U
Ursula Simonis
Researcher at San Francisco State University
Publications - 30
Citations - 1001
Ursula Simonis is an academic researcher from San Francisco State University. The author has contributed to research in topics: Nuclear magnetic resonance spectroscopy & Porphyrin. The author has an hindex of 16, co-authored 30 publications receiving 957 citations.
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Journal ArticleDOI
Models of the cytochromes b. Low-spin bis-ligated (porphinato)iron(III) complexes with unusual molecular structures and NMR, EPR, and Moessbauer spectra
Martin K. Safo,Govind P. Gupta,C. Todd Watson,Ursula Simonis,F. Ann Walker,W. Robert Scheidt +5 more
TL;DR: In this paper, the synthesis and characterization of the following bis-pyridine and bis-imidazole complexes of (tetramesityl-porphinato)iron(III) are reported.
Journal ArticleDOI
Pyrroloquinoline quinone preserves mitochondrial function and prevents oxidative injury in adult rat cardiac myocytes
Rong Tao,Joel S. Karliner,Ursula Simonis,Jie Zheng,Jianqing Zhang,Norman Honbo,Conrad C. Alano +6 more
TL;DR: Investigation of the ability of pyrroloquinoline quinone to confer resistance to acute oxidative stress in freshly isolated adult male rat cardiomyocytes provides direct evidence that PQQ reduces oxidative stress, mitochondrial dysfunction, and cell death in isolated adult rat carduomyocytes.
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Synthesis, spectroscopic, and structural studies of extremely short chain basket handle porphyrins and their zinc(II) complexes
Ursula Simonis,F. Ann Walker,Patricia Lani Lee,Bernard Hanquet,Dieter J. Meyerhoff,W. Robert Scheidt +5 more
TL;DR: In this article, the synthesis of extremely short chain basket handle porphyrins is described, and the structural assignment of the three different isomers is based on UV-vis and /sup 1/H NMR spectroscopy as well as on X-ray structure analysis of the Zn(II) complex of the hexyl-bridged isomer II.
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Interactions of Water-Insoluble Tetraphenylporphyrins with Micelles Probed by UV−Visible and NMR Spectroscopy†,‡
TL;DR: In this article, four uniquely p-phenyl-substituted tetraphenylporphyrins were synthesized and were allowed to diffuse into aqueous micellar solutions formed by the surfactants tetradecyltrimethylammonium bromide (TTAB), sodium dodecyl sulfate (SDS), and poly(ethylene glycol)-p-t-octylphenol (TX-100).
Journal ArticleDOI
Orientational binding of substituted naphthoate counterions to the tetradecyltrimethylammonium bromide micellar interface
TL;DR: In this article, the orientational binding of four naphthoate anions to the tetradecyltrimethylammonium bromide (TTAB) micellar interface has been studied by recording surface tension and 1 H NMR data.