F number (chemistry)
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From a PAH it can be calculated using the formula: F = B2 + C12 - R / 2,
where B2 is the number of double bonds C12 is the number of primary and secondary carbons R is the number of non-aromatic rings.
For fluorene, the F number is: F = 6 + 1 - 0.5 = 6.5.
- J.F.Schabron, R.J.Hurtubise and H.F.Silver, Anal. Chem., 49, 2253 (1977)
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