Cov txheej txheem:

Koj muab lub npe Iupac rau alkanes li cas?
Koj muab lub npe Iupac rau alkanes li cas?

Video: Koj muab lub npe Iupac rau alkanes li cas?

Video: Koj muab lub npe Iupac rau alkanes li cas?
Video: txhob hnov qab kuv lub npe - Bee lee [Official MV] 2022-23 2024, Kaum ib hlis
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IUPAC Cov cai rau Alkane Nomenclature

Qhia thiab npe pab pawg txuas nrog cov saw no. Sau cov saw txuas txuas ntxiv, pib ntawm qhov kawg ze tshaj ib pab pawg hloov pauv. Xaiv qhov chaw ntawm txhua pab pawg neeg hloov pauv los ntawm tus lej tsim nyog thiab npe . Sib sau ua ke npe , teev cov pab pawg nyob rau hauv alphabetical order.

Tsis tas li ntawd, ua li cas koj muab lub npe Iupac rau ib qho chaw?

Hauv cov ntsiab lus, cov npe ntawm compound yog sau tawm nrog cov hloov pauv hauv cov ntawv sau ua raws li lub hauv paus npe (muab los ntawm tus naj npawb ntawm carbons nyob rau hauv niam txiv saw). Commas yog siv los ntawm cov lej thiab cov dashes yog siv ntawm cov tsiaj ntawv thiab cov lej.

Qhov thib ob, cov organic tebchaw hu ua li cas? Compound naming kauj ruam

  • Kauj Ruam 1: Nrhiav qhov ntev tshaj plaws carbon saw nyob rau hauv peb lub compound. Peb yuav siv qhov sib xyaw no ua peb tus piv txwv rau npe.
  • Kauj Ruam 2: Lub npe uas ntev tshaj plaws carbon saw.
  • Kauj Ruam 3: Txheeb xyuas qhov xaus (suffix) yuav tsum yog dab tsi.
  • Kauj Ruam 4: Sau koj cov carbon atoms.
  • Kauj Ruam 5: Sau npe cov pab pawg sab.

Ib yam li ntawd, nws yog nug, ua li cas koj lub npe sab chains?

Cov kauj ruam rau Naming Branched-Chain Alkanes

  1. Lub npe qia, qhov ntev tshaj plaws carbon saw ua ntej. Lub qia ntawm branched-chain alkane muaj npe nyob rau hauv tib txoj kev raws li koj tau kawm rau npe ncaj saw alkanes.
  2. Txheeb xyuas cov ceg ntoo uas tshwm sim raws li qhov ntev ntawm lub qia (qhov ntev tshaj plaws carbon saw).
  3. Sau npe txhua ceg (los yog sab saw).

ch3 hu li cas?

Ib pawg methyl yog ib qho alkyl muab tau los ntawm methane, muaj ib qho carbon atom sib txuas rau peb hydrogen atoms - CH3 . Hauv cov qauv, cov pab pawg feem ntau abbreviated Me. Xws li hydrocarbon pawg tshwm sim nyob rau hauv ntau cov organic tebchaw. Nws yog ib pab pawg ruaj khov heev hauv feem ntau cov molecules.

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