1 / 40

SPEKTROSKOPI SENYAWA ORGANIK

KIMIA ORGANIK II. SPEKTROSKOPI SENYAWA ORGANIK. Mengapa belajar spektroskopi ?. Penentuan struktur. SPEKTROSKOPI MASSA. Mengukur massa (BM) Informasi mengenai struktur. Spektrum massa. Interpretasi spektra massa.

amina
Download Presentation

SPEKTROSKOPI SENYAWA ORGANIK

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. KIMIA ORGANIK II SPEKTROSKOPI SENYAWA ORGANIK

  2. Mengapabelajarspektroskopi? • Penentuanstruktur

  3. SPEKTROSKOPI MASSA • Mengukurmassa (BM) • Informasimengenaistruktur

  4. Spektrummassa

  5. Interpretasispektramassa • Info penting: BM senyawa. (Cont: heksana 86, heksena 84, heksuna 82) • Spektrometermassafokusganda (resolusitinggi): mengukurmassasampai 4 angkadibelakangkoma rumusmolekuldapatditentukan. (Cont.: C5H12: 72.0939 ; C4H8O: 72.0575).

  6. Awas! • Yang teramatiadalah “exact mass”, bukan “molecular weight”

  7. Kelimpahan alami beberapa isotop

  8. Massa eksak beberapa isotop

  9. Interpretasispektramassa • Adasenyawa yang ion molekulnya (M+) sangattidakstabilsehinggatidakteramati.  bisadiatasidengan ‘ionisasilunak’.

  10. Interpretasispektramassa • Spektrummassadapatdigunakansebagai ‘sidikjarimolekul’  dibandingkandengan data ‘library’ • Polafragmentasi: informasipentingbagipenentuanstruktur.

  11. Soallatihan • 12.2

  12. GugusFungsi & Fragmentasi

  13. Soallatihan • 12.3

  14. SPEKTROSKOPI DAN SPEKTRUM ELEKTROMAGNETIK

  15. SpektroskopiInframerah

  16. Spektrum IR

  17. Manfaatspektrum IR • Identifikasigugusfungsi • “Sidikjari” senyawa

  18. Serapankhasgugus-gugusfungsi

  19. SPEKTROSKOPI ULTRAVIOLETp. 500 - 503

  20. Transisielektron

  21. Spektrum UV

  22. Soallatihan

  23. Soallatihan • 14.13 • 14.14 • 14.30 • 14.31 • 14.46 • 14.47

More Related