197718476 UV Vis Spektroskopija

5/24/2018 197718476 UV Vis Spektroskopija

1/31

3. LALJBI3. LALJBIAA IDLJIAAA IDLJIAEKKIJA (EKKIJA ())


2/31

2

P:

S a a aaa a

Baa a ac a aa a , aaa (a) a a aba

aa a a

Ea a aaa a (/) c (/H)

S (b) a aba (UV), (V) a ac a aa


3/31

3

()

UV (b) a: 200400 , V a: 400800

UV/V a a a 200800


4/31

4

UV/V a (E = ) ba

Ra 3 a a: ,

a aa a ba

a UVaa a a a aba

UV a

a a a, a aa a

( aa) a a a a a

aa (, , a)

A / A /


5/31

5

*

*

*

*

*

*

Pa a b a:

*

, *

, *

*

Ea ba a a a :

* > * > * > *

()

()

()

* ()

* ()

E


6/31

6

* aa aa aaa

a a a , .U UVa a ab c.

*aa aa a a b aa, a

a ca.Pba a a, a a UV/V aa (


7/31

7

a baa a aa

K :a , (a aa ), aa baa

Za UV/V aba a:

1. a aa * a a(: , ac, a a...)

2. a , a * *a a (a a a aa a a)


8/31

8

:

EA

EA

EA

EA

0 a

3 ac0 aca

1 2 ac1 a aca

2 a1 a aca2 ac

3 a0 aca3 ac

2 aa a a baa (H)

3 aa a a baa (L)


9/31

9

Paa UV/V aa ba a

aa H L

E

*


10/31

10

aa a ()

a

baca

= 21 000


11/31

11

A ()

P a aa:


12/31

12

D a abaa UV/V a aa KF

Aca aa aa LB :

A = (I /I) =

A = abaca

= a ac c(ca a a; L c1 1)

c = caca /L

= a / c

I= a a

I = a a aa a

Ua aba a aa a a (I)a a a a (I) I/I 1.

Kaa I/I= 1, A = 0 EA ACIJE


13/31

13

() a a ( a

a abaa a ).Za a (> 10 000 a aaa a * aa aa) ba aa (: 105 / L) b (c = 102 / L a 10100)

UV/V a a abac a (A) a ()

[aa a () T = I/ I ]

aa a a :

1. aa a() a abac 2. a ac ca a abac

V aa ab: =

A

.


14/31

14

Va a, a a a

b aba aa (P = 01)

= 0,87 1020 P a. . P = a aaa = a (c2)

Fa a a aa a .N: * a a * aa, 1000 a. Ra ba aa b

a * ba, a a aa aa. S, *aa ba aa aa, a a aa b1.


15/31

15

Ea

a

a

E E

H, L , , . .


16/31

16

abaca

= 20 000

1,3

= 217 = 217

S a a a a ac aa( a a a a ac a b a ba)


17/31

17

UVa a a a aa aaa a a a ac a 30 (a ). I a a a a .

Ka aa aa . BATOKROMNIPOMAK.


18/31

18

1. BAKI AK a (c a aa)

aa aa KONJUGIRANOSTI

2. HIKI AK a (a aaa)

3. HIEKI AK (a a)

4. HIKI AK a (a a)


19/31

19

UVa , a a

ba a ( b b). Tac aaa ab aca a c a( 470 ).

Ba a a a a ac aa b180 ( > 65 000), ab ac a 200 ( > 8 000) ab aca a 254 ( = 240).


20/31

20

I ac aa 10 10 000, a a

*, * (b c aa a * aba)

UVa a a * ac a 242 , a = 18 000 ab * ac b300 = 100.Za * a ba aa E a * .


21/31

21

aa

200360

205255

> * > *

b

CX X=BX=I

aa

175,000

275200

> * > *

aN=O

aa

1510,000

290180

> * > *

aaC=O

a10,000180 > *1CC

a15,000171 > *C=C

,

K


22/31

22

F F

V a a a a aaa a

Oa aa a ac ac

aa

KFAKK

A a b , a aa aa a a (: aa, a, a aa, a)


23/31

23

Tabca: WaFa aa a a : aa

Ga Kca a ()

Sa aa C=C + 30

Aa a + 5

A (OR) a 0

Eca a + 5

2,41,3

1,3

KF = 217

: 217 3 a : 15

aa a: 232 ;a: 232

RAUN:


24/31

24

B B

Oa aba a UV aaa (200400 ) BEZBOJNI

P ba aa a

a(ba)

c( aaa)

a( )


25/31

25

Pa ba a a aa BATOKROMNI EFEKT, a

a aba V .

IDLJII DI EKA

Kaa b a a ba (), a Va aba.

Oa a a, a a a aa ba


26/31

26

Ba aba

aa / Zaaa ba

baa

aa

aa

a

aaaaa

ca

400

450

500

530

550

600

700

aaaaa

cacbaa

baaaa

a


27/31

27

::

a

baca

aa a ()


28/31

28

/ EKFEA/ EKFEA

:

a

ca

a


29/31

29

I0 a a aa

I a a a a

UV 200400

V 400800

A = I0/ I


30/31

30

/ :a UV/ V aa

a, aba (A), a a (T)

Oaa aba UV/ V a:a, a, a, CH2C2

K (a a a) a ac aa, a UV/ V a

UV/V a

U a , a a UV/ V a a a () aa aca


31/31

31

LIEAA:LIEAA:

1. D. A. S, J. J. La, Pc Ia Aa, 4 E.,Sa C Pb, 1992.

2. L.G. Wa, Oac C, 6 E., Pc Ha, N J, 2006.

3. P. Y. Bc, Oac c, 4 E., Pc Ha, N J, 2004.

aa a () a b aaa:://.b.c/ac?=O39aU&a=

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197718476 UV Vis Spektroskopija