Does phenanthrene dissolve in water?
Phenanthrene is nearly insoluble in water but is soluble in most low polarity organic solvents such as toluene, carbon tetrachloride, ether, chloroform, acetic acid and benzene.
Does phenanthrene show blue fluorescence?
Phenanthrene appears as a white powder having blue fluorescence.
What is an excitation fluorescence spectrum?
A fluorescence excitation spectrum is when the emission wavelength is fixed and the excitation monochromator wavelength is scanned. In this way, the spectrum gives information about the wavelengths at which a sample will absorb so as to emit at the single emission wavelength chosen for observation.
What is the structure of phenanthrene?
C14H10
Phenanthrene/Formula
What are the properties of phenanthrene?
The phenanthrene is a colorless crystal with luster, and the phenanthrene precipitated from ethanol is a colorless monoclinic crystal. The phenanthrene is a leaf-like crystal with a relative density of 1.179 (25/4 ℃) and a refractive index of 1.6450, melting point of 101 °C and boiling point of 340 °C.
What is the use of phenanthrene?
Like most PAHs, phenanthrene is used to make dyes, plastics and pesticides, explosives and drugs. It has also been used to make bile acids, cholesterol and steroids.
Which position are very reactive in phenanthrene?
1 position
Orientation in the substitution of naphthalene can be complex, although the 1 position is the most reactive.
What are the chemical properties of phenanthrene?
What is the difference between fluorescence excitation spectrum and a fluorescence emission spectrum?
An emission spectrum describes the wavelengths of the spectrum emitted by an energetic object. The excitation spectrum is a range of light wavelengths that add energy to a fluorochrome, causing it to emit wavelengths of light, the emission spectrum2.
What is the density of phenanthrene?
1.18 g/cm³
Phenanthrene/Density
What is Stokes shift in context of fluorescence spectrum?
In fluorescence spectroscopy, the Stokes shift is the difference between the spectral position of the maximum of the first absorption band and the maximum of the fluorescence emission and can be expressed in either wavelength or wavenumber units as shown in Figure 2.
What kind of fluorescence does phenanthrene have?
Benzene, naphthalene and phenanthrene are abundant aromatic hydrocarbons in petroleum, and these were characterized by fluorescence at 250–300 nm, 300–365 nm, 366 nm, and 385 nm, respectively ( Xia, 1992 ).
How is phenanthrene a colorless monoclinic crystal?
Phenanthrene appears as colorless monoclinic crystals with a faint aromatic odor. Solutions exhibit a blue fluorescence. (NTP, 1992) Phenanthrene is a polycyclic aromatic hydrocarbon composed of three fused benzene rings which takes its name from the two terms ‘phenyl’ and ‘ anthracene .’
What is the quantum yield of phenanthrene in sunlight?
Phenanthrene absorbs strongly at wavelengths >290 nm (1), has a quantum yield of 0.01 in the environmental spectra (2) and, therefore, is expected to be susceptible to direct photolysis by sunlight (SRC). Adsorption of phenanthrene to fly ash is rapid and irreversible at concentrations of <30 ug/g fly ash (3).
How much is the molecular weight of phenanthrene?
Phenanthrene PubChem CID 995 Synonyms PHENANTHRENE 85-01-8 Phenanthren Phenant Molecular Weight 178.23 g/mol Date s Modify 2021-05-08 Create 2004-09-16