Crput Cheristy
S o m e B a s i e P h i n c i b l e s T e c h n i q u e s
which deals with.
Branch of chemsiny
Carbon, tydrogen,
mcunly containlng
and Phosphona.
Chains or
Catenaticn: Abilihy e
Carbon to dorml n g
to anothen carbon atom. Ethane, Senzehe
by atatching
it was thouq ht, that organic comþunca
Ih Shudg o7 chemistn animals, ahd iheganic omhsnds
Lar fommed irom þlants ond
firom mineo and oc
In 1828 Wohler syhtbesised the ogaic
comþaund AmnoNIUM CYANIDE
ompsund UREA drom inoganic
as sholwn below:
NH, CNO NH, CON H
ihoranic
H mecns arqanic Comhsund can be deiued Jrom
compouncd. Kolbe also Syntheside CH;COOH (E thanoie Acid)
and CHa from ihoreanic Combound.
Shape Organie Combsunda
Alkanes CH Cty-CHg
ALkenes CHz =CH¡
ALRynea CH =H
CH CHa 109 -5° Tetrahedrgl
1 20*
Inigonal Plahar
CHE Cn
180 Linoar
C-c 1:54 A
1-34 A°
1-24 A
, Pa3 N
Data q 10 25
Gie the eason Lahy carbon = Carbonis Shorter and stronge
More is the s-character, more is electronegatiuty
carbon. In case af Eth¡ne, thene's sp hy briclisatien, so
rnore is the scha racter (s02.) th n qreater is the
electroneqaiuty f that Carbon Due to this tible bond
an othan.
is Shorier and Stonger as comhaned fu e fheNe
C-c C=C
(1-s4A) (1-34A) (1-24 A)
morematue ?
why comhcuncl containin mulhiple bonsl is
Sidemaus Lateral ouerlabing orbitals ane known as
T bancls, and theris auys elecren ChaKe ckauc
atom cee to
aboe ahd belsw the plane a banain
this electrohs ane easily auailable to the atecainA
Hengents, bon el brouicde mat ngGetie centn
bonds
in tne molecule dantaing mulhple
Probdem 2.4
H
H-Cac-(=(eC-H Me=e 2
H
Stuctua! Representaho Orgonic Comhaunds
1 Comblete Metha) 2. Condensed Methacl 3. nd Line
H-C-
H CH= CH
, Dates|2s
Bond Line Formmule
omula any lines are uaed to
lh Bond Line, stnuctural
the oganic combeund The temiba s the
rehresent as &hown below:
Tine denote methyl groups
1 3-Methy ctane H
H H
6
C- H Comyiete
CHs
CondenseJ
CHg- CH,-CH -CH -CH -CH, -CH, -CH
cH3
[Bonc) Lne
CH
2. 2- Bromo Butano
H
IConjete
Br H
CHa- CH -Ctz -CH [C¡nden se]
Br
8r
(Bonot lie
Br