gloria Villar-Acevedo, Penny Chaau Yan Poon, Maksym A. Dedushko
Publikováno v:
Journal of the American Chemical Society. 141:1867-1870
Herein, we describe an alkyl thiolate-ligated iron complex that reacts with dioxygen to form an unprecedented example of an iron superoxo (O2•–) intermediate, [FeIII(S2Me2N3(Pr,Pr))(O2)] (4), which...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e323a9fec8f59f162c9c2e8ca8f55e38
https://doi.org/10.1021/jacs.8b12670
https://doi.org/10.1021/jacs.8b12670
Autor:
Joanna K. Kowalska, Serena DeBeer, Sonny C. Lee, Edwige Otero, Brahamjot Nayyar, Christine E. Schiewer, Julian A. Rees, Thomas Weyhermüller, Julie A. Kovacs, Franc Meyer
Publikováno v:
Inorganic Chemistry. 56:8147-8158
Herein, a systematic study of a series of molecular iron model complexes has been carried out using Fe L2,3-edge X-ray absorption (XAS) and X-ray magnetic circular dichroism (XMCD) spectroscopies. This series spans iron complexes of increasing comple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3b8314319b039ad66fad8b15e973d36
https://doi.org/10.1021/acs.inorgchem.7b00852
https://doi.org/10.1021/acs.inorgchem.7b00852
Autor:
Julian A. Rees, Stefan Stoll, Guang Yang, Xianru Sun, Marc C. Piquette, Maksym A. Dedushko, Ellen C. Hayes, Julie A. Kovacs, Audra Johansen, Elena V. Rybak-Akimova, Santiago Toledo, Penny Chaau Yan Poon
Publikováno v:
Journal of the American Chemical Society. 141(38)
Herein we quantitatively investigate how metal ion Lewis acidity and steric properties influence the kinetics and thermodynamics of dioxygen binding versus release from structurally analogous Mn–O2...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68cdf405b05bf128b8f786307964c346
https://pubmed.ncbi.nlm.nih.gov/31480847
https://pubmed.ncbi.nlm.nih.gov/31480847