6829-22-7

Usage

Flammability and Explosibility

Nonflammable

InChI:InChI=1/C22H12N2O/c25-22-16-10-2-6-13-5-1-9-15(19(13)16)21-23-17-11-3-7-14-8-4-12-18(20(14)17)24(21)22/h1-12H

Upstream product

• 81-84-5 1,8-Naphthalic anhydride 
• 479-27-6 naphthalene-1,8-diamine 
• 518-05-8 Naphthalene-1,8-dicarboxylic acid 
• 108-95-2 phenol 
• 81-30-1 1,4,5,8-naphthalenetetracarboxylic dianhydride 

Relevant academic research and scientific papers

Highly selective colorimetric fluorescence sensor for Cu2+: Cation-induced 'switching on' of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

A 1,8-naphthalimide-based colorimetric fluorescence perinone dye, receptor 1 is reported herein for the selective detection of Cu2+ over the other heavy and transition metal ions. Receptor 1 shows a strong colorimetric change from orange to purple and a dramatic enhancement of fluorescence intensity due to cation-induced excited state internal charge transfer during the sensing event, that is, a dual optical response that would facilitate naked-eye detection of Cu2+.

Method for synthesizing solvent red 179 with low pollution

The invention provides a method for synthesizing solvent red 179 with low pollution. The preparation method comprises the following steps: heating to 40-60 DEG C, sequentially adding 1, 8-diaminonaphthalene, 1, 8-naphthalene anhydride and an SA catalyst into NMP, uniformly stirring, continuously heating to 110-125 DEG C, and reacting for 5-10 hours; cooling to 60-75 DEG C, stirring for 1-3 hours,cooling to 20-35 DEG C, and carrying out suction filtration to obtain a filter cake and filtrate; washing and soaking the filter cake with hot water, collecting washing and soaking liquid and filtrate, and distilling and recycling; and washing the filter cake with hot water until the filter cake is neutral, and drying to obtain the solvent red 179 dye. The deltaE the solvent red 179 dye prepared by the preparation method disclosed by the invention is less than 1.0, the deltaC is greater than 0.5, the pressure value is less than 0.3, and the product quality can meet the application requirementsof high-end customers.

Understanding the influence of geometric and electronic structure on the excited state dynamical and photoredox properties of perinone chromophores

In this work, a series of eight similarly structured perinone chromophores were synthesized and photophysically characterized to elucidate the electronic and structural tunability of their excited state properties, including excited state redox potentials and fluorescence lifetimes/quantum yields. Despite their similar structure, these chromophores exhibited a broad range of visible absorption properties, quantum yields, and excited state lifetimes. In conjunction with static and time-resolved spectroscopies from the ultrafast to nanosecond time regimes, time-dependent computational modeling was used to correlate this behavior to the relationship between non-radiative decay and the energy-gap law. Additionally, the ground and excited state redox potentials were calculated and found to be tunable over a range of 1 V depending on the diamine or anhydride used in their synthesis (Ered* = 0.45-1.55 V;Eox* = ?0.88 to ?1.67 V), which is difficult to achieve with typical photoredox-active transition metal complexes. These diverse chromophores can be easily prepared, and with their range of photophysical tunability, will be valuable for future use in photofunctional applications.

High-performance black color paste and preparation method thereof

The invention relates to the technical field of black pigments, in particular to a high-performance black color paste and a preparation method thereof. The preparation process does not need to be subjected to grinding treatment, can be highly dispersed in the low-melting-point amphiphilic solid, can effectively improve the workability and repeatability, and reduces the chromatic aberration 10% - 1000%. The preparation method disclosed by the invention causes the components to react and discolor in the kneading machine, finally obtains the black color paste, and is simple in preparation step, easy and convenient to operate, easy to prepare and good in application prospect.

Green synthesis of polycyclic benzimidazole derivatives and organic semiconductors

Polycyclic benzimidazole derivatives, an important class of compounds in organic electronics and photovoltaics, were prepared using a solvent-free "green" process based on heating carboxylic acid anhydrides and arylene diamines in the presence of zinc acetate in the solid state. Products were isolated and purified directly by train sublimation of the crude reaction mixtures. The reaction conditions were optimized using various carboxylic acid anhydrides. Optical and electrochemical properties of these materials are also described.

Phthaloperinone dyestuffs

Phthaloperinone dyestuffs of the general formula (I) STR1 wherein Z denotes SO2 or CO, A represents optionally substituted alkyl or aryl, and the other substituents have the meanings given in the description, are prepared by condensation of corresponding phthalic acids or functional derivatives thereof and optionally substituted 1,8-naphthalene-diamines. The dyestuffs according to the invention have very good fastnesses and are employed in processes for bulk dyeing plastics.