Illustrated Glossary of Organic Chemistry
δ
+
:
A symbol which indicates that an atom or region with a deficiency of
electron density
, often because of
resonance
delocalization
,
electronegativity
differences, or
inductive effects
.
EN
C (2.5) <
EN
Cl (3.0)
ΔEN
= 3.0 - 2.5 = 0.5
Therefore the carbon-chlorine
bond
of chloro
methane
is a
polar covalent bond
.
Related terms:
δ
-
,
δ
,
polar covalent bond
,
bond dipole
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