DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sharma, Sanjeev | ko |
dc.contributor.author | Kim, Hyungjun | ko |
dc.contributor.author | Lee, Young Hoon | ko |
dc.contributor.author | Kim, Taewon | ko |
dc.contributor.author | Lee, YS | ko |
dc.contributor.author | Lee, Min Hyung | ko |
dc.date.accessioned | 2015-01-27T02:47:30Z | - |
dc.date.available | 2015-01-27T02:47:30Z | - |
dc.date.created | 2014-09-22 | - |
dc.date.created | 2014-09-22 | - |
dc.date.issued | 2014-08 | - |
dc.identifier.citation | INORGANIC CHEMISTRY, v.53, no.16, pp.8672 - 8680 | - |
dc.identifier.issn | 0020-1669 | - |
dc.identifier.uri | http://hdl.handle.net/10203/193163 | - |
dc.description.abstract | Heteroleptic cyclometalated iridium(III) complexes (C boolean AND N)(2)Ir(Bpic) (4-6) (C boolean AND N = dfppy (4), ppy (5), btp (6)) supported by triarylborylpicolinate (Bpic) ancillary ligand were synthesized and characterized. X-ray diffraction study of 5 confirmed N boolean AND O chelation of the Bpic ligand to the iridium center forming an (C boolean AND N)(2)Ir borane conjugate. While the UV/vis absorption bands of 4-6 remained almost unchanged in the low-energy region upon fluoride addition, a ratiometric turn-on phosphorescence response was observed for 4 and 5. In contrast, the phosphorescence of 6 was little affected by fluoride binding. Experimental and theoretical studies suggest that the LUMO in neutral 4 and 5 is dominated by the Bpic ligand, which makes the weakly emissive (ML)-M-3'CT/(LL)-L-3'CT (L = C boolean AND N; L' = Bpic) states as the lowest-energy triplet excited state, while the fluoride binding to 4 and 5 induces the highly emissive (MLCT)-M-3/(3)pi pi* states centered on the (C boolean AND N)(2)Ir moiety. Thermally induced conversion from the (MLCT)-M-3/(3)pi pi* to the (ML)-M-3'CT/(LL)-L-3'CT states is suggested to be responsible for the low-energy weak phosphorescence in 4 and 5. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | 3-COORDINATE ORGANOBORON COMPOUNDS | - |
dc.subject | INTERLIGAND ENERGY-TRANSFER | - |
dc.subject | ELECTRON-ACCEPTING ABILITY | - |
dc.subject | MOLECULAR-ORBITAL METHODS | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | FLUORESCENCE RESPONSE | - |
dc.subject | CATIONIC BORANES | - |
dc.subject | ANCILLARY LIGAND | - |
dc.subject | MLCT PHOSPHORESCENCE | - |
dc.subject | IR(III) COMPLEXES | - |
dc.title | Heteroleptic Cyclometalated Iridium(III) Complexes Supported by Triarylborylpicolinate Ligand: Ratiometric Turn-On Phosphorescence Response upon Fluoride Binding | - |
dc.type | Article | - |
dc.identifier.wosid | 000340576900052 | - |
dc.identifier.scopusid | 2-s2.0-84962439051 | - |
dc.type.rims | ART | - |
dc.citation.volume | 53 | - |
dc.citation.issue | 16 | - |
dc.citation.beginningpage | 8672 | - |
dc.citation.endingpage | 8680 | - |
dc.citation.publicationname | INORGANIC CHEMISTRY | - |
dc.identifier.doi | 10.1021/ic501286m | - |
dc.contributor.localauthor | Lee, YS | - |
dc.contributor.nonIdAuthor | Sharma, Sanjeev | - |
dc.contributor.nonIdAuthor | Lee, Young Hoon | - |
dc.contributor.nonIdAuthor | Kim, Taewon | - |
dc.contributor.nonIdAuthor | Lee, Min Hyung | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | 3-COORDINATE ORGANOBORON COMPOUNDS | - |
dc.subject.keywordPlus | INTERLIGAND ENERGY-TRANSFER | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTING ABILITY | - |
dc.subject.keywordPlus | MOLECULAR-ORBITAL METHODS | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | FLUORESCENCE RESPONSE | - |
dc.subject.keywordPlus | CATIONIC BORANES | - |
dc.subject.keywordPlus | ANCILLARY LIGAND | - |
dc.subject.keywordPlus | MLCT PHOSPHORESCENCE | - |
dc.subject.keywordPlus | IR(III) COMPLEXES | - |
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