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alternant

A conjugated system of π-electrons is termed alternant if its atoms can be divided into two sets so that no atom of one set is directly linked to any other atom of the same set.
A00249-1
A00249-2
Source:
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1082
InChI=1/C10H8/c1-2-5-9-7-4-8-10(9)6-3-1/h1-8H
InChI=1/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
CUFNKYGDVFVPHO-UHFFFAOYAT
PPBRXRYQALVLMV-UHFFFAOYAB
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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.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.A00249.
Original PDF version: http://www.iupac.org/goldbook/A00249.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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