Qhov txawv ntawm Iso thiab Neo Cov Qauv

Cov txheej txheem:

Qhov txawv ntawm Iso thiab Neo Cov Qauv
Qhov txawv ntawm Iso thiab Neo Cov Qauv

Video: Qhov txawv ntawm Iso thiab Neo Cov Qauv

Video: Qhov txawv ntawm Iso thiab Neo Cov Qauv
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Qhov sib txawv tseem ceeb ntawm iso thiab neo cov qauv yog qhov prefix iso hais txog cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ib qho tsim cov saw txuas txuas ntxiv, qhov prefix neo hais txog cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ob qho kev tsim ib nruam chain.

Peb siv cov lus sau ua ntej hauv cov tshuaj lom neeg ua kom paub qhov txawv ntawm ib qho organic molecule los ntawm lwm tus. Peb siv cov prefix no nrog rau lub npe ntawm lub compound. Txij li cov lus hais ua ntej no tshwj xeeb rau cov pab pawg ua haujlwm sib txawv hauv cov organic molecules, peb tuaj yeem txheeb xyuas cov organic molecules yooj yim txawm tias lawv muaj cov qauv tshuaj sib raug zoo.

Iso Structures yog dab tsi?

Iso yog cov lus ua ntej uas peb siv los sau npe cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ib qho tsim cov saw txuas txuas ntxiv. Yog li ntawd, peb siv lo lus no thaum muaj ib ceg nyob rau hauv lub molecule. Cov ceg no tshwm sim ntawm qhov kawg ntawm cov saw hlau.

Qhov txawv ntawm Iso thiab Neo Structures
Qhov txawv ntawm Iso thiab Neo Structures

Daim duab 01: Isopropyl Group

Peb hu cov ceg no "terminal isopropyl pawg". Piv txwv li, thaum muaj ib pab pawg methyl txuas nrog rau cov pa roj carbon thib ob ntawm cov saw hlau, peb siv cov lus qhia ua ntej iso rau lub npe no molecule. Piv txwv li: isopropyl cawv. Peb tuaj yeem siv cov lus ua ntej rau lub npe sib txuas uas muaj tsawg kawg yog 4 carbon atoms.

Neo Structures yog dab tsi?

Neo yog cov lus ua ntej uas peb siv los sau npe cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ob txoj hauv kev txuas txuas ntxiv. Qhov no txhais tau tias cov tebchaw no muaj ob ceg uas tshwm sim los ntawm cov saw hlau loj. Cov ceg no tshwm sim thaum kawg ntawm cov molecule. Peb lub npe rau pawg ua haujlwm no ua "terminal tert-butylgroup".

Qhov sib txawv tseem ceeb ntawm Iso thiab Neo Structures
Qhov sib txawv tseem ceeb ntawm Iso thiab Neo Structures

Daim duab 02: Tert-butyl Group

Yog li ntawd, yog tias peb muab lub npe nrog lub npe ua ntej neo, nws txhais tau hais tias qhov sib xyaw no peb lub npe muaj ob pawg methyl txuas rau tib lub atom ntawm lub davhlau ya nyob twg ntawm cov saw hlau. Peb tuaj yeem siv cov lus ua ntej no thaum muaj tsawg kawg ntawm 5 carbon atoms hauv cov saw hlau.

Qhov txawv ntawm Iso thiab Neo Structures yog dab tsi?

Iso yog cov lus ua ntej uas peb siv los sau npe cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ib qho tsim cov saw txuas txuas ntxiv. Peb tuaj yeem siv cov lus ua ntej rau lub npe sib txuas uas muaj tsawg kawg yog 4 carbon atoms. Ntxiv mus, peb siv cov lus ua ntej "iso" rau npe cov tebchaw uas muaj "terminal isopropyl pawg". Neo yog lub npe ua ntej uas peb siv los sau npe cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ob txoj hauv kev txuas txuas ntxiv. Peb tuaj yeem siv cov lus ua ntej no thaum muaj tsawg kawg ntawm 5 carbon atoms hauv cov saw hlau. Tsis tas li ntawd, peb siv cov lus ua ntej "neo" rau lub npe sib txuas uas muaj "terminal tert-butyl pawg".

Qhov sib txawv ntawm Iso thiab Neo Structures hauv Tabular Form
Qhov sib txawv ntawm Iso thiab Neo Structures hauv Tabular Form

Summary – Iso vs Neo Structures

Peb siv cov npe sib txawv hauv cov organic chemistry los sau cov tshuaj sib txawv. "iso", thiab "neo" yog ob qho ua ntej. Qhov sib txawv ntawm iso thiab neo cov qauv yog qhov prefix iso hais txog cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ib qho tsim cov saw txuas txuas ntxiv thaum lub prefix neo hais txog cov organic compound uas muaj tag nrho cov pa roj carbon atoms tshwj tsis yog ob txoj hauv kev txuas txuas ntxiv.

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