Visible light generation of I-I bonds by Ru-tris(diimine) excited states.

Proceedings of the National Academy of Sciences of the United States of America
Byron H FarnumGerald J Meyer

Abstract

Seven Ru-tris(diimine) compounds were prepared to study the photooxidation of iodide. Iodide oxidation results in the formation of I-I bonds, and it is therefore relevant to the conversion and storage of solar energy. Iodide oxidation is also a key step for electrical power generation in dye-sensitized solar cells. The mechanistic details of iodide oxidation and I-I bond formation were elucidated through time-resolved spectroscopic measurements. Bimolecular electron-transfer reactions between Ru-tris(diimine) excited states and iodide first yielded the iodine atom that subsequently reacted with excess I(-) to yield the I-I bond of diiodide (I(2)•-)). An important finding was that excited-state iodide oxidation was rapid (k > 10(9) M(-1) s(-1)) even for thermodynamically uphill reactions. These results indicated that iodide oxidation to the iodine atom may account for a significant fraction of sensitizer regeneration within dye-sensitized solar cells.

References

Feb 19, 2002·Chemical Reviews·Pingyun Chen, Thomas J. Meyer
May 10, 2005·Inorganic Chemistry·Christopher C ClarkGerald J Meyer
Jan 5, 2006·Inorganic Chemistry·Andras MartonGerald J Meyer
Apr 11, 2006·Inorganic Chemistry·Xiaoguang Wang, David M Stanbury
Dec 4, 2008·Journal of the American Chemical Society·James M GardnerGerald J Meyer
Oct 23, 2009·Accounts of Chemical Research·Gerrit Boschloo, Anders Hagfeldt
Oct 24, 2009·Journal of the American Chemical Society·James M GardnerGerald J Meyer
Sep 14, 2010·Chemical Reviews·Anders HagfeldtHenrik Pettersson
Jan 18, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Byron H FarnumGerald J Meyer

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Citations

Jan 2, 2013·Inorganic Chemistry·Byron H FarnumGerald J Meyer
Feb 7, 2013·Journal of the American Chemical Society·Jiwon JeonHyungjun Kim
Aug 8, 2013·The Journal of Physical Chemistry. a·William M WardGerald J Meyer
Sep 29, 2012·Proceedings of the National Academy of Sciences of the United States of America·Javier J ConcepcionThomas J Meyer
Apr 2, 2016·The Journal of Physical Chemistry Letters·Derek R MorimKalaichelvi Saravanamuttu
Jul 23, 2015·Proceedings of the National Academy of Sciences of the United States of America·Gerald J Meyer
Jun 19, 2015·Journal of the American Chemical Society·Guocan LiGerald J Meyer
Dec 16, 2016·Journal of the American Chemical Society·Ludovic Troian-GautierGerald J Meyer
Oct 14, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Atefeh Taheri, Gerald J Meyer
Oct 17, 2013·Chemical Communications : Chem Comm·Jean-François LefebvreElizabeth A Gibson
Mar 22, 2014·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Maria AbrahamssonGerald J Meyer
Aug 11, 2020·The Journal of Chemical Physics·Sara A M WehlinGerald J Meyer
Mar 3, 2020·Chemical Science·Wesley B SwordsLeif Hammarström
Jan 12, 2013·Journal of the American Chemical Society·Kiyoshi C D RobsonCurtis P Berlinguette
Mar 30, 2018·Journal of the American Chemical Society·Guocan LiGerald J Meyer
Sep 22, 2017·Journal of the American Chemical Society·Guocan LiGerald J Meyer
Apr 15, 2015·Inorganic Chemistry·Wesley B SwordsGerald J Meyer
Sep 13, 2018·Inorganic Chemistry·Ludovic Troian-GautierGerald J Meyer
Mar 12, 2019·Chemical Reviews·Ludovic Troian-GautierGerald J Meyer
Sep 5, 2019·The Journal of Physical Chemistry. a·Nicolas Pascual-LeoneElizabeth R Young
Aug 31, 2017·Journal of the American Chemical Society·Sara A M WehlinGerald J Meyer
Dec 21, 2018·Accounts of Chemical Research·Ludovic Troian-GautierGerald J Meyer
Oct 27, 2017·Inorganic Chemistry·Tyler C MotleyGerald J Meyer

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