110155-13-0Relevant academic research and scientific papers
Planarized: B, N -phenylated dibenzoazaborine with a carbazole substructure: Electronic impact of the structural constraint
Ando, Mikinori,Sakai, Mika,Ando, Naoki,Hirai, Masato,Yamaguchi, Shigehiro
, p. 5500 - 5504 (2019)
A B,N-diphenyl-5,10-dihydro-dibenzo-1,4-azaborine, in which both phenyl groups on the boron and nitrogen atoms are planarized to generate a carbazole substructure, was synthesized. The structral constraint around the boron and nitrogen atoms alters the π-conjugation mode and thus the photophysical and electrochemical properties. Specifically, this structurally constrained dibenzoazaborine showed an intense blue emission with a narrow full width at half maximum. One of its derivatives exhibited near infrared absorption in the one-electron-oxidized state.
Planarized B,N-diarylated dibenzoazaborine compounds for deep blue fluorescence
Istiqomah, Ina Nur,Jung, Jaehoon,Lee, Min Hyung,Lee, Taehwan,Mubarok, Hanif,Nguyen, Ngoc Tuyet Nhi
supporting information, (2021/12/23)
A series of planarized B,N-diarylated dibenzoazaborine compounds (5a–5e) in which various functional groups are introduced into the B-Ph and N-Ph moieties of nonsubstituted dibenzoazaborine compound (I) were prepared. All compounds exhibit strong low-energy absorptions at ca. 410–426 nm with a gradual red-shift depending on the electron-accepting property of the four substituents (4-R?=?4-Ph tBu group into the N-Ph ring further shifts slightly the absorption band toward a lower-energy region (5e). Importantly, all compounds undergo gradual red-shifts in the emission leading to deep blue fluorescence for CN-substituted 5d and 5e. Furthermore, the emissions have narrow full width at half maximum values of ca. 30 nm, high photoluminescence quantum yields (ΦPL ≈ 100%), and small Stokes shifts (11–16 nm). The electrochemical and theoretical studies further support the bandgap control and photophysical properties of compounds.
A 6H - naphtho [2, 1, 8, 7 - klmn] stronger cooperation derivatives and use thereof
-
Paragraph 0070; 0074; 0076, (2017/06/10)
The invention relates to compounds disclosed as Formula (1), wherein n is 1 or 2; Ar1 and Ar2 are respectively aryl group or heteroaryl group; R1-R5 are five substituent groups on Ar2 in different positions, are identical or different, and are respectively independently selected from H atom, C1-C20 aliphatic straight-chain or branched-chain hydrocarbyl groups and aromatic groups; A is N atom or CH; and L is a single bond C4-C10 aromatic ring or aromatic heterocyclic ring. The invention also relates to application of the compounds in organic electroluminescent devices especially as an electron transport material and/or light-emitting body material of an OLED (organic light-emitting diode).
FOUR-COORDINATE BORON COMPOUNDS
-
Page/Page column 24-25, (2016/11/21)
A compound having a four-coordinate boron atom to which is connected a first C3-C25 substituent, a second C3-C25 substituent and a bridging substituent comprising from eight to forty non-hydrogen atoms and havin
