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Synthesis and photochemistry of Ru(II) complexes containing phenanthroline-based ligands with fused pyrrole rings

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dc.contributor Wichita State University. Department of Chemistry en_US
dc.contributor.author Villegas, John M. en_US
dc.contributor.author Stoyanov, Stanislav R. en_US
dc.contributor.author Rillema, D. Paul en_US
dc.date.accessioned 2012-02-06T17:15:27Z
dc.date.available 2012-02-06T17:15:27Z
dc.date.issued 2002-12-16 en_US
dc.identifier 12470063 en_US
dc.identifier 0366543 en_US
dc.identifier ic020436a en_US
dc.identifier.citation Inorganic chemistry. 2002 Dec 16; 41(25): 6688-94. en_US
dc.identifier.issn 0020-1669 en_US
dc.identifier.uri http://hdl.handle.net/10057/4240
dc.description Full text of this article is not available in SOAR. en_US
dc.description.abstract Hydrolysis of 1,10-phenanthrolinopyrrole ethyl ester leads to the acid derivative which is unstable at room-temperature releasing CO(2) and forming 1,10-phenanthrolinopyrrole (php). The ligand reacts with ruthenium(II) to form a series of complexes of the general formula [Ru(php)(n)(bpy)(3-n)](2+), where bpy = 2,2'-bipyridine and n = 1-3. The photochemical properties reveal that the complexes have longer-lived excited states than the standard complex, [Ru(bpy)(3)](2+). Their emission lifetimes range from 9.04 micros (n = 1) to 35.5 micros (n = 3) at 77 K compared to 7.57 micros for the standard. Similarly, at room-temperature, emission lifetimes range from 1.20 micros (n = 1) to 1.70 micros (n = 3) relative to the standard (0.56 micros). The emission quantum yields also have higher values than the standard [Ru(bpy)(3)](2+) under similar conditions. The temperature-dependent studies for the complexes establish the distribution among the radiative, nonradiative, and (3)MLCT to (3)d-d decay channels and are in agreement with the energy gap law. en_US
dc.format.extent 6688-94 en_US
dc.language.iso eng en_US
dc.publisher American Chemical Society en_US
dc.relation.ispartofseries Inorganic chemistry en_US
dc.relation.ispartofseries Inorg Chem en_US
dc.source NLM en_US
dc.title Synthesis and photochemistry of Ru(II) complexes containing phenanthroline-based ligands with fused pyrrole rings en_US
dc.type Article en_US
dc.coverage.spacial United States en_US
dc.description.version peer reviewed en_US
dc.rights.holder Copyright © 2002 American Chemical Society en_US

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