19029-32-4

Basic information

• Product Name: 5,12-dihydrobenzo[b]phenazine
• CAS NO: 19029-32-4
• Molecular Formula: C₁₆H₁₂N₂
• Molecular Weight: 232.2799
• Mol File: 19029-32-4.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 457.1°C at 760 mmHg
• Flash Point: 311.4°C
• Density: 1.208g/cm³
• Vapor Pressure: 1.54E-08mmHg at 25°C
• Refractive Index: 1.692
• CAS DataBase Reference: 5,12-dihydrobenzo[b]phenazine(CAS DataBase Reference)
• NIST Chemistry Reference: 5,12-dihydrobenzo[b]phenazine(19029-32-4)
• EPA Substance Registry System: 5,12-dihydrobenzo[b]phenazine(19029-32-4)

Safety Data

• Hazardous Substances Data: 19029-32-4(Hazardous Substances Data)

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Downstream Products

• 257-97-6 benzo[b]phenazine 

Relevant articles and documents

Wavelength selective photoactivated autocatalytic oxidation of 5,12-dihydrobenzo[: B] phenazine and its application in metal-free synthesis

Photochemical stability of 5,12-dihydrobenzo[b]phenazine (DHBP) was investigated with LEDs with central emission wavelengths in a range of 365 to 595 nm. Photochemical conversion of DHBP to benzo[b]phenazine (BP) was observed with wavelengths upto 516 nm. Light of 490 and 516 nm is not absorbed by DHBP, but photoactivated autocatalytic oxidation of DHBP to BP with these wavelengths was confirmed. The reaction rate is in a range of 111-208 μg min-1 with these LEDs. The mechanism of the reaction was examined and the experimental results exclude the intermolecular interaction such as the F?rster resonance energy transfer, the intermolecular charge transfer, the photoinduced electron transfer and the formation of an exciplex. The formation of the reactive oxygen species was verified with electron paramagnetic resonance, which indicates its potential in the synthesis. When sunlight was used as the light source, the oxidation rate of 1 mg mL-1 DHBP was 393 μg min-1. Same autocatalytic oxidation was also observed on similar compounds and it can be used for producing metal-free organic substances for semiconductors.

Triplet Dynamic Nuclear Polarization of Guest Molecules through Induced Fit in a Flexible Metal–Organic Framework**

Dynamic nuclear polarization utilizing photoexcited triplet electrons (triplet-DNP) has great potential for room-temperature hyperpolarization of nuclear spins. However, the polarization transfer to molecules of interest remains a challenge due to the fast spin relaxation and weak interaction with target molecules at room temperature in conventional host materials. Here, we demonstrate the first example of DNP of guest molecules in a porous material at around room temperature by utilizing the induced-fit-type structural transformation of a crystalline yet flexible metal–organic framework (MOF). In contrast to the usual hosts, 1H spin-lattice relaxation time becomes longer by accommodating a pharmaceutical model target 5-fluorouracil as the flexible MOF changes its structure upon guest accommodation to maximize the host–guest interactions. Combined with triplet-DNP and cross-polarization (CP), this system realizes an enhanced 19F NMR signal of guest target molecules.

LIGHT-EMITTING MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, ORGANIC ELECTROLUMINESCENT DEVICE USING SAME, AND MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE

In the present invention, disclosed are a novel aromatic compound with outstanding light-emitting efficiency and heat stability, a manufacturing method thereof and an organic electronic device including the novel aromatic compound. For this, in the present invention, provided are a ring-formed aromatic compound and a novel aromatic amine derivative denoted by chemical formula 1 for improving performance of the device.COPYRIGHT KIPO 2015