156492-30-7Relevant articles and documents
Bright and Long-Lived Emission from a Starburst-Type Arylborane-Appended Polypyridyl Ruthenium(II) Complex
Nakagawa, Atsushi,Ito, Akitaka,Sakuda, Eri,Fujii, Sho,Kitamura, Noboru
, p. 3794 - 3798 (2017)
The starburst-type arylborane-appended polypyridyl RuII complex [Ru{4,7-bis({dimesityl}boryldurylethynyl)-1,10-phenanthroline}3]2+ (1) was synthesized, and its spectroscopic and photophysical properties were evaluated. In the excited state of the complex, intramolecular charge transfer (CT) between the π orbital of the aryl group and the vacant p orbital of the boron atom [π(aryl)–p(B) CT] interacts synergistically with metal-to-ligand charge transfer (MLCT). The synergistic CT interactions in 1 are more effective than those in previously reported arylborane-appended polypyridyl RuII complexes and lead to bright (molar absorption coefficient of the MLCT band = 7.2 × 104 m–1 cm–1, emission quantum yield = 0.29) and long-lived emission (8.7 μs) of 1 in CH3CN at 298 K. The unique emission characteristics of 1 are discussed in detail together with its electrochemical properties and time-dependent DFT (TD-DFT) calculations.
Organic electroluminescence material and organic photoelectric device
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Paragraph 0129; 0134; 0135, (2017/07/19)
The invention provides a compound with a structure as shown in formula I. The invention also provides an application of the compound in an organic photoelectric device and the organic photoelectric device. The compound provided by the invention has a ther
The synthesis of aromatic diazatricycles from phenylenediamine-bis(methylene Meldrum's acid) derivatives
Graf, Gabriele Ina,Hastreiter, Daniel,Da Silva, Luiz Everson,Rebelo, Ricardo Andrade,Montalban, Antonio Garrido,McKillop, Alexander
, p. 9095 - 9100 (2007/10/03)
The thermocyclisation of phenylenediamine-bis(methylene Meldrum's acid) derivatives has been investigated. Those of o-phenylenediamines give 1,10-phenanthroline derivatives, while those of m- and p-phenylenediamines lead to the preferential formation of angular diazatricycles. Thus, for example, the di-Meldrum's acid derivative of 2,5-dichloro-1,4-phenylenediamine gives, via ipso-substitution, the unexpected angular product 19.