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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41412

Title: Cationic Iridium Complexes with Intramolecular Interaction and Enhanced Steric Hindrance for Solid-State Light-Emitting Electrochemical Cells
Authors: Hsiao-Fan Chen;Wen-Yi Hung;Shou-Wei Chen;Ting-Chih Wang;Shih-Wei Lin;Shu-Hua Chou;Chih-Teng Liao;Hai-Ching Su;Hsiao-An Pan;Pi-Tai Chou;Yi-Hung Liu;Ken-Tsung Wong
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2012
Issue Date: 2017-02-15T06:45:02Z
Publisher: Inorganic Chemistry
Abstract: Abstract: Cationic iridium complexes incorporated 4,5-diaza-9,9′-spirobifluorene as N∧N ancillary ligands, in which one (2) or two (3) phenyl groups were introduced onto 4,5-diazafluorene to afford intraligand π–π interactions. The X-ray crystal structures of complexes 2 and 3 show that the pendant phenyl ring forms strong intramolecular face-to-face π-stacking with the difluorophenyl ring of the cyclometalated ligand with distances of 3.38 Å for complex 2 and 3.40 and 3.46 Å for complex 3. This π–π stacking interaction minimizes the expansion of the metal–ligand bonds in the excited state, resulting in a longer device lifetime in the light-emitting electrochemical cell (LEC) devices.
Relation: 51(22)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41412
Appears in Collections:[光電科學研究所] 期刊論文

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