200052-70-6

Basic information

• Product Name: 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran
• Synonyms: DCJTB;4-(dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4h-pyran;4-(Dicyanomethylene)-2-T-Butyl-6-(1,1,7,7-Tetramethyljulolidyl-9-Enyl)-4h-Pyran;Propanedinitrile,2-[2-(1,1-dimethylethyl)-6-[2-(2;Propanedinitrile,[2-(1,1-dimethylethyl)-6-[2-(2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H-benzo[ij]quinolizin-9-yl)ethenyl]-4H-pyran-4-ylidene]-;4-(DICYANOMETHYLENE)-2-T-BUTYL-6-(1,1,7,7-TETRAMETHYLJULOLIDYL-9-ENYL)-4H-PYRAN (DCJTB);Propanedinitrile, 2-[2-(1,1-dimethylethyl)-6-[2-(2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H-benzo[ij]quinolizin-9-yl)ethenyl]-4H-pyran-4-ylidene]-;(E)-2-(2-tert-butyl-6-(2-(1,1,7,7-tetramethyl-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-9-yl)vinyl)-4H-pyran-4-ylidene)malononitrile
• CAS NO: 200052-70-6
• Molecular Formula: C30H36N3O
• Molecular Weight: 454.63
• Product Categories: Electronic Chemicals;oled materials
• Mol File: 200052-70-6.mol

Chemical Properties

• Melting Point: 298-303°C (exp.)
• Boiling Point: 561.106 °C at 760 mmHg
• Flash Point: 293.147 °C
• Appearance: /
• Density: 1.143 g/cm³
• PKA: 6.20±0.60(Predicted)
• CAS DataBase Reference: 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran(CAS DataBase Reference)
• NIST Chemistry Reference: 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran(200052-70-6)
• EPA Substance Registry System: 4-(Dicyanomethylene)-2-tert-butyl-6-(1,1,7,7-tetramethyljulolidin-4-yl-vinyl)-4H-pyran(200052-70-6)

Safety Data

• Hazardous Substances Data: 200052-70-6(Hazardous Substances Data)

Usage

Uses

Used in Organic Light Emitting Diodes (OLEDs):
DCJTB is used as a red dopant for white OLEDs, enhancing the performance of these devices. It may be used as an emitting layer to improve the overall efficiency and color quality of the OLEDs.
Used in Solar-concentrator Applications:
DCJTB, due to its laser dye properties, is used in solar-concentrator applications. Its high photoluminescent quantum yields make it a suitable material for improving the efficiency of solar energy conversion systems.
Used in Research and Development:
The photoluminescent properties of DCJTB have been reported in studies, making it a valuable material for research and development in the field of optoelectronics and material science. Its unique properties can be further explored for potential applications in various industries.

Upstream product

• 225378-53-0 2-(2-(tert-butyl)-6-methyl-4H-pyran-4-ylidene)malononitrile 
• 216978-79-9 1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-9-carboxaldehyde 

Relevant articles and documents

An efficient red organic light-emitting diode using DCJTB type emitters based on silicone-containing julolidine derivatives

This paper reports the synthesis and electroluminescent properties of new red fluorescent materials, 4-(dicyanomethylene)-2-(1,1-dimethyl-7- trimethylsiliyl methyl-julolidyl-9-enyl)-6-(4-pentylbicyclo[2.2.2]octan-1-yl)- 4H-pyran (DCJTMS) and 4-(dicyanomethylene)-2-(1,7-bistrimethylsiliylmethyl- julolidyl-9-enyl)-6-(4- pentylbicyclo[2.2.2]octan-1-yl)-4H-pyran (DCJDTMS). In these red emitters, the bulky groups such as trimethylsilane and n-pentyl-bicyclo[2,2,2]octane were introduced into and 4-(dicyanomethylene)-2- methyl-6-[p-(dimethylamino)-styryl]-4Hpyran (DCM) skeleton to increase the steric hindrance between the red emitters and prevent concentration quenching. An OLED device using 4-(dicyanomethylene)-2-(1,7- bis(trimethylsiliylmethyl)- julolidyl-9-enyl)-6-(4-pentylbicyclo[2.2.2]octan-1-yl)-4Hpyran (DCJDTMS) as a dopant exhibited the efficient red emission with a Luminous efficiency, Power efficiency and Commision Internationale De L'Eclairage (CIEx,y) coordinates of 3.66 cd/A, 2.13 lm/W at 20 mA/cm2 and (0.62, 0.38) at 7.0 V, respectively. Compared to device using 4-(dicyanomethylene)-2-(1,1,7,7-tetra- methyljulolidyl- 9-enyl)-6-tert-butyl-4H-pyran (DCJTB), the red device using DCJDTMS showed the greatly improved EL efficiency due to the more bulky substituents of compound DCJDTMS. Copyright Taylor & Francis Group, LLC.

Red fluorescent organic light-emitting diodes (OLEDs) using 4-(1,3-Indanedione-2-yl)-2-(adaman-1-yl)-6-(10-aza-2,3,4,5,6, 7-hexahydronaphtio[1,8-gh]chromen-10(1 H)-one-9-enyl)-4H-pyran

A red fluorescent material 4-(1,3-Indanedione-2-yl)-2-(adaman-1-yl)-6-(10- aza-2,3,4, 5,6,7-hexahydronaphtio[1,8-gh]chromen-10(1H)-one-9-enyl)-4H-pyran is synthesized and characterized. In this material, four methyl groups and adamantly group are introduced into DCJTB skeleton to increase steric hindrance between red emitters in the emitting layer of devices and thus improve the EL efficiencies by preventing concentration quenching. In particular, a device doped with this material in the emitting layer exhibits the luminous and power efficiencies of 3.58 cd/A and 1.61 lm/W at 20mA/cm2, respectively. The CIE coordinates of this device was (0.64, 0.35) at 7.0V. Copyright