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Grade 12Organic Chemistry

Does -cf3 group have strong -r/ -m effect? And why?

Profile image of CaPhi
7 Years agoGrade 12
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2 Answers

Profile image of Bhavya
7 Years ago
Dear student
CF3 is a strong -M group because F is the most electronegative element and hence tries to withdraw electron density from benzene ring.
Profile image of CaPhi
7 Years ago
But wouldn't that lead to -i effect because electronegativity causes inductive effect but i am asking resonance effect which is because of electron pair shift