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Ch2
C=C(sp hibrid)
tt) (stability)
sp > sp²> sp³
作lewis base (有易拿的兀er)
* resonance
1. real structure is hybrid (stable)
2. differ only in placements of TC / nonbonding e-
3. different forms don't have to be equivalent
some compounds have I↑ atoms with lp e-
but reaction occurs only once
⇒ more stable product is formed
resonation...
intermolecular force (Vann der Waals force)
1. dipole-dipole
2. dispersion force: especially for nonpolar molecules
3. H bond H bonds with lpe on FIOIN
F/O/N
(different stability)
*acidity
-inductive effect:
-polarization (radius):
-resonation:
A: HF> H₂O > NH >> CH4 transmitted through σ bonds
-hibridization: x = sp > sp² > sp³
HI>HF
CH3COOH> C2H5OH
Lewis acid accept e-
can donate
vacant orbital
Lewis base donate e-
^
(
H+ ③Cation ex: AlCl3. BF3. TiCl4. ZnCl2...
transition M
Olpe
C=Canion
some compounds can be both A & B