Cov txheej txheem:

Yuav ua li cas koj tig lub rooj zaum conformation?
Yuav ua li cas koj tig lub rooj zaum conformation?

Video: Yuav ua li cas koj tig lub rooj zaum conformation?

Video: Yuav ua li cas koj tig lub rooj zaum conformation?
Video: [Мировая премьера] первые децентрализованные бинарные опционы брокер 2018-spectre умные вариант... 2024, Kaum ib hlis
Anonim
  1. Ob tug Chair Conformations Ntawm 1-Methyl Cyclhexane .
  2. Ua li no Conformations Hloov pauv?
  3. Kauj ruam 1: Nqa ib qho "Footrest" ntawm Cov Lub rooj zaum Ua A” Nkoj ”Hmoob.
  4. Kauj Ruam 2: Rub Lub Taub Hau Tawm Sab Nraud So Kom Ua Ib Lub Khaub Ncaws Tshiab.
  5. Cov Lub rooj zaum Flip Hloov Txhua pawg Axial rau Equatorial Ones, Thiab Vice Versa.

Ib yam li ntawd, koj ua li cas ua lub rooj zaum conformation nplhaib flip?

Kos lub rooj zaum Conformations thiab Nplhaib Flips rau Cyclohexane

  1. Nov yog kuv txoj hauv kev:
  2. Kos 2 kab sib luag me ntsis offset ntawm ib leeg.
  3. Muab ib qho chaw tso rau saum qhov qhib sab saud, thiab lwm qhov hauv qab qhov qhib qis.
  4. Txuas cov dots.
  5. Txheeb xyuas qhov 'up tip' OR 'down tip' ntawm koj lub rooj zaum conformation, thiab kos ib txoj kab ncaj nraim (up tip) los yog down (down tip) parallel to the y-plane.

Qhov thib ob, yog lub nplhaib flips enantiomers? (Daim iav duab kev sib raug zoo tuaj yeem pom los ntawm kev sib piv cov " nplhaib flip "conformation of the Chair Projection on the right to the current conformation of the Chair Projection nyob rau sab laug. Rau kev qhia txog yuav ua li cas ua ib tug " nplhaib flip , " nyem qhov no.) Yog li ntawd, cov molecules yog cov enantiomers.

Tsis tas li ntawd, dab tsi ua rau lub rooj zaum conformation ruaj khov?

Yog vim li cas yog tias thaum hloov pauv nyob rau hauv txoj hauj lwm axial, muaj feem yuav ntau kev cuam tshuam tsis zoo nrog lwm cov axial atoms ntawm tib sab. Thaum cov neeg hloov pauv nyob hauv txoj haujlwm equatorial, lawv nyob deb ntawm ib leeg. Qhov no nce lub ruaj khov ntawm kev sib haum xeeb.

Lub nplhaib flip yog dab tsi?

Hauv organic chemistry, a nplhaib flip (tseem hu ua a nplhaib inversion los yog nplhaib reversal) yog kev sib hloov ntawm cyclic conformers uas muaj qhov sib npaug nplhaib cov duab (piv txwv li, los ntawm lub rooj zaum conformer mus rau lwm lub rooj zaum conformer) uas ua rau muaj kev sib pauv ntawm cov haujlwm tsis sib xws.

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