2.4 Cyfansoddion Organig Flashcards

1
Q

Trefn blaenoriaeth grwpiau gweithredol

A
  1. Asid Carbocsylig
  2. Aldehyde / Ceton
  3. Alcohol
  4. Alcen
  5. Halogen
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2
Q

1 Carbon (prefix)

A

meth-

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3
Q

2 Carbon (prefix)

A

eth-

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4
Q

3 Carbon (prefix)

A

prop-

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5
Q

4 Carbon (prefix)

A

bwt-

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6
Q

-an

A

Bondiau sengl Carbon ( hydrocarbonau dirlawn)

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7
Q

-en

A

Cynnwys bond dwbl Carbon (hydrocarbonau annirlawn)

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8
Q

Grwpiau Alcyl

A

Methyl (CH3) (ochr gadwyn)

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9
Q

Fformiwla Alcanau

A

CnH2n+2

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10
Q

Fformiwla Alcenau

A

CnH2n

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11
Q

Alcoholau

A

Grwp OH

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12
Q

Asidau Carbocsylig

A

-COOH

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13
Q

Fformiwla Foleciwlaidd

A

Dangos yr atomau, a nifer o bob math sydd mewn moleciwl o gyfansoddyn

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14
Q

Fformiwla Fyrrach

A

Dangos y grwpiau sydd yn y moleciwl mewn digon o fanylder i allu dadansoddi ei strwythur

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15
Q

Fformiwla Graffig

A

Dangos sut mae’r atomau yn cael eu trefnu o fewn y moleciwl

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16
Q

Fformiwla Sgerbydol

A

Dangos y grwpiau gweithredol yn unig

17
Q

Perthynas hyd gadwyn a berwbwynt

A

Arwynebedd Arwyneb bach = Llai o grymoedd VDW gwan = ymdodd+berwbwynt isel

18
Q

Cyfrannedd Berwbwynt a Hyd cadwyn

A

Berwbwynt yn cynyddu wrth i hyd gadwyn cynyddu

19
Q

Hydoddedd hydrocarbonau

A

Cadwyn carbon = hydroffobig

20
Q

Hydoddedd wrth i gadwyn carbon cynyddu

A

Cadwyn carbon hirach = llai hydawdd mewn dwr

21
Q

Berwbwynt hydrocarbon canghennog

A

Berwbwynt isel (arwynebedd arwyneb isel)

22
Q

Ceton

A

C=O yng nghanol y cadwyn

23
Q

Isomeredd Adeileddol

A

Cyfansoddion gwahanol sydd a’r un fformiwla foleciwlaidd ond fformiwla adeiladol gwahanol

24
Q

Isomeredd Cadwynol

A

Cadwyn Carbon wedi ei threfnu yn wahanol

25
Isomeredd Safle
Sgerbwd Carbon yr un peth, Grwpiau pwysig wedi symud ar y sgerbwd
26
Isomeredd Grwpiau Gweithredol
Grwpiau Gweithredol gwanaol -> cyfres homologaidd gwahanol
27
Ble ydych chi'n gallu cael Isomeredd E-Z + pam
Alcenau -> bond dwbl π yn atal cylchdroi o amgylch y bond dwbl C=C
28
Isomer-Z
Blaenoriaethau ar yr un ochr
29
Isomer-E
Blaenoriaethau ar ochrau gwahanol
30
Ymdoddbwyntiau Isomerau E vs Z
E = gallu ffitio'n agosach -> grymoedd rhyngfoleciwlaidd cryfach -> ymdoddbwynt uwch