Pentaphs
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Pentaphs | |||||||||||||||
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Molecular formula | C 22 H 14 | |||||||||||||||
Brief description |
greenish-yellow solid (crystallized in platelets) |
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properties | ||||||||||||||||
Molar mass | 278.35 g mol −1 | |||||||||||||||
Physical state |
firmly |
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Melting point |
257 ° C |
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boiling point | ||||||||||||||||
solubility |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Pentaphene (C 22 H 14 ) is a polycyclic aromatic hydrocarbon with five fused benzene rings . The greenish-yellow compound does not dissolve in water or ethanol , but does dissolve well in non-polar organic solvents such as xylene and diethyl ether . Under UV light , penthaphene shows intense blue fluorescence .
The polycycle can be prepared in a six-step synthesis from o -benzoic acid.
Individual evidence
- ↑ a b c d e f David R. Lide: CRC Handbook of Chemistry and Physics . 87th edition, 2006, CRC Press, ISBN 978-0-8493-0487-3 , chap. 3, p. 454
- ↑ Entry on pentaphene in the ChemIDplus database of the United States National Library of Medicine (NLM), accessed on November 28, 2018.
- ↑ a b J. IG Codagan, John Buckingham, F. Macdonald: Dictionary of organic compounds: Volume 5 Mes - Phi. 6th edition, CRC Press, 1996, ISBN 0-412-54090-8 , p. 5125.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ Heinz-Gerhard Franck, Maximilian Zander: A new synthesis of the pentaphene. Chemical Reports , 99 (1965), pp. 396-398. doi : 10.1002 / cber.19660990205 .