191-46-8

Basic information

• Product Name: Dibenzo[a,rst]naphtho[8,1,2-cde]pentaphene
• Synonyms: Dibenzo[a,rst]naphtho[8,1,2-cde]pentaphene;Violanthrene B
• CAS NO: 191-46-8
• Molecular Formula: C34H18
• Molecular Weight: 426.51
• Mol File: 191-46-8.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• Density: 1.408g/cm³
• Refractive Index: 2.029
• CAS DataBase Reference: Dibenzo[a,rst]naphtho[8,1,2-cde]pentaphene(CAS DataBase Reference)
• NIST Chemistry Reference: Dibenzo[a,rst]naphtho[8,1,2-cde]pentaphene(191-46-8)
• EPA Substance Registry System: Dibenzo[a,rst]naphtho[8,1,2-cde]pentaphene(191-46-8)

Safety Data

• Hazardous Substances Data: 191-46-8(Hazardous Substances Data)

Usage

InChI:InChI=1/C34H18/c1-2-8-22-20(6-1)18-21-13-15-27-28-14-12-19-7-5-11-24-23-9-3-4-10-25(23)33(34(28)30(19)24)29-17-16-26(22)31(21)32(27)29/h1-18H

Upstream product

• 54582-42-2 3-Chlor-1,2:11,12-Dibenzoperopyren 
• 81-96-9 3-bromobenzanthrone 
• 82-05-3 7H-benz[d,e]anthracene-7-one 
• 90116-74-8 Isoviolanthron-B 

Relevant articles and documents

Synthesis and Physical Properties of Azapolycyclic Hydrocarbons. Part 1. Preparation of 1-Azabenzanthrone and its Condensation Products and their Structural Determination

Preparation of 1-azabenzanthrone (27) was carried out by making use of a German Patent reaction.An improved procedure gave (27) easily and rapidly.Compound (27) underwent self-condensation via a zinc-catalysed method or an alkali-fusion procedure.The zinc-catalysed condensation product was separated into four isomers; 3,12-diazatetrabenzoperylene (7), 3,15-diazabenzophenanthropentaphene (4), 5,17-diazadibenzonaphthopentaphene (3), and 5,10-diazabenzophenalenopentaphene (6).The major component was (3).The reduced product after alkali-fusion condensation of (27) was separated into four isomers; (7), (3), (6), and 5,14-diazadinaphthoperylene (2).The major component was (2).The structures of the isomers were assigned from their oxidation products, m.p., u.v.-visible, i.r., and mass spectra.According to our assignments, (6) and possibly 5,14-diazatetrabenzoperylene (10) are new structural isomers of fused nanocyclic compounds whose parent aromatic hydrocarbons have not been prepared, though (10) has not actually been isolated.

a, cd, j, lm.

The rate of crystallization from the amorphous state of Tetrabenzo left bracket a, cd, j, lm right bracket perylene(TBP) film under various temperature conditions was examined as a function of the purity of the specimen. On the basis of the absorption and fluorescence spectra of TBP film, the rate of crystallization of TBP film evaporated at room temperature was found to be decreased with increasing impurity of the specimen.