Refractive index database

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Optical constants of C7F5N (Pentafluorobenzonitrile)
Chang et al. 2024: n 0.4–2.0 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula [ i ]


Conditions & Spec sheet

n_is_absolute: false
wavelength_is_vacuum: false
temperature: 295


21.5–22.0 °C.


H.-J. Chang, N. Munera, C. Lopez-Zelaya, D. Banerjee, G. Beadie, E. W. Van Stryland, D. J. Hagan. Refractive index measurements of liquids from 0.5 to 2 µm using Rayleigh interferometry, Opt. Mater. Express 14, 1253–1267 (2024)


[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]


Pentafluorobenzonitrile, C7F5N

Pentafluorobenzonitrile (C6F5CN) is a specialized chemical compound characterized by a benzene ring where five hydrogen atoms are replaced by fluorine atoms, with a nitrile group (-CN) attached. It appears as a colorless, crystalline solid with a distinctive, sharp odor. This compound is primarily used in the synthesis of various pharmaceuticals, agrochemicals, and materials due to its unique reactivity and the ability to introduce fluorine into other molecules. Pentafluorobenzonitrile is also valued for its applications in liquid crystal and fluoropolymer production. Optically, the strong electron-withdrawing effects of the fluorine atoms and the nitrile group can impart useful refractive properties to materials incorporating this compound. Handling pentafluorobenzonitrile requires precautions due to its potential toxicity and environmental impact.

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