Ahrens, Michael J. and Bertin, Paul A. and Gaustad, Adam G. and Georganopoulou, Dimitra and Wunder, Markus and Blackburn, Gary F. and Gray, Harry B. and Meade, Thomas J. (2011) Spectroscopic and redox properties of amine-unctionalized K_2[Os-^(II)(bpy)(CN)_4] complexes. Dalton Transactions, 40 (8). pp. 1732-1736. ISSN 1477-9226 http://resolver.caltech.edu/CaltechAUTHORS:20110307-093950733
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We report the first examples of amine-functionalized K_2[Os^(II)(bpy)(CN)_4] (bpy = 2,2'-bipyridine) complexes. The tetracyanoosmate complexes were prepared by UV irradiation (λ = 254 nm) of K_4[Os^(II)(CN)_6] and primary amine-functionalized bpy ligands in acidic aqueous media. The aqueous solution pH dependences of the spectroscopic and redox properties of 4,4'- and 5,5'-substituted complexes have been investigated. The pendant amine functional groups and coordinated cyanide ligands are basic sites that can be sequentially protonated, thereby allowing systematic tuning of electrochemical and optical spectroscopic properties.
|Additional Information:||© 2011 Royal Society of Chemistry. Received 26th October 2010, Accepted 13th December 2010. We acknowledge the Integrated Molecular Structure Education and Research Center (IMSERC) at Northwestern University for instrument use (NMR, HRMS). Work at California Institute of Technology is supported by NIH DK019038.|
|Official Citation:||Spectroscopic and redox properties of amine-functionalized K2[OsII(bpy)(CN)4] complexes Michael J. Ahrens, Paul A. Bertin, Adam G. Gaustad, Dimitra Georganopoulou, Markus Wunder, Gary F. Blackburn, Harry B. Gray and Thomas J. Meade Dalton Trans., 2011, 40, 1732-1736 DOI: 10.1039/C0DT01478H|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||08 Mar 2011 18:04|
|Last Modified:||26 Dec 2012 13:00|
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