IR?????: - PowerPoint PPT Presentation

1 / 51
About This Presentation
Title:

IR?????:

Description:

... attenuated total internal reflectance FTIR,ATR-FTIR photoacoustic ... spectroscopy, DRS ... – PowerPoint PPT presentation

Number of Views:127
Avg rating:3.0/5.0
Slides: 52
Provided by: ll39
Category:

less

Transcript and Presenter's Notes

Title: IR?????:


1
??? ????
  • ?????????
  • ????????????
  • ????????????
  • ??????
  • ???????

2
????????????
  • IR?????
  • ????????(?m),?????(??/cm)
  • ??????????T??
  • ???????
  • 1 ??????(????)
  • 2 ?????? ,?? vs (very strong), s
    (strong),
  • m (medium), w (weak), vw (very
    weak),
  • b (broad) ,sh (sharp),v (variable)
    ??
  • 3 ?????? (????????)

3
(No Transcript)
4
?????????
  • ?????????
  • ????0.752.5 ?m,133334000/cm,
    ???(???? ??????????)
  • ????2.525 ?m,4000400/cm,
    ?????(??????????)
  • ????25 ?m??, ???(?????????)

5
????????????????? ?????????????
  • ???????
  • ???2.525?m,??4000400/cm???????,???????????
    ????????????

1????? ??????????
2???????????????????
6
  • ???????
  • ???????

???????
7
?????????
  • ????????
  • ???? -----?????? ?s
  • ----??????? ?as
  • ???? ----?????? ----???? ?s

  • -----???? ?
  • -----??????- ----?????
    ?

  • -----???? ?
  • ?????? ?as gt ?s gt ?s
  • ??? ? ? ???
  • ???????????????????????????.

8
????????
  • ?n??????,????
  • ????? 3n-5 ?
  • ?????? 3n-6 ?
  • ?????????IR????1????,???IR???????????????,???
  • 1 ?????,????????????????
  • 2 ??????????,??????(???)
  • 3 ?????????????
  • 4 ???????????
  • 5 ?????,?????

9
?????IR??

  • ? ? ? ?
  • OCO OCO OCO OCO
  • ? ? ? ? ?
    ? ?
  • ?????? ??????? ??????
    ??????
  • ?????? 2349
    667 667
  • ??OCO? IR????2349 ? 667/cm ?????

10
(No Transcript)
11
IR?????????
  • IR?????
  • ????????(?m),?????(??/cm)
  • ??????????T??
  • ???????
  • 1 ??????(????)
  • 2 ?????? ,?? vs (very strong), s
    (strong),
  • m (medium), w (weak) vw (very
    weak),
  • b (broad) ,sh (sharp),v (variable)
    ??
  • 3 ?????? (????????)

12
????
13
????
  • ??????????????
  • ????????????????????????????????V 0 ? V1
  • ???(2?)??????????????????,??????????????,????????n
    ???2 ??????
  • ????????????????(?? ? 1 ?2)??(?1 -
    ?2????????????????
  • ??????????????????????

14
?????????
15
????????????
16
????????????
17
????????????
  • ????????
  • ??????????(FTIR)
  • ???????

18
??????????
??????
19
FTIR??????
  • ?????(???/?),????,?????(??601)?
  • ????,????????,??????,??????
  • ?????,???????,????????,???GC?LC???
  • ???????,???45006cm-1
  • ????,?????,?????0.05/cm
  • ???????????
  • ??????,????????????,?????

20
???????
  • 400-2500cm-1??X-H?????????
  • 2500-2000cm-1???????????????
  • 2000-1500cm-1??????????
  • 1500-600cm-1???????C-H???????

21
(No Transcript)
22
???
  • C-H??????????(?s)????????(?as)
    ,?3000-2800cm-1??,?as??s??????
  • C-H?????1475-1300 cm-1 ,????????????1375 cm-1?
    ,?????????,????????
  • C-C????800-720cm-1???-(CH2)n-???????, ngt4 725,
    n3 729-726,
  • n2 743-734, n1 785-770
  • C-C????1253-800cm-1, ??????????

23
?????
24
(No Transcript)
25
(No Transcript)
26
?????????
27
2,2,4-???????????
28
(No Transcript)
29
(No Transcript)
30
???
31
????
  • ??
  • ??
  • ???

32
?????????
33
???????????????
  • ????????,???????
  • ???????????,???????
  • ??????????????????,????10-20??-1?
  • ??????????30??-1 ?

34
?2-9 1-????????   3060cm-1 ??CH????1820910cm
-1?? 1650cm-1 CC????995,905cm-1 CCH2
???????
35
? 2-10 ?????2,2,5,5????????? a ?? b ??  
36
C-H???????????????????
37
?????
  • ??C-H????3340-3300??-1,??????????,?????
  • C-C??????2100??-1 ,????,?????????,???????????????
    ??????,??????
  • ?????,C-N?????????2300-2220??-1,???????,??????

38
????
3340cm-1 ??CH????,3020cm-1
??CH???? 2115cm-1 CC??????
39
1-??
40
????
  • ???????????,????,1600cm-1???,?2000-1915cm-1?1100-1
    000??-1?????????????,????900cm-1,??????,??????

41
???
42
????C-H??????????????????????
43
???????????????????(??????)
44
????????
45
?????????
1630cm-1CC????1600,1580,1450cm-1??????
46
a-?????????
47
??????????(a. ?? b. ?? c. ??)
48
???????
  • 400-2500cm-1??X-H?????????
  • 2500-2000cm-1???????????????
  • 2000-1500cm-1??????????
  • 1500-600cm-1???????C-H???????

49
?????????
  • ????????
  • ???????
  • ????????????
  • ?????
  • ??????????
  • ???????(3600-1350),?????(1350-400)?
  • ????,????
  • ???????,???????
  • ?????????,???????????????????????
  • ???????????????????????????,??????????

50
?????????????
  • ?????(IR microscope)
  • ??????????????(diffuse reflectance spectroscopy,
    DRS)
  • ????????????????(attenuated total internal
    reflectance FTIR,ATR-FTIR)
  • ??????(photoacoustic spectoscopu, PAS)
  • ??????????/????(GC/IR)?????????????????

51
????????????
? ?????B????????? I ???? II B???
Write a Comment
User Comments (0)
About PowerShow.com