Polycyclic compounds in which one ring contains two, and only two, atoms in common with each of two or more rings of a contiguous series of rings. Such compounds have
n common faces and less than 2
n common atoms. Examples:
Source:
InChI=1/C19H12/c1-3-12-7-9-14-10-8-13-4-2-6-16-11-15(5-1)17(12)19(14)18(13)16/h1-3,5-11H,4H2
LFBJZFWBDRYIIY-UHFFFAOYAG
InChI=1/C16H10/c1-3-11-7-9-13-5-2-6-14-10-8-12(4-1)15(11)16(13)14/h1-10H
BBEAQIROQSPTKN-UHFFFAOYAB
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
doi:10.1351/goldbook.