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dc.contributor.author이상욱-
dc.date.accessioned2017-04-06T02:44:54Z-
dc.date.available2017-04-06T02:44:54Z-
dc.date.issued2015-07-
dc.identifier.citationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v. 137, NO 25, Page. 8018-8021en_US
dc.identifier.issn0002-7863-
dc.identifier.urihttp://pubs.acs.org/doi/abs/10.1021/jacs.5b04576-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/26632-
dc.description.abstractIridium(III) cyclometalates (1c and 2c) in which the two carborane units on the 4- or 5-positions of 2-phenylpyridine (ppy) ligands were tethered by an alkylene linker were prepared to investigate the effect of free rotation of o-carborane on phosphorescence efficiency. In comparison with the unlinked complex, tethering the o-carboranes to the 5-positions of ppy ligands (2c) enhanced phosphorescence efficiency by over 30-fold in polar medium (Phi(PL) = 0.37 vs 0.011 in THF), while restricting the rotation of o-carborane at the 4-positions (1c) negatively affected the phosphorescence efficiency. The different effects of restricted rotation of o-carborane on phosphorescence efficiency were likely a result of the different variations of the carboranyl C-C bond distances in the excited state.en_US
dc.description.sponsorshipThis work was supported by the Basic Science Research Program (NRF-2014R1A1A2056364 for M.H.L. and NRF-2013R1A1A2058722 for Y.H.L.), and Priority Research Centers program (2009-0093818) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education. S.U.L. would like to express sincere thanks to the crews of Center for Computational Materials Science of the Institute for Materials Research, Tohoku University, for their continuous support of the SR16000 supercomputing facilities.en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectC-C DISTANCEen_US
dc.subjectRED PHOSPHORESCENCEen_US
dc.subjectPOLYHEDRAL BORANESen_US
dc.subjectCOMPLEXESen_US
dc.subjectDERIVATIVESen_US
dc.subjectLIGANDen_US
dc.subjectORGANOBORANESen_US
dc.subjectSUBSTITUTIONen_US
dc.subjectPHOTOPHYSICSen_US
dc.subjectAROMATICITYen_US
dc.titleIridium Cyclometalates with Tethered o-Carboranes: Impact of Restricted Rotation of o-Carborane on Phosphorescence Efficiencyen_US
dc.typeArticleen_US
dc.relation.no25-
dc.relation.volume137-
dc.identifier.doi10.1021/jacs.5b04576-
dc.relation.page8018-8021-
dc.relation.journalJOURNAL OF THE AMERICAN CHEMICAL SOCIETY-
dc.contributor.googleauthorLee, Young Hoon-
dc.contributor.googleauthorPark, Jihyun-
dc.contributor.googleauthorLee, Junseong-
dc.contributor.googleauthorLee, Sang Uck-
dc.contributor.googleauthorLee, Min Hyung-
dc.relation.code2015003245-
dc.sector.campusS-
dc.sector.daehakGRADUATE SCHOOL[S]-
dc.sector.departmentDEPARTMENT OF BIONANOTECHNOLOGY-
dc.identifier.pidsulee-
dc.identifier.researcherIDJ-9027-2014-
dc.identifier.orcidhttp://orcid.org/0000-0001-9596-2349-
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GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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