301652-23-3Relevant articles and documents
Illuminating Stannylation
Sakamoto, Kyoka,Nagashima, Yuki,Wang, Chao,Miyamoto, Kazunori,Tanaka, Ken,Uchiyama, Masanobu
supporting information, p. 5629 - 5635 (2021/05/04)
We have developed photoboosted stannylation reactions of terminal alkynes (linear-selective hydrostannylation) and fluoroarenes (defluorostannylation), in which the stannyl anion is photoexcited to an excited triplet (T1) stannyl diradical species. This u
Platinum coordination compound, organic light emitting diode, and apparatus capable of emitting visible light or near infrared light
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Paragraph 0099; 0100, (2018/07/07)
The present invention provides a platinum coordination compound, an organic light emitting diode, and an apparatus capable of emitting visible light or near infrared light. The platinum coordination compound has a structure represented by the following general formula (I), wherein A1-A4 are respectively and independently an unsaturated 5-membered ring or an unsaturated 6-membered ring, X is carbonor nitrogen, the formal charge number of the first chelating ligand having A1 and A4 is negative univalence, and the formal charge number of the second chelating ligand having A2 and A3 is negative univalence. According to the present invention, the platinum coordination compound has advantages of stable structure, excellent luminous efficiency and simple synthesis steps. The general formula (I)is defined in the specification.
Ru(II) complexes of tetradentate ligands related to 2,9-Di(pyrid-2′- yl)-1,10-phenanthroline
Zhang, Gang,Zong, Ruifa,Tseng, Huan-Wei,Thummel, Randolph P.
, p. 990 - 998 (2008/10/09)
A series of 1,10-phenanthrolines were prepared having additional ligating substituents at the 2,9-positions. These substituents were either a 4-substituted pyrid-2-yl, quinolin-2-yl, 1,8-naphthyrid-2-yl, N-methyl imidazo-2-yl, or N-methyl benzimidazo-2-yl group. Additionally, 3,6-di-(pyrid-2′-yl)-dipyrido[3,2-a:2′,3′-c]phenazine was prepared. All but two of these ligands coordinated Ru(II) in a tetradentate equatorial fashion with two 4-methylpyridines bound in the axial sites. An X-ray structure analysis of the diimidazoyl system indicates considerable distortion from square planar geometry in the equatorial plane. Previously reported variations in the axial ligand for such complexes appear to have a stronger effect on the electronic absorption and redox properties of the system than similar changes in the equatorial ligand. In the presence of excess Ce(IV) as a sacrificial oxidant at pH 1, all the systems examined catalyze the decomposition of water to generate oxygen. Turnover numbers are modest, ranging from 146 to 416.