15538-90-6

Basic information

• Product Name: (2,7-dinitro-9H-fluoren-9-ylidene)malononitrile
• Synonyms: (2,7-dinitro-9H-fluoren-9-ylidene)malononitrile;(2,7-Dinitro-9H-fluorene-9-ylidene)propanedinitrile;2-(2,7-Dinitro-9H-fluoren-9-ylidene)malononitrile;Einecs 239-588-0
• CAS NO: 15538-90-6
• Molecular Formula: C₁₆H₆N₄O₄
• Molecular Weight: 318.24324
• EINECS: 239-588-0
• Mol File: 15538-90-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 546.5°Cat760mmHg
• Flash Point: 284.3°C
• Appearance: /
• Density: 1.585g/cm³
• Vapor Pressure: 5.34E-12mmHg at 25°C
• Refractive Index: 1.731
• CAS DataBase Reference: (2,7-dinitro-9H-fluoren-9-ylidene)malononitrile(CAS DataBase Reference)
• NIST Chemistry Reference: (2,7-dinitro-9H-fluoren-9-ylidene)malononitrile(15538-90-6)
• EPA Substance Registry System: (2,7-dinitro-9H-fluoren-9-ylidene)malononitrile(15538-90-6)

Safety Data

• Hazardous Substances Data: 15538-90-6(Hazardous Substances Data)

Usage

General Description

"(2,7-dinitro-9H-fluoren-9-ylidene)malononitrile" is a chemical compound that is also known by the abbreviation "DNFM". It is a bright yellow crystalline solid that is commonly used as a fluorescent dye in various applications, especially in the field of organic chemistry. DNFM is also known for its luminescent properties and has been studied for its potential applications in optoelectronic devices and as a fluorescent probe for detecting metal ions. Additionally, the compound is known to be highly stable and has a long shelf life, making it a desirable chemical for use in various research and industrial settings. However, it is important to handle DNFM with caution, as it is considered to be a hazardous chemical and should be used and stored in accordance with proper safety protocols.

InChI:InChI=1/C16H6N4O4/c17-7-9(8-18)16-14-5-10(19(21)22)1-3-12(14)13-4-2-11(20(23)24)6-15(13)16/h1-6H

Upstream product

• 31551-45-8 2,7-dinitro-9-fluorenone 
• 109-77-3 malononitrile 

Relevant articles and documents

Crystal growth and characterization of solvated organic charge-transfer complexes built on TTF and 9-dicyanomethylenefluorene derivatives

A series of 1 : 1 organic complexes have been synthesized by reaction between TTF (tetrathiafulvalene) and three 9-dicyanomethylenefluorene derivatives: 9-dicyanomethylene-2,7-dinitrofluorene (DDF), 9-dicyanomethylene-2,4,7-trinitrofluorene (DTF) and 9-dicyanomethylene-4,5,7-trinitrofluorene-2-carboxylic acid (DC2TF). The following formulas were determined by X-ray diffraction and elemental analysis for these complexes: (TTF-DDF)·CH3CN (1), (TTF-DDF)·0.5PhCl (2), (TTF-DTF)·CH3CN (3), (TTF-DTF)·0.5Me2CO (4) and (TTF-DC2TF)·H2O (5). A sixth solvated compound was also obtained, with a different stoichiometry, (TTF)3(DC2TF)2·2CH3CN (6). The degree of charge transfer in 1-5 was estimated by IR and Raman spectroscopy. The lattice solvent, acetonitrile, chlorobenzene, or acetone is slowly released from the crystals of complexes 1-4, inducing a significant decrease in charge transfer over time. These crystals converge over months towards materials close to the neutral state. Hydrate 5 is air-stable, and displays a degree of charge transfer, δ = 0.48 e-, close to the range of semiconducting or metal-organic complexes. Finally, compound 6 is an ionic crystal, and is thus expected to be an insulating material.