Discovery and High-Throughput Screening of Heteroleptic Iridium Complexes for Photoinduced Hydrogen Production
摘要:
The catalytic process of photoinduced hydrogen generation via the reduction of water has been investigated. The use of parallel synthetic techniques has facilitated the synthesis of a 32 member library of heteroleptic iridium complexes that was screened, using high-throughput photophysical techniques, to identify six potential photosensitizers for use in catalytic photoinduced hydrogen production. A Pd/Ni thin film hydrogen selective sensor allowed for rapid quantification of hydrogen produced via illumination of aqueous systems of the photosensitizer, tris(2,2'-dipyridyl)dichlorocobalt ([Co(bpy)(3)]Cl-2), and triethanolamine (a sacrificial reductant) with ultra-bright light emitting diodes (LEDs). The use of an 8-well parallel photoreactor expedited the investigation of the hydrogen evolution process and facilitated mechanistic studies. All six compounds investigated produced considerably more hydrogen than commonly utilized photosensitizers and had relative quantum efficiencies of hydrogen production up to 37 times greater than that of Ru(bpy)(3)(2+).
IRIDIUM COMPLEX COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE OBTAINED BY USING THE SAME, AND USES OF THE DEVICE
申请人:Igarashi Takeshi
公开号:US20090315454A1
公开(公告)日:2009-12-24
The present invention provides an organic EL device having a high luminous efficiency and a long life, and an iridium complex compound used for preparing the above device.
The iridium complex compound is represented by the following Formula (1):
[in Formula (1), R
1
to R
4
are each independently a specific group; at least one of R
1
to R
4
is a group having 2 or more carbon atoms; R
5
to R
8
are each independently a specific group; and at least one of R
5
to R
8
is a specific electron-withdrawing group; (with the proviso that R
1
to R
8
are not combined with each other to form rings)].
[EN] IRIDIUM COMPLEX COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE OBTAINED BY USING THE SAME, AND USES OF THE DEVICE<br/>[FR] COMPOSÉ COMPLEXE DE L'IRIDIUM, DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE OBTENU PAR UTILISATION DE CELUI-CI, ET UTILISATION DU DISPOSITIF
申请人:SHOWA DENKO KK
公开号:WO2008056799A1
公开(公告)日:2008-05-15
[EN] The present invention provides an organic EL device having a high luminous efficiency and a long life, and an iridium complex compound used for preparing the above device. The iridium complex compound is represented by the following Formula (1): (1) [in Formula (1), R1 to R4 are each independently a specific group; at least one of R1 to R4 is a group having 2 or more carbon atoms; R5 to R8 are each independently a specific group; and at least one of R5 to R8 is a specific electron-withdrawing group; (with the proviso that R1 to R8 are not combined with each other to form rings)]. [FR] La présente invention concerne un dispositif électroluminescent organique ayant un rendement lumineux élevé et une longue durée de vie, ainsi qu'un composé complexe de l'iridium utilisé pour préparer le dispositif ci-dessus. Le composé complexe de l'iridium est représenté par la Formule suivante (1) : (1) [dans la Formule (1), R1 à R4 sont chacun indépendamment un groupe spécifique; au moins l'un de R1 à R4 est un groupe ayant 2 atomes de carbone ou plus; R5 à R8 représentent chacun indépendamment un groupe spécifique; et au moins l'un de R5 à R8 est un groupe extracteur d'électrons spécifique (à la condition que R1 à R8 ne sont pas combinés entre eux pour former des noyaux)].
Highly Fluorinated Ir(III)–2,2′:6′,2″-Terpyridine–Phenylpyridine–X Complexes via Selective C–F Activation: Robust Photocatalysts for Solar Fuel Generation and Photoredox Catalysis
作者:Jonathan A. Porras、Isaac N. Mills、Wesley J. Transue、Stefan Bernhard
DOI:10.1021/jacs.6b03246
日期:2016.8.3
A series of fluorinated Ir(III)-terpyridine-phenylpyridine-X (X = anionic monodentate ligand) complexes were synthesized by selective C-F activation, whereby perfluorinated phenylpyridines were readily complexed. The combination of fluorinated phenylpyridine ligands with an electron-rich tri-tert-butyl terpyridine ligand generates a "push-pull" force on the electrons upon excitation, imparting significant
Discovery and High-Throughput Screening of Heteroleptic Iridium Complexes for Photoinduced Hydrogen Production
作者:Jonas I. Goldsmith、William R. Hudson、Michael S. Lowry、Timothy H. Anderson、Stefan Bernhard
DOI:10.1021/ja0427101
日期:2005.5.25
The catalytic process of photoinduced hydrogen generation via the reduction of water has been investigated. The use of parallel synthetic techniques has facilitated the synthesis of a 32 member library of heteroleptic iridium complexes that was screened, using high-throughput photophysical techniques, to identify six potential photosensitizers for use in catalytic photoinduced hydrogen production. A Pd/Ni thin film hydrogen selective sensor allowed for rapid quantification of hydrogen produced via illumination of aqueous systems of the photosensitizer, tris(2,2'-dipyridyl)dichlorocobalt ([Co(bpy)(3)]Cl-2), and triethanolamine (a sacrificial reductant) with ultra-bright light emitting diodes (LEDs). The use of an 8-well parallel photoreactor expedited the investigation of the hydrogen evolution process and facilitated mechanistic studies. All six compounds investigated produced considerably more hydrogen than commonly utilized photosensitizers and had relative quantum efficiencies of hydrogen production up to 37 times greater than that of Ru(bpy)(3)(2+).