@article{yang_yarnell_el roz_castellano_2020, title={A Robust Visible-Light-Harvesting Cyclometalated Ir(III) Diimine Sensitizer for Homogeneous Photocatalytic Hydrogen Production}, volume={3}, ISSN={2574-0962 2574-0962}, url={http://dx.doi.org/10.1021/acsaem.9b02269}, DOI={10.1021/acsaem.9b02269}, abstractNote={A cyclometalated Ir(III) diimine complex [Ir(NBI)2(phen)]PF6, NBI = 1,8-naphthalenebenzimidizole and phen = 1,10-phenanthroline, exhibits excellent photostability as a sensitizer in a three-compone...}, number={2}, journal={ACS Applied Energy Materials}, publisher={American Chemical Society (ACS)}, author={Yang, Mo and Yarnell, James E. and El Roz, Karim and Castellano, Felix N.}, year={2020}, month={Jan}, pages={1842–1853} }
 @article{el roz_castellano_2017, title={Photochemical upconversion in water}, volume={53}, ISSN={1359-7345 1364-548X}, url={http://dx.doi.org/10.1039/c7cc07188d}, DOI={10.1039/c7cc07188d}, abstractNote={The current investigation achieves photochemical upconversion in pure water using combinations of water soluble Ru(ii) metal-to-ligand charge transfer (MLCT) sensitizers in concert with 9-anthracenecarboxylate (AnCO2−) and 1-pyrenecarboxylate (PyCO2−).}, number={85}, journal={Chem. Commun.}, publisher={Royal Society of Chemistry (RSC)}, author={El Roz, Karim A. and Castellano, Felix N.}, year={2017}, pages={11705–11708} }
 @article{khnayzer_olaiya_el roz_castellano_2016, title={Homogeneous Photocatalytic H-2 Production Using a Ru-II Bathophenanthroline Metal-to-Ligand Charge-Transfer Photosensitizer}, volume={81}, ISSN={["2192-6506"]}, url={https://doi.org/10.1002/cplu.201600227}, DOI={10.1002/cplu.201600227}, abstractNote={Abstract}, number={10}, journal={CHEMPLUSCHEM}, publisher={Wiley-Blackwell}, author={Khnayzer, Rony S. and Olaiya, Babatunde S. and El Roz, Karim A. and Castellano, Felix N.}, year={2016}, month={Oct}, pages={1090–1097} }
 @article{jurss_khnayzer_panetier_el roz_nichols_head-gordon_long_castellano_chang_2015, title={Bioinspired design of redox-active ligands for multielectron catalysis: effects of positioning pyrazine reservoirs on cobalt for electro- and photocatalytic generation of hydrogen from water}, volume={6}, ISSN={["2041-6539"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84937232650&partnerID=MN8TOARS}, DOI={10.1039/c5sc01414j}, abstractNote={We report the effects of installing redox-active pyrazines at distinct positions in a series of isostructural Co catalysts.}, number={8}, journal={CHEMICAL SCIENCE}, author={Jurss, Jonah W. and Khnayzer, Rony S. and Panetier, Julien A. and El Roz, Karim A. and Nichols, Eva M. and Head-Gordon, Martin and Long, Jeffrey R. and Castellano, Felix N. and Chang, Christopher J.}, year={2015}, pages={4954–4972} }
 @article{bartelmess_francis_el roz_castellano_weare_sommer_2014, title={Light-Driven Hydrogen Evolution by BODIPY-Sensitized Cobaloxime Catalysts}, volume={53}, ISSN={["1520-510X"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-84899787366&partnerID=MN8TOARS}, DOI={10.1021/ic500218q}, abstractNote={We report four photocatalytically active cobaloxime complexes for light-driven hydrogen evolution. The cobaloxime catalysts are sensitized by different meso-pyridyl boron dipyrromethene (BODIPY) chromophores, bearing either two bromo- or iodo-substituents on the BODIPY core. The pyridine linker between the BODIPY and cobaloxime is further modified by a methyl substituent on the pyridine, influencing the stability and electronic properties of the cobaloxime catalyst and thus the photocatalytic efficiency of each system. Four cobaloxime catalyst complexes and three novel BODIPY chromophores are synthesized and characterized by absorption, fluorescence, infrared (IR) and nuclear magnetic resonance (NMR) spectroscopy, mass spectrometry, and electrochemistry. Crystal structures for the BODIPY-cobaloxime complexes 2 and 3 are presented. In contrast to the photocatalytically inactive, nonhalogenated reference complex 1, the four newly reported molecules are active for photocatalytic hydrogen evolution, with a maximum turnover number (TON) of 30.9 mol equiv of H2 per catalyst for the meso-methylpyridyl 2,6-diiodo BODIPY-sensitized cobaloxime complex 5. We conclude that accessing the photoexcited triplet state of the BODIPY chromophore by introducing heavy atoms (i.e., bromine or iodine) is necessary for efficient electron transfer in this system, enabling catalytic hydrogen generation. In addition, relatively electron-donating pyridyl linkers improve the stability of the complex, increasing the overall TON for hydrogen production.}, number={9}, journal={INORGANIC CHEMISTRY}, publisher={American Chemical Society (ACS)}, author={Bartelmess, Juergen and Francis, Aaron J. and El Roz, Karim A. and Castellano, Felix N. and Weare, Walter W. and Sommer, Roger D.}, year={2014}, month={May}, pages={4527–4534} }