pyrenicadj.
/pʌɪˈriːnɪk/, /pʌɪˈrɛnɪk/, U.S. /paɪˈrɛnɪk/, /paɪˈrinɪk/ Chemistry.
Relating to or derived from the hydrocarbon pyrene; having the tetracyclic structure of pyrene.Recorded earliest in pyrenic acid n. at Compounds.
ΚΠ
1886 Jrnl. Chem. Soc. 50 718 The authors find that this substance is the anhydride of pyrenic acid.
1989 Chem. Physics Lett. 156 597/2 We have also studied systems of coronoids..having one or more pyrenic (four-hexagon) holes instead of the naphthalenic (two-hexagon) holes encountered in all the cases treated above.
2006 Appl. Catalysis A. 304 147/2 Pyrenic compounds (CnH2n−22) were formed via successive reactions of olefins.
Compounds
pyrenic acid n. a pale yellow, crystalline carboxylic acid first made by oxidizing pyrene.Pyrenic acid has a tricyclic structure. Formula: C16H8O5.
ΚΠ
1886*Pyrenic acid [see main sense].
1936 Proc. Royal Soc. B. 121 137 Negative results were obtained when pyrenic acid, an oxidation product of pyrene,..was injected..into five rats.
1989 Environmental Sci. Technol. 23 803/2 The main product of the ozone or ozone + light reaction was a pyrenic acid and/or its anyhydride.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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adj.1886