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349666-24-6

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349666-24-6 Usage

General Description

1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(1-pyrenyl)- is a chemical compound often used in analytical and organic chemistry. Although little is known about its exact properties and effects, its chemical structure suggests that it contains multiple carbon and hydrogen atoms, a pyrenyl group, and a dioxaborolane group, made up of boron, oxygen, and more carbon and hydrogen. This chemical compound plays a significant role in various chemical reactions thanks to these functional groups. Its exact uses may vary depending on the specific context and purpose of the experiment or reaction it is involved in. It is also known by the CAS Number 1252444-07-5.

Check Digit Verification of cas no

The CAS Registry Mumber 349666-24-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,6,6 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 349666-24:
(8*3)+(7*4)+(6*9)+(5*6)+(4*6)+(3*6)+(2*2)+(1*4)=186
186 % 10 = 6
So 349666-24-6 is a valid CAS Registry Number.
InChI:InChI=1/C22H21BO2/c1-21(2)22(3,4)25-23(24-21)18-13-11-16-9-8-14-6-5-7-15-10-12-17(18)20(16)19(14)15/h5-13H,1-4H3

349666-24-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4,5,5-tetramethyl-2-pyren-1-yl-1,3,2-dioxaborolane

1.2 Other means of identification

Product number -
Other names 4,4,5,5-tetramethyl-2-(pyren-6-yl)-1,3,2-dioxaborolane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:349666-24-6 SDS

349666-24-6Relevant articles and documents

High-efficiency blue OLEDs based on dendritic dinuclear iridium (III) complexes grafted with fluorene core and blue fluorescence chromospheres

Liu, Yu,Hao, Zhaoran,Jiang, Haigang,Liu, Yajun,Wang, Yafei,Tan, Hua,Xie, Guohua

, p. 425 - 432 (2018)

Two novel dendrimer-like blue-emitting dinuclear cyclometalated iridium (III) complexes, namely (DNaTPA)2DBF(FIrpic)2 and (DPyTPA)2DBF(FIrpic)2, have been successfully synthesized and characterized. In which FIrpic is an iridium (III) bis[(4,6-difluorophenyl)pyridinato-N,C2′]picolate blue-emitting phosphorescent chromophore core, DBF is a 2,7-diphenyl-9H-fluorene bridging core, DNaTPA and DPyTPA are deep blue-emitting fluorescent chromophores composed by rigid high-triplet-energy dendrons of triphenylamine-functionalized naphthalene or pyrene units, and the peripheral dendrons are connected with the ancillary ligand of the emitting core through nonconjugated ether linkage. Their photophysical, thermal, electrochemical, as well as electrophosphorescent properties were primarily studied. Both iridium (III) complexes exhibit high efficient blue emission in solution (38.5% and 19.2%) and a typical FIrpic emission in 1,3-bis(N-carbzolyl)benzene (mCP) matrix (27.0% and 24.1%). Simple bilayer phosphorescent organic light-emitting diodes (PHOLEDs) with a configuration of ITO/PEDOT:PSS/mCP:dopants/TmPyPB/Liq/Al achieved high efficiencies of 12.96 cd/A for current efficiency (CE), 6162 cd/m2 for brightness, 6.22% for external quantum efficiency (EQE), and 3.13 lm/W for power efficiency (PE) with Commission International de L'Eclairage (CIE) coordinates of (0.19 ± 0.01, 0.35 ± 0.02) at only 2 wt% blend of (DNaTPA)2DBF(FIrpic)2. (DPyTPA)2DBF(FIrpic)2-doped devices also reach efficiencies of (9.14 cd/A, 7167 cd/m2, 4.41%, 2.61 lm/W) at the same doping concentration. The results demonstrate that the introduction of dendritic blue-emitting fluorescent chromophore grafted into the blue phosphorescent chromosphere core through nonconjugated linkage is an efficient way to achieve high-efficiency sky-blue emission.

Pyrene-Capped Conjugated Amorphous Starbursts: Synthesis, Characterization, and Stable Lasing Properties in Ambient Atmosphere

Xu, Weidong,Yi, Jianpeng,Lai, Wen-Yong,Zhao, Li,Zhang, Qi,Hu, Wenbo,Zhang, Xin-Wen,Jiang, Yi,Liu, Ling,Huang, Wei

, p. 4617 - 4625 (2015)

A family of trigonal starburst conjugated molecules (TrFPy, TrFPy, and TrF2Py) composed of a truxene core and pyrene cappers with various bridge lengths is synthesized and characterized. The incorporation of pyrene cappers successfully depress the crystallization tendency, resulting in enhanced glassy temperature and improved morphological stability of the thin films. The high photoluminescence yield in neat films and excellent thermal stability render these pyrene-capped starbursts promising lasing optical gain media. Low amplified spontaneous emission (ASE) thresholds (EthASE) of 180 nJ pulse-1 and 101 nJ pulse-1 were recorded for TrFPy and TrF2Py, respectively. One dimensional distributed feedback (1D DFB) lasers demonstrated lasing threshold of 9.3 kW/cm2 and 7.3 kW/cm2 for TrFPy (at 457 nm) and TrF2Py lasers (at 451 nm), respectively. The ASE performance of TrFPy and TrF2Py in an ambient condition was recorded with various annealing temperature (from 80 to 250 °C, 10 min). Surprisingly, TrFPy exhibited excellent ASE stability in an ambient condition, which is still detectable even after annealing at 250 °C for 10 min. The results suggest the pyrene-capped molecular design strategy is positive on improving the optical gain stability and meanwhile maintaining excellent lasing properties. Well-defined starburst conjugated macromolecules with pyrene moieties as end-capped groups are explored as the optical gain media for organic semiconductor lasers. The length of oligofluorene bridges between the truxene core and pyrene cappers is carefully tuned. The relationships between their morphology, thermal stability, and amplified spontaneous emission stability in an ambient condition are systematically investigated, suggesting that the pyrene-capped molecular design improves the optical gain stability.

Synergistic Effect of Tetraaryl Porphyrins Containing Corannulene and Other Polycyclic Aromatic Fragments as Hosts for Fullerenes. Impact of C60 in a Statistically Distributed Mixture of Atropisomers

álvarez, Celedonio M.,Barbero, Héctor,Ferrero, Sergio,Miguel, Daniel

, p. 6081 - 6086 (2016)

Symmetric meso-tetraarylporphyrins bearing phenanthrene, pyrene, and corannulene moieties in meta positions have been synthesized in a straightforward procedure under microwave irradiation by quadruple Suzuki-Miyaura reactions. Their 1H NMR spectra showed the typical pattern of four atropisomers distributed according to their statistical ratio not properly separable due to their fast isomerization. Their ability to bind buckminsterfullerene has been tested with the whole mixture, and different behaviors have been found, α4 isomer corannulene-substituted porphyrins being the best hosts in the family.

Construction of Magneto-Fluorescent Bifunctional Spin-Crossover Fe(II) Complex from Pyrene-Decorated Pybox Ligand

Luo, Bing-Xue,Pan, Yao,Meng, Yin-Shan,Liu, Qiang,Yin, Jun,Liu, Tao,Zhu, Yuan-Yuan

, p. 3992 - 3999 (2021/08/24)

The construction of magneto-fluorescent bifunctional complexes is a feasible approach toward multifunctional molecular materials. Herein we report the synthesis and properties studies of a mononuclear Fe(II) complex [FeL2](ClO4) (1), where L is a pyridine-2,6-bis(oxazoline) (pybox) ligand decorated by the pyrene fluorophore. Magnetic susceptibility measurement of desolvated complex 1-d shows an incomplete and gradual spin-crossover in the temperature range 50–300 K, which is further confirmed via 57Fe M?ssbauer spectroscopy study. Light-induced excited spin state trapping (LIESST) is also observed below 70 K when the powder sample is irradiated by a 532 nm laser. The change in absorption during the spin-crossover (SCO) process is investigated via the temperature-dependent UV-vis spectroscopy. As expected, through introducing the chromophore, 1 displays fluorescence in both solution and solid state, achieving the coexistence of spin-crossover and fluorescence in one compound.

Thermally activated delayed fluorescent material and preparation method thereof

-

, (2021/07/31)

The invention relates to the technical field of electroluminescence, in particular to a thermally activated delayed fluorescent material and a preparation method thereof. The invention provides a thermally activated delayed fluorescent material. The structural formula of the thermally activated delayed fluorescent material is shown as a formula (I). The invention also provides a preparation method of the thermally activated delayed fluorescent material, and the preparation method comprises the following step: carrying out substitution reaction on 2-bromo-7-(pyran-1-yl) anthracene-9, 10-diketone and the compound shown in the formula (II) to prepare the compound shown in the formula (I). The invention provides the thermally activated delayed fluorescent material and the preparation method thereof, and solves the technical problems that the existing red TADF material is relatively difficult to synthesize and the device efficiency is not high.

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