Sky Blue-Emitting Iridium(III) Complexes Bearing Nonplanar Tetradentate Chromophore and Bidentate Ancillary

Tetradentate chelates bearing tripodal arranged terpyridine and a functional pyrazole unit (i.e., L1-H and L2-H) were employed in preparation of Ir­(III) complexes [Ir­(L1)­Cl2] (1) and [Ir­(L2)­Cl2] (2); subsequent chloride-to-bipyrazolate substitution gave [Ir­(L1)­(bipz)] (3) and [Ir­(L2)­(bipz)]...

Full description

Saved in:
Bibliographic Details
Published inInorganic chemistry Vol. 56; no. 16; pp. 10054 - 10060
Main Authors Li, Yu-Sian, Liao, Jia-Ling, Lin, Ke-Ting, Hung, Wen-Yi, Liu, Shih-Hung, Lee, Gene-Hsiang, Chou, Pi-Tai, Chi, Yun
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 21.08.2017
Online AccessGet full text

Cover

More Information
Summary:Tetradentate chelates bearing tripodal arranged terpyridine and a functional pyrazole unit (i.e., L1-H and L2-H) were employed in preparation of Ir­(III) complexes [Ir­(L1)­Cl2] (1) and [Ir­(L2)­Cl2] (2); subsequent chloride-to-bipyrazolate substitution gave [Ir­(L1)­(bipz)] (3) and [Ir­(L2)­(bipz)] (4). Single-crystal X-ray structural studies on 1 and 3 showed the possession of a tetradentate chelate, whereas the remaining cis-sites are occupied by either dual chlorides or the bipz chelate, respectively. Sky blue organic light-emitting diode with peak efficiencies (10.1%, 19.8 cd·A–1, and 20.4 lm·W–1) was successfully fabricated using 3 (or 4) as dopant emitter, highlighting the potential application of this class of Ir­(III) phosphor.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.7b01583